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Top 12+ Best SEO Agencies in Vietnam (2025)

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TOS Content Editor
13th Oct, 2025

In today’s competitive digital landscape, partnering with a professional SEO agency in Vietnam has become essential for long-term growth and online visibility. A trusted Vietnam SEO agency brings deep expertise in local user behavior, competitive pricing, and quick execution that global brands value. Whether you’re looking for a reliable SEO digital marketing agency in Vietnam or comparing the top SEO agencies in Vietnam, this guide by TOS (TopOnSeek) will help you choose the best-fit partner for your business success.

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5 Reasons Why Businesses Should Partner Now

What Is an SEO Agency?

An SEO agency is a specialized digital marketing agency focused on SEO optimization services. Their core mission is to improve your website’s visibility and ranking on Google’s search engine results pages (SERPs).

A professional SEO services agency doesn’t just drive traffic it optimizes conversion rates, helping you reach potential customers and grow revenue sustainably.

What Does a Professional SEO Agency Do?

A top SEO agency typically provides the following core services:

  • Keyword Research – Discovering high-converting keywords tailored to your niche.
  • On-Page SEO – Optimizing content and site structure to match user intent.
  • Technical SEO – Improving site speed, crawlability, and backend performance.
  • Off-Page SEO – Building authoritative backlinks to boost domain reputation.
  • Performance Tracking – Monitoring ROI, CTR, and traffic to refine strategy.
  • Strategic Planning – Crafting long-term SEO roadmaps based on your industry.

Depending on your business goals, many SEO optimization agencies also integrate SEO into broader digital marketing strategies combining it with Google Ads, content marketing, and social media campaigns.

Top 12+ SEO Agencies in Vietnam (2025)
Top 12+ SEO Agencies in Vietnam (Source: TOS)

Why Should Businesses Work with an SEO Agency?

Building an in-house SEO team can be time-consuming and costly. Collaborating with a trusted SEO service agency in Vietnam offers several advantages:

  • Save Time & Budget – Leverage experienced teams with proven workflows.
  • Stay Updated with Google Algorithms – Professional agencies monitor algorithm changes to keep your site safe and competitive.
  • Transparent Reporting – Receive regular reports on keyword performance, traffic, and conversions.
  • Industry-Specific Strategies – Get tailored SEO plans aligned with your products, services, and target market.
  • Access to Premium Tools – Top SEO agencies invest in advanced tools like Ahrefs and SEMrush so you don’t have to.

Partnering with the right SEO agency can help you stay ahead of competitors, reduce marketing costs, and unlock scalable growth opportunities.

Top 12+ SEO Agencies in Vietnam (2025): Who to Trust & Why

The following list highlights the top SEO agencies in Vietnam, known for their proven track record in technical SEO, link building, and content strategy. Each Vietnam agency SEO listed here combines creativity with measurable performance to help businesses achieve higher search visibility and ROI.

SEO AgencyYear FoundedKey StrengthsNotable Clients
TOS (TopOnSeek)2016SEO Performance, Comprehensive SEOLazada, ZaloPay, Timo
SEONGON2011Full-scale SEO (PPP Model), Digital BrandingLPBank, Vimec, Richy
GTV SEO2016Comprehensive SEO, Inbound MarketingVinamilk, Bamboo Airways
MONA Media2016Integrated Marketing, Web DesignVinAI, SCONNECT
SEOSONA2021Full-scale SEO, Google AdsMisa, Decordi, POS365
GOBRANDING2013Japan – Vietnam Hybrid SEO Approach5,000+ Clients
SEODO2017SEO Branding, Performance SEOVinschool, Mobifone, VNPay
Navee2019Multi-channel SEO, Digital MarketingMat Bao, VNNIC, Hoang Gia Pearl
Giai Phap SEO2022Full-scale SEO for SMEs1,000+ Projects
AJ Marketing2019SEO & Influencer MarketingAdobe, TikTok, Alibaba
On Digitals2019SEO Strategy & Technical SEOVinamilk, Sika, Sacombank
FOOGLESEO2018Content-oriented SEOCellphones, Bach Hoa Xanh

1. TOS (TopOnSeek) – Leading SEO Marketing Agency in Vietnam

Established in 2016, TOS (TopOnSeek) has grown into one of Vietnam’s leading SEO agencies, known for delivering sustainable growth and measurable results. As a trusted SEO optimization agency, TOS strictly applies 100% white-hat SEO techniques in compliance with Google’s policies, ensuring long-term, organic growth and minimizing risks from algorithm updates.

