Top 20+ Best SEO Companies in Vietnam | GEO/SEO Services Vietnam (2026)

Finding a trusted SEO company can be challenging in today’s competitive digital world. Whether you need a Vietnam SEO company for local visibility or the best SEO company in Vietnam with international experience, choosing the right SEO company Vietnam partner determines your long-term growth. In this guide, TOS highlights the most trusted SEO companies in Vietnam, from established leaders to emerging agencies trusted by global and local brands alike.

Learn more:

• SEO for Banks: Costs, Examples & Strategies to Increase Deposits
• SEO for Ecommerce Guide: How to Optimize Your Online Store
• SEO for Healthcare​: 5-Step Medical SEO Guide for Beginners

7 Essential Criteria to Choose a Trusted SEO Company

Before exploring the top SEO companies in Vietnam, the US, or Australia, it’s crucial to understand the key factors that define a trusted SEO company. These seven criteria will help you confidently select the best SEO partner for long-term success.

1. Strong Brand Reputation & Digital Presence

• Google visibility: Search the company name on Google. A professional SEO company in Vietnam should rank well for its own brand, have an optimized website, and be mentioned positively across reputable platforms.
• Trust signals: Check for red flags by searching phrases like “scam [company name]” or “complaints [company name]”. A clean online reputation is a strong indicator of credibility.
• Consultation quality: The best SEO companies offer structured consultations. Ask about their SEO methodology, KPIs, and past campaigns to gauge their strategic depth.
• Transparent workflow: A clear, documented process ensures smoother collaboration and measurable results.

2. Proven Expertise & Industry Experience

• Certifications & awards: Look for recognitions like Google Premier Partner status, these validate the company’s technical proficiency and trustworthiness.
• Longevity: A Vietnam SEO company with years of experience has likely adapted through multiple algorithm updates and understands long-term SEO success.
• Expert team: A skilled team of SEO professionals is essential for crafting tailored strategies that drive real business growth.

3. Strategic Capability & Case Studies

• Real case studies: Request detailed examples of successful SEO campaigns. Review KPIs, challenges, and outcomes to assess their problem-solving ability.
• Client testimonials: Genuine feedback from past clients offers valuable insights into service quality, communication, and ROI.

4. Transparent Reporting & Pricing

• Performance tracking: A trusted SEO company provides regular reports that clearly show progress, rankings, and ROI.
• Clear pricing: Choose agencies that are upfront about costs and deliverables to avoid hidden fees or vague commitments.

5. Industry-Specific Experience

• Niche expertise: A top SEO company in Vietnam with experience in your industry will better understand your products, audience, and competitors leading to more relevant content and smarter strategies.

6. Modern & Adaptive SEO Practices

• Trend awareness: SEO evolves constantly. The best SEO company in Vietnam stays ahead of Google algorithm updates and emerging trends to keep your campaigns competitive.
• Technical agility: From Core Web Vitals to schema markup, staying current with SEO best practices is non-negotiable.

7. Professional Communication & Documentation

• Responsive support: A professional SEO company communicates proactively and aligns its approach with your business goals.
• Advanced tools: They should use industry-standard platforms like SEMrush, Ahrefs, and Google Search Console.
• Polished documentation: Well-prepared briefs, proposals, and reports reflect strategic thinking and professionalism.

Learn more:

• Trusted Conversion Rate Optimization Services in Vietnam – TOS
• Trusted and Professional SEO Service in Da Nang | TOS

Why Choose a Trusted SEO Company in Vietnam?

Partnering with a trusted SEO company in Vietnam ensures your campaigns are managed ethically and strategically. A Vietnam SEO company with proven case studies can help you achieve sustainable rankings and measurable ROI. From local SEO to global campaigns, the best SEO company in Vietnam offers expertise tailored to your business goals.

Top 20 Trusted & Professional SEO Companies in Vietnam (2026)

Looking for a trusted SEO company in Vietnam to elevate your online presence? We’ve curated a list of the top 20+ SEO agencies known for their strategic execution, measurable results, and long-term client success. Leading the pack is TOS, a top SEO company in Vietnam recognized for its ethical practices and global accolades.

