Explore the Best SEO Companies & Services
With this list of the best search engine optimization (SEO) services, your business can find the perfect partner for growing your rankings, traffic, and revenue from search. Discover the best SEO companies in the world now!
The world’s top SEO companies
When it comes to SEO agencies, you have choices. Below, you’ll find a summary of the top SEO companies in the world, from the United States to India to the United Kingdom. Learn more about each SEO firm below — and then keep reading to learn why they’re one of the top SEO agencies.
Rankings as of May 2023
WebFX
Ranking: Best SEO company in the U.S.
SEO services: National, local, ecommerce, and enterprise SEO, plus SEO audits
Location: Pennsylvania, USA
Employees: 250-999
SEO Checker score: 88
Reviews: https://clutch.co/profile/webfx
The SEO Works
Ranking: Best SEO company in the U.K.
SEO services: National and local SEO
Location: Sheffield, United Kingdom
Employees: 10-49
SEO Checker score: 76
Reviews: https://clutch.co/profile/seo-works
Tokyo Marketing
Ranking: Best SEO company in Japan
SEO services: International SEO
Location: Chiba, Japan
Employees: 2-9
SEO Checker score: 61
Simpliza
Ranking: Best SEO company in Italy
SEO services: SEO consulting, plus SEO audits
Location: Rome, Italy
Employees: 2-9
SEO Checker score: 65
Reviews: https://clutch.co/profile/simpliza
Angora Media
Ranking: Best SEO company in Israel
SEO services: International SEO, SEO consulting, technical SEO audits, penalty recovery, and more
Location: Ramat Gan, Israel
Employees: 10-49
SEO Checker score: 77
SEOtonic
Ranking: Best SEO company in India
SEO services: National and local SEO
Location: Bhopal, India
Employees: 10-49
SEO Checker score: 76
High Voltage SEO
Ranking: Best SEO company in Germany
SEO services: National SEO, international SEO, SEO consulting
Location: Berlin, Germany
Employees: 10-49
SEO Checker score: 68
seoplus+
Ranking: Best SEO company in Canada
SEO services: National SEO
Location: Ottawa, Canada
Employees: 10-49
SEO Checker score: 72
Reviews: https://clutch.co/profile/seoplus
SIXGUN
Ranking: Best SEO company in Australia
SEO services: International and local SEO, plus Google penalty assistance
Location: Melbourne, Australia
Employees: 10-49
SEO Checker score: 79
Reviews: https://clutch.co/profile/sixgun
[Summary] Best SEO companies and services
Country | SEO Agency | Location | Employees | SEO Checker Score* |
---|---|---|---|---|
United States | Pennsylvania, USA | 250-999 | 88 | |
United Kingdom | Sheffield, U.K. | 10-49 | 76 | |
Japan | Chiba, Japan | 2-9 | 61 | |
Italy | Rome, Italy | 2-9 | 65 | |
Israel | Gan, Israel | 10-49 | 77 | |
India | Bhopal, India | 10-49 | 76 | |
Germany | Berlin, Germany | 10-49 | 68 | |
Canada | Ottawa, Canada | 10-49 | 72 | |
Australia | Melbourne, Australia | 10-49 | 79 |
*SEO Checker is a free SEO tool that analyzes a website’s SEO and assigns a score of 0-100, with 100 being the highest (or best) score and 0 being the lowest (or worse).
Best SEO company in the U.S.: WebFX
SEO services: National, local, ecommerce, and enterprise SEO, plus SEO audits
Location: Pennsylvania, USA
Employees: 250-999
SEO Checker score: 88
Reviews: https://clutch.co/profile/webfx
“WebFX — aren’t you WebFX?”
While it seems self-serving to include our SEO agency on a list of the best SEO firms, the data (from our client reviews to our client results) shows that WebFX is the best SEO company in the U.S., especially for small-to-midsized businesses (SMBs).
Ready to learn more about the data behind our placement? Check out the reasons behind our choice:
Access specialized SEO services
With WebFX, your business can access the SEO services you need. Whether you’re looking for national, ecommerce, or local SEO, you can get the expertise you need with our 500+ team of SEO specialists, developers, designers, and copywriters.