TOS is also proud to be the first authorized partner of SEMrush in Vietnam. As a best SEO Companies in Vietnam, TOS has served over 20+ clients who are among the top 3 players in their industries including eCommerce, banking, logistics, recruitment, real estate, home & interior, healthcare, and beauty. Impressively, 85% of clients continue with multi-phase contracts.

As a leading SEO services agency, TOS provides tailored SEO solutions across various industries:

seo services by TOS
TOS – Reliable partner for your SEO success (Source: TOS)

TOS provides end-to-end SEO solutions designed for long-term success, including:

  • Website Audit & SEO Fixes – Identify and resolve technical issues.
  • Strategic SEO Consulting – Keyword research, competitor analysis, and market insights.
  • SEO-Friendly Web Design – Build websites optimized for search engines.
  • SEO Content Creation – Write and refine content based on ranking trends.

With a team of experienced SEO professionals, TOS supports CMOs, marketing managers, and team leads who are responsible for unpaid traffic KPIs helping them optimize marketing budgets and improve ROI.

TOS commitments to our clients
TOS – Trusted SEO agency committed to real performance (Source: TOS)

As a pioneer among performance-driven SEO agency Vietnam, TOS focuses on delivering three core outcomes:

Keyword Ranking Growth (Guaranteed Top Google Rankings)

According to heatmap data from Google’s first page, higher keyword rankings lead to significantly better click-through rates and website visits. That’s why businesses aim to rank in the Top 1, Top 3, Top 5, or Top 10 for keywords related to their products and services boosting conversion rates and sales.

Increase in Organic Traffic

Growing organic traffic from Google search is a powerful way to attract passive customers. Users who find your site through search or direct visits are twice as likely to convert compared to other channels. Organic and direct traffic are strong indicators of your website’s overall health and brand authority.

Higher Conversion Rates

TOS’s high-quality SEO services go beyond traffic they focus on inbound marketing strategies that maximize conversions using tools like email marketing, chatbots, and popups. With a clear competitive edge, TOS remains one of the best SEO service agencies in Vietnam, trusted by major brands such as Lazada, Elsa, iSchool, ZaloPay, Timo, Kizuna, Shynh Beauty, NTX, and more.

Transparent SEO Pricing by Service Category

TOS offers customized pricing for each SEO service, ensuring clarity and flexibility for businesses of all sizes. Whether you need a full-service SEO partner or a niche-focused SEO marketing agency, TOS offers the expertise and flexibility to help your business grow.

TOS’s SEO Service Pricing by Service Type:

TOS’s SEO Service Pricing by Service Type
TOS’s SEO Service Pricing by Service Type (Source: TOS)
TOS Co., Ltd.
Website: https://www.toponseek.com/en/
Hotline: +84 28 7302 2558
Email: long.bui@toponseek.com
Addresses:
TOS Ho Chi Minh City (Main Office): 4th Floor, Nguyen Giap Building, 42/37 Hoang Dieu Street, District 4, Ho Chi Minh City, Vietnam
TOT Ho Chi Minh City: 4th Floor, One Touch Building, 42/34 Hoang Dieu Street, District 4, Ho Chi Minh City, Vietnam
TOS Da Nang: 6th Floor, DanaBook Building, 76–78 Bach Dang Street, Hai Chau District, Da Nang City, Vietnam

 

2. SEONGON – Experienced SEO Services Agency in Vietnam

SEONGON is a well-established SEO agency in Vietnam, operating under Thinh Vuong Media Co., Ltd., and known for its strategic approach to sustainable growth. Founded in 2011 by Mr. Mai Xuan Dat – a leading expert in digital marketing this SEO marketing agency stands out with its holistic PPP SEO strategy (Plan – Process – People), combining technical SEO, high-quality content, and user experience optimization.

With over 12 years of experience and more than 5,000 successful SEO projects, SEONGON has partnered with major brands such as LPBank, Korea Tourism Organization, Vimec, and Richy. As one of the top SEO agencies in Vietnam, SEONGON is trusted by businesses seeking sustainable growth through transparent and in-depth SEO services.