1. TOS – Total AIO, GEO Solution

Founded in 2016, TOS is widely regarded as one of the best SEO companies in Vietnam, offering safe, sustainable, and conversion-driven SEO solutions. As the first authorized SEMrush partner in Vietnam, TOS brings over 8 years of hands-on experience helping brands grow through white-hat strategies aligned with Google’s standards.

With a team of seasoned SEO professionals, TOS continuously evolves its approach to stay ahead of algorithm updates. The agency has successfully delivered results for more than 150 clients across 20+ industries including eCommerce, finance, education, real estate, and consumer goods.

TOS is not only a trusted SEO company in Ho Chi Minh City, but also one of the most reputable names in the Vietnamese SEO landscape. With an impressive 85% client retention rate, TOS proves its value through consistent performance and customer satisfaction.

Full-Service SEO Solutions by TOS

As a top SEO agency in Vietnam, TOS offers end-to-end SEO services tailored to business goals:

• Website audit & technical SEO fixes
• Strategic keyword research & competitor analysis
• SEO-friendly website design & development
• High-quality content creation & on-page optimization
• White-hat backlink building, Google Map SEO, WordPress SEO
• Transparent workflows & performance reporting

TOS works closely with marketing managers and directors to achieve KPIs for organic traffic, offering strategic guidance and hands-on execution.

Global Recognition & Awards

TOS is a globally trusted SEO company with accolades such as:

• 🏆 2023 Global Agency Awards – Top 100 Agencies Worldwide
• 🏆 2023 Global Tech Awards – SEO Category Winner
• 🏆 2023 APAC Search Awards – Top 12 SEO Campaigns in Asia
• 🏆 Recognized by CLUTCH in 2024 as Top #3 Best SEO VN, #1 SEO in Vietnam for Fintech, Healthcare, Education, Retail, and Manufacturing

TOS is trusted by leading brands such as Vingroup, Viettel Group, Shopee, TCL, Yamaha, Timo, Jio Health, Reebok, Pebsteel, ISHCMC, DHC, Lazada, Elsa, iSchool, ZaloPay,…

TOS is widely recognized as the trusted SEO company in Vietnam offering transparent, white-hat, and performance-driven SEO solutions. With proven success across 20+ industries, it’s consistently rated among the top SEO companies in Vietnam by global award platforms.

Why Choose TOS as Your SEO Partner?

• Smart SEO strategies based on real-world experience
• Professional team with deep Google algorithm expertise
• Competitive pricing tailored to business budgets

TOS SEO Commitments

• Keyword Ranking Boost: Guaranteed Top 1–10 Google rankings for high-conversion keywords
• Organic Traffic Growth: SEO campaigns that drive passive traffic with higher conversion potential
• Conversion Optimization: Integrated inbound tools like email, chatbot, and popups to maximize lead generation

2. SEONGON – Best SEO Company SEO Trust

SEONGON is widely recognized as one of the most trusted SEO companies in Vietnam. With a team of professional SEO specialists, SEONGON delivers high-performance SEO services that help businesses rank at the top of Google search results. Their strategies are highly rated by marketing experts and consistently updated to align with global SEO trends.

As a leading SEO company in Vietnam, SEONGON has successfully executed over 900 SEO projects and more than 10,000 advertising campaigns. These efforts have helped hundreds of businesses grow their organic traffic and increase revenue through reliable web SEO services. SEONGON has partnered with major brands such as VinMec, Aeon, Vinpearl, Cozy, and many others.

Core Services Offered by SEONGON:

• Top 1 Google SEO Services
• Full-Scope Digital Marketing
• Digital Branding Solutions
• Google Ads Management
• SEO Training Programs

With its reputation as a top SEO company in Vietnam and years of hands-on experience, SEONGON is a trusted choice for businesses seeking a professional SEO company that delivers results with transparency and integrity.

If you’re looking for the best SEO company SEO trust or a top SEO company in Vietnam with a proven track record, SEONGON deserves a spot on your shortlist.

