The Best SEO and AI Search Agencies in the United States Right Now

Written By Ritner Digital

The search for an SEO or AI search agency in 2026 is genuinely harder than it was three years ago — not because good agencies are harder to find, but because the category has expanded and fragmented in ways that make meaningful evaluation more difficult. Every agency now has AI somewhere in its service description. GEO and AEO appear on service pages that have not substantively changed their methodology. The language has proliferated faster than the capability behind it.

This roundup is designed to cut through that. It covers the firms that have demonstrated real capability — in traditional SEO, in AI search visibility, or in both — based on documented results, verified client feedback, industry reputation, and publicly available evidence of the work they do. It is organized to help you identify the right category of firm for your specific situation, not to produce a definitive ranked list of who is best without knowing anything about your business.

One note before the list: we are Ritner Digital, and we are on this list. We have written about that transparently at the bottom. Every agency listed here is genuinely worth considering. The right one for your business depends on your size, your market, your specific visibility challenges, and what you are trying to accomplish.

Enterprise and Full-Service SEO

WebFX

WebFX is widely considered one of the highest-performing SEO agencies in the US. With three decades of experience, a massive in-house team, and hundreds of client success stories, they combine scale with deep search expertise. They have helped clients generate more than ten billion dollars in revenue over five years and generate over 2.2 million organic visits monthly to their own site. Pricing starts at approximately one thousand dollars, making them accessible to small businesses while remaining robust enough for enterprise SEO. ATAK Interactive

WebFX is a strong choice for mid-market to enterprise businesses that need a full-service digital program — SEO, content, paid media, CRO — managed under one roof with comprehensive reporting infrastructure. Their scale means they have deep experience across most verticals.

Best for: Mid-market and enterprise businesses wanting a full-service partner with a long track record. Headquartered:Harrisburg, PA

Thrive Internet Marketing Agency

Thrive applied its own AI SEO strategies internally to drive dramatic growth. From January to October of 2025, Thrive grew its total traffic from all AI platforms by a staggering 4,302 percent, including 322 percent from Gemini and 862 percent from ChatGPT. Their Thrive Stats platform consolidates KPIs, conversions, and ROI into one dashboard, giving clients complete transparency. Authoritysolutions

Thrive is one of the few large agencies that has documented its own AI search results publicly, which is a meaningful signal of genuine capability rather than marketing language. They offer flexible pricing with no long-term contracts, which is uncommon at their scale.

Best for: Businesses wanting an established agency with documented AI search results and transparent reporting.Headquartered: Arlington, TX

Ignite Visibility

Ignite Visibility is consistently ranked among the top US SEO agencies and has built a strong reputation particularly in B2B SEO, enterprise technical work, and multi-channel integration. They have a well-documented track record of connecting SEO programs to revenue outcomes rather than just traffic metrics, which puts them ahead of agencies still reporting primarily on rankings.

Best for: B2B and enterprise companies wanting an agency with a strong revenue attribution focus. Headquartered: San Diego, CA

Silverback Strategies

Silverback Strategies stands out for organizations that want SEO connected directly to business performance — not just traffic growth. With 500-plus experiments run annually across SEO, paid media, creative, and measurement, Silverback continuously identifies the strategies that drive incremental leads and sustainable revenue growth. Their SEO work focuses not just on rankings but on conversions and revenue impact, making them a go-to for both mid-market and enterprise brands seeking transparent, data-driven results. Bol-agency

Best for: Performance-obsessed mid-market and enterprise brands that want SEO tied explicitly to revenue.Headquartered: Washington, D.C.

Victorious

Victorious stands out for its unwavering commitment to excellence and its exclusive focus on search engine optimization services. Based in San Francisco, the agency has built a reputation for delivering measurable results through customized strategies tailored to each client's goals. The agency's approach begins with in-depth keyword research and competitive analysis to identify high-impact opportunities. Rizzo Young

Victorious is notable for doing only SEO — no paid media, no social, no web design. That exclusive focus tends to produce deeper SEO expertise than generalist agencies that treat SEO as one of many services.

