Top SEO Agencies in the U.S.

In today’s digital landscape, even the most beautifully designed website will fail without effective SEO.

Search engine optimization is critical for visibility and growth. For example, Grammarly saw a massive boost in organic traffic – reaching 22.2 million visits per month – by focusing on SEO strategies. Whether you’re a small business or a large enterprise, the right SEO partner can help your site rank higher, attract qualified traffic, and ultimately drive more leads and sales. We evaluated dozens of U.S. agencies – looking at their technical expertise, content capabilities, and client results – to identify those with the strongest SEO offerings. Each agency is profiled with key details (website, founding, services, etc.) followed by a brief description of their SEO approach and achievements.

UFO

• Website: uforocks.com
• Founded: 2007
• Services: SEO, PPC, social advertising, conversion optimization, email marketing
• Industries served: eCommerce, business services, medical, legal, consumer products & services
• Locations: Cincinnati, OH; Columbus, OH; Portland, OR
• Contact: (513) 549‑7355

UFO Performance Marketing describes itself as an “engineering firm for marketing,” using experimental design and data-driven frameworks to tie performance back to revenue. Founded in 2007, the agency combines strategic thinking with technical expertise to deliver custom full-funnel strategies. While known for paid search, UFO also has a strong SEO practice: it conducts in-depth keyword research and site optimization to increase organic rankings. In practice, UFO builds tailored content and on-page optimizations that align with client goals, ensuring that SEO drives measurable business growth.

Victorious SEO

• Website: victoriousseo.com
• Founded: 2014
• Services: SEO services (on-page and technical SEO, link building, content marketing)
• Industries served: SaaS, technology, finance, healthcare, e-commerce (among others)
• Locations: San Francisco, CA
• Contact: (415) 621-9830

Victorious SEO is a premier San Francisco–based SEO agency that emphasizes data-driven strategies. The agency has built a reputation for “lifting the veil” on SEO by delivering transparent, measurable improvements in search rankings and organic traffic. Victorious uses proprietary frameworks and expert analysis to tailor SEO campaigns for each client, from small startups to larger enterprises. In practice, they focus on thorough keyword research, content optimization, and high-quality link building to drive consistent growth. Clients of Victorious often praise its collaborative approach and clear communication, noting substantial increases in visibility and inbound leads as a result of the agency’s SEO efforts.

Searchbloom

• Website: searchbloom.com
• Founded: 2014
• Services: SEO, PPC management, conversion rate optimization (CRO)
• Industries served: Retail, healthcare, technology, finance, manufacturing (among others)
• Locations: Draper, UT
• Contact: (801) 590-4051

Searchbloom is an award-winning SEO agency that delivers results-driven organic search marketing strategies. Using a direct analyst-to-client model, Searchbloom ensures high accountability and fast communication. The team sets clear goals, emphasizes transparent reporting, and applies a data-centric approach to SEO. For instance, Searchbloom has developed proprietary frameworks (like A.R.T. and A.C.E.) to guide optimizations in authority, relevancy, and content. The agency’s work has been featured in Forbes and USA Today, reflecting its strong industry recognition. Overall, Searchbloom focuses on measurable ROI by continually optimizing metadata, site structure, and content to improve search rankings and drive organic traffic for its clients.

Grow & Convert

• Website: growandconvert.com
• Founded: 2015
• Services: SEO, content marketing, PPC services
• Industries served: B2B SaaS, professional services, e-commerce (among others)
• Locations: San Francisco, CA
• Contact: [email protected] | 415-994-9352

Grow & Convert is a San Francisco–based agency specializing in SEO-driven content marketing. The firm uses an interview-based content creation approach to produce high-value articles and resources that rank well in search and engage target audiences. Its methodology is highly results-oriented: for example, the agency drove 200,000 monthly organic visitors for a healthcare client and hundreds of free signups for a B2B SaaS platform by combining on-page optimization with strategic content campaigns. Grow & Convert follows a four-step process (strategy, writing, promotion, conversion) to ensure every SEO and content effort translates into tangible leads. This process-driven approach helps clients in competitive niches (like software and tech) achieve and sustain top search positions.