3. GTV SEO – Vietnam SEO Company for Growth

GTV SEO is a leading Vietnam SEO company specializing in keyword-based SEO services in Ho Chi Minh City. Their core mission is to improve website quality and boost rankings on Google search results an essential factor in attracting high-quality leads and increasing conversions.

As a trusted SEO company in Vietnam, GTV SEO has successfully completed over 400 SEO projects across various industries, both domestically and internationally. The company has partnered with well-known brands such as Cosmetic, Mega Med, TOTO, and ZCare to deliver tailored SEO strategies that drive measurable growth.

Services Offered by GTV SEO:

• Comprehensive SEO Services
• SEO Consulting
• Website Development
• SEO-Friendly Website Design
• Inbound Marketing Solutions
• SEO Training Courses

With strong investments in both technical infrastructure and human expertise, GTV SEO continues to solidify its position as one of the most trusted SEO companies in Vietnam. Their services are especially valuable for businesses aiming to build sustainable growth through organic search.

If you’re searching for the best SEO company SEO trust or a top SEO company in Vietnam that delivers long-term results, GTV SEO is a reliable choice.

4. SEODO – SEO Company Vietnam for Brand Building

SEODO is a leading Vietnam SEO company under Conando Corp, specializing in SEO Branding and digital marketing solutions. Since its establishment in 2017, SEODO has grown steadily and is now recognized as a top SEO company in Vietnam, with a strong track record of successful projects in Ho Chi Minh City.

With a strategic focus on three core pillars business goals, user experience, and conversion optimization, SEODO delivers measurable SEO results that drive long-term growth.

As a trusted SEO company, SEODO has partnered with over 1,000 businesses to enhance their search engine performance and build strong online brand identities. Their client portfolio includes well-known names such as Vinschool, Study English, VISAHO, and Viindoo.

Recognized as one of the best SEO companies in Vietnam, SEODO offers a comprehensive ecosystem of SEO services, including:

• SEO Branding Services
• Full-Service Website SEO
• Keyword-Based SEO
• SEO Content Writing
• Local SEO Services

Whether you’re looking for the best SEO company SEO trust or a reliable partner to scale your digital presence, SEODO stands out as a top SEO company in Vietnam trusted by businesses across industries.

5. Mona Media – Top Trusted SEO Company in Vietnam

Mona Media is a fast-growing Vietnam SEO company offering high-quality website design, digital marketing solutions, premium hosting, and software services. With a vision to become a leading integrated digital agency, Mona has supported over 12,000 businesses in building online brands and expanding market share.

As a trusted SEO company, Mona delivers comprehensive SEO solutions alongside advanced tech services such as hosting, digital transformation tools, and business software. Notable clients include Cinestar, VinAI, and SCONNECT.

Mona Media’s services include:

• Full-service SEO
• Keyword SEO
• Google Maps SEO
• SEO-friendly website design
• SEO consulting for businesses
• Google Marketing training

For small and medium-sized enterprises seeking a flexible, end-to-end SEO partner, Mona Media is a top SEO company in Vietnam worth considering.

6. SEOSONA – Professional SEO Company in Vietnam

SEOSONA is a professional and trusted SEO company in Vietnam, dedicated to delivering effective Google Marketing solutions for businesses in the digital age. With a mission to help brands reach potential customers, boost conversions, and optimize costs, SEOSONA offers a wide range of services including SEO, training, and strategic consulting.

Having worked with over 1,000 businesses, SEOSONA is recognized as one of the best SEO companies in Vietnam. Clients include Decordi, Misa, and MIVIET.

SEOSONA’s services include:

• Full-service SEO
• Google Ads services
• SEO and Google Ads training
• Digital marketing strategy consulting

If you’re looking for a Vietnam SEO company that delivers reliable results, SEOSONA is a trusted SEO company that can elevate your brand online.

7. Gobranding – Leading SEO Company in Vietnam

Gobranding is a reputable SEO company in Vietnam focused on sustainable online brand development. With a team combining Japanese expertise and local talent, Gobranding offers tailored SEO solutions to help businesses expand and increase profitability.