Best for: Businesses that want an SEO-only agency and are not looking for bundled full-service programs.Headquartered: San Francisco, CA

HigherVisibility

HigherVisibility is known for its comprehensive digital marketing solutions and commitment to delivering measurable results. Their proprietary InSite Dashboard provides clients real-time insights into campaign performance, integrating data from tools like Google Analytics to track traffic sources and conversions. HigherVisibility's expertise spans multiple sectors, including eCommerce, legal, automotive, and franchise businesses. Rizzo Young

Best for: E-commerce, legal, automotive, and franchise businesses wanting industry-specific SEO expertise.Headquartered: Memphis, TN

AI Search and GEO-Forward Agencies

First Page Sage

First Page Sage is the top SEO firm in the US based on multiple meta-analyses, having focused their expertise purely on SEO and its AI search cousin GEO, as opposed to the more typical agency trajectory of expanding horizontally into other marketing services. The fact that they were the first agency to offer Generative Engine Optimization services speaks to the firm's commitment to staying at the forefront of organic marketing. Their exploration and refinement of emerging marketing fields is driven by their CEO, Evan Bailyn, who is regarded as the founder of the GEO marketing discipline. First Page Sage's approach focuses on ranking for keywords and queries that indicate a searcher is actively looking for products or services, creating a flow of qualified leads rather than general research traffic. Store Transform

First Page Sage is the most legitimate claim to GEO pioneer status in the US market. If your primary need is building AI search citation authority specifically — and you are in B2B or professional services — they are the reference point.

Best for: B2B and professional services firms wanting GEO-first content strategy and thought leadership authority.Headquartered: San Francisco, CA

iPullRank

iPullRank has built one of the strongest technical SEO and AI search reputations in the industry, with a particular emphasis on enterprise technical work and the intersection of SEO with emerging AI discovery surfaces. Their founder Mike King has been one of the most credible voices on the technical dimensions of AI search optimization. They appear consistently on GEO agency shortlists from credible third-party sources.

Best for: Enterprise organizations with complex technical SEO challenges who also need genuine AI search expertise.Headquartered: New York, NY

Siege Media

Siege Media is widely known for high-quality content creation at scale — particularly infographics, blog content, and guides. In 2026, they have extended that expertise into GEO-aware content marketing, producing the type of substantive, well-sourced content that AI systems cite. Their content quality is consistently high enough that it earns external citations, which is the specific input that builds AI search authority over time. Proximate Solutions

Best for: Businesses that need high-quality content at scale as the foundation of their GEO and SEO program.Headquartered: San Diego, CA

Genevate

Genevate is one of the first digital marketing firms built exclusively for the generative AI era. Founded by Brett Kleinberg, a New York public relations veteran, the agency specializes in combining GEO with strategic PR to drive qualified lead generation and reputation management. Serving large and small businesses across real estate, law, healthcare, education, and executive search, Genevate focuses on positioning brands as trusted authorities for AI-generated answers. They specialize in shaping how platforms like ChatGPT, Perplexity, and Google AI Overviews discover, describe, and recommend businesses. Embarque

The combination of GEO and PR is a genuinely logical pairing — external editorial citations are one of the strongest inputs into AI citation authority. Genevate's PR-native background makes them distinctive in the GEO space.

Best for: Brands in professional services categories where earned media and AI citation authority need to be built in parallel. Headquartered: New York, NY

Single Grain

Single Grain has published extensively on Generative Engine Optimization, positioning themselves as GEO thought leaders. Their content emphasizes that companies implementing GEO strategies achieve higher brand authority scores. They combine content strategy with technical AI optimization and have been ahead of many agencies in publicly documenting what GEO requires. Revv Growth

Single Grain is a good option for growth-stage businesses that want an agency with documented GEO thinking and a content-forward approach to building AI search visibility.

Best for: Growth-stage and mid-market companies wanting a content and GEO program from an agency with public thought leadership credentials. Headquartered: Los Angeles, CA

Graphite

Graphite is an AI-powered growth and SEO agency specializing in driving measurable visibility across both traditional and generative search. The agency focuses on the intersection of SEO, content strategy, and Answer Engine Optimization, helping brands gain presence not just on Google but within emerging AI platforms like ChatGPT, Perplexity, and Gemini. Thrive Agency

Graphite has built a reputation for data-driven AI search work with documented client outcomes and a methodology that treats AEO and traditional SEO as an integrated program rather than separate services.

