Top 100 SEO Companies in the United States

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Top 100 SEO Companies in the United States

June 2023

Looking for a top SEO firm in the United States?

Compare top-performing SEO agencies to see which may be the best fit for your business goals. Whether you're seeking to improve your ranking in search engine results pages, boost website traffic, or show up in local search results, investing in SEO is important for business growth. 

Jump to Most Reviewed Companies

List of the Best United States SEO Firms

  • 1
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.6
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 250 - 999 employees
    • Harrisburg, PA

    WebFX is a performance-focused digital marketing agency with services designed to increase qualified leads, phone calls, and transactions for clients. Founded in 1996 and headquartered in Harrisburg, Penn., they have over 250 digital marketing, design, and development experts who serve customers through SEO, PPC, web design, and more. They also have partnerships with Google, Facebook, Bing, Salesforce, and more.

    Clients

    • Verizon
    • Auntie Anne's
    • 1&1
    • Subway

    Industries

    Notable Project

    WebFX provides ongoing digital marketing services for a campground. The team manages the client's SEO. The client has not provided set requirements for WebFX's work.

    "WebFX’s customer service makes them stand out from other providers."

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  • 2
    • $1,000+
    • 50 - 249 employees
    • San Diego, CA

    Ignite Visibility is one of the highest awarded digital marketing agency in the industry, specializing in digital marketing strategy, SEO, paid media, social media, email marketing, analytics, Amazon, and CRO. Ignite Visibility has used the same strategies they use for clients to become a four-time Inc. 5000 company (2017, 2018, 2019 and 2020). Ignite Visibility is led by leading industry expert John Lincoln, has over 110 full-time employees and offers a proprietary digital marketing forecasting system allowing clients to consistently hit quarterly goals.

    Clients

    • Tony Robbins
    • Sharp Healthcare
    • The Knot World Wide
    • National Funding

    Industries

    Notable Project

    Ignite Visibility provides branding and social media marketing services for an energy shots company. They've designed a new brand identity and managed the client's TikTok and Facebook organic and paid content.

    "The quality and attention to our brand has been second to none."

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  • 3
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.6
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 50 - 249 employees
    • Lehi, UT

    Big Leap is a digital marketing agency in Lehi, Utah. With over 13 years in the industry, Big Leap helps companies sustainably grow in organic reach and lead generation. They specialize in SEO marketing, content marketing, reputation management, social media marketing, conversion rate optimization, and marketing automation to match their clients’ needs. 

    Clients

    • Avis Budget Car Rental
    • Visionworks
    • Nu Skin
    • Empire Today

    Industries

    Notable Project

    Big Leap provides SEO management services for a child protection nonprofit undergoing a rebranding project. The team has worked on helping the group transition their website from its old version to the new one.

    "We're impressed by their level of professionalism and willingness to help out wherever asked."

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  • 4
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.5
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 50 - 249 employees
    • San Francisco, CA

    A San Francisco, CA-based SEO services company, Victorious has been around since 2012. With a team of 25 employees, they deliver huge returns for their clients. They offer help clients with on-site and local search optimization, link building and content development.  

    Clients

    • SoFi
    • Groupon
    • Yahoo
    • Spotify

    Industries

    Notable Project

    Victorious provides ongoing SEO services for an electric company. The team has added keywords and original content to the client's site and acquired backlinks; they've also taught the client about SEO.

    "Sarah and her team have met and exceeded all the needs and expectations of this project."

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  • 5
    • Scheduling

      4.8
    • Quality

      4.7
    • Cost

      4.5
    • NPS

      4.7
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 50 - 249 employees
    • Chicago, IL

    Formed in 1997, Straight North is a full-service internet marketing company specializing in SEO, PPC, website design and development, email marketing, and graphic design. With 100+ full-time, in-house employees, they help B2B and B2C companies of all sizes generate sales leads and e-commerce revenue in the lucrative but highly competitive online marketing space. They offer a collaborative business style, technical expertise, deep experience in multiple verticals, team-based campaign execution, transparent reporting, and an unwavering focus on maximizing their clients' ROI.

    Clients

    • Keyence
    • Conduent
    • Donnelly Financial Solutions
    • Clover Network

    Industries

    Notable Project

    Straight North provides ongoing SEO services for an HVAC installation company. They've developed strategies to improve the client's ranking on Google results pages; they also come up with blog ideas.