Fractl

• Website: frac.tl
• Founded: 2012
• Services: SEO (technical SEO, on-page optimization), organic growth strategy, digital PR, content development
• Industries served: B2B, education, healthcare, technology, consumer brands (among others)
• Locations: Delray Beach, FL
• Contact: 1-844-3-FRACTL

Fractl is a content-driven SEO agency that specializes in data-driven campaigns designed for organic visibility. The agency produces highly shareable content (infographics, interactive studies, long-form guides) and pairs this with robust link-building outreach. Fractl’s work is built on deep market research and creative ideation – its pieces have been featured in outlets like the Harvard Business Review and The New York Times. By integrating technical SEO (site audits, structured data) with innovative content, Fractl helps clients dominate their industry search verticals. The agency has earned recognition as a Top Content Marketing Agency and focuses on strategies that increase brand authority and sustained organic traffic for its clients.

SEO Brand

• Website: seobrand.com
• Founded: 2006
• Services: SEO, PPC advertising, content marketing, social media marketing, web development, reputation management
• Industries served: Education, manufacturing, healthcare, retail, finance, hospitality, technology, legal
• Locations: Boca Raton, FL (and New York, Los Angeles offices)
• Contact: 877-470-7177

SEO Brand is an award-winning digital marketing agency focused on multi-channel growth, including search. Founded in 2006, the Boca Raton–based agency has helped businesses “build their brand presence through multiple digital channels,” with SEO as a core offering. SEO Brand serves a wide range of industries (from education to luxury retail) by delivering scalable, data-driven SEO and content strategies. For example, the agency customizes on-page and off-page optimizations based on analytics to improve clients’ rankings. In practice, SEO Brand often integrates SEO with PPC and social campaigns, enabling clients to generate traffic from diverse sources and increase conversions. Its multi-disciplinary approach and emphasis on analytics align SEO work closely with revenue growth goals.

SocialSEO

• Website: socialseo.com
• Founded: 1996 (as Pikes Peak SEO, rebranded 2016)
• Services: SEO, social media marketing, PPC (paid search), email marketing, CRO, Amazon marketing
• Industries served: Automotive, manufacturing, healthcare, home services, retail (among others)
• Locations: Colorado Springs, CO (headquarters); Denver, CO
• Contact: 1-800-657-1645

SocialSEO (formerly Pikes Peak SEO) is a Colorado-based digital marketing agency with a 20+ year history in SEO and internet marketing. The firm describes itself as a “dedicated SEO firm and internet marketing company” that is passionate about delivering results. SocialSEO provides a full range of search-focused services (SEO, local SEO, e-commerce SEO, etc.) alongside paid search and social marketing. The agency prides itself on proprietary processes and industry partnerships: it is a Google Premier Partner and has won awards as a top SEO firm. In practice, SocialSEO’s team emphasizes transparent monthly reporting and strategic optimization of on-page elements (keywords, site structure) to grow organic traffic. Many clients have achieved substantial ranking gains and lead growth by leveraging SocialSEO’s comprehensive approach.

iSynergy

• Website: isynergy.com
• Founded: 2011
• Services: SEO, content marketing, website development, branding
• Industries served: Manufacturing, construction, healthcare, hospitality, education, B2B services
• Locations: Canfield, OH
• Contact: (330) 892-8777

iSynergy is an Ohio-based digital marketing agency that showcases deep SEO expertise. The company stays “attuned to the constantly evolving SEO ecosystem,” applying adaptive techniques to improve client rankings. Its services include both on-page and technical SEO, supported by tailored content strategies and link-building. For example, iSynergy frequently conducts thorough keyword audits and site optimizations for manufacturing and industrial clients, helping them rank higher in niche markets. Clients commend iSynergy for its hands-on approach and ability to navigate algorithm changes. By focusing on the fundamentals (relevant keywords, structured content, backlink quality), iSynergy builds sustainable SEO improvements for a variety of local and regional businesses.