Having completed over 10,000 SEO projects, Gobranding has helped numerous companies improve their search visibility. Key clients include OCB, Everon, and ACBL.

Gobranding’s services include:

• Full-service SEO
• Keyword SEO
• Onsite SEO
• SEO content writing

For businesses seeking a top SEO company in Vietnam with international standards, Gobranding is a strong choice.

8. SEO VIET – Affordable and Trusted SEO Company

SEO VIET is a Vietnam SEO company offering affordable SEO website design and marketing services. Known for its transparent policies and long-term effectiveness, SEO VIET has served over 8,000 clients.

Trusted by brands like Asanzo Hanoi, Panasonic, and Kaadas, SEO VIET is among the most reliable SEO companies in Vietnam.

SEO VIET’s services include:

• Full-service SEO
• Keyword SEO
• Traffic SEO
• SEO content writing
• Google Ads

If you’re looking for a trusted SEO company in Vietnam with proven experience, SEO VIET is a dependable partner.

9. Vinalink – One of Vietnam’s First SEO Companies

Vinalink is one of the pioneering SEO companies in Vietnam, specializing in keyword optimization and digital marketing strategy. With over 1,200 completed projects, Vinalink supports businesses in enhancing their SEO and digital communication.

Clients include Goldsun, SeABank, and VNU.

Vinalink’s services include:

• Marketing strategy consulting
• Content marketing
• SEO-friendly website design
• Full-service online marketing
• SEO training

For businesses seeking a top SEO company in Vietnam with deep industry roots, Vinalink offers both expertise and innovation.

10. AZASEO – Fast SEO for Top Google Rankings

AZASEO is a trusted SEO company in Vietnam focused on boosting Google rankings through white-hat SEO techniques. With a professional team and over 800 clients served, AZASEO helps businesses grow revenue through optimized search visibility.

Clients include Toyota, SAHA Land, and Beauty Supermarket.

AZASEO’s services include:

• Expert SEO (ProSEO)
• Automated SEO (Auto SEO)
• Website analysis
• Full-service SEO

If you’re searching for a Vietnam SEO company that delivers fast and reliable results, AZASEO is a top contender.

11. LADIGI – Professional SEO and Digital Marketing Company

LADIGI is a reputable SEO company in Vietnam offering both services and training in digital marketing. With over 500 SEO projects completed, LADIGI is trusted by businesses such as Duy Tân Plastics, VTC, and DVP Market.

LADIGI’s services include:

• Full-service website SEO
• SEO content writing
• Google & Facebook advertising
• Website design

For businesses looking for a trusted SEO company in Vietnam to support digital campaigns, LADIGI is a reliable partner.

12. MOA Vietnam – Strategic SEO for Higher Rankings

MOA Vietnam is a professional SEO company in Vietnam focused on helping businesses increase visibility and drive sales through strategic SEO. With over 200 projects completed, MOA Vietnam has supported brands like Daily Auto, Việt Soup, and Yến Bạc.

MOA Vietnam’s services include:

• Full-service website SEO
• Digital marketing
• Advertising services

MOA Vietnam is a trusted SEO company for businesses seeking fast growth and strong online presence.

13. VietProtocol – Trusted SEO Company with 10+ Years of Experience

VietProtocol is a Vietnam SEO company with over a decade of experience delivering full-service SEO for retail and e-commerce businesses. Known for its ethical approach, VietProtocol focuses on sustainable SEO strategies without using black-hat techniques that could harm client websites.

VietProtocol’s services include:

• Full-service SEO
• Website design
• Online advertising
• Digital marketing

For businesses seeking a trusted SEO company in Vietnam with long-term vision, VietProtocol is a reliable choice.

14. Bigweb – Professional SEO and Website Design Company

Bigweb is a reputable SEO company in Vietnam offering website design, online advertising, SEO, SEM, and business email services. With a commitment to professionalism and quality, Bigweb has supported many businesses in optimizing their search strategies. Key clients include Vipharco, MISO, and Nano BMT.

