Top 13 International SEO Companies in 2025

To simplify your search, we compiled a list of the top international SEO companies in the world to partner with in 2025. It will give you a practical overview of trusted names in the space so you can decide which one fits your business best. In our selection process, we reviewed a mix of factors:

• Client results and case studies: One of the main indicators of an agency’s expertise is the results they achieved for other businesses, so we looked into the numbers and project summaries and selected only those that have already had international success.
• Range of services: International SEO involves more than one area of work. We noted agencies that specialize in technical SEO, create content tailored for different languages, and build visibility in markets where a brand is just getting started.
• Years of experience: We also paid attention to how long each agency has been active. Those with more history in the industry have already navigated many changes in search and bring that perspective into international projects.
• Notable partnerships: Finally, we looked at the brands that trust them. Agencies that continue to work with recognizable names or keep clients for years show that they can sustain performance over time.

13 International SEO Companies To Grow Your Business in 2025

1. SeoProfy

SeoProfy is a global SEO company that has won numerous industry awards for its data-driven strategies. The agency has worked with a wide range of industries and is trusted by international names like Preply, AutoDoc, VistaCreate, and many more.

One of the reasons why so many clients partner with them is their dedication to client success and ROI. The team conducts an extensive audit in the very beginning of collaboration and, based on the data at hand, finds the gaps and opportunities for each project.

To provide a top-notch experience, SeoProfy offers clients dedicated account managers, an expert content team that works with over 15 languages, and in-house tools that help them stay updated on clients’ results. They can help you with:

• Technical fixes (hreflang setup, duplicate content management, domain and subdomain structures)
• Content localization (adapting pages and messaging to local search behavior)
• Global SEO support (international link building, keyword and competitor research, ongoing audits)

No matter if you’ve already started expanding into new markets or just starting your journey, this data-driven SEO company has the experience, the tools, and proven results to help you maximize the benefit from both local and international SEO.

• Head Office: Orlando, Florida, USA
• Years of Experience: 13+
• Notable Clients: Preply, AutoDoc, VistaCreate, Jooble, DMarket, FXTM
• Clutch Rating: 5.0/5 (88+ reviews)
• Team Size: 50–249
• Services: International SEO, Enterprise SEO, Technical SEO, Link Building, On-Page SEO, SEO Audits, Content Writing, Local SEO, Keyword Research, (GEO) Generative Search Optimization, Ecommerce SEO, Site Migrations
• Industries: SaaS, Ecommerce, Travel, Finance, Legal, Healthcare, Real Estate, iGaming
• Methodology: Data-driven SEO supported by in-house software
• Case Results: 209% increase in traffic for a global software brand, 50% growth in website traffic for an educational business
• Pricing: Projects start at $1,000
• Special About: Content team working in 15+ languages, proprietary tools (LinkChecker.PRO, and SearchAnalytics.ai), and regular reporting

2. Delante

Delante has built its name as one of the international SEO agencies with expertise in SEM and AI. They’re known for their hands-on approach, where each project begins with audits of technical issues, content gaps, site speed, and indexing — then they piece together what needs doing region by region. Delante’s team consists of specialists from many fields who handle on-page SEO, link building, content planning, and AI visibility, all tuned for local behavior.

• Head Office: Kraków, Poland
• Years of Experience: 11+
• Notable Clients: Madison Reed, Scribe America, Phrozen, Ovoko, Douglas
• Clutch Rating: 4.9/5 (150+ reviews)
• Team Size: 50-249
• Services: International SEO services, Technical SEO, Link Building, Content Localisation, SEM, Paid Ads, On-Page SEO, Analytics, UX Optimisation
• Industries: Ecommerce, Travel, Automotive, SaaS, Health and Beauty, Finance, B2B services
• Methodology: Regional SEO with detailed technical and content audits at the start
• Case Results: 485% uplift organic traffic growth in one year for a travel brand, 300% revenue growth in six months for a UK Ecommerce company
• Pricing: Projects start from $1,000/month for single-market campaigns
• Special About: Work in multiple languages (English, Polish, Spanish, Italian), in-house tools (CerberAI, DAP)

3. Victorious

Victorious is one of the global SEO companies in San Francisco that has been operating since 2013. They work with startups as well as big companies, and some of their well-known clients are SoFi, AngelList, and Salesforce. While most of the projects are enterprise-level, they also run international SEO campaigns and help businesses adjust content and technical setups for different markets.