Even better, we publish our SEO plans and pricing online, which is a rarity among SEO agencies.
Get 360° reporting in real time
Besides providing you with a dedicated account manager, WebFX also offers real-time return on investment (ROI) reporting through MarketingCloudFX, our exclusive tech platform. See how many leads and sales your SEO strategy drives instantly.
Build an SEO strategy with data and expertise
WebFX stands apart from other top SEO agencies because of its unique blend of technology and expertise. With IBM Watson and Google AI — two leading artificial intelligence and machine learning solutions — you build an SEO strategy driven by data and your dedicated account manager’s expertise.
Your strategy, for example, can access billions of data points to determine what keywords and content will drive the best ROI for your business. That’s insight your competitor can’t access, which gives you an immense advantage in the world of search.
Impact bottom-line metrics
Search engine optimization isn’t about just driving traffic anymore. Your company wants to see real, measurable impact from ranking in search results, and WebFX makes this possible. We build our strategies around what will drive your business qualified leads and valuable sales.
It shows too. In the past five years, WebFX’s clients have earned more than $3 billion in revenue through the company’s efforts. Even better, clients’ businesses have attracted more than 7.8 million qualified leads.
Best SEO company in the United Kingdom: The SEO Works
SEO services: National and local SEO
Location: Sheffield, United Kingdom
Employees: 10-49
SEO Checker score: 76
Reviews: https://clutch.co/profile/seo-works
What makes The SEO Works one of the best SEO agencies in the United Kingdom? A few reasons:
Get a partner with diverse industry experience
With experience in multiple industries, from automotive to education, The SEO Works brings a vast amount of industry experience to your SEO campaign. Through their background in different industries, your company can create a savvy SEO strategy.
Optimize for quality, not quantity
Like many of the top SEO marketing companies on our list, The SEO Works understands the value of quality over quantity. That’s why the team focuses on attracting qualified traffic to your website versus any traffic. With more qualified traffic visiting your site, you can drive more leads and revenue.
Track online and offline conversions for local SEO
Companies looking for a local SEO solution will want to check out Local SEO Ballistics from The SEO Works. This program makes measuring your local SEO ROI easier because it tracks phone calls and inquiries generated from your presence in local search results.
Best SEO company in Japan: Tokyo Marketing
SEO services: International SEO
Location: Chiba, Japan
Employees: 2-9
SEO Checker score: 61
Reviews: https://clutch.co/profile/kochi
While a younger SEO company, Tokyo Marketing is one of the best SEO companies in Japan for a few reasons:
Access international SEO professionals
For companies looking to break into the Japanese marketplace, Tokyo Marketing is an excellent solution. The company features fully bilingual SEO professionals, which makes sharing your goals, measuring your progress, and providing your input fast and easy.
Get a complete international SEO solution
Tokyo Marketing also provides your company with a complete solution to international SEO. You don’t have to worry about implementing your SEO strategy, for example. Your Tokyo Marketing representative will take care of these tasks for you.
Use supporting strategies to increase your SEO ROI
With Tokyo Marketing, your business can also access strategies to support your international SEO efforts. If you’re looking to improve your analytics tracking with Google Tag Manager (GTM) or increase your revenue with conversion rate optimization (CRO), for example, Tokyo Marketing can help.
Best SEO company in Italy: Simpliza
SEO services: SEO consulting, plus SEO audits
Location: Rome, Italy
Employees: 2-9
SEO Checker score: 65
Reviews: https://clutch.co/profile/simpliza
In Italy, Simpliza is one of the top SEO marketing companies for a few reasons, including:
Get an agency that specializes in startups and small businesses
Looking to grow your startup or small business through search? Simpliza can help. The SEO agency specializes in SEO for startups and small businesses, which makes them an excellent candidate for companies like yours.
Work on a consulting vs. ongoing basis
Businesses looking for a flexible SEO partnership will also like Simpliza. The SEO company offers SEO consulting and SEO audit services, which your company can take advantage of when looking for a second opinion or additional SEO insight.
