25 Best SEO Companies in United States in 2025

Search engine optimization (SEO) plays a pivotal role in shaping online visibility and driving organic traffic to websites across industries. In 2025, the SEO landscape in the United States continues to evolve, with companies leveraging innovative strategies and advanced tools to help businesses achieve competitive rankings on search engines. This article highlights the top 25 SEO companies in the country, based on comprehensive industry research, client reviews, service offerings, and market reputation.

* SmartSites

SmartSites is a digital marketing agency founded in 2011 by brothers Alex and Michael Melen. The company is based in Paramus, New Jersey. SmartSites specializes in search engine optimization (SEO), pay-per-click (PPC) advertising, social media marketing, and web design. The company has received awards for its innovative strategies and effective results, including recognition on the Inc. 5000 list as one of the fastest-growing companies in America. SmartSites emphasizes a client-centric approach, focusing on measurable outcomes and high customer satisfaction. The agency is recognized as a Google Premier Partner and a Facebook Marketing Partner, and is an expert in managing online advertising campaigns. SmartSites integrates advanced data analytics and performance tracking into its services, aiming to enhance clients' online visibility and drive conversions.

* Ignite Visibility

Ignite Visibility established in 2012 and headquartered in San Diego, California, is a digital marketing agency founded by John Lincoln. The company specializes in search engine optimization (SEO), pay-per-click (PPC) advertising, social media marketing, and email marketing. Ignite Visibility is recognized for its data-driven approach and comprehensive digital marketing strategies tailored to client needs. The firm has received multiple accolades, including being named one of the top SEO companies by Clutch and UpCity. The company has invented “Certainty Tech,” a proprietary technology which helps in forecasting results for every service provided. The company has been featured as an authority on several industry leading publications, including Forbes, Entrepreneur, and The New York Times.

* Funnel Boost Media

Funnel Boost Media is a digital marketing agency established in 2012. The company is based in San Antonio, Texas, and is founded by Ryan and Jacob. The company offers search engine optimization (SEO), pay-per-click (PPC) advertising, website design, and social media marketing, primarily targeting small to medium-sized businesses. Funnel Boost Media emphasizes customized strategies to enhance clients' online presence and improve lead generation. The agency has received recognition for its effective communication and client-focused approach. Funnel Boost Media employs white-hat SEO techniques to ensure compliance with industry standards. The firm has also been acknowledged as one of the top local SEO agencies.

* First Page Sage

First Page Sage is an SEO and thought leadership marketing agency founded by Evan Bailyn. The company was established in 2009 and headquartered in San Francisco, California. The firm is known for creating high-quality B2B content that enhances clients' online visibility and generates leads. First Page Sage's services include search engine optimization, content marketing, and lead generation, primarily serving clients in technical sectors such as SaaS, IT, and manufacturing. The agency has developed a reputation for its data-driven strategies and comprehensive SEO campaigns that integrate keyword research, technical SEO, and analytics. Notable clients include companies such as Logitech, Salesforce, and US Bank.

* Boostability

Boostability is a digital marketing agency specializing in white-label SEO services. The company was founded in 2009 and is located in Lehi, Utah. The company was established by a team focused on providing SEO solutions primarily for small to medium-sized businesses and digital marketing agencies that lack in-house capabilities. Boostability offers a range of services, including search engine optimization, content creation, and web design. The firm emphasizes scalable SEO packages tailored to the specific needs of its clients. The agency operates under a model that allows partners to resell its services, thereby expanding their own offerings without the need for extensive SEO expertise. Boostability employs white-hat SEO techniques to ensure compliance with industry standards, contributing significantly to its reputation within the competitive landscape of digital marketing.

* Aumcore

Aumcore, established in 2010 and based in New York City, is a digital marketing agency that provides a range of services, including search engine optimization (SEO), pay-per-click advertising, social media marketing, and content creation. The agency was founded by a team of marketing professionals dedicated to delivering innovative solutions tailored to clients' needs. Aumcore employs a data-driven approach to develop customized strategies that align with clients' business objectives. The firm has successfully completed over 330 projects and has worked with more than 50 brands globally. Notable clients include Denon, Miquando, Unilever, and eviCore, across multiple industries such as consumer electronics and healthcare. The firm emphasizes a comprehensive approach to digital marketing, integrating technical expertise with creative strategies to enhance brand visibility and engagement.

* SeoProfy

SeoProfy is a digital marketing agency founded in 2012 and headquartered in Miami, Florida. The company began as one of Eastern Europe’s leading SEO blogs before evolving into a globally recognized digital marketing agency. The company specializes in on-page optimization, technical SEO, off-page strategies, and Google penalty recovery. SeoProfy serves diverse industries, including professional services, education, media, retail, technology, and healthcare, with notable clients such as Jooble, FXTM, and Preply. The company is known for its data-driven methodology, and leverages proprietary tools alongside traditional platforms like Ahrefs to craft tailored SEO strategies that maximize online visibility. With a portfolio exceeding 200 clients, the agency maintains a strong presence in international markets, including North America and Europe. SeoProfy has earned recognition from industry publications such as Seosly and Statsdrone and contributes to SEO knowledge with over 200 blog posts annually.

* Victorious

Victorious, established in 2013 and based in San Francisco, California, is a specialized SEO agency founded by Dan Birch. The company provides data-driven search engine optimization services tailored to businesses of various sizes, from startups to large enterprises. Victorious employs a comprehensive approach that includes keyword research, on-page optimization, content creation, and link building. The agency has gained recognition for its effective strategies and has received numerous awards, including "Best US SEO Campaign" at the Global Search Awards in 2023 and "SEO Agency of the Year" at the US Agency Awards in the same year. The firm has worked with notable clients such as Wayfair, General Electric, Salesforce, and Yahoo!.

* Wiideman Consulting Group

Wiideman Consulting Group, founded in 2010 and located in La Habra, California, is a digital marketing agency established by Steve Wiideman. The firm offers search engine optimization (SEO), providing consulting, training, and strategic services to businesses and marketing agencies. Wiideman focuses on various competencies, including technical SEO, content strategy, and social media marketing. The agency is known for its comprehensive training programs designed to empower internal teams and agencies in managing their SEO efforts effectively. Wiideman has developed over 100 SEO strategic plans for prominent brands and has received recognition for its contributions to the field of digital marketing. The firm emphasizes a hands-on approach to client engagement, conducting audits and providing actionable insights to improve online visibility.

* OuterBox

OuterBox, founded in 2004 and headquartered in Copley, Ohio, is a digital marketing agency specializing in search engine optimization (SEO) and eCommerce solutions. The company was established by Justin Smith. OuterBox offers a range of services, including SEO, web design, paid search marketing, and eCommerce development, primarily targeting mid-market and small businesses. The agency emphasizes a results-driven approach, focusing on improving online visibility and driving revenue for its clients. OuterBox has received recognition as the #1 eCommerce SEO Agency globally by NeilPatel.com in 2020 and has been ranked among the top SEO companies by various industry platforms. The firm serves notable clients such as Morton Salt and Romeo's Pizza. The company is known for offering services to eCommerce SEO for platforms like Shopify and WooCommerce.