Omaha SEO Company

• Website: omahaseocompany.com
• Founded: 2012
• Services: SEO, PPC, local search optimization, web design, social media marketing
• Industries served: Retail, professional services, nonprofits, hospitality, sports
• Locations: Omaha, NE
• Contact: (402) 616-5525

Omaha SEO Company is a full-service agency focused on results for local and national clients. The firm “exhibits a profound understanding of search engine optimization” by custom-designing strategies around each client’s goals. Omaha SEO Company handles everything from on-page optimization and content creation to technical fixes and local SEO tactics. Its team has demonstrated success driving small businesses up to the first page of Google, boosting organic traffic for sectors like hospitality and retail. The agency also offers PPC and web design to complement its SEO work, ensuring clients have an optimized site and marketing plan that together maximize visibility and lead generation.

HigherVisibility

• Website: highervisibility.com
• Founded: 2008
• Services: SEO, PPC management, web design, CRO, content marketing, social media marketing
• Industries served: Healthcare, e-commerce, home services, legal, finance, others
• Locations: Memphis, TN (headquarters); St. Louis, MO; Chicago, IL; Beverly Hills, CA
• Contact: (888) 212-4458

HigherVisibility is a multi-award-winning SEO agency known for its transparent, data-driven approach. The firm “enhances online visibility” for clients of all sizes and was named Best SEO Agency four times by industry awards. In practice, HigherVisibility begins with a thorough technical and competitive audit, then implements on-page and off-page optimizations. The agency serves a wide range of industries (from healthcare to e-commerce) and frequently partners with enterprise clients. It invests heavily in client communication and education, providing detailed reports on keyword rankings and traffic. The team’s expertise in algorithm updates and aggressive testing has earned high client satisfaction: case studies often highlight significant gains in organic search performance and return on investment.

SEO Locale

• Website: seolocale.com
• Founded: 2015
• Services: SEO (local, national, and enterprise), paid search (PPC), web design, social media, lead generation
• Industries served: Healthcare, legal, real estate, home services, e-commerce, B2B
• Locations: Jenkintown, PA
• Contact: (267) 368-7905

SEO Locale is a digital marketing agency that “propels its clients to the top of search rankings” through comprehensive SEO and marketing strategies. Specializing in niches like law firm SEO and multi-location business SEO, SEO Locale combines technical optimization (site speed, schema markup) with content targeting to rank clients in competitive verticals. The agency also provides local SEO packages, ensuring businesses appear in map packs and local searches. For example, SEO Locale has consistently improved visibility for personal injury law firms and real estate companies. Its approach is hands-on and detail-oriented: account managers monitor algorithms closely and adjust tactics, while the creative team produces optimized landing pages and content that convert visitors into leads.

Over The Top SEO (OTT SEO)

• Website: overthetopseo.com
• Founded: 2014
• Services: SEO, branding, social media strategy, web design
• Industries served: Law firms, healthcare, business services, enterprise technology, others
• Locations: Seattle, WA
• Contact: (206) 535-6924

Over The Top SEO (OTT SEO) is a Seattle-based SEO firm with a strong emphasis on technical excellence and transparency. It has worked with nearly 2,000 clients across industries, earning a reputation as a “trusted partner” for SEO and web marketing. OTT SEO employs proprietary tools and machine learning (like its Rank Boost AI system) to identify optimization opportunities. The agency strictly adheres to white-hat practices and claims industry-leading client retention. In addition to on-page and off-page SEO, OTT SEO offers branding and social media services. Its highly analytical process includes detailed site audits and continual refinement of strategy, which has led to numerous client successes — for example, many law firm clients have seen a jump into page-one rankings under OTT SEO’s guidance.

Lockedown Design & SEO

• Website: lockedownseo.com
• Founded: 2012
• Services: SEO, Local SEO, enterprise SEO, web design, Google Ads (PPC)
• Industries served: Government, education, healthcare, nonprofits, retail, manufacturing
• Locations: Sacramento, CA
• Contact: (916) 747-2198

Lockedown Design & SEO is a Sacramento-based agency that prides itself on creativity and measurable results. The firm crafts customized SEO strategies for each client, using original content and smart link-building to achieve top rankings. While the description above focuses on design, Lockedown’s core competency is in SEO: it has improved organic traffic for many local clients and earned awards from SEOblog and UpCity for its digital marketing work. The agency offers services from local SEO and e-commerce SEO to traditional marketing and branding, but everything ties back to search visibility. One client testimonial highlights Lockedown’s attention to detail and success driving keyword rankings. Overall, Lockedown is known for combining strategic planning with hands-on execution to boost search performance.