Optimize for visibility on Google, Bing, Yandex, and Baidu
While Google is one of the biggest search engines, companies with a global presence will want to think about other search engines, like Yandex and Baidu. With Simpliza, you can optimize your site for these global search engines to capture more online revenue.
Best SEO company in Israel: Angora Media
SEO services: International SEO, SEO consulting, technical SEO audits, penalty recovery, and more
Location: Ramat Gan, Israel
Employees: 10-49
SEO Checker score: 77
Reviews: https://clutch.co/profile/angora-media
Looking for the best SEO company in Israel? Check out what you can get with Angora Media:
Outsource routine SEO tasks
Besides accessing international SEO and consulting SEO services, your business can also use Angora Media to knock out routine SEO tasks. Examples include keyword research, competitor intelligence, and even auditing your technical SEO.
Improve the metrics that impact your business’s profits
Angora Media doesn’t just improve your keyword rankings and traffic. The company also looks at your bottom-line metrics, like your leads and sales, when analyzing its performance. If you’re searching for an SEO company in Israel that prioritizes ROI, check out Angora Media.
Get access to supporting services, like social media and paid advertising
With Angora Media as your SEO agency, you can also access supporting digital marketing services. For example, you can use the company’s social media and pay-per-click (PPC) advertising plans to grow (and monetize) your online presence even more.
Best SEO company in India: SEOtonic
SEO services: National and local SEO
Location: Bhopal, India
Employees: 10-49
SEO Checker score: 76
Reviews: https://clutch.co/profile/seotonic-web-solutions
When it comes to the best SEO companies in India, SEOtonic tops the list for a few reasons, including:
Get help with SEO tactics, like blogging and link building
If you’re looking for assistance with SEO tactics like blogging SEO or link building, SEOtonic offers specialized services for these tasks. With these services, you can optimize your SEO strategy’s challenging (or often forgotten) aspects.
Receive an entire team to manage your SEO strategy
SEOtonic also provides your business with a whole team to manage, lead, and implement your SEO plan. Your team includes an account manager, SEO expert, link building specialist, and more so you can completely outsource your SEO.
Achieve keyword rankings and traffic goals
Companies with a focus on keyword rankings and traffic will find SEOtonic makes the perfect partner. The SEO agency’s case studies focus heavily on keyword ranking and traffic gains, demonstrating their expertise to achieve these kinds of goals.
Best SEO company in Germany: High Voltage SEO
SEO services: National SEO, international SEO, SEO consulting
Location: Berlin, Germany
Employees: 10-49
SEO Checker score: 68
Reviews: https://clutch.co/profile/high-voltage-seo/
Another one of the best SEO companies is High Voltage SEO. Here’s why:
A data-driven approach
High Voltage prides itself on its data-driven approach to SEO. They use a scientific-based process and regular testing to develop their SEO strategies and keep up with the ever-changing SEO industry.
Expertise in the German-speaking market
High Voltage’s Berlin team is made up of both native German and native English speakers. They have experience in the German-speaking market, enabling them to help companies break in to the region. High Voltage also has offices in the U.S. and Australia, so they can offer an international approach as well.
Multiple plan options
If you work with High Voltage, you can opt for just SEO consulting services or a full SEO campaign. The company offers a full range of SEO services, including on-page optimization, link building, technical SEO, and content creation.
Best SEO company in Canada: seoplus+
SEO services: National SEO
Location: Ottawa, Canada
Employees: 10-49
SEO Checker score: 72
Reviews: https://clutch.co/profile/seoplus
SEOplus+ is one of the best SEO companies in Canada for a few reasons, including:
Get an SEO plan that matches your budget
If you’re looking for an SEO agency that will work with your budget, seoplus+ can help. The company will build an SEO plan based on your budget, which offers immense flexibility to startups and small businesses.
Receive monthly performance reports
Like many of the best SEO companies on this list, seoplus+ provides your business with regular reports. These reports offer your business instant insight into your strategy’s performance, which can guide your strategy from month to month.