    "They do everything well."

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  • 6
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 50 - 249 employees
    • San Diego, CA

    Titan Growth is a marketing and advertising firm based in San Diego, Calif. and founded in 2004. Titan Growth's team of about 45 employees primarily offers digital strategy services, although it also offers search engine optimization and pay per click services. 

    Clients

    • Mizuno
    • Blackbaud
    • Suja/Coke
    • National Geographic

    Industries

    Notable Project

    Titan Growth provides SEO services to an EdTech firm. After a brief exploration period, they've presented recommended keywords for approval, used them to improve the client's SERP, and provided monthly reports.

    "The team is quick to respond and clear with communications."

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  • 7
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 50 - 249 employees
    • Copley, OH

    Outerbox is a custom web design firm located in Akron, Ohio and serves clients nationwide. OuterBox was established in 2004 and has since grown to a team of 48 that provides SEO, web design, and e-commerce development services to companies of various sizes and industries.

     

    Clients

    • K2awards.com
    • AtlasOil.com
    • UCFS.com
    • JetDock.com

    Industries

    Notable Project

    OuterBox helps an apparel company increase their market share and income by 10%. The team writes content for the client's web pages, blogs, titles, and meta-descriptions. They also work on acquiring backlinks.

    "I always feel well taken care of, and it feels real and genuine."

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  • 8
    • $5,000+
    • 10 - 49 employees
    • Seattle, WA

    Logic Inbound is a digital marketing company based in Seattle. The company, founded in 2016, has a team of around 15 that provides SEO, PPC, and web design services. Logic Inbound serves enterprise and smaller-sized companies in the medical, business services, and e-commerce industries.

    Clients

    • Advanced Liposuction Center
    • Washington Association of Naturopathic Physicians
    • ClickBank
    • Saorsa (medical devices)

    Industries

    Notable Project

    Logic Inbound was hired by an education software company to provide keyword recommendations and instructions to optimize their SEO; they learned about the client's industry and created a report.

    "They were on time and well prepared for each meeting and exceeded expectations on delivery."

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  • 9
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 10 - 49 employees
    • Draper, UT

    Searchbloom provides cutting-edge search engine marketing for businesses around the world. Founded in 2014 and based in Draper, Utah, their team specializes in local, national, and E-commerce SEO & PPC. They support clients by increasing their revenues and have quickly built a reputation for being an authority in SEO. 

    Clients

    • Trex Fencing
    • Divvy
    • bill.com
    • Jitterbug

    Industries

    Notable Project

    Searchbloom helps a t-shirts & apparel company improve their website content. The client's goal is to increase site visitors, provide a better UX, and grow their revenue.

    "They are experts in what they do, and their values align with ours."

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  • 10
    • $1,000+
    • 50 - 249 employees
    • Chicago, IL

    Digital Authority is a digital marketing agency. Established in 2016, the company is headquartered in Chicago, Illinois. Their services include SEO, PPC, Web Design, and Digital Marketing.

    Clients

    • Omron Healthcare
    • Dickson Data
    • Sanctuary Clothing
    • Geode Health

    Industries

    Notable Project

    Digital Authority Partners conducted a marketing audit, defined marketing strategy, and trained internal marketing resources. 

    "The professionalism and experience exhibited by Christal and the Digital Authority Partners team was excellent."

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  • 11
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • Marion, IL

    Rankings.io is a legal SEO company located in O'Fallon, Ill. It was founded in 2013 and now has a team of nearly 20 that exclusively provides SEO services to clients. 

    Clients

    • Sibley Dolman Gipe
    • The Levin Firm
    • Stewart J. Guss
    • Jacoby & Meyers

    Industries

    Notable Project

    Rankings.io provides ongoing SEO services for a full-service law firm. The goal is to get the client to the first page of Google searches within a year.

    "Alec Renner is our project manager. He is beyond attentive. He, and his whole team, are excellent at their jobs."

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  • 12
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 2 - 9 employees
    • Anaheim, CA

    Zupo is an SEO consulting agency based in Anaheim, Calif. This company was founded in 2019 and has three employees. Zupo exclusively specializes in SEO services for small and medium-sized businesses.