Core services include:

  • PPP SEO Strategy – A holistic approach combining planning, execution, and team expertise.
  • Digital Branding – Building brand identity across digital channels.
  • Paid Advertising – Managing Google Ads and Facebook Ads campaigns.
SEONGON - top SEO agency in Vietnam using Google Ads and SEO integration
SEONGON is a well-known SEO agency in Vietnam offering integrated SEO and Google Ads services. (Source: TOS)
Email: contact@seongon.com
Phone: +84 90 1707 090
Address: 9th Floor, 343 Pham Ngu Lao Street, Pham Ngu Lao Ward, District 1, Ho Chi Minh City, Vietnam

 

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3. GTV SEO – Strategic Full-Service SEO Agency

GTV SEO is a specialized SEO agency in Vietnam, founded in 2016, offering website SEO and inbound marketing services. With over 400 diverse SEO projects (both global and local) and partnerships with 450+ brands, this agency for SEO is known for its structured approach combining deep keyword research, technical optimization, and quality content development.

GTV SEO has worked with renowned brands such as TOTO, Vinamilk, Bamboo Airways, and Mega Med, helping them improve search rankings, increase traffic, and boost revenue through strategic SEO execution.

Core services include:

  • End-to-End SEO Campaigns – From audit to execution, tailored for long-term growth
  • SEO-Friendly Website Design – Optimized architecture and UX for better rankings
  • Inbound Marketing Solutions – Content strategies that attract and convert
  • SEO Consulting – Strategic guidance for businesses seeking performance-driven SEO
  • SEO Training Programs – Upskilling internal teams with hands-on SEO expertise

With a proven track record and a focus on sustainable growth, GTV SEO remains a trusted SEO marketing agency for businesses looking to scale their digital presence.

GTV - top SEO agency in Vietnam providing professional SEO services
GTV is one of the top SEO agencies in Vietnam, offering data-driven SEO optimization services. (Source: TOS)
Email: info@gtvseo.com
Address: No. 91, Street No. 6, Cityland Park Hills Residential Area, Ward 10, Go Vap District, Ho Chi Minh City, Vietnam

4. MONA Media – SEO Marketing Agency with Integrated Solutions

Established in 2016, MONA Media is a full-service SEO marketing agency in Vietnam, known for its long-term SEO strategies focused on keyword optimization, user experience, and conversion rate improvement.

With over 1,000 website design projects and hundreds of marketing campaigns delivered, MONA Media has supported brands like VinAI, SCONNECT, VIETPASSION, and LALUZ Parfums enhancing SEO performance and driving sustainable revenue growth.

Core services include:

  • Premium Website Design – Custom-built websites optimized for SEO and user engagement
  • Digital Marketing Solutions – Integrated campaigns across search, social, and content
  • Cloud VPS & Hosting – High-performance infrastructure for scalable digital operations
  • Brand Strategy Development – Positioning and messaging tailored to target audiences
  • Software as a Service (SaaS) – End-to-end development and deployment of digital platforms

With a strong focus on performance and scalability, MONA Media remains a trusted SEO agency for businesses seeking full-stack digital growth.

Mona Media - SEO marketing agency and web development company in Vietnam
Mona Media is a leading SEO marketing agency in Vietnam specializing in website design and SEO optimization. (Source: TOS)
Email: info@themona.global
Address: 1073/23 Cach Mang Thang Tam Street, Ward 7, Tan Binh District, Ho Chi Minh City, Vietnam

5. SEOSONA – Trusted SEO Agency for Traffic Growth

SEOSONA is a Google marketing agency specializing in SEO and Google Ads, founded in April 2021. Despite being relatively new, this SEO agency in Vietnam has quickly established its reputation through comprehensive SEO strategies that optimize keywords, content, and user experience helping businesses achieve sustainable growth.

With over 1,000 clients and 1,000+ successful projects, SEOSONA has worked with brands such as Misa, Decordi, POS365, and Vietmap improving keyword rankings and increasing revenue through organic search.

Core services include:

  • SEO Campaigns – End-to-end strategies for keyword visibility and traffic growth
  • SEO Training Programs – Hands-on courses to upskill internal marketing teams
  • Website Management & Optimization – Technical and content improvements for better performance

With a performance-driven mindset and a growing portfolio, SEOSONA is a trusted SEO agency for businesses seeking fast, measurable results in competitive markets.

