Strategy

6 best generative engine optimization (GEO) agencies for B2B to grow AI visibility in 2026

By
Claudia Bird
Published on
May 17, 2026
TL;DR: This unranked list covers six of the best B2B generative engine optimization (GEO) agencies—Siege Media, Grizzle, Omniscient Digital, Foundation, Spicy Margarita, and Obility. The right fit depends on your growth stage, current authority level, and goals.
TL;DR: This unranked list covers six of the best B2B generative engine optimization (GEO) agencies—Siege Media, Grizzle, Omniscient Digital, Foundation, Spicy Margarita, and Obility. The right fit depends on your growth stage, current authority level, and goals.

94% of buyers use LLMs during their journey.

Google is still an effective channel. But when studies suggest that AI search traffic converts 5x more (14.2% vs. 2.8%), the right partner can help you leverage GEO.

This list will help you find the right agency based on your growth stage and goals.

How we curated this list

Grizzle has worked in B2B SEO since 2016. Every agency we’ve included is a direct competitor, all evolving a craft we understand deeply.

Because most effective GEO tactics are rooted in solid SEO fundamentals: building topical authority, earning high-quality brand mentions, and producing expert-led content that earns trust.

Every agency on this list was selected against four criteria:

  • GEO, answer engine optimization (AEO), or AI SEO services
  • A primarily B2B client base
  • Evidence of actual AI search results rather than repositioned SEO outcomes
  • Active experimentation in the space
Note: As GEO is constantly evolving, best practices do, too. When LLM experts can’t tell us how the technology makes basic decisions, anyone claiming absolute certainty in this space is overselling.

Who are the best GEO agencies for B2B in 2026?

These six agencies are experts in B2B SEO. Here’s what they now offer for GEO:

Best GEO agency for B2B What they offer
Siege Media Data journalism, proprietary tech, and digital PR that earns citations in AI engines
Grizzle Organic growth engines that drive citations and mentions across AI-powered and traditional search
Omniscient Digital Topical authority and semantic content systems that connect AI search visibility directly to B2B pipeline
Foundation Research-led, distribution-first content engineered to surface across LLMs, Reddit, and social
Spicy Margarita AEO programs to get B2B companies recommended inside high-intent AI answers
Obility Full-coverage GEO, with schema implementation, conversational content, and AI monitoring

1. Siege Media

Siege Media is a full-service GEO agency that helps brands win visibility across both Google and AI-powered discovery.

Siege Media full-service GEO agency homepage

Siege has spent over a decade building content programs for scaling brands.

The agency’s focus on data journalism provides clients with unique, first-party insights that can lead to an 83% increase in traffic value

Siege’s approach to AI search is underpinned by two proprietary tools.

  • BlueprintIQ: audits content against live results in ChatGPT, Gemini, and Perplexity to flag topical and entity gaps
  • DataFlywheel: keeps content fresh and authoritative by refreshing 20–60 assets per quarter

Founder Ross Hudgens has even written a book on GEO, due to be published in November 2026.

Clients include HubSpot, Zapier, Asana, and Zoom.

Siege Media’s key capabilities:

  • Full-service GEO. A dedicated GEO playbook backed by BlueprintIQ and DataFlywheel, focused on earning LLM citations through authoritative content.
  • Content strategy and creation. Data journalism and buyer intent research combined into programs that perform across traditional search and AI-generated answers.
  • Digital PR and link building. High-authority placements and brand mentions that drive domain credibility and LLM citation frequency.
  • Technical SEO. Schema markup, crawlability, and site architecture improvements to ensure AI systems can access and correctly interpret content.
  • Content optimization and freshness. Quarterly asset refreshes via DataFlywheel to keep content competitive in both AI and Google over time.
  • UX and web design. Content-led design built for readability, engagement, and conversions.

2. Grizzle

Grizzle is a B2B organic growth agency that builds high-performing GEO, SEO, and content engines.

Grizzle B2B organic growth and GEO agency homepage

The team’s multi-channel approach means content always aligns with buyer intent across LLMs, traditional search, and the platforms your customers use to find your products and solutions.

Three GEO strategies work in tandem:

  • Every asset produced strengthens authority signals that LLMs rely on when deciding what to surface and cite
  • Compounding distribution drives brand mentions and digital PR placements that generate pipeline for SaaS companies
  • A dedicated R&D motion means we continuously run GEO experiments and feed results directly back into your strategy

For example, this video marketing agency guide hit the #1 position in SERPs with mentions and citations in high-intent AI Overviews and ChatGPT prompts in only four days:

Google SERPs Grizzle mentioned and cited in AI Overviews

Clients include Pipedrive, Semrush, Tide, and Tipalti.