Best for: B2B SaaS and technology companies wanting a data-driven, integrated SEO and AEO program.Headquartered: San Francisco, CA

Vertical and Specialty Specialists

Rankings.io

Rankings.io is a specialized SEO agency focusing on enhancing online visibility and search optimization for law firms. Positive feedback dominates their reviews, with 90 percent highlighting their effective communication, responsiveness, and ability to deliver on-time results. Approximately 70 percent of reviewers praise their expertise in legal SEO and consistent delivery of increased website traffic and lead quality. They demonstrate extensive expertise in the legal sector, particularly in personal injury and criminal defense law. Genix Digital

If you are a law firm, Rankings.io is the reference agency. Their vertical specialization produces a depth of legal SEO expertise that generalist agencies cannot match.

Best for: Personal injury, criminal defense, and litigation law firms. Headquartered: Chicago, IL

SmartSites

SmartSites is a full-service digital agency specializing in SEO, PPC, and web design. With deep experience across industries, they are known for helping small to mid-size businesses scale visibility and leads through technical optimization and local SEO. Bol-agency

SmartSites consistently appears on best-agency lists for small and mid-size businesses specifically. Their accessible pricing and full-service model make them a practical option for businesses that are not yet at the scale where they need an enterprise specialist.

Best for: Small and mid-size businesses wanting accessible full-service SEO and digital marketing. Headquartered:Paramus, NJ

Funnel Boost Media

Funnel Boost Media focuses on local and regional SEO campaigns. They are especially skilled at helping service-based and franchise businesses dominate competitive local markets through organic visibility and conversion-focused web design. ATAK Interactive

Best for: Service-based local businesses and franchises in competitive geographic markets. Headquartered: San Antonio, TX

And One More to Consider: Ritner Digital

We have written this roundup honestly. Every agency listed above is legitimately worth evaluating based on your specific situation. And we would not be doing our job as an SEO and AI search agency if we did not make the case for including us in your evaluation.

Here is what distinguishes us from the agencies above — not as a judgment of their quality, but as an honest description of what we are and how we work.

We build in public. We launched our own blog on January 22, 2026, on a brand new domain with zero history and zero authority. We have published our own Search Console data publicly — 89 rows of daily data, every metric graded, every uncomfortable number included. We publish monthly benchmark reports that include client site data alongside our own, because we believe transparency is the only honest way to sell SEO and AI search services. No agency in the US that we are aware of is doing this at this level of granularity.

We specialize in the integrated SEO and AI search program. Our work covers the full stack: technical SEO foundation, entity authority building, topical content architecture, GEO and AEO optimization, local SEO for geographic markets, and the measurement infrastructure that tracks visibility across both traditional and AI search surfaces. As we have written about extensively, these three disciplines need to be integrated, not run as separate programs.

We document our methodology publicly. The depth of content we have published — on enterprise SEO alignment, crawl budget, keyword architecture, entity authority, SEO competitive moats, and SEO reporting — is itself a demonstration of the topical depth and entity authority we build for clients. We are not claiming expertise in AI search. We are documenting it.

We work with businesses that value honesty over highlight reels. We are not the right agency for every business — no agency is. We are the right agency for businesses that want a partner who shows them the real data, explains what it means, connects the work to revenue, and does not hide behind aggregate metrics when results are complicated. If that sounds like the kind of relationship you are looking for, the conversation worth having starts here.

Headquartered: Philadelphia, PA (serving clients nationally)

How to Choose the Right Agency for Your Situation

The right agency depends on factors specific to your business. A few decision frameworks worth applying before you make contact with anyone on this list.

By size and budget. Small businesses under five thousand dollars per month in available SEO budget are generally better served by SmartSites, Funnel Boost Media, or a strong local agency in their market than by the larger enterprise-focused firms. Mid-market businesses from five thousand to fifteen thousand dollars per month have the widest range of quality options. Enterprise programs above fifteen thousand dollars per month should be evaluating Thrive, WebFX, Silverback, iPullRank, and Victorious alongside boutique specialists.