• Head Office: San Francisco, California, USA
• Years of Experience: 12+
• Notable Clients: Salesforce, SoFi, AngelList, GE Digital, Delta Dental
• Clutch Rating: 4.8/5 (117 reviews)
• Team Size: 50-249
• Services: International SEO, Enterprise SEO, Technical SEO, Content Strategy, Link Building, Local SEO, SEO Audits
• Industries: SaaS, Enterprise, Finance, Healthcare, Travel, Private Equity, Insurance, Ecommerce
• Methodology: Data-led SEO campaigns
• Case Results: 252% increase in clicks for a software company, 139% rise in conversions for an enterprise insurance brand
• Pricing: Projects start at $10,000
• Special About: All the work managed in-house, enterprise-level experience, regular reporting, and over 183 industry awards

4. First Page Sage

First Page Sage is a California-based SEO agency that uses a thought leadership approach in its strategies. Their model combines keyword research, content planning, and conversion tactics to build long-term systems aimed at lead generation. A big part of their work is the Hub and Spoke framework — an architecture where core “hub” pages target high-value keywords and are backed up by related content “spokes.”

• Head Office: Berkeley, California, USA
• Years of Experience: 13+
• Notable Clients: Salesforce, Logitech, US Bank, Epicor
• Team Size: 50-249
• Services: B2B SEO, SEO Consulting, SEO Strategy, Generative AI Optimization, Lead Generation, Thought Leadership
• Industries: SaaS, Fintech, Healthcare, Manufacturing, Technology, B2B Services
• Methodology: Thought leadership strategies using Hub and Spoke architecture
• Case Results: 934% increase in keyword rankings for a software company, 230 new leads for a B2B brand.
• Pricing: Projects start at $10,000
• Special About: Enterprise SEO expertise, campaigns built for long sales cycles, trusted by leading SaaS and fintech brands

5. Titan Growth

Titan Growth is a full-service digital marketing agency founded in 2004 and often listed among the top SEO companies in the world. They combine in-house technology with hands-on SEO work and built TitanBOT®, a patented crawler that mirrors how search engines explore a site. The tool helps them spot issues with structure or indexing early, and the insights feed into their work across SEO, PPC, content, design, and link acquisition.

• Head Office: San Diego, California, USA
• Years of Experience: 21+
• Notable Clients: Lindblad Expeditions, Sitecore, Mizuno, Blackbaud
• Clutch Rating: 5.0/5 (34+ reviews)
• Team Size: 50–249 employees
• Services: SEO Services, Paid Search, Content Marketing and Digital PR, Link Acquisition, Social Media Marketing, Web Design, Email Prospecting, SEO Strategies
• Industries: Ecommerce, SaaS, Travel, Retail, Enterprise Software
• Methodology: Data-informed strategies developed with support from in-house tools.
• Case Results: 75% increase in organic traffic for a travel company, 107.18% growth in revenue for a jewelry business
• Pricing: Projects start at $1,000
• Special About: Proprietary TitanBOT® crawler that simulates search engines, a team trained in Google Analytics and advertising, and regular client reporting

6. Boostability

Boostability launched in 2009 and positions itself as an SEO partner for small businesses. Alongside their direct clients, they also built a white-label program that supports agencies and resellers who prefer to outsource SEO delivery. Their teams handle multilingual optimization, link building, and technical improvements, which gives businesses a way to expand into new markets without having to manage a dozen local vendors.