    Clients

    • Vincit
    • Wandr Studio
    • Sparkhouse
    • Moon Cat Cafe

    Industries

    Notable Project

    Zupo provides SEO and PR services for an employee benefits solutions company. They optimize landing pages, write content, and incorporate keywords on the client's website. They also connect with publications.

    "We were immediately impressed with their work all around."

    Visit Site
  • 13
    • $1,000+
    • 50 - 249 employees
    • Culver City, CA

    Headquartered outside Los Angeles in Culver City, CA, Coalition Technologies specializes in SEO and PPC but also offers web design, e-commerce development, and WordPress development. With additional offices in Austin, TX and Seattle, WA, Coalition Technologies has grown to a team of 100+ since its founding in 2009.

    Clients

    • PayPal
    • Natori
    • Harvard
    • Whataburger

    Industries

    Notable Project

    Coalition Technologies conducted a technical SEO audit for an online sporting goods store. They looked for weaknesses in the client's website and listed possible solutions.

    "I was impressed with how they handled my situation and the terms of service they provided."

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  • 14
    • $1,000+
    • 10 - 49 employees
    • Dallas, TX

    Thrive Internet Marketing Agency is a results-driven digital marketing agency based in Dallas. Since 2005, we have been providing digital marketing consulting and management services that include web site design and development, search engine optimization (SEO), PPC management, social media marketing, conversion rate optimization (CRO), Amazon marketing services, video production, and more. 

    Clients

    • Restoration 1
    • Driver Support
    • Tavistock Restaurant Group
    • BMS Cat

    Industries

    Notable Project

    Thrive Internet Marketing Agency handles the SEO backend tasks of a creative production agency. They aim to optimize the client's website, improve their Google search ranking and develop better brand awareness.

    "Thrive Internet Marketing Agency does a great job of keeping us informed."

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  • 15
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • Golden, CO

    Colorado SEO Pros is an SEO firm based in Golden, Colorado, with a second office in Denver. Founded in 2012, their team of around 10 employees provides SEO, PPC, and web design services.

    Clients

    • Spectrum
    • Wide Open West
    • Health Street
    • Century Communities

    Industries

    Notable Project

    Colorado SEO Pros was hired by a consulting company to handle their SEO efforts. The team has conducted analysis and research to develop a strategy that encompasses content, link-building, and technical SEO.

    "They also have an impressive team with a variety of skill sets."

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  • 16
    • $1,000+
    • 250 - 999 employees
    • Greenwood Village, CO

    SocialSEO is a digital marketing agency that specializes in SEO, PPC, and social media. With three offices in Colorado – Denver, Colorado Springs, and Boulder – and a fourth office in Phoenix, SocialSEO and its team of nearly 70 employees has been committed to helping clients rank in search engines and market their brand since its founding in 1996.

    Clients

    • Jaguar
    • Gaiam
    • Cadillac
    • Cherry Creek Shopping Center

    Industries

    Notable Project

    Intero Digital (formerly SocialSEO) provides SEO services for a luxury residential landscaping company. The client was one of the vendor's first customers.

    "The best thing about Intero Digital (formerly SocialSEO) is the professionalism and enthusiasm to do their best for us."

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  • 17
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 10 - 49 employees
    • Boca Raton, FL

    SEO Brand is a Boca Raton, FL-based agency with a special focus on technology-infused SEO. The agency has offices in Miami, Pennsylvania, Paris, and Montreal and provides services such as blog management, content marketing, public relations, and website development. The agency also offers Amazon-specific services, helping clients get found on Amazon through comprehensive keyword analysis and informed product descriptions.

    Clients

    • US Department of State
    • Mont Blanc
    • Sotheby's International Realty
    • LG

    Industries

    Notable Project

    An endoscopic equipment company has hired SEO Brand for SEO services. The team is also responsible for conducting keyword research, optimizing the client’s website speed, and adding content to the site. 

    “Overall, the results speak for themselves.”

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  • 18
    • Scheduling

      4.9
    • Quality

      4.8
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 10 - 49 employees
    • Riverton, UT

    SEO Werkz is a digital marketing firm in Draper, Utah, just outside of Salt Lake City. SEO Werkz has around 20 employees and helps clients with web design, content marketing, PPC, and social media marketing, in addition to SEO.