Access digital marketing specialists, from SEOs to web designers
SEOplus+ also features a full-service digital marketing team. This setup allows your company to implement your SEO strategy fast. You don’t have to wait for an in-house developer to find the time, for example. Instead, you can rely on seoplus+ to get the job done.
Best SEO company in Australia: SIXGUN
SEO services: International and local SEO, plus Google penalty assistance
Location: Melbourne, Australia
Employees: 10-49
SEO Checker score: 79
Reviews: https://clutch.co/profile/sixgun
Businesses looking to grow in Australia should check out SIXGUN, a top SEO company in the country:
Recover from Google penalties
Whether you’re looking to recover from a Google penalty caused by another SEO agency or in-house actions, SIXGUN offers specialized services for recovering from one. SIXGUN will work to remove the penalty and provide a roadmap for avoiding future ones.
Receive SEO training for in-house team members
If you’re looking to build your department’s SEO knowledge, you can also hire SIXGUN to provide a 60-minute lunch and learn. This program will include reviewing your website, providing recommendations, and answering your teammate’s questions.
Capture more of the Australian marketplace
While SIXGUN provides international SEO services, the company focuses on improving your presence in local search results. If you’re an Australian business — or business looking to break into the Australian marketplace — SIXGUN deserves a spot on your list of contenders.
Related Resources
- In-House Marketing vs. Agency Marketing
- Integrated Marketing Agencies: Maximize Your Marketing ROI
- Business Marketing Packages & Prices for SMBs
- Why Hire a Marketing Agency? (+6 Tips for Hiring One)
- 8 Questions to Ask When You Hire a Digital Marketing Agency
- SEO Questionnaire
- SEO Services List
- What’s a Good Budget for SEO?
- The Cost of Marketing — A Complex Marketing Budget Breakdown
Marketing Tips for Niche Industries
- 5 Effective Tips for SEO for Architects
- SEO for Telehealth: Capture Revenue With Telehealth SEO Services
- 4 Tips for Choosing the Best SEO Company for Lawyers
- Why SEO Is Important for Medical Equipment Companies
- SEO for Solar Companies: Your Go-To Guide
- SEO for B2G Companies: 4 Tips for Making a B2G SEO Strategy
- 5 SEO Tips for Tree Care Companies
- SEO for Therapists: Mental Health Practice SEO
- SEO for OBGYN: Rank Higher in SERPs with OB SEO
Ready to Grow? Get your FREE Quote Today!
“We measure our success by how much we WOW our clients.”

Bill Craig
WebFX President
FAQs about the best SEO companies
Looking to learn more about finding, researching, and hiring one of the best SEO companies in the world? Check out our FAQ, which covers some of the most common questions businesses have about finding and hiring an SEO agency!
How did you build this list of the top SEO companies?
Great question! This list of the top SEO companies looked at several factors when vetting agencies, like:
- Deliverables: The best SEO firms provide clients everything they need to launch and manage a successful SEO strategy, like keyword research and regular reporting, with their SEO services. So, our list focused on agencies that offered a turnkey SEO solution.
- Success factors: Another distinctive factor between SEO companies is how they measure client success. Do they look only at rankings, or do they look at real-world business metrics, like leads and revenue? The best SEO agencies look at both, with an emphasis on real-world impact.
- Client results: You can’t become one of the top SEO agencies without driving results for your clients. Through case studies, the SEO companies on our list demonstrated their expertise in SEO and client service.
- Client satisfaction: When it comes to the best SEO firms, it doesn’t matter how good they are if they can’t provide exceptional customer service. That’s why our list also factored in client satisfaction. Did online reviews show businesses loved working with this agency?
What is an SEO company?
SEO companies provide search engine optimization (SEO) services to help their clients rank well in relevant search results on search engines such as Google. The best SEO companies ensure that the SEO strategies they use align with their clients’ needs and goals and drive meaningful results for their businesses, such as leads, sales, and revenue.
What services do SEO agencies offer?