• Head Office: Lehi, Utah, USA
• Years of Experience: 16+
• Clutch Rating: 4.7/5 (52+ reviews)
• Team Size: 50-249
• Services: White-label SEO, Intent-Driven Keyword Research, SEO Content Writing, Authority Link Building, Local SEO, Business Profile Optimization
• Industries: Retail, Ecommerce, Local Services, Real Estate, Education, Healthcare
• Methodology: SEO campaigns via their LaunchPad platform that tracks keywords and performance
• Case Results: +173% organic traffic for an Ecommerce site, 200% traffic growth for a real estate site
• Pricing: Projects start at $1,000
• Special About: Native speaker content for localization, white-label model for agencies, and live dashboards that give clients a view of progress

7. Polaris

Polaris is a London-based SEO company with worldwide presence that has been working with big brands for almost two decades. Their international SEO strategy is set up as a full 360° solution — from technical SEO and onsite optimization to content campaigns, PR, and even large-scale site migrations. For global campaigns, they build country teams from a network of 125+ experts across 17 countries, including native specialists who understand local audiences.

• Head Office: London, United Kingdom
• Years of Experience: 16+
• Notable Clients: Mars, Dune London, Thomson Reuters, Sodexo, Reed
• Clutch Rating: 5.0/5
• Team Size: 10–49 employees
• Services: International SEO, Technical SEO, Onsite Optimisation, Content Marketing, Digital PR, Site Migrations
• Industries: Retail, SaaS, Ecommerce, Travel, Healthcare, Finance
• Methodology:  Data-led approach with a full 360° SEO solution
• Cases: 240% growth in leads for a global training platform, 400% uplift in MQLs for a hospitality company
• Pricing: Projects start at $5,000
• Special About: More than 350 site migrations completed, a network of 125+ experts across 17 countries

8. Big Leap

Big Leap is one of the most experienced digital marketing agencies on our list that serves enterprise brands, SaaS platforms, Ecommerce companies, and multi-location businesses. They describe their approach as brand-led performance marketing, where SEO, content, digital PR, paid campaigns, CRO, and AI SEO work side by side to grow visibility and revenue.

• Head Office: Lehi, Utah, USA
• Years of Experience: 17+
• Team Size: 50-249
• Clutch Rating: 4.8/5 (91+ reviews)
• Notable Clients: Avis, Workfront, Purple, Pluralsight, Venafi, Budget, Alphagraphics
• Services: SEO (technical, local, enterprise), AI SEO, Content Marketing, Digital PR, Link Building, Paid Advertising, Conversion Optimization, RevOps, Site Migrations
• Industries: Enterprise, SaaS, Ecommerce, B2B, Franchises, Multi-Location Businesses
• Methodology: SEO paired with in-house content, digital PR, and CRO to support growth on multiple channels
• Case Results: 99.8% uplift in orders for an Ecommerce site, 181% increase in demo leads for a SaaS company
• Pricing: Projects start at $1,000
• Special About: Brand-led performance marketing approach, focus on long-term partnerships, client retention rate above 95%

9. Skale

Skale is a professional SEO firm that works in multiple languages — English, Spanish, German — with a team of native-speaking SEOs who know how to adapt pages to each region. They mostly serve B2B companies and offer them strategies that include competitor research to see how each product compares in a given market, along with technical work like hreflang tags, domain structures, and site performance.

• Head Office: London, United Kingdom
• Years of Experience: 6+
• Clutch Rating: 4.9/5 (16+ reviews)
• Team Size: 10–49 employees
• Services: International SEO, SaaS SEO, Content Production, Link Building, Outreach, Website Migrations, Generative Engine Optimization
• Industries: SaaS, Technology, B2B companies
• Methodology: Revenue-driven SEO that’s built for qualified leads and signups
• Cases: 1370% increase in non-branded signups for SaaS company, 86% revenue growth for resume-building platform
• Pricing: Projects start from $4,000 per month
• Special About: Custom international SEO strategies, multilingual campaigns, emphasis on revenue-based outcomes

10. MiroMind

MiroMind is a leading SEO company based in Warsaw that has been in international SEO for more than 15 years. The team has experience across 40+ markets and, in addition to Google, optimizes for Bing, Baidu, and Yandex. As for the client portfolio, the agency has served companies in tech, healthcare, and wider business services, and adapts each strategy to match regional search intent and business goals.

