LAST UPDATED JAN 20, 2021

Best SEO Firms in United States - 2021 Rankings

Sort by :
  • Verified

    1 Lounge Lizard

    New York - United States

    Lounge Lizard has 25 years of experience in website design and development, digital marketing, social media, and mobile app development. The agency and its team of more than 50 have been servicing cli....

    • Founded : 1998
    • Revenue : N/A
    • Firm Size : 50-75
    • Numbers of Client : 50-100
  • Verified

    2 Actuate Media

    Seattle - United States

    Actuate Media was founded to help businesses navigate the world of digital advertising. Our vision is simple: we facilitate data-driven business-to-consumer relationships. How do we do this? Th....

    • Founded : 2016
    • Revenue : $1.5 - $2 million
    • Firm Size : 5-10
    • Numbers of Client : 100+
  • Verified

    3 Ignite Visibility

    San Diego - United States

    Ignite Visibility is one of the industries top online marketing companies. Named number 1 SEO company in the USA, UK and Canada, one of the fastest growing companies in San Diego and number 698 on the....

    • Founded : 2012
    • Revenue : $3 million - $5 million
    • Firm Size : 50+
    • Numbers of Client : 170+
  • Verified

    4 Dallas SEO Dogs

    Dallas - United States

    Dallas SEO Dogs is an award-winning, full-scale digital marketing team. We are experts in SEO, Google/Yahoo/Bing Ads, display and retargeting ads, social media advertising and content marketing. Our t....

    • Founded : 2006
    • Revenue : $3 million - $5 million
    • Firm Size : 30+
    • Numbers of Client : 100+
  • Verified

    5 WebServ

    Irvine - United States

    WebServ one of the fastest-growing digital marketing agencies. We develop personalized digital marketing strategies that help our clients stand out from the crowd. Don’t settle for a one-size-....

    • Founded : 2017
    • Revenue : 3-5MM
    • Firm Size : 25
    • Numbers of Client : 100+
  • Verified

    6 Flying V Group

    Irvine - United States

    At Flying V Group, our main goal is to build a digital presence that drives business growth through online channels. Our approach to digital marketing is founded on an understanding of how people take....

    • Founded : 2016
    • Revenue : Above $5 million
    • Firm Size : 15+
    • Numbers of Client : 50+
  • Verified

    7 OuterBox

    Copley - United States

    At OuterBox we're focused on designing, developing and marketing websites that are performance minded. Since 2004 we have worked with hundreds of clients across all industries. Our talented in-house t....

    • Founded : 2004
    • Revenue : $5 million - $10 million
    • Firm Size : 50-249
    • Numbers of Client : 200+
  • Verified

    8 Volume Nine

    Denver - United States

    With more than a decade of digital marketing agency experience, Volume Nine believes success is measured in long-term relationships and ongoing results, instead of agency dollars and high sale contrac....

    • Founded : 2006
    • Revenue : $1 million - $3 million
    • Firm Size : 10-49
    • Numbers of Client : 100+
  • Verified

    9 Website Depot Inc.

    Los Angeles - United States

    Website Depot is an Award Winning, Google Partner web agency based in one of the nation’s hippest neighborhoods – Silver Lake, Los Angeles. We have access to what has become the largest creativ....

    • Founded : 2010
    • Revenue : $1 million - $3 million
    • Firm Size : 50
    • Numbers of Client : 100+
  • Verified

    We have focused on providing the best results to all clients, boutique class customer service and affordable pricing for our full SEO services in Toronto, ON. The experts at Local SEO Search provide d....

    • Founded : 2013
    • Revenue : 50k
    • Firm Size : 30
    • Numbers of Client : 60
  • Verified

    11 Double Up Digital

    Atlanta - United States

    A FULL SERVICE WEB DESIGN & DIGITAL MARKETING AGENCY. We’ve created an environment that makes us excited to come to work. Our efforts are motivated through passion, teamwork, and a demand for ex....

    • Founded : 2016
    • Revenue : N/A
    • Firm Size : 10+
    • Numbers of Client : 50+
  • Verified

    12 Nimbletoad

    Carlsbad - United States

    We are Nimbletoad. We build and optimize marketing-driven websites. Let's face it. Unless you are a marketing company, nobody decided to go into business to spend their days generating leads and fi....

    • Founded : 2008
    • Revenue : N/A
    • Firm Size : 10+
    • Numbers of Client : 50+
  • Verified

    13 405 Media Group

    Scottsdale - United States

    405 Media Group has been fine tuning marketing processes for businesses for over 30 years. We’ve seen fads come and go. We know the numbers, we study your customers and we know what works. We’ll m....

    • Founded : 2010
    • Revenue : $1 million - $3 million
    • Firm Size : 20
    • Numbers of Client : 100+
  • Verified

    ⚡️ Online marketing solutions since 2011: ⚡️ — SEO & PPC, Local SEO, SEM; — WEB Development & Design. We will perform a technical SEO audit for free. Webernetic Family....

    • Founded : 2011
    • Revenue : $100,000 - $200,000
    • Firm Size : 10-49
    • Numbers of Client : 40+
  • Verified

    15 Avenue 25

    Phoenix - United States

    We at Avenue 25 believe great ideas come from incredibly talented individuals, not an over-staffed office full of clock-punchers. We’re a boutique creative studio. That means we’re purposely ....

    • Founded : 1991
    • Revenue : N/A
    • Firm Size : N/A
    • Numbers of Client : N/A
  • Verified

    16 Brenton Way

    Los Angeles - United States

    5X Growth is our motto. We help brands rapidly sclae their digital marketing with unique marketing strategies to expand their presence, revenue, traffic. We spent the time to bring in leaders from ....

    • Founded : 2017
    • Revenue : Under $250,000
    • Firm Size : 10-49
    • Numbers of Client : 50+
  • Verified

    17 WebiMax

    Camden - United States

    With over 100 dedicated employees, WebiMax has among the largest pool of Internet marketing professionals you will find at an agency. WebiMax’s success is due, in large part, to the highly talent....

    • Founded : 2008
    • Revenue : $3 million - $5 million
    • Firm Size : 100+
    • Numbers of Client : 250+
View More
  • Top SEO Firms


    Considering the importance of Search Engine optimization, businesses are joining hands with the top SEO firms to attain the best outcome. SEMfirms unveils the top SEO companies in the list provided. Here they can easily compare the most trusted and credible companies and make their wise decision. It is a one-stop place where the top 10 SEO firms are ranked based on their client reviews, experience, credibility, technical expertise, feedback, previous performance, response and many more. Search Engine optimization companies on our list strive to be the best for their customers. They provide services at an affordable price. You can collaborate with the top agencies and grow your business by attracting potential customers.

    Our team at semfirms.com filter the top Search Engine optimization agencies by analysing how they implement particular strategies, Keywords, Conversion Rate Optimization as well as Backlink Strategy. Moreover, our team evaluate the ability of SEO service providers to comprehend the customers target audience and apply the perfect tactics. The top 10 SEO firms have been listed after careful analysis as well as evaluation of their previous and consistent work performance. So, you can collaborate with any of them to get a superb internet marketing solution. On top of that, you can also give your business a worldwide unique identity. SEMfirms will surely assist you to get organic and relevant traffic to your website.