SEO companies offer a wide range of services. SEO services often include keyword and competitor research, developing an SEO strategy, implementing that strategy, and reporting results.
Types of SEO services include local SEO, ecommerce SEO, and SEO audits. Some SEO agencies also offer other digital marketing services, such as content marketing, pay-per-click (PPC) advertising, and social media marketing.
How much do SEO services from these agencies cost?
Typically, search engine optimization services cost $700 to $2000 per month.
Unfortunately, only a few of the agencies on our list of the best SEO companies publish their prices online — WebFX is one of them. That means, if you want to see an agency’s pricing, you’ll need to contact them, which isn’t convenient in the early stages of hiring an SEO firm.
As a reference, if you’re partnering with one of the best SEO companies in the world, expect to see prices higher than the industry average. This price difference is often due to the agency’s experience. Keep in mind, though, factors related to your business, like your SEO needs, will shape your SEO costs.
Are the best SEO marketing companies worth the money?
The answer to this question is almost always yes.
Price is a crucial factor when outsourcing your SEO. Many companies, however, use price to make (versus shape) their hiring decisions, which results in hiring a cheap SEO agency. These agencies typically advertise SEO services at less than $500 per month.
Working with a cheap SEO company impacts your:
- Client experience
- Return on investment
- SEO results
- And more
Not to mention, these agencies can also damage your reputation with Google — the world’s biggest search engine. If Google decides your website isn’t trustworthy because your agency practiced black-hat SEO, your business will continue to struggle to rank in search results, long after you’ve let the agency go.
This all-too-common scenario forces your company to spend additional dollars on undoing the cheap SEO firm’s damage. In the end, you spend more money than if you’d partnered with a reputable SEO agency that had higher (but more realistic) prices.
That’s why, yes, the top SEO agencies are often worth their price tag.
They provide you with the peace of mind that you’re working with a company that will grow your online visibility and help your business increase its revenue. So, remember to use multiple factors to make your hiring choice versus making price the deciding factor.
I’m ready to hire an SEO agency — any tips?
If you’re ready to hire an SEO agency, then you’ll find these seven tips helpful:
- Decide what metrics, like traffic, leads, and sales, will measure your SEO success
- Determine whether you want to work with an SEO agency in your area, country, or time zone
- Set a monthly SEO budget — after researching how much SEO costs
- Research what your SEO services should include, like off-page and on-page SEO
- Review the agency’s case studies to see what metrics they value
- Read the agency’s reviews on multiple platforms, from Facebook to Clutch
- Compile questions to ask each agency, like how and when they report results
Related Resources
- In-House Marketing vs. Agency Marketing
- Integrated Marketing Agencies: Maximize Your Marketing ROI
- Business Marketing Packages & Prices for SMBs
- Why Hire a Marketing Agency? (+6 Tips for Hiring One)
- 8 Questions to Ask When You Hire a Digital Marketing Agency
- SEO Questionnaire
- SEO Services List
- What’s a Good Budget for SEO?
- The Cost of Marketing — A Complex Marketing Budget Breakdown
Marketing Tips for Niche Industries
- 5 Effective Tips for SEO for Architects
- SEO for Telehealth: Capture Revenue With Telehealth SEO Services
- 4 Tips for Choosing the Best SEO Company for Lawyers
- Why SEO Is Important for Medical Equipment Companies
- SEO for Solar Companies: Your Go-To Guide
- SEO for B2G Companies: 4 Tips for Making a B2G SEO Strategy
- 5 SEO Tips for Tree Care Companies
- SEO for Therapists: Mental Health Practice SEO
- SEO for OBGYN: Rank Higher in SERPs with OB SEO
See what it’s like to work with a top SEO company
You’ve learned about the best SEO companies in the world, plus how to find the best SEO agency for your business. If you’re ready to get started with your search, think about WebFX, one of the best SEO firms in the U.S. for small-to-midsized businesses (SMBs).
Learn how you can grow your company with SEO by browsing our SEO plans now. You can also contact us online (or reach us by phone at 888-601-5359) to speak with a strategist one-on-one about your company’s SEO needs!
