AI-powered search is rewriting the rules of visibility. Google’s AI Overviews now appear above traditional results. Tools like ChatGPT, Gemini, and Perplexity are answering complex buyer questions directly in their interfaces.

For B2B companies, that means the old SEO playbook isn’t enough. To capture demand, your content and website need to be optimized for Generative Engine Optimization (GEO)—ensuring AI systems can find, trust, and feature your brand in their answers.

Here are eight of the best GEO agencies helping businesses win visibility in 2025, along with a description of the methodology for how the list was built:

Methodology

The companies below were selected based upon a combination of factors, including:

  • Experience working with B2B companies, and a history of delivering positive business results

  • Offering of a specific AI search service within their full package of services

  • Frequency and quality of mentions in authoritative reference points, such as industry-recognized websites, user generated content platforms like Reddit, and review websites

  • Boasting unique strengths and buyer profiles relative other companies on the list

1. Mark Sourced

Mark Sourced offers the options of engaging them as a consultancy and/or an agency in that they can advise on GEO best practices or help you build the content you need to succeed in GEO. Founded by Dan Payne, a veteran B2B demand gen marketer, the agency focuses on capturing bottom-of-funnel demand in AI search.

Unlike larger agencies, Mark Sourced provides hands-on execution and custom playbooks that B2B marketers can implement immediately to win pipeline from AI search.

Best for: B2B companies seeking a nimble, AI-first agency partner laser-focused on demand capture.

2. Siege Media

Siege Media has long been a top creative SEO agency and has pivoted quickly to GEO. Their specialty lies in producing design-rich, semantically structured content that generative engines prefer to pull into summaries.

They bring a unique blend of storytelling and technical optimization, making them a strong fit for B2B brands that want content to drive both clicks and citations in AI systems.

Best for: Companies seeking premium content engineered for inclusion in AI-driven results.

3. First Page Sage

Often cited as a pioneer in GEO, First Page Sage offers structured, scalable programs for enterprise clients. Their frameworks emphasize authority, reputation management, and technical precision, ensuring visibility across both Google AI Overviews and chatbot responses.

They’ve developed a repeatable GEO methodology that’s proven effective in competitive B2B categories.

Best for: Enterprises needing a systematized, large-scale GEO program.

4. Go Fish Digital

Go Fish Digital brings a data-science mindset to GEO. They study patents, test AI retrieval behaviors, and build proprietary dashboards to measure content performance in AI-generated results.

Their technical and experimental approach makes them ideal for businesses that want a measurable, research-backed GEO strategy.

Best for: Companies that value evidence-driven SEO and advanced tooling for AI visibility.

5. Titan Growth

Titan Growth leverages its proprietary TitanBOT technology to simulate how AI systems crawl and interpret content. This gives clients a predictive edge in optimizing for generative search.

For B2B firms with complex sites, Titan Growth combines technical SEO with structured content strategies to help them appear in AI engines at scale.

Best for: Enterprise companies that want a technology-enhanced, technical-first GEO partner.

6. Ignite Visibility

Ignite Visibility is one of the most established SEO agencies in the US and has added GEO services to its portfolio. Their focus includes entity optimization, structured data, and schema—the building blocks that AI systems rely on to validate credibility.

They also provide education and training alongside execution, making them a good fit for companies building in-house GEO knowledge.

Best for: B2B organizations that want both implementation and knowledge transfer from a seasoned team.

7. NoGood

NoGood positions itself as a growth marketing agency with GEO at the center of its acquisition strategy. They integrate content, CRO, and paid programs with generative engine optimization, ensuring that AI visibility drives measurable revenue outcomes.

They’re especially strong in working with SaaS and tech scale-ups that need speed and adaptability.

Best for: Fast-growing B2B SaaS firms that want GEO tied directly to pipeline.

8. Orainti

Orainti is a boutique GEO agency known for personalized, high-touch programs. Their team adapts strategies to niche industries and international markets, making them particularly effective for companies with complex global footprints.

Their agility allows for faster iteration compared to larger agencies.

Best for: Companies seeking a boutique GEO partner for niche or global markets.

Final Thoughts

Generative Engine Optimization is no longer a future trend—it’s a present necessity. Buyers are making decisions inside AI search engines, not just Google’s organic results.

The eight agencies above are helping companies adapt to this new reality—bringing technical precision, creative content, and demand-focused strategies to ensure brands show up where buyers are searching in 2025.