SEO Werkz

• Website: seowerkz.com
• Founded: 2012
• Services: SEO (local, national, e-commerce), SEM/paid advertising, retargeting, link building, reputation management, web design, social media
• Industries served: E-commerce, health and wellness, services, nonprofits, small business (among others)
• Locations: Riverton, UT (Salt Lake City metro)
• Contact: (801) 930-0119 | [email protected]

SEO Werkz is a Utah-based SEO specialist known for aggressive, results-focused campaigns. The agency “excels in elevating keyword rankings and driving organic traffic” through a comprehensive suite of services. SEO Werkz’s team has placed thousands of keywords on Google’s first page and built hundreds of websites optimized for search. They serve clients nationwide in e-commerce and other sectors, often as part of an ongoing SEO partnership or white-label service. In practice, SEO Werkz customizes each campaign with on-page SEO, technical fixes, and extensive link acquisition. By coupling analytics with iterative testing, the firm continuously refines strategies to meet client goals. Their track record (including Inc. 5000 recognition) reflects strong growth driven by search visibility.

Sure Oak

• Website: sureoak.com
• Founded: 2017
• Services: SEO services, link building, content creation, lead generation
• Industries served: Technology, finance, education, healthcare, retail (among others)
• Locations: Brooklyn, NY
• Contact: 1-800-736-7190

Sure Oak is a New York–based SEO and content agency known for its holistic “Game Plan” approach to search. The firm works with mid-sized businesses to improve search rankings by aligning SEO with broader marketing goals. Sure Oak’s process involves in-depth research and ongoing optimization: they develop a roadmap that includes technical SEO, content marketing, and link acquisition tailored to each client. The agency has earned awards such as Best SEO Agency in NYC (by Expertise) for its consistent results. In practice, Sure Oak analyzes competitors and market trends to guide the content strategy, then implements changes (meta tags, site architecture, etc.) to capture more organic traffic. Their data-driven mindset and focus on user intent help clients attract qualified leads through search.

Serial Scaling

• Website: serialscaling.com
• Founded: 2019
• Services: SEO and content strategy, paid media strategy, growth marketing consulting
• Industries served: Professional services, healthcare, e-commerce, consumer goods, enterprise
• Locations: Brooklyn, NY

Serial Scaling is a New York–based agency that focuses on sustained organic growth, especially for lead-generation and e-commerce sites. The team takes a 360-degree approach to SEO: continuous content updates, technical optimizations, keyword research, and link-building, all driven by data and experimentation. Despite being founded in 2019, Serial Scaling has quickly earned recognition (top Clutch rankings for SEO) by delivering measurable ROI. Its process includes detailed executive consulting and customized reporting. The agency emphasizes transparency and collaboration – clients receive frequent updates and education about strategy. This meticulous, growth-oriented methodology has helped a range of clients (from startups to Fortune 500) improve organic traffic and conversions over time.

Stella Rising

• Website: stellarising.com
• Founded: 1982
• Services: SEO, analytics/intelligence, paid search, media strategy/activation, social media, Amazon channel strategy
• Industries served: Consumer brands, retail, healthcare, travel, technology, CPG (among others)
• Locations: Westport, CT
• Contact: (203) 256-0880

Stella Rising is a decades-old, women-led agency that applies research-driven methods to marketing. While it is known for multi-channel campaigns, a key part of its business is SEO-driven demand generation. The firm uses proprietary tools (like its “Glimmer” research panel) to understand target audiences, then integrates SEO and content plans into broader media strategies. Stella Rising has won industry awards (Best CPG Campaign by The Drum) and has developed a predictive marketing model (“Halo”) to forecast performance. In practice, the agency balances brand building with SEO: for example, it may use SEO content and blog strategies alongside paid tactics to maximize search visibility. Their data modeling and reporting tools ensure clients understand the real impact of SEO on their brand outcomes.