By primary need. If your primary need is AI search citation visibility and GEO — your brand is not appearing in ChatGPT and Perplexity for your most important commercial queries — First Page Sage, iPullRank, Genevate, and Ritner Digital are the firms most explicitly built for that problem. If your primary need is traditional organic growth and technical SEO, WebFX, Victorious, and HigherVisibility are well-documented options. If you need both integrated, look for agencies that can demonstrate AI citation results alongside traditional organic results.

By vertical. Rankings.io for law firms. Thrive and WebFX for e-commerce. First Page Sage and Graphite for B2B SaaS. Ritner Digital for businesses wanting SEO and AI search integrated with transparent public reporting. Vertical specialization is not always necessary but tends to produce better results in highly competitive or regulated categories.

By evidence standard. Ask every agency on this list — including us — to show you AI citation evidence for current clients, not just keyword rankings and traffic reports. Ask how they measure AI visibility as an ongoing metric. Ask how they connect the SEO program to revenue contribution. The agencies that can answer those questions with specific, documented evidence are the ones worth evaluating further.

Ready to explore whether Ritner Digital is the right fit for your business? Start the conversation. →

Sources cited in this piece:

Frequently Asked Questions

How do I know if an agency actually does GEO and AI search optimization or is just using the terminology?

Ask for documented evidence before you make any commitment. Specifically: can they show you where a current client's brand appears in ChatGPT, Perplexity, or Google AI Overviews for commercial queries in that client's category — not branded queries, but category queries? Can they show you how that citation frequency has changed over time as a result of their work? Do they track AI visibility as a regular metric with a defined methodology, or through occasional manual checks? An agency with genuine GEO capability can answer all three questions with specific examples. An agency that has added GEO to its service page without changing its methodology can answer none of them with specifics. The screening takes about ten minutes and eliminates most of the noise in the market.

What is the difference between hiring a large agency like WebFX versus a boutique firm like Ritner Digital?

Scale, structure, and relationship model. A large agency like WebFX brings deep resources, established processes for many client types, and the infrastructure to manage complex multi-channel programs across dozens of team members. A boutique firm brings closer access to senior practitioners, more flexibility in how the engagement is structured, and often more willingness to work in a genuinely transparent and iterative way. The right choice depends on what your business needs. If you need a large team managing multiple channels simultaneously and you value the stability of a long-established operation, a larger agency is the right fit. If you need direct access to the people doing the strategic work, transparent reporting including the uncomfortable data points, and a partner willing to show you their own results alongside yours, a boutique specialist is often the better answer. There is no universal answer — the right agency is the one that aligns with how you want to work and what problem you are actually trying to solve.

Should I hire an agency that specializes only in SEO or one that offers full-service digital marketing?

It depends on where your primary performance gap is and how you want to manage vendor relationships. An SEO-only agency like Victorious or First Page Sage brings deeper organic search expertise than a generalist agency that treats SEO as one of ten services. The tradeoff is that you will need separate partners or in-house capability for paid media, social, web design, and other channels. A full-service agency like WebFX or Thrive simplifies vendor management and can coordinate across channels, but SEO may not receive the same depth of attention as it would at a specialist. For most businesses, the practical answer is to identify which channel is most critical to your growth and prioritize expertise in that channel over convenience of consolidation. If organic search and AI search visibility are your primary levers, hire a specialist.

How much should I expect to pay for a quality SEO and AI search program in 2026?

Most ongoing SEO and AI search programs for small to mid-sized businesses range from fifteen hundred to five thousand dollars per month. Mid-market programs with more competitive markets, larger content requirements, or multi-location complexity typically range from five thousand to fifteen thousand dollars per month. Enterprise programs — large sites, highly competitive categories, complex technical environments — range from fifteen thousand to well above that monthly. One-time technical audits and project-based work typically range from five thousand to thirty thousand dollars depending on scope. The agencies that publish their pricing publicly are the exception rather than the rule — most require a discovery conversation before quoting because the scope genuinely varies. Be skeptical of agencies quoting very low prices for competitive markets without explaining how they will produce results at that investment level, and equally skeptical of agencies who cannot articulate what the investment buys in specific deliverables and measurement frameworks.

Why do so many agency roundup lists include the agency that wrote the list?

