SEO Agencies in the USA

Hennessey Digital

Law-firm marketing agency in the Los Angeles area offering SEO, GEO and PPC for personal injury, criminal defense and other practices.

Horton Group

Nashville web design and digital marketing firm that sells SEO and AI search visibility work alongside websites, Google Ads and social media, delivered by an in-house team.

63% increase in web engagement and 100% of tracked keywords ranking in the top three search results for Harpeth Painting · agency-reported

Hozio

Long Island digital marketing agency with a New York City office.

312% organic traffic Local HVAC client organic traffic growth · agency-reported

Hurrdat

Omaha media, marketing and entertainment company that says it is best known for SEO, web design and media production.

Iconier

Las Vegas digital agency with separate SEO pages for technical, local, national, ecommerce and AI search work, plus web and app design.

Ignite Visibility

San Diego full-service digital marketing agency with a large SEO practice aimed at franchise, multi-location and ecommerce brands.

+130% indexed pages The Technical SEO Audit That Increased Indexed Pages by 130% · agency-reported

Infidigit

Mumbai-based SEO specialist for e-commerce and enterprise sites, also covering international SEO, app store optimisation and AI-search optimisation, with a New York office for US clients.

270% revenue growth for Myntra · agency-reported

Insite Advice

St. Louis digital marketing and web design company with dedicated pages for local SEO and ecommerce SEO in St. Louis and a free SEO audit offer.

IntoClicks

Tucson web design, SEO and online advertising agency serving small and mid-sized businesses, government bodies and nonprofits from a single local office.

Intrepid Digital

Los Angeles digital agency that says SEO is how it started.

Jax Media Team

Jacksonville digital agency running integrated SEO programs (technical, content, local, AI search) alongside paid media and web design, for service businesses.

Journey Further

Leeds-headquartered performance and discovery agency with an Organic Media offer spanning technical SEO, content, digital PR and GEO/AEO visibility in AI platforms, plus paid media,…

triple-digit media value growth Integrated organic strategy drives triple-digit media value growth · agency-reported

LAv1

Los Angeles digital marketing agency with organic and local SEO service pages, AI-search workflows and public case studies for local businesses.

Ranked #1 for “florists Beverly Hills” on Google Maps Luxury Flower Shop (Beverly Hills) · agency-reported

Levy Online

Las Vegas digital marketing agency with dedicated SEO pages for ecommerce, dental and law-firm clients, covering technical, local and link-building work.

Los Angeles SEO Inc

Los Angeles SEO company covering local, national, multi-location, enterprise, technical and ecommerce SEO, with content strategy and AI search optimization.

Lounge Lizard

Long Island and New York City web design and development agency with a digital marketing arm that sells SEO audits, content optimization and AI-search work.

+56.7% boost in organic search for NHS Chicago · agency-reported

M16 Marketing

Atlanta full-service digital agency combining web design, SEO, AEO, paid media and content, positioned for Atlanta businesses and national brands.

Mad Fish Digital

Portland performance marketing agency with a full SEO service page covering technical audits, migrations and LLM-aware optimization, alongside paid media, content and design.

Marketing Zone

Minneapolis-area B2B marketing agency that focuses on SEO and content for industrial and precision manufacturers, with a founder who is a former process engineer.

MarketKeep

Towson, Maryland agency in the Baltimore metro serving small business owners with SEO, web design and Google Ads.

273% return on investment from organic search in 2026 for Roof Right · agency-reported