Grizzle’s key capabilities:

  • SEO and GEO strategy. Multi-channel organic roadmaps built around buyer intent, category positioning, and modern discovery across Google and AI search.
  • Content production. Expert-led editorial and video content that establishes category authority and is engineered for AI citability alongside traditional search performance.
  • Compounding distribution. Mention generation, digital PR, and end-to-end distribution that strengthen the authority signals search engines and LLMs rely on.
  • Digital PR. Original research and data-driven assets that help B2B brands secure features in leading industry publications to increase overall brand awareness.
  • Content performance optimization. Systematic improvement of existing assets for on-page SEO and AI visibility to increase conversions.
  • Translation and localization. Market expansion support for B2B brands scaling organic and AI search presence into new regions and languages.

3. Omniscient Digital

Omniscient Digital is an organic growth agency that helps B2B software companies build visibility and pipeline across Google and AI-generated answers.

Omniscient Digital B2B organic growth agency homepage

The founders apply their expertise from HubSpot, Shopify, and Workato to create a research process that weaves LLM visibility indexing and citation analysis alongside SEO foundations.

Omniscient’s GEO practice is based on four principles:

  • Producing content that’s grounded in real expertise and original research
  • Building author and brand entity authority that LLMs recognize and trust
  • Citation engineering through PR, thought leadership, and structured data
  • Technical optimization to ensure fast, crawlable content that’s semantically marked up for machine readability

A partnership with Peec AI gives clients ongoing monitoring of LLM mentions and visibility as part of every engagement.

Clients include Hotjar, Smartling, 360Learning, and Loom.

Omniscient Digital’s key capabilities:

  • Organic growth blueprint. Buyer and channel research to generate a content roadmap alongside technical analysis and an AI search strategy.
  • Peec AI partnership. Visibility indexing, citation analysis, and ongoing monitoring to ensure clients appear across popular LLMs.
  • Programmatic SEO. High-velocity page production for tech companies targeting large keyword sets at scale.
  • Technical SEO. Ensuring site architecture, crawlability, and indexation improvements underpin both traditional and AI search performance.
  • Link building and digital PR. Targeted backlink acquisition and brand mentions in high-value publications to feed LLM citation frequency.
  • Digital marketing analytics. Custom reporting that connects organic and AI search performance directly to pipeline and revenue.

4. Foundation

Foundation is a distribution-first B2B content and GEO agency that helps brands show up across multi-channel search experiences.

Foundation B2B content and GEO agency homepage

Foundation’s GEO practice is built on founder Ross Simmonds’ distribution-first philosophy that underpins everything—content only creates value if it reaches the right places.

A deep discovery phase begins with competitor audits, AI platform analysis, and stakeholder interviews.

Then, the team moves into content development structured specifically for how AI engines interpret and rank information.

Foundation also tracks weekly performance metrics and continuously refines strategy as AI algorithms evolve, with a particular focus on Reddit.

(The agency’s original research found it accounts for 21% of AI citations for key B2B SaaS prompts.)

Clients include Canva, Bitly, Webex, and Mailchimp.

Foundation’s key capabilities:

  • GEO analysis and strategy. Existing content audits for AI compatibility, semantic richness, and natural language processing, followed by a tailored strategy.
  • Content development. Authoritative articles, first-party data, and multimedia content developed around traditional search intent and AI-friendly formats.
  • AI-focused distribution. Ongoing distribution across LinkedIn, Reddit, YouTube, email, and partner ecosystems as AI algorithms evolve.
  • Reddit strategy. A proprietary playbook for building brand presence on one of the top cited sources across ChatGPT and Perplexity for B2B SaaS prompts.
  • Link building and digital PR. Outreach and backlink acquisition grounded in original research and data-driven assets.
  • Performance optimization and reporting. Weekly tracking of engagement, visibility, and conversion metrics with ongoing tweaks.

5. Spicy Margarita

Spicy Margarita is an SEO and AEO agency that builds search-first growth engines for B2B brands.

Spicy Margarita SEO and AEO agency homepage

Spicy Margarita is intentionally boutique. The agency never takes on more than 10 clients at a time, meaning every account gets senior-level attention throughout.

The “AEO manifesto” is built around a clear philosophy: visibility without sales outcomes is worthless.

Every strategy, piece of content, and backlink works to move buyers from awareness to closed-won.

Spicy Margarita is particularly strong on brand control, actively monitoring and correcting how AI tools describe clients during the research phase.

Clients include Rillion, Givebutter, Jabra, and Piktochart.