Bigweb’s services include:

• SEO-friendly website design
• Google Ads
• Professional SEO services

If you’re looking for a Vietnam SEO company that combines design and search expertise, Bigweb is a solid option.

15. HAPODIGITAL – Sales-Driven SEO Company in Vietnam

HAPODIGITAL specializes in performance-based SEO for sales growth. With over 3 years of experience and 3,000+ clients served, HAPODIGITAL helps websites rank higher and gain visibility. Clients include Thái Dương, VinHome, and KidPlaza.

HAPODIGITAL’s services include:

• Full-service SEO
• Backlink services (press & social)
• SEO-friendly website design

For businesses focused on conversion and visibility, HAPODIGITAL is a trusted SEO company in Vietnam.

16. Leading.vn – Strategic SEO Consulting Company

Leading.vn is a Vietnam SEO company offering strategic consulting to help businesses adapt to the digital age. With clients like Gobear, VNTrip, and TopDev, Leading has helped brands improve search performance and online presence.

Leading.vn’s services include:

• SEO services
• Online advertising
• Social media marketing
• Online brand management

If you’re seeking a top SEO company in Vietnam for strategic growth, Leading.vn is a smart partner.

17. JpWeb – High-Quality SEO and Website Optimization

JpWeb is a trusted SEO company in Vietnam focused on optimizing website content and design for better Google rankings. With over 1,000 projects completed, JpWeb has worked with both local and international clients including GV Lawyers and Chuyển nhà 24h.

JpWeb’s services include:

• SEO-friendly website design
• Full-service SEO
• Keyword SEO
• SEO audit

For businesses seeking a reliable Vietnam SEO company with technical expertise, JpWeb delivers strong results.

18. Navee – SEO Centric Digital Marketing Company

Navee is a Vietnam SEO company known for integrating SEO into full-scale digital marketing campaigns. With 500+ campaigns delivered, Navee helps businesses grow brand awareness and online performance. Clients include Minh Thư Fashion, Hoàng Gia Pearls, and Thế giới GEAR.

Navee’s services include:

• Website SEO
• Landing page design
• Marketing automation
• Digital marketing

If you’re looking for a top SEO company in Vietnam with a holistic approach, Navee is a trusted choice.

19. SEOTORO – Top SEO Website Company in Vietnam

SEOTORO is a digital marketing agency offering a wide range of services to boost online visibility. With over 200 campaigns and 100+ clients, SEOTORO has worked with brands both in Vietnam and internationally.

SEOTORO’s services include:

• Full-service SEO
• SEO content writing
• High-authority backlink services
• Social media management

For businesses seeking a trusted SEO company in Vietnam with global reach, SEOTORO is a strong contender.

20. SEO Cong Huong – Strategic SEO Company with Proven Results

SEO Cong Huong is a reputable Vietnam SEO company with years of experience in digital marketing. With a skilled team and client-focused mission, the company delivers strategic SEO solutions that drive measurable results.

SEO Cong Huong’s services include:

• Full-service SEO
• Keyword SEO
• Traffic SEO
• SEO content writing

If you’re searching for a trusted SEO company in Vietnam to elevate your brand, SEO Cộng Hưởng is a reliable partner.

Top 10 Trusted & Professional SEO Companies Worldwide in 2026

1. WebFX – #1 Best SEO Company Worldwide

WebFX is a globally recognized trusted SEO company headquartered in Pennsylvania, USA. Known for delivering end-to-end SEO solutions from foundational site optimization to advanced, data-driven strategies, WebFX has earned its reputation as one of the best SEO companies in the world.

With a powerhouse team of over 500 seasoned SEO professionals and a portfolio of 1,000+ successful projects, WebFX has partnered with industry giants like Google, Facebook, and Bing, serving clients across diverse sectors including tech, retail, healthcare, and finance.

Their commitment to innovation, transparency, and measurable results makes WebFX a top choice for businesses seeking scalable SEO growth and long-term digital success.