    Clients

    • Xidax
    • AdvancedMD
    • Enso Rings
    • Stampin Up!

    Industries

    Notable Project

    SEO Werkz provides full-scale SEO and PPC services for a personal injury law firm. Their responsibilities include website revamp, ad campaign strategy and retargeting, and content writing.

    "They’re masters at what they do and are an essential part of our business."

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  • 19
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.9
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • Portland, OR

    RevenueZen is a marketing firm founded in 2017 in Portland, Ore. with more than 10 employees. They excel at content marketing, marketing strategy, and SEO solutions for small and mid-market agencies in the fields of IT, advertising, and business services.

    Clients

    • ProdPerfect
    • Carevoyance
    • Bridge US
    • Daivergent

    Industries

    Notable Project

    RevenueZen is managing a software company’s SEO efforts. They conduct keyword research, blog briefs, and backlink outreach to drive organic traffic to the client’s website.

    "The RevenueZen team is easy to work with and does a good job of communicating results."

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  • 20
    • $1,000+
    • 10 - 49 employees
    • Colorado Springs, CO

    Based in Colorado Springs, CO, Infront Webworks specializes in web design development, and hosting services. Its marketing department provides SEO, marketing, and advertising assistance. A Google Certified Partner, Infront Webworks aims to boost website traffic for small, mid-market, and enterprise businesses.

    Clients

    • YMCA (Denver
    • Pueblo
    • Boulder)
    • Goodwill

    Industries

    Notable Project

    Infront Webworks developed a video production company’s WordPress website. They based the new platform on the company’s old site and followed the client’s instructions on what to change and update.

    "Their team worked well together, making it easy on us as clients."

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  • 21
    • $1,000+
    • 10 - 49 employees
    • Phoenix, AZ

    High Voltage SEO is a marketing agency founded in 2014. Based in Berlin, Germany, their team of 5 employees specializes in SEO.
     

    Clients

    • Freshbooks
    • Yellow Pages
    • National Car Rental
    • Hunkemöller

    Industries

    Notable Project

    High Voltage SEO created and implemented an SEO strategy for a distillery. They formed a strategy, managed expectations, and reported campaign progress.

    "They were receptive to everything we had to say and didn't dismiss our input."

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  • 22
    • $10,000+
    • 10 - 49 employees
    • Chicago, IL

    Comrade Digital Marketing is a Chicago-based full service digital marketing agency with a staff of 20. Since 2008, Comrade Digital Marketing Agency has assisted clients with SEO, web design, and e-commerce development.

    Clients

    • eCommerce
    • law firms
    • local service providers
    • manufacturing companies

    Industries

    Notable Project

    Comrade Digital Marketing Agency offered SEO services to a software development firm. They built a content strategy based on their keyword analysis, worked on on- and off-page SEO, created content, and ran ads.

    "Their team was always on standby, delivering exactly what we agreed and often exceeding expectations."

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  • 23
    • $1,000+
    • 10 - 49 employees
    • San Antonio, TX

    Funnel Boost Media is a marketing and lead generation company based in San Antonio. The company, founded in 2012, has a team of more than ten that provides PPC, SEO, web design, and branding services. Funnel Boost Media serves small and midmarket companies in the legal; medical; supply chain, logistics, & transport; e-commerce, and financial services industries.

    Clients

    • North Park Audi
    • Club Humidor
    • San Antonio Criminal Defense Lawyers Association
    • Little Fin Therapies

    Industries

    Notable Project

    Funnel Boost Media has developed a new website for a marketing agency's third-party customer. The team also provides PPC and SEO services for the client, aiming to retain new customers. 

    "They have a fantastic turnaround time, impeccable quality of work, and excellent communication!"

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  • 24
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • La Mirada, CA

    Wiideman Consulting Group is a marketing and advertising agency founded in 2015. Located in La Mirada, Calif., their team of about 15 employees specializes in providing SEO and marketing strategy services and consulting chiefly to small and medium-sized businesses across various industries. Other services include audits, search engine marketing, and more. 

    Clients

    • IHOP
    • Applebee's Neighborhood Grill + Bar
    • Blaze Pizza
    • Public Storage

    Industries

    Notable Project

    Wiideman provided SEO services for a marketing company. After a discovery phase, the team helped identify the best practices to address the company's challenges. 

