SEO and digital marketing services are growing rapidly as every business or startup needs them to expand their online reach, grow their business, and generate more organic leads. The SEO industry alone holds a massive value of $80–120 billion. Here is a curated list of the best SEO companies in the United States.

 

List of Top SEO Agencies in the United States

1. AskGalore

AskGalore: Professional SEO Services Companies in Dallas, Texas, USA
AskGalore is recognized as one of the best SEO companies in the USA, offering a blend of advanced technology and comprehensive SEO & marketing solutions. Specializing in Artificial Intelligence, Blockchain, and the Metaverse, we focus on driving innovation across diverse sectors, including Fintech, Fashion, Climate Tech, Sports Analytics, SaaS Development, and Health & Fitness. Our end-to-end tech services include enterprise software development, product engineering, app development, and e-commerce platforms.

AskGalore takes search optimization services to the next level with AI-powered SEO. By using advanced AI technologies, we deliver data-driven strategies that boost site visibility, drive organic traffic, and optimize content for maximum impact. 

As a trusted company for SEO and search optimization agency, we are dedicated to enhancing our clients' digital presence with tailored SEO services and performance marketing strategies.
 

2. Fruition Growth

Fruition is one of the leading SEO companies in the USA, specializing in search engine optimization services that help middle-market businesses maximize their return on advertising and technology spends. 

Known for its top-notch digital strategy and technical execution, Fruition combines a skilled team with proprietary software to deliver a competitive edge. This SEO firm in the USA is especially strong in working with middle-market clients who need a powerful digital partner with complete marketing and tech stack capabilities.


3. Intero Digital
Intero Digital is a top choice among search engine optimization companies in the USA and a pioneer in both SEO and SEM. With a foundation of patented technology and proven strategies, Intero Digital helps businesses increase brand equity, grow qualified traffic, and drive revenue. 

This SEO firm in the USA offers a complete set of search engine optimization services designed to capture market share and boost visibility for clients across competitive industries.
 

4. Ignite Visibility

Ignite Visibility is a leading SEO company in the USA with offices in San Diego, CA, and Orlando, FL. This full-service digital marketing agency is dedicated to delivering effective search engine optimization services and a high-touch customer experience that drives real results. 

Ignite Visibility's mission is to provide the best digital marketing and SEO services in the USA, using their profits to reinvest in client success, employee growth, and community initiatives.

 

5. SmartSites

SmartSites was founded by brothers Alex and Michael Melen, driven by a passion for digital innovation. Today, it stands out among the leading SEO companies in the USA and has become one of America’s fastest-growing businesses. 

With over 1,000 five-star reviews since 2011 and a 97% satisfaction score from Dun & Bradstreet, SmartSites has proven its ability to deliver exceptional search engine optimization services and results that exceed client expectations.
 

6. Victorious

Victorious is a standout among search engine optimization companies in the USA, offering services that range from enterprise SEO solutions to boosting visibility for small businesses. 

The company's mission is to turn search marketing into a sustainable lead generation pipeline through clarity, transparency, and accountability. By setting aside egos and leveraging deep industry expertise, Victorious delivers search engine optimization that help businesses thrive.

 

7. OuterBox

OuterBox is an SEO & digital marketing agency specializing in website design, development, and comprehensive online marketing strategies. Established in 2004, the company has collaborated with a diverse range of clients to enhance online sales, lead generation, and overall business growth.

With a team exceeding 240 in-house professionals, OuterBox offers a suite of services, including search engine optimization (SEO), pay-per-click (PPC) management, eCommerce website design, conversion rate optimization (CRO), and email marketing. This integrated approach ensures that all aspects of a client's digital presence work cohesively to achieve optimal results.

 

8. Volume Nine

Volume Nine (V9) is a standout among SEO companies in the USA, offering innovative search engine optimization services that help brands rise above the noise online. 

Unlike other search engine optimization companies in the USA, V9 works closely with digital marketing teams that face real-world challenges such as industry regulations, internal politics, and intense competition. By providing tailored SEO services in the USA, V9 helps clients connect with their target audience effectively.

 

9. Thrive Internet Marketing 

Thrive Internet Marketing Agency is a full-service digital marketing firm established in 2005. Headquartered in Arlington, Texas, Thrive has expanded its presence with employees across 34 U.S. states and in 10 countries, serving clients worldwide.

Thrive offers a comprehensive range of services, including search engine optimization (SEO), pay-per-click (PPC) marketing, social media management, web design and development, content marketing, and more. 

 

10. Searchbloom

Searchbloom stands out among search engine optimization companies in the USA by ensuring they only bring on new clients when they are confident they can deliver a strong ROI. This promise sets them apart as a trustworthy search optimisation agency that prioritizes results, integrity, and transparency. 

Their expertise in SEO & marketing covers a wide range of search optimization services, including Local SEO, National SEO, Ecommerce SEO, International SEO, and PPC management.