Spicy Margarita’s key capabilities:

  • AEO and AI search strategy. Growth-driven roadmaps built around making clients the answer to high-intent buyer questions across LLMs.
  • Brand control. Monitoring and correcting how AI tools describe and represent clients during the buyer research phase.
  • AI citation placements. Outreach to secure client brands in roundup lists and publications that AI systems draw from when generating recommendations.
  • Content marketing strategy and creation. Authoritative, on-brand content produced by senior strategists and writers.
  • Link building and brand mentions. High-authority backlink campaigns in highly cited, widely visited sources that compound AI and organic visibility over time.
  • Search everywhere optimization. Visibility building across Reddit, YouTube, and social—the platforms AI systems learn from and increasingly reference for answers.

6. Obility

Obility is a digital marketing agency that helps B2B and tech teams show up on the AI platforms where buyers search.

Obility B2B digital marketing agency homepage

With deep specialization across SaaS, DevOps, cybersecurity, martech, and healthtech, Obility understands complex buying journeys and long sales cycles.

The agency’s full-coverage GEO approach spans AI search monitoring to benchmark current presence, brand-mention building, and even an organic Reddit strategy.

All aligned with the moments that actually shape your B2B customers’ purchasing decisions.

By tracking competitor presence in LLMs and AI Overviews as part of their standard service, Oblity turns visibility gaps into strategic opportunities.

Clients include Boomi, Fastly, Autodesk, and Hitachi Vantra.

Obility’s key capabilities:

  • AI search monitoring. Tracking client and competitor presence across multiple LLMs, AI Overviews, and Reddit to identify gaps and opportunities.
  • AI Overview optimization. Strategic recommendations to improve how often you appear in AIO and LLM-generated answers.
  • Brand mentions for LLM visibility. Building brand presence across the third-party sources LLMs trust when compiling answers.
  • Reddit organic strategy. Content and presence building for B2B research and vendor discovery queries.
  • GEO and SEO content creation. Assets made to perform across SERPs, AI Overviews, and generative engines simultaneously.
  • Demand generation integration. GEO woven directly into broader B2B demand gen programs, with attribution tracking that connects AI visibility to pipeline and revenue.

How do I choose the right GEO agency for my B2B company?

The right GEO agency has real methodology, measurable results, and the honesty to tell you what they don’t know yet.

GEO is still an emerging discipline, and most agencies are figuring it out in real time. The good ones will admit to that.

You’re really trying to weed out the companies that have zero proof of success or have repackaged existing services with a new acronym. (None on this list have.)

These five questions will help you spot the difference and determine what you need:

GEO agency question Why it’s important
Do you need GEO right now, or SEO first? GEO works best when there’s an existing foundation to build on.

If your site has thin content, weak domain authority, or no established topical coverage, you need to address these issues with solid SEO first.

Be honest about where you are. Every agency on this list will lead you in the right direction.
Are you optimizing for brand visibility or pipeline? Some GEO agencies focus on citation volume and share of voice in AI answers.

This is useful for brand awareness, but harder to tie to revenue.

Others connect AI search directly to MQLs, demos, and closed business.

Know which outcome you want before you get on a call, and push any agency you evaluate to explain how they measure it.
How experimental is the agency’s approach? The agencies making real progress in GEO are the ones running weekly tests and updating their playbooks as AI platforms change citation behavior.

Ask what they’ve tested recently and what didn’t work.

Confidence without curiosity is a red flag in a field this new.
What’s the realistic timeline for your situation? The brands showing up consistently in AI answers in 2026 started building authority and citation signals well before it mattered.

Unlike the reasonably predictable timelines of SEO, GEO outcomes depend heavily on your existing authority.

A good agency will give you an honest assessment of your starting point.
Does the agency specifically handle B2B buying journeys? B2B buyers use AI tools to research vendors, compare solutions, and build business cases across weeks or months.

An agency that understands that dynamic will build GEO programs around the questions your buyers are actually asking.

Ask to see examples of how they’ve approached different B2B buying stages in their GEO work.

GEO agency FAQs

What does a GEO agency actually do?

A GEO agency helps your brand get cited, recommended, and surfaced in AI-generated answers across tools like ChatGPT, Perplexity, and Google AI Overviews.

That involves producing source-worthy content, building the authority signals LLMs rely on, optimizing site structure for machine readability, and tracking how your brand appears over time.

What’s the difference between GEO, AEO, and AI SEO?

You can get super nuanced. But most companies use these acronyms as largely interchangeable terms for the same discipline: optimizing for visibility in AI-generated answers rather than just traditional SERPs.

GEO (Generative Engine Optimization) and AEO (