    "The information they provided felt like they could have charged me much more."

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  • 25
    • Scheduling

      4.7
    • Quality

      4.6
    • Cost

      4.6
    • NPS

      4.7
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 50 - 249 employees
    • Greenwood, IN

    IndeedSeo is an SEO company based in Sas Nagar, India. Founded in 2012, IndeedSeo employs around 15 professionals as it looks to provide SEO services, as well as public relations and content marketing capabilities, to its small business, midmarket, and enterprise clients alike.

    Clients

    • Koshieo
    • Florida Freedivers
    • Delight girls Elite Escorts
    • SmallRig

    Industries

    Notable Project

    IndeedSEO provides SEO services for a real estate rental firm. Their main task is to help the client improve their SEO performance metrics.

    "They really care about the quality of their work and the results."

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  • 26
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.7
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 10 - 49 employees
    • Brooklyn, NY

    Sure Oak is a full-service SEO agency based in New York with a team of 30+ professionals. Founded in 2013, they offer comprehensive SEO services to companies ranging in size from small-business to enterprise-level clients from a wide variety of industries including business and financial services, B2B SaaS, e-commerce, insurance, education, healthcare, and non-profit. Their SEO services include business strategy, on-site optimization, link building, technical SEO, keyword research, and content development.
     

    Clients

    • Mercedes-Benz
    • American Red Cross
    • Mayflower
    • United Van Lines

    Industries

    Notable Project

    Sure Oak provides SEO services for a premium packaging company. The team is tasked with blog SEO, content briefs, page optimization, and increasing the client's conversion rates.

    "Overall, Sure Oak is a great SEO partner."

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  • 27
    • Scheduling

      4.9
    • Quality

      4.8
    • Cost

      4.5
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 50 - 249 employees
    • Seattle, WA

    SEO Company Fannit is an SEO speicalist based in Everett, Wash. Founded in 2020, SEO Company Fannit has 14 employees. Services provided by SEO Company Fannit include SEO, PPC, and web design for small to mid-sized companies.

    Clients

    • Bentley
    • Lamborghini
    • Rolls-Royce
    • HubSpot

    Industries

    Notable Project

    Fannit provides SEO and website development services to an industrial supplies store. The team has written content using the client’s desired keywords and restructured existing site content for SEO purposes.

    “Fannit is very good at staying on top of traffic when it slips.”

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  • 28
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 10 - 49 employees
    • San Diego, CA

    NextLeft, founded in 2016, is a digital content marketing and SEO agency. The company’s mission is to rid the world of digital clutter by creating the helpful, relevant content people are searching for online. Headquartered in sunny San Diego, NextLeft's team of 14 full-time SEO & Content Strategists amplify the world’s most loved brands.

    Clients

    • Hallmark Inc.
    • Fiskars Inc.
    • United Van Lines
    • Mayflower

    Industries

    Notable Project

    NextLeft provided SEO and PPC services to a nonprofit animal center. They used Google Ads to help boost the client’s online presence. 

    "They taught us a lot about the capabilities of our website and our Google Ads account."

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  • 29
    • $1,000+
    • 10 - 49 employees
    • Bend, OR

    SEO agency 180 Marketing was launched in 2013. Their small team is headquartered in Bend, Oregon. Their services include search engine optimization.

    Industries

    Notable Project

    180 Marketing provided SEO and PPC services to an e-commerce company. They conducted a discovery session, launched an SEO campaign, and worked on link building.

    "Deadlines have been met all the way through. "

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  • 30
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 2 - 9 employees
    • McLean, VA

    Direction, Inc. is a digital marketing agency based in Washington D.C., with an office in Great Falls, Va. Established in 2016, Direction, Inc. has 15 employees and primarily works with small and mid-market businesses in a variety of industries. Their services include SEO, PPC, web design, content marketing, and social media marketing

    Clients

    • DARO Apartments
    • The Vintage
    • Silver Tax Group
    • Swank Law Offices

    Industries

    Notable Project

    Direction handles the SEO needs of an e-commerce business. Their tasks involve backlinking, internal linking, keyword research, content writing, and other SEO efforts. The goal is to improve search visibility.

    "They do everything right, and we can’t imagine working with another SEO company."

    Visit Site

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