• Location: Pennsylvania, USA
• Website: webfx.com

2. Ignite Visibility – Top SEO Website Company

Based in San Diego, California, Ignite Visibility is a premier digital marketing agency specializing in B2B SEO, CRO, content marketing, social media, PR, and paid advertising. Known for its strategic innovation and expert team, Ignite delivers high-performance solutions tailored to business goals.

• Location: San Diego, California, USA
• Website: ignitevisibility.com

3. Intero Digital – Full-Service SEO & SEM Leader

Headquartered in Colorado Springs, Intero Digital offers integrated digital marketing services including SEO, paid media, Amazon marketing, social media, and conversion rate optimization. Their holistic approach helps businesses boost traffic, revenue, and long-term ROI.

• Location: Colorado Springs, CO, USA
• Website: interodigital.com

4. Boostability – SEO for SMBs

Boostability specializes in SEO, website creation, and social media marketing for small and medium-sized businesses. With a partnership-driven model, Boostability enhances online reach and credibility while delivering strong ROI for growing brands.

• Location: Lehi, Utah, USA
• Website: boostability.com

5. Ignite Digital – Custom SEO & Marketing Solutions

Founded in 2008, Ignite Digital is a Canadian digital marketing agency offering SEO, social media management, and website development. Their customized strategies align with each client’s industry and brand message for maximum impact.

• Location: Mississauga, Ontario, Canada
• Website: ignitedigital.com

6. SmartSites – SEO & PPC for B2B Growth

SmartSites, based in New Jersey, delivers high-impact digital marketing services including SEO, PPC, website design, and content marketing. Recognized as one of the top SEO companies in the US, SmartSites helps B2B brands scale online effectively.

• Location: Paramus, New Jersey, USA
• Email: contact@smartsites.com
• Website: smartsites.com

7. Incrementors Web Solutions – Award-Winning SEO Agency

Winner of the “2021 Best SEO Consulting Agency,” Incrementors provides customized SEO, PPC, email automation, and web development services for SMBs. Their flexible, results-driven approach helps businesses grow traffic, leads, and sales.

• Location: Sacramento, California, USA
• Email: hello@incrementors.com
• Website: incrementors.com

8. Neil Patel Digital – Global SEO Expertise

Founded by marketing expert Neil Patel, NP Digital is a global SEO agency specializing in paid media, keyword research, and strategic campaign development. Trusted by international brands, NP Digital delivers measurable results through data-driven strategies.

• Location: Las Vegas, Nevada, USA
• Website: npdigital.com

9. HigherVisibility – Strategic SEO Partner

Based in Memphis, Tennessee, HigherVisibility offers SEO, website design, and social media marketing with a focus on strategic alignment and business growth. Their client-centric approach and proven results make them a trusted SEO company in the US.

• Location: Memphis, Tennessee, USA
• Website: highervisibility.com

10. Click Intelligence – Leading UK SEO Company

Click Intelligence, based in Cheltenham, UK, provides advanced SEO solutions to improve website visibility and trust. With a team of expert SEO professionals, they serve businesses across Europe and beyond.

• Location: Cheltenham, United Kingdom
• Website: clickintelligence.co.uk

Key Benefits of Partnering with a Trusted SEO Company

Collaborating with a professional and trusted SEO company offers your business a significant competitive edge. Here’s why:

• Save Time and Resources – Focus on your core business while SEO experts handle the complex optimization work.
• Stay Ahead of Trends – Reputable SEO agencies continuously update strategies to align with Google’s latest algorithms, ensuring your website remains compliant and competitive.
• Achieve High and Sustainable Rankings – Using white-hat SEO techniques, your site can grow safely in search rankings without risking penalties from Google.
• Attract High-Quality, Targeted Traffic – Professional SEO drives real users with genuine interest in your offerings, increasing conversion rates not just vanity metrics.
• Enhance User Experience (UX/UI) – Improve page load speed, navigation, and interface design to keep visitors engaged longer.
• Data-Driven Strategy with Transparent Reporting – Every decision is backed by analytics, and you receive clear reports on campaign performance.
• Long-Term Cost Efficiency – Compared to paid advertising, SEO delivers sustainable results and a higher return on investment (ROI) over time.