Intero Digital

• Website: interodigital.com
• Founded: 1996
• Services: SEO, paid media (SEM/PPC), branding, content marketing, web development
• Industries served: Healthcare, technology, finance, B2B, e-commerce, education (among others)
• Locations: Colorado Springs, CO
• Contact: (866) 897-5011

Intero Digital is a Colorado-based full-funnel marketing agency with strong SEO capabilities. The firm offers tailored SEO solutions for businesses of all sizes, from local enterprises to large corporations. A key element of Intero’s offering is its proprietary SEO toolset (like the patented InteroBOT® crawler) that allows the team to audit sites and predict performance. Intero integrates SEO with paid media and creative services: its experts might redesign a site’s architecture for better crawlability, optimize content for target keywords, and support outreach for inbound links. Clients benefit from Intero’s 24/7 tracking and reporting system, as well as a 24-hour response promise. Overall, Intero’s history of over two decades and its enterprise-level resources (500+ employees) help it execute complex SEO and content campaigns at scale.

Power Digital

• Website: powerdigitalmarketing.com
• Founded: 2012
• Services: SEO, content marketing, conversion rate optimization (CRO), paid advertising, branding, public relations, affiliate marketing
• Industries served: B2B, e-commerce, technology, retail, CPG, healthcare (among others)
• Locations: San Diego, CA (headquarters); Birmingham, AL
• Contact: (509) 903-9414

Power Digital is a growth marketing agency that offers a full suite of services, including SEO, to clients ranging from startups to enterprise brands. The agency’s tech-driven approach emphasizes integrated growth: its SEO team conducts thorough audits of metadata, backlinks, content quality, and technical factors to build a comprehensive strategy. This SEO work is woven into a broader growth plan that may also include CRO, PR, and paid social. Power Digital claims clients grow 2.4× faster than industry averages by using its strategies. In SEO specifically, Power Digital focuses on content quality and user experience. Its dedicated SEO specialists align closely with client revenue goals, optimizing sites to increase both rankings and conversion rates. Through this holistic approach, Power Digital helps brands gain visibility while driving measurable business results.

Rankings.io

• Website: rankings.io
• Founded: 2013
• Services: SEO (specialized for law firms), PPC advertising for lawyers, Local Service Ads (Google Guarantee) for attorneys, law firm website design, social media marketing for lawyers, mass torts marketing
• Industries served: Legal (exclusively law firms and attorneys)
• Locations: Marion, IL
• Contact: 844-385-4916

Rankings.io is an SEO agency dedicated entirely to law firms and attorneys. It combines deep legal industry knowledge with specialized SEO techniques to “bring in consistent, qualified cases” for its clients. The firm provides full-service legal marketing, from local and national attorney SEO to Google Guaranteed ads and custom website design. A hallmark of Rankings.io’s offering is transparency: clients have on-demand access to rank tracking so they can see progress in real time. The agency employs a team of over 40 legal marketing specialists who stay current on attorney-specific SEO (including compliance with state bar advertising rules). Through targeted content, citation building, and technical optimizations, Rankings.io helps law firms dominate search results in competitive legal markets.

On The Map Marketing

• Website: onthemap.com
• Founded: 2009
• Services: SEO (including local, e-commerce, enterprise), web design, marketing strategy, PPC, link building
• Industries served: Hospitality, retail, entertainment, e-commerce, professional services (among others)
• Locations: Miami, FL
• Contact: (305) 420-5556

On The Map Marketing is a Miami-based firm known for driving clients to top search rankings. The agency offers specialized SEO services – from local and e-commerce SEO to enterprise SEO – alongside web design and PPC management. With over a decade of experience and 300+ clients nationwide, On The Map has earned awards from Clutch, SEOblog, and others for its effectiveness. The agency’s approach emphasizes “tangible results,” meaning that SEO efforts are carefully tracked. Clients often see improvements in listings and organic traffic. On The Map’s diversified service set (including Shopify expertise and social integration) enables it to tailor strategies for brands of all sizes, helping them achieve consistent presence on page one of search results.