• Head Office: Warsaw, Poland
• Years of Experience: 15+
• Clutch Rating: 5.0/5 (17+ reviews)
• Team size: 10-49
• Notable Clients: Microsoft, Vend, The Golf Society, Tricension, ActiveLogic
• Services: International SEO, On-Site Optimization, Off-Site Optimization, SEO Competitor Research, Enterprise and Multi-Location SEO, B2B SEO
• Industries: Tech, Healthcare, Business Services, Ecommerce, SaaS, Law, Eccomerce
• Methodology: Strategies designed around search-demand intelligence, TAM sizing, and click-share forecasting
• Cases: 600% increase in organic traffic for a B2B technology company, doubled website traffic for a SaaS business
• Pricing: Projects start at $1,000
• Special About: Campaigns across 40+ markets, multilingual SEO specialists, and expertise with multiple search engines

11. Ignite Visibility

Ignite Visibility is a California agency that offers international SEO alongside a diverse set of digital marketing services. On global projects, the team analyzes local keyword trends, localizes content to cultural and linguistic nuances, and also runs region-specific digital PR campaigns. For this detailed approach, they’ve received multiple industry awards and more than 160 positive reviews on Clutch.

• Head Office: San Diego, California, USA
• Years of Experience: 13+
• Clutch Rating: 4.8/5 (167+ reviews)
• Team Size: 250–999
• Notable Clients: Batteries Plus, Driven Brands, Experian, Inspire Brands, Jazzercise, Starpoint Brands, Wawanesa Insurance
• Services: SEO, Local SEO, Paid Media, Social Media Management, Content Marketing, Conversion Rate Optimization, Digital PR, Web Development, Reporting and Analytics
• Industries: Multi-Location and Franchise Brands, Healthcare, Finance, Home Services, Ecommerce, Insurance
• Methodology: Data-informed campaigns built around business needs and audience insights
• Cases: 25% increase in traffic for a franchise fitness brand, 1,848% growth in organic traffic for an electrical service provider
• Pricing: Projects start from $10,000+
• Special About: Transparent reporting, broad multilingual capabilities (9 languages available), Google Premier Partner status (top 1%)

12. Single Grain

Single Grain is one of the best SEO companies in the world, known for its work with global names like Amazon, Nextiva, and Intuit. They specialize in custom SEO solutions as well as programmatic SEO and AI-powered CRO to help businesses achieve long-term gains and increase ROI in foreign markets. Multiple case studies and impressive results show that Single Grain is an agency that goes the extra mile for its clients.

• Head Office: Los Angeles, California, USA
• Years of Experience: 16+
• Clutch Rating: 4.8/5 (12+ reviews)
• Team Size: 10–49
• Notable Clients: Amazon, Uber, CrunchBase, Airbnb, Nextiva, Fujitsu
• Services: SEO, Programmatic SEO, Paid Advertising, CRO Services, Reddit Marketing, Content Marketing, Creative Strategy, TikTok Growth Services, YouTube Consulting
• Industries: SaaS, Ecommerce, Technology, B2B, Enterprise, Consumer Brands
• Methodology: Revenue-focused strategies and AI-powered optimization
• Cases: 67% increase in organic traffic for a building materials supplier, 325% lift in click-through rate for an Ecommerce brand
• Pricing: Projects start from $10,000+
• Special About: Proprietary Search Engine Revenue methodology, full funnel content strategies

13. WebFX

WebFX is one of the biggest digital marketing agencies in the U.S. and is recognized as one of the best SEO firms in the world. They’ve been growing businesses through SEO for 28 years and partnered with companies in more than 200 industries.