Real SEO Case Studies and Results by TOS

How the Best SEO Company in Vietnam Helped ZaloPay Accelerate Organic Growth

Background
Vietnam’s e-wallet industry is expanding rapidly, with more than 40 active wallets and intense competition for visibility. Although ZaloPay had strong brand recognition, it needed to strengthen its digital footprint to attract new users and stand out in the fintech space.

Challenge
Two major Google algorithm updates significantly impacted ZaloPay’s keyword rankings, slowing traffic growth despite a solid content foundation.

Strategy
The TOS team redesigned the campaign using a full-funnel approach:

• Awareness stage: Optimized feature and partner pages to attract comparison-driven users.
• Consideration stage: Targeted incentive and promotion keywords to re-engage active shoppers.
• Conversion stage: Enhanced branded pages with strong CTAs and optimized banners. 

Content expansion into lifestyle topics such as food, shopping, and travel further broadened reach.

Results

• +321% increase in keyword performance in Phase 1
• 103% organic growth (Apr–Dec 2022)
• 132% non-brand keyword growth, surpassing competitors like Momo and VnPay

TOS’s strategic SEO execution turned ZaloPay into one of Vietnam’s fastest-growing digital payment brands.

How the Best SEO Company in Vietnam Helped ELSA Speak Dominate the English Learning App Market

Background
Vietnam’s young, smartphone-savvy population makes it one of the most promising markets for English learning apps. Among dozens of competitors, ELSA Speak stands out with its advanced AI-powered speech recognition technology, which helps users improve pronunciation and speaking confidence as if learning with a real teacher.

To reach a wider audience searching for “how to learn English” and “English learning apps,” ELSA partnered with TOS to execute a comprehensive, multi-phase SEO campaign.

Strategy
TOS developed a full-funnel approach:

• Top Funnel: Targeted awareness keywords such as English learning tips and pronunciation guides to expand reach.
• Mid Funnel: Focused on comparison and app-review keywords to convert undecided users.
• Low Funnel: Optimized branded pages, CTAs, and banners to boost app downloads.

Across 6 stages, TOS continuously optimized keyword sets, content quality, and trend-based topics to sustain growth.

Results

• Keywords ranked in Google’s Top 5–10.
• Traffic and leads increased by nearly 100%.
• Shortlisted for the Global Agency Awards 2023 – Best SEO Campaign.

TOS’s strategic SEO execution helped ELSA Speak become Vietnam’s leading English learning app.

Warning Signs of an Untrustworthy SEO Company

To avoid costly mistakes, watch out for these red flags when evaluating an SEO partner:

• Unrealistic Promises of Fast Google Rankings – Sustainable SEO takes time. Claims of “instant top rankings” often involve risky black-hat techniques that can damage your website long-term.
• Suspiciously Low Pricing – Extremely cheap SEO services may indicate poor quality, shortcut tactics, or unsafe practices that compromise your site’s integrity.
• Lack of Transparent Reporting – If a company doesn’t provide clear reports on rankings, traffic, or backlinks, they may be hiding poor performance or not doing much at all.
• Use of Black-Hat SEO Tactics – Keyword stuffing, unnatural backlinks, and cloaking content can lead to severe penalties from Google and loss of search visibility.
• No Portfolio or Case Studies – A trusted SEO company will proudly showcase successful projects. Refusing to share past work is a major red flag about their real-world experience.

Frequently Asked Questions About Top SEO Companies

The list above highlights some of the top trusted and professional SEO companies that businesses and individuals can consider for their digital growth. However, before partnering with any SEO agency, it’s essential to evaluate key criteria and watch for warning signs to avoid potential risks. Working with a reputable SEO company ensures long-term success, sustainable rankings, and a strong online presence. If you have any questions or need personalized guidance, feel free to contact the expert consulting team at TOS for timely support.

Learn more:

• Reliable and Affordable SEO Service in Hanoi | TOS
• SEO for Banks: Costs, Examples & Strategies to Increase Deposits

References:

• What Is an SEO Agency? (And How to Hire a Reputable One)
• What Is An SEO Company? (And How Do They Help You?)

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