LinkGraph

• Website: linkgraph.com
• Founded: 2018
• Services: SEO, link-building, content marketing, digital PR, paid search
• Industries served: Financial, gaming, tech, health, consumer, and many others (custom solutions)
• Locations: New York, NY
• Contact: [email protected] | (646) 659-8984

LinkGraph is a New York–based SEO agency “known for its data-driven approach, industry-specific expertise, comprehensive services, and transparent results.” The company employs advanced analytics and machine learning to inform SEO strategies. Its multidisciplinary team handles everything from technical SEO audits to strategic content creation and link-building campaigns. Notably, LinkGraph has been recognized as an industry leader for its effective use of data and SEO technology. In practice, the firm often tackles complex projects like site migrations or large-scale content overhauls, ensuring that search visibility improves throughout. Whether it’s boosting keyword rankings for a fintech startup or growing organic traffic for an e-commerce brand, LinkGraph emphasizes measurable outcomes and clear communication of SEO value.

Ignite Visibility

• Website: ignitevisibility.com
• Founded: 2008
• Services: SEO, paid media (PPC), local SEO, generative AI optimization, digital PR, influencer marketing, content marketing, web design, CRO
• Industries served: Multi-location businesses (franchises, retail chains), healthcare, finance, home services, hospitality, B2B, e-commerce, and more
• Locations: San Diego, CA (headquarters); additional U.S. offices in New York, Seattle, and San Francisco
• Contact: (619) 752-1955

Ignite Visibility is a San Diego–based digital marketing agency consistently ranked among the #1 SEO agencies in the U.S. The firm focuses on ROI-driven strategies for enterprise and multi-location brands. Its SEO services cover everything from traditional on-page and technical optimization to modern tactics like generative search optimization and local inventory ads. Ignite leverages a large team (over 300 employees) and proprietary tools to automate and scale SEO work. For example, the agency offers advanced reporting dashboards and custom roadmaps for clients. Known as a six-time Inc. 5000 honoree, Ignite Visibility blends creativity with data; its approach includes thorough competitor analysis, content gap research, and continuous testing. Clients appreciate Ignite’s full-service support (often paired with paid campaigns) and the agency’s commitment to transparency and metrics-driven results.

Straight North

• Website: straightnorth.com
• Founded: 1997
• Services: SEO, PPC management, web design, email marketing
• Industries served: B2B, manufacturing, services, real estate, education, e-commerce (among others)
• Locations: Downers Grove, IL
• Contact: (312) 870-0085

Straight North is a Chicago-area agency with a 20+ year track record in SEO and online lead generation. The firm provides comprehensive SEO and digital visibility enhancement services, consistently praised for its strategic approach and client communication. Straight North’s process typically starts with a deep audit and goal-setting, followed by onsite optimizations (keywords, content, site speed) and targeted outreach. Its clients often note “measurable improvements in website rankings and conversions.” The agency has worked with hundreds of companies, from small manufacturers to enterprise businesses, helping them rank for competitive B2B terms. In addition to SEO, Straight North integrates PPC and web design when needed, but its core strength lies in creating predictable, ROI-focused organic search campaigns.

OuterBox

• Website: outerboxdesign.com
• Founded: 2004
• Services: E-commerce SEO, web design and development, paid search (PPC) management, CRO
• Industries served: E-commerce, manufacturing, B2B, niche retail, education (among others)
• Locations: Akron, OH
• Contact: 1-866-647-9218

OuterBox is an Akron-based agency that specializes in e-commerce and enterprise SEO. Since its founding in 2004, OuterBox has focused on “e-commerce marketing,” becoming a leading firm in online retail SEO. The agency provides full service digital marketing, but SEO is central to its mission. It optimizes product sites and large-scale catalogs, improving site structure, product page content, and link authority to increase organic traffic and sales. OuterBox’s work earned it recognition as the #1 e-commerce SEO company in the U.S. by TopSEOs.com. In practice, OuterBox combines technical site builds (for speed and conversion) with aggressive SEO tactics. Its in-house team of specialists often manages large budgets of content and link-building projects, ensuring clients see consistent growth in search rankings and revenue through organic channels.

Summary

These top 25 U.S. agencies represent a broad spectrum of SEO expertise. From data-driven specialists to full-service digital firms, they all deliver on one thing: helping businesses rank higher and drive measurable growth from search. Whether you need local SEO for a brick-and-mortar business or enterprise-level SEO strategy, the agencies above have proven methods and client success stories. Together, they illustrate the power of a well-executed SEO strategy to boost visibility, traffic, and ultimately revenue. Each profile above is drawn from recent industry sources and company information to give you a clear, up-to-date picture of their capabilities and achievements.