The agency develops campaigns that follow best practices across technical SEO, content translation, language tags, and domain structures, so clients reach the intended audience in multiple regions. They also use their own platform, RevenueCloudFX, to connect SEO, ads, and content directly to business results.

• Head Office: Harrisburg, Pennsylvania, USA
• Years of Experience: 28+
• Clutch Rating: 4.9/5 (437+ reviews)
• Team Size: 500–999
• Notable Clients: Verizon, Fujifilm, Wrangler, Cleveland Brothers, Stanley Black & Decker
• Services: SEO Services, Enterprise SEO, Local SEO, PPC Management, Social Media Advertising, Digital Marketing, Website Copywriting, CRO, Web Design and Development, SEO Reporting and Forecasting
• Industries: SaaS, Ecommerce, Manufacturing, Healthcare, Finance, Education, B2B Services
• Methodology: Strategies shaped around extensive research and data from proprietary tools
• Cases: 236% lift in organic sessions for a manufacturing company, 95% increase in revenue for an e-commerce brand
• Pricing: Projects start from $1,000/month
• Special About: Multiple U.S. Search Awards, in-house platform (MarketingCloudFX), wide suite of SEO and digital marketing services (website design, conversion optimization, and full-site SEO improvements)

How to Find the Right International SEO Agency for Your Business

Now that we’ve reviewed our list of the best SEO agencies in the world, here are some factors to consider when deciding on whom to partner with:

• Technical expertise: Check if the agency handles hreflang setups, domain structures across regions, and language tags. These are the basics that keep the right version of your site visible in each market.
• Native multilingual support: Look for companies that work with native speakers for SEO content localization and can adapt keywords and cultural context so the pages feel natural and match the search intent of the target audience.
• Regulatory knowledge: Ask potential service providers about their experience with regional laws. For example, Europe has strict rules on privacy and advertising, and in Asia, some platforms run under different regulations. Agencies familiar with these details prevent issues later.
• Local link building: Strong international campaigns depend on links from inside the target country, so find out if the company has access to publishers, blogs, and media outlets there.
• Market experience: As you could see from our list, some agencies work across many regions, while others specialize in a few. Match their background to the countries you’re entering so you benefit from what they’ve already learned there.
• Proven results: Go through their case studies and look for numbers — growth in traffic, rankings for local keywords, or conversions from international markets — and also check the tactics behind them to see how they achieved those outcomes.

In addition, here are a few questions you can ask a potential agency:

• Which languages do you work with, and do you collaborate with native speakers?
• Have you run campaigns in my target countries, and can you show examples of your work?
• How do you structure international sites (ccTLD, subdomain, or subfolder), and why?
• What’s your workflow for local keyword research and content creation?

Expand Globally with International SEO

At our SEO company, we help businesses grow in new countries with data-driven strategies that are customized to each market. With us, you can:

• Get more traffic from multiple countries
• Improve search rankings in other languages
• Generate more leads and sales

Request a Free Quote

Drive Global Growth with the Right SEO Agency

If you’ve made it this far, chances are you’re seriously considering an international SEO strategy for your business. And we hope that our list of top SEO agencies in the world will help you choose a partner that matches your goals and budget.

At SeoProfy, we help businesses across SaaS, Ecommerce, travel, finance, and other industries reach international customers and grow revenue with our expert SEO services.

One reason why you should work with us? We combine technical and multilingual content expertise with proprietary tools and regular reporting, so you always see how our strategies translate into results. What’s even more important, we offer transparent and fair pricing, and you only pay for the services you actually need.

If you’re ready to move forward, the next step is simple. Book a free call with us, and we’ll talk about your business and potential strategies to help you grow internationally.

Author

Khrystyna Dzhumaryk

Khrystyna Dzhumaryk is a content writer at SeoProfy with four years of experience in SEO and content strategy. At the company’s main blog, she writes in-depth articles and guides to help businesses improve their online visibility through proven tactics. Her work brings together hands-on SEO experience with ongoing research into algorithm updates, search trends, and the growing impact of AI on content and optimization.