Because most roundup lists are marketing content, and including yourself is a standard practice in the industry. We have done it here and we have been transparent about it. The honest way to evaluate a self-compiled list is to check whether the inclusion criteria are explained, whether the evidence cited for each agency is verified and sourced, and whether the self-inclusion is disclosed rather than buried. On this list, we have disclosed it explicitly, sourced every other agency from independent third-party rankings, and described what we believe makes us worth considering alongside agencies with longer track records. You should weight our self-description accordingly — we are obviously not neutral — and apply the same screening questions to us that we recommend applying to every other agency on the list.

Is it better to hire an agency that specializes in my industry or one with broader expertise?

Industry specialization generally produces faster results in categories where buyer behavior, regulatory context, or competitive dynamics are distinctive enough that generic approaches consistently underperform. Law firms are the clearest example — Rankings.io's legal specialization produces a depth of understanding about search behavior in legal categories that a generalist agency serving fifty industries cannot replicate. Healthcare, financial services, and e-commerce are similar. For most other categories — B2B services, technology, professional services, local businesses — broad expertise combined with genuine curiosity about your specific market tends to be sufficient and sometimes better, because specialists can become formulaic. The question to ask is whether the category you operate in is distinctive enough that a non-specialist would need six months of learning before adding real value. If yes, find a specialist. If no, prioritize evidence of results over category matching.

How long should I expect to work with an SEO agency before evaluating whether it is working?

Twelve months is the minimum reasonable evaluation window for an organic search and AI visibility program, and eighteen to twenty-four months is where the compounding value of SEO investment becomes most visible. Within the first three to six months, a good agency should be making measurable technical improvements, publishing content, and beginning to show movement on commercial intent queries. Within six to twelve months, ranking improvements on target pages and early AI citation appearances should be visible. Within twelve to twenty-four months, organic pipeline contribution should be measurable and the investment should be generating net-positive returns. Agencies that promise meaningful ranking and revenue results within ninety days are either targeting very low-competition markets or overpromising. Agencies that cannot show any measurable progress within six months should be asked hard questions about what specifically has been delivered and why it has not produced observable results.

What should an agency's first ninety days look like regardless of which firm I hire?

A technical audit that produces a documented list of specific issues with clear prioritization by revenue impact. A competitive analysis of who is currently winning traditional rankings and AI citations for your most important commercial queries. A keyword and topic architecture review that maps your existing content against search intent and identifies structural problems and gaps. A baseline AI visibility report that documents where your brand currently stands in ChatGPT, Perplexity, and Google AI Overviews for your target queries. And a clear roadmap with specific deliverables, a timeline, and defined success metrics for the first twelve months. An agency that delivers a strong audit and baseline in the first ninety days is demonstrating the analytical foundation that everything else depends on. An agency that delivers a generic strategy deck and a content calendar without the audit and baseline first is showing you that their process is template-based rather than built around your specific situation.

Can I work with a US-based agency if my business operates in multiple countries?

Yes, and many of the agencies on this list — including WebFX, Ignite Visibility, and Thrive — have documented international SEO experience including hreflang implementation, country-specific content strategies, and multilingual search optimization. The specific capability to ask about for multi-country programs is not just whether the agency has done international work but whether they have experience with the specific search markets you operate in. US SEO expertise does not automatically translate to deep knowledge of UK, Australian, Canadian, or other English-language search markets — let alone non-English markets — because competitive dynamics, Google behavior, and buyer search patterns differ by region. If your international revenue is significant enough to require serious optimization, ask specifically about the agency's results in those markets before assuming their US expertise transfers.

How do I evaluate the AI search capability of an agency I have not worked with before?

Three practical tests. First, Google the agency itself and see whether it appears in AI-generated answers for relevant queries — an agency claiming GEO expertise that does not appear in AI-generated answers for searches about their own category has not applied their methodology to their own brand, which is a meaningful signal. Second, ask them to run the ten-minute AI test on your category — take your five most important commercial queries and show you in real time which brands appear in ChatGPT, Perplexity, and Google AI Overviews, then explain specifically what they would do to change those results for your brand. An agency that cannot do this fluently without preparation is not genuinely practiced in AI search optimization. Third, ask for a case study where they can show before and after AI citation data for a client — not traffic reports, not keyword rankings, but documented AI citation frequency at the beginning and end of a specific engagement period. These three tests together give you a practical picture of genuine versus claimed capability.

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