Top SEO agency Vietnam – Seosona
Seosona – Best SEO service agency for content sharing. (Source: TOS)
Email: info@seosona.com
Address: Building 59, Che Lan Vien Street, Tay Thanh Ward, Tan Phu District, Ho Chi Minh City, Vietnam

6. GOBRANDING – Japanese-Backed SEO Marketing Agency in Vietnam

Founded in 2013, GOBRANDING is a performance-driven SEO marketing agency offering SEO services, content marketing, and Google Ads. With a team of seasoned experts from Japan and Vietnam, GOBRANDING combines advanced technology with deep market understanding to deliver long-term SEO success.

Their process begins with a detailed analysis of client needs, followed by strategic SEO planning and optimization of content and website structure. As a trusted SEO agency in Vietnam, GOBRANDING has helped thousands of businesses enhance their online presence and thrive in competitive markets.

With over 5,000 clients and 10,000+ campaigns across 190 industries, GOBRANDING has become a strategic partner for sustainable growth and high-performance SEO.

Top SEO agencies Vietnam – GOBRANDING
GOBRANDING – Leading agency for SEO branding. (Source: TOS)
Email: contact@gobranding.com.vn
Address: GOBRANDING Building, 235 Ly Thuong Kiet Street, Ward 6, Tan Binh District, Ho Chi Minh City, Vietnam

7. SEODO – Performance-Focused SEO Branding Agency

SEODO is a top SEO agency in Vietnam specializing in SEO branding strategies that not only improve rankings but also build strong brand identity. Established in 2017, this SEO optimization agency has successfully delivered over 1,000 SEO projects and supported 50+ major corporations including Vinschool, Mobifone, and VNPay.

By combining advanced technical SEO with brand-focused thinking, SEODO enhances user experience, boosts conversion rates, and drives sustainable website growth. Their online marketing strategies help businesses increase revenue and expand market share.

SEO digital marketing agency Vietnam – SEODO
SEODO – Premium SEO services agency. (Source: TOS)
Email: Account@seodo.vn
Address 1: 56 Yen The Street, Ward 2, Tan Binh District, Ho Chi Minh City, Vietnam
Address 2: 23 Truong Thi 1 Street, Chinh Gian Ward, Hai Chau District, Da Nang City, Vietnam
Address 3: 11 Vuong Thua Vu Street, Khuong Thuong Ward, Thanh Xuan District, Hanoi, Vietnam

8. NAVEE – Multi-Channel SEO Agency in Vietnam

NAVEE is one of the best SEO agencies in Vietnam, offering comprehensive SEO services that improve Google rankings, increase traffic, and optimize conversions. With deep keyword research and sustainable SEO methods, NAVEE delivers long-lasting results across various industries.

Having executed over 600 digital marketing and SEO campaigns for sectors like eCommerce, real estate, education, and healthcare, NAVEE has earned the trust of 200+ businesses and helped generate 40,000+ potential leads. For companies seeking a reliable SEO service agency in Vietnam, NAVEE is a top choice.

NAVEE - best SEO service agency in Vietnam for business growth
NAVEE is among the best SEO service agencies in Vietnam, helping brands improve visibility and online performance. (Source: TOS)
Email: info@navee.asia
Address 1: 20 Phan Liem Street, Dakao Ward, District 1, Ho Chi Minh City, Vietnam
Address 2: 13 Cao Thang Street, Ward 4, District 3, Ho Chi Minh City, Vietnam
Address 3: 8th Floor, 381 Doi Can Building, Ba Dinh District, Hanoi, Vietnam

9. Giai Phap SEO (GPSC) – SEO Agency Supporting SMEs

Giai Phap SEO (GPSC) is a Vietnam-based SEO agency focused on helping businesses improve Google rankings, website performance, and revenue growth. Though officially founded in 2022, GPSC is built on over 8 years of experience from CEO Dang Le Nam and has delivered 1,000+ SEO projects and consulted for 3,000+ businesses.

This SEO services agency stands out with its holistic SEO strategy combining technical optimization, quality content, and trusted backlinks. GPSC prioritizes user experience and conversion, making it a safe and effective choice for SMEs looking for a top SEO agency in Vietnam.

SEO agency in Vietnam – GPSC
GPSC – KPI driven SEO optimization agency. (Source: TOS)
Email: account@vulong.vn
Address: BT 16, Street No. 11, Him Lam Residential Area, Tan Hung Ward, District 7, Ho Chi Minh City, Vietnam

10. AJ Marketing – Regional SEO Agency with Influencer Reach

AJ Marketing is a leading SEO agency in Vietnam that blends SEO optimization strategies with influencer marketing. Headquartered in Singapore with an office in Ho Chi Minh City, AJ Marketing has expanded across Asia, including Vietnam, Thailand, Indonesia, Japan, and South Korea.

As a modern agency for SEO services, AJ Marketing is ideal for brands seeking sustainable growth on Google through high-quality content and both on-page and off-page optimization. Notable partners include Adobe, TikTok, Alibaba, and Philip.

AJ Marketing is not just a local SEO agency in Vietnam it’s a strategic partner for international brands entering the Vietnamese market.

AJ Marketing - SEO agency Viet Nam and digital marketing expert
AJ Marketing stands out as a top SEO agency in Viet Nam, delivering effective SEO and digital marketing solutions. (Source: TOS)
Email: info@ajmarketing.io
Địa chỉ: 41A Ly Thai To Street, Hanoi, Vietnam.

11. On Digitals – Strategic & Technical SEO Agency in Vietnam

On Digitals is a fast-growing SEO agency based in Ho Chi Minh City, known for its comprehensive SEO strategies from market analysis and user behavior research to technical and content optimization aligned with Google standards.

As one of the fastest-developing SEO service agencies in the past five years, On Digitals focuses on real results: improved keyword rankings, increased organic traffic, and higher conversions. With 128+ successful SEO campaigns, they’ve worked with brands like Vinamilk, Sika, and Sacombank.

Their expert team combines deep knowledge of Google algorithms with creative content and precise technical execution helping businesses grow sustainably on search platforms.

ON Digitals - agency for SEO and digital marketing in Vietnam
ON Digitals is a creative agency for SEO in Vietnam that provides top SEO services and digital marketing campaigns. (Source: TOS)
Email: contact@ondigitals.com
Address: 75 Ho Hao Hon Street, Co Giang Ward, District 1, Ho Chi Minh City, Vietnam

12. FOOGLESEO – Content-Driven SEO Marketing Agency

FOOGLESEO is a trusted SEO agency in Vietnam with over 8 years of experience in SEO and online marketing. Known for its reliable SEO services, FOOGLESEO has partnered with major brands like Cellphones, Bach Hoa Xanh, Mobile City, and RMIT University.

With 200+ successful SEO projects, FOOGLESEO stands out for its comprehensive SEO strategy blending technical website optimization, SEO-friendly content, and high-quality backlinks. Rather than just ranking keywords, this SEO marketing agency focuses on user experience and website stability.

In addition to SEO, FOOGLESEO offers Google Ads, Facebook Ads, and digital marketing training helping businesses build a well-rounded customer acquisition strategy.

Best SEO agency Vietnam – Foogleseo
Foogleseo – Top SEO optimization agency with global reach. (Source: TOS)
Email: info@foogleseo.com
Address: 114 Street No. 10, Ward 10, Go Vap District, Ho Chi Minh City, Vietnam

International SEO Agencies Offering Professional Top Google Services

In addition to local SEO agencies in Vietnam, many businesses choose to collaborate with international SEO service agencies to access global expertise, optimized processes, and large-scale SEO campaign capabilities. Below are several top-tier SEO agencies often benchmarked or directly partnered with by Vietnamese companies for professional SEO projects.

NP Digital by Neil Patel

NP Digital is one of the world’s leading SEO agencies, founded by renowned digital marketing expert Neil Patel. With over 500 clients across various industries and more than 70 prestigious awards and nominations, NP Digital is a global powerhouse in SEO marketing.

Known for its deep SEO strategies and sustainable growth mindset, NP Digital is an ideal choice for businesses seeking a trusted SEO agency in Vietnam or abroad.

Coalition Technologies

With over 15 years of experience, Coalition Technologies is a globally recognized SEO service agency that has served more than 1,000 clients across multiple countries. The company boasts an impressive 97% client retention rate and 99% satisfaction score.

Coalition Technologies is a top SEO agency for Vietnamese businesses looking to partner with international firms to expand their multi-market SEO strategies.

Thrive Internet Marketing Agency

Thrive is a prominent SEO marketing agency based in the United States, with over 160 experts worldwide. Operating in 34 U.S. states and countries like South Africa, the Philippines, and India, Thrive offers comprehensive SEO solutions.

Thrive works flexibly with SEO agencies in Vietnam to help businesses scale their SEO and digital marketing strategies across global markets.

SEO Brand

SEO Brand is a U.S.-based international SEO agency known for combining technical SEO, brand development, and sustainable revenue growth. With over 15 years of experience, SEO Brand delivers advanced SEO services including keyword research, content optimization, link building, CRO (conversion rate optimization), and behavioral data analysis.

Their strength lies in customizing SEO strategies by industry helping businesses not only rank on Google but also build strong digital brand positioning. SEO Brand is a top choice for Vietnamese companies aiming to expand internationally or learn from global SEO agency models.

HigherVisibility

HigherVisibility is a globally respected SEO agency recognized by Forbes, Search Engine Journal, and Clutch for its multi-industry SEO success. Specializing in vertical SEO strategies and local SEO, this agency is ideal for businesses targeting specific geographic markets.

Their services include niche market analysis, local search behavior optimization, Google Business Profile management, mobile SEO, and funnel-based performance tracking. As one of the best SEO service agencies today, HigherVisibility is a valuable reference for Vietnamese SEO agencies building internationally aligned strategies.

Key Criteria for Evaluating a Reliable and Effective SEO Agency

Selecting the right SEO agency is a pivotal decision that can define the success of your digital marketing strategy. Here are six essential criteria to help you evaluate and choose a trustworthy SEO service agency:

1. Proven Experience and Expertise

  • Years in Operation – Look for agencies with at least 3–5 years of experience in the field.
  • Real Case Studies – Ask for examples of past campaigns, including traffic growth, keyword rankings, and ROI.
  • Holistic SEO Knowledge – Ensure the agency understands full-spectrum SEO not just link building.

2. Strategic Capabilities and Team Structure

  • Specialized Team – Confirm the agency has dedicated experts for content, technical SEO, and backlinks.
  • Clear SEO Roadmap – Request a detailed strategy outlining each phase of the campaign.
  • Adaptability – A top SEO marketing agency should stay current with algorithm updates and avoid black-hat tactics.

3. Transparent Reporting and Realistic Promises

  • Regular Reports – Expect weekly or monthly updates on traffic, keyword rankings, and conversions.
  • Workflow Transparency – You should have visibility into what’s being done on your website.
  • Realistic Expectations – Be cautious of agencies that guarantee top rankings in a short time it’s rarely sustainable.

4. ROI-Focused Approach and Clear Pricing

  • Revenue-Driven Strategy – The best SEO services agency focus on driving quality traffic and measurable revenue.
  • Transparent Pricing – Ask for a clear breakdown of costs by service item.
  • Performance Milestones – While SEO is long-term, there should be defined goals for each phase (3, 6, or 12 months).

5. Communication and Collaboration

  • Responsive Support – Does the agency offer dedicated account managers and timely communication?
  • Strategic Flexibility – A good agency will tailor its approach based on your market, goals, and competition.

6. Client Testimonials and Case Studies

  • Verified Reviews – Check feedback from past clients on trusted platforms to assess credibility.
  • Positive Endorsements – Choose agencies with strong testimonials that reflect consistent performance and service quality.

Client reviews and real-world case studies are powerful indicators of an agency’s value. They help you make informed decisions when selecting the best SEO agency to grow your business.

SEO Case Study by TOS – Top SEO Agency in Vietnam

Case Study: SEO Success for iSCHOOL International Integration System

Background

iSCHOOL is a nationwide education system offering programs from kindergarten to high school, combining Vietnam’s national curriculum with the Cambridge English program. Despite a strong offline reputation, iSCHOOL had one of the lowest website traffic volumes among international schools in Vietnam, with most visits coming from existing brand awareness.

To expand online visibility and reach more potential parents and students, iSCHOOL partnered with TOS to launch a comprehensive SEO campaign in 2020.

Strategy

TOS developed a full-funnel SEO strategy focused on:

  • Building trust through optimized pages about programs, teaching methods, and facilities.
  • Strengthening technical SEO by restructuring and standardizing the website.
  • Targeting three keyword levels to attract users at all stages of the decision journey:
    • Top Funnel: Educational methods, life skills.
    • Mid Funnel: “International/bilingual/private school + location.”
    • Low Funnel: Branded keywords related to iSCHOOL.

This approach balanced content creation and technical optimization, boosting both relevance and authority.

Results

Within months, iSCHOOL’s website saw remarkable organic growth:

  • From the lowest traffic in the market to top-ranking among competitors.
  • Traffic increased by 14% in the first month and grew over 100% month-over-month afterward.
  • Blog pages with new non-branded content achieved top Google rankings and became the main traffic driver.
  • The Preschool content group reached 15,500 visits/month, making it the top-performing category.

Impact

With TOS’s data-driven SEO strategy, iSCHOOL successfully transformed from an underperforming website into a leading educational brand online, proving the power of a well-planned SEO approach executed by one of the top SEO agencies in Vietnam.

Case Study: How TOS Helped ZaloPay Dominate the E-Wallet Market

Background
In Vietnam’s fast-growing e-wallet market (35% annual growth, 40+ competitors), ZaloPay faced a major challenge: increasing visibility and user acquisition in a highly competitive space.

Challenge
After two major Google algorithm updates, ZaloPay’s rankings dropped sharply across key fintech topics.

Strategy
TOS quickly adjusted the SEO plan with a multi-funnel approach:

  • Top Funnel: Optimized partner and feature pages to attract users comparing e-wallets.
  • Mid Funnel: Targeted promotional and incentive keywords to engage active users.
  • Low Funnel: Strengthened brand content and CTAs to drive conversions.

TOS also expanded into trending content (shopping, movies, travel, food) to increase reach and integrate payment-related CTAs.

Results

  • 321% of committed keyword KPI achieved (Phase 1)
  • 100% KPI completion in Phase 2
  • 103% overall organic growth (April–Dec 2022)
  • 132% non-branded keyword growth, outperforming Momo (+80%) and VnPay (+63%)

Through agile, data-driven SEO, TOS helped ZaloPay become one of Vietnam’s fastest-growing e-wallets online.

SEO Case Study by TOS - Top SEO Agency in Vietnam
SEO Case Study by TOS – Top SEO Agency in Vietnam (Source: TOS)

Overview of Vietnam’s SEO Agency Market (2025)

In 2025, Vietnam’s SEO agency market is booming as businesses increasingly prioritize SEO for sustainable digital growth.

The Rise of SEO Services in Vietnam

Vietnam’s SEO industry is expanding rapidly, driven by the country’s accelerating digital transformation. Demand for reliable SEO agencies is surging, with more brands recognizing SEO as a cost-effective, long-term marketing channel that delivers high-quality traffic.

As the market matures, Vietnam-based SEO agencies are evolving beyond basic keyword rankings. They now offer full-service SEO strategies that integrate content creation, technical optimization, and ROI-driven performance tracking making them competitive with global SEO marketing agencies.

Why Choose a Vietnam-Based SEO Agency Over an International Firm?

Vietnam-based SEO service agencies offer several strategic advantages compared to international providers:

  • Local Expertise – Deep understanding of Vietnamese language, market dynamics, and user behavior
  • Cost Efficiency – Flexible pricing models tailored to local budgets
  • Seamless Communication – No time zone or language barriers
  • Localized SEO Execution – Familiarity with local search behavior, Google Maps, and Vietnamese schema markup

For businesses looking to grow in Vietnam, partnering with a reputable local SEO agency is a practical and effective choice.

In-House SEO Team vs. Hiring an SEO Agency

Many businesses ask whether they should build an internal SEO team or outsource to an agency. Here’s a side-by-side comparison:

In-House SEO TeamSEO Agency
Pros– Immediate strategy adjustments
– Direct collaboration within your company
– No need to hire or manage staff
– Access to specialized expertise
– Faster, higher-quality execution
Cons– High recruitment costs
– Limited bandwidth per team member
– Slower execution due to multitasking
– Less direct control over team
– Varies in communication and customization depending on the agency

In-House SEO Team vs. Hiring an SEO Agency (Source: TOS)

Ultimately, the decision depends on your company’s size, budget, and growth goals. If you’re seeking fast results, specialized expertise, and want to avoid the overhead of building an internal team, hiring an SEO agency is often the most efficient and scalable solution.

Why Vietnam Is Becoming a Global Hub for SEO and Digital Marketing Agencies?

Vietnam has rapidly become one of Asia’s most dynamic digital markets, positioning itself as a growing hub for SEO and digital marketing services. The country’s strong tech infrastructure, young and skilled workforce, and cost-effective service models have attracted brands from the US, Australia, and other international markets. Businesses seeking measurable online growth increasingly turn to Vietnam-based SEO agencies that combine technical expertise with local insights and global execution standards.

Competitive Advantages of SEO Digital Marketing Agencies in Vietnam

SEO digital marketing agencies in Vietnam offer a rare balance of quality, agility, and affordability. Many top agencies, such as TOS (TopOnSeek), deliver full-service SEO strategies, including on-page optimization, technical audits, link-building, and content marketing, all tailored for international performance. Vietnam’s digital professionals are known for their adaptability, creativity, and data-driven approach, helping clients achieve sustainable results without the high costs often seen in Western markets.

How Vietnam SEO Agencies Support US & Australian Markets?

Vietnam SEO agencies are increasingly partnering with international businesses, especially from the United States and Australia, to provide multilingual and region-specific SEO strategies. These agencies understand both local search behavior and international algorithms, allowing brands to scale across borders effectively. With round-the-clock communication and fast project turnaround, a Vietnam SEO agency can be a reliable partner for companies aiming to grow visibility and performance in competitive English-speaking markets.

Frequently Asked Questions About SEO Agencies

  1. What does an SEO agency do?

    A professional SEO agency handles a wide range of tasks including keyword research, on-page optimization, backlink building, technical SEO, and content creation. These efforts aim to improve your website’s visibility on search engine results pages (SERPs), attract high-quality traffic, and increase revenue.

  2. What is SEO Vietnam?

    “SEO Vietnam” refers to the search engine optimization industry in Vietnam — a fast-growing digital market offering cost-effective SEO and online marketing services. Many SEO agencies in Vietnam provide technical, content, and digital marketing solutions for both local and international clients, helping brands improve visibility on Google globally.

  3. What is the biggest company in Vietnam?

    Vietnam is home to major corporations like Vingroup, Viettel, and FPT. In the digital field, agencies such as TopOnSeek (TOS) are recognized among the top SEO and digital marketing agencies in Vietnam, trusted by both Vietnamese and overseas businesses.

  4. Which company has the best SEO?

    Several leading agencies in Vietnam specialize in high-performance SEO. Companies like TopOnSeek (TOS), SEONGON, and GTV are known for delivering measurable results and international-standard strategies, making them some of the best Vietnam SEO agencies for businesses targeting global markets.

  5. Does TOS use white-hat SEO techniques?

    Yes. TOS adheres strictly to white-hat SEO practices, following Google’s guidelines to ensure long-term, stable rankings and protect your website from algorithm penalties.

  6. How much does it cost to hire an SEO agency?

    Pricing varies based on project scope, keyword competitiveness, and service coverage. In Vietnam, basic SEO packages typically range from 15 million to 50 million VND per month. More complex or competitive campaigns may require higher budgets.

  7. What is a Marketing SEO Agency?

    A marketing SEO agency is an SEO firm that integrates search engine optimization into broader marketing strategies. These agencies not only improve search visibility but also align SEO efforts with your overall business goals, such as branding, lead generation and conversion optimization.

  8. When should I hire an SEO agency?

    You should consider hiring an SEO service agency if:
    ▪ Your website has little or no traffic from Google.
    ▪ Your important keywords are stagnant or declining in rankings.
    ▪ You lack the time, expertise, or resources to manage SEO internally.
    ▪ Competitors are outperforming you in search visibility.
    ▪ You want a cost-effective, long-term growth strategy.

Final Thoughts

Choosing the right SEO agency in Vietnam can be the turning point for your brand’s online growth. Vietnam’s fast-growing digital market, competitive pricing, and talented experts make it a global destination for businesses seeking results-driven SEO. Whether you need a Vietnam SEO agency for technical optimization or a full-service SEO digital marketing agency in Vietnam, the right partner can help you dominate search rankings and drive real ROI.

👉 Work with TopOnSeek (TOS) – the leading SEO agency Vietnam businesses and global brands trust for measurable success. Let’s turn your search potential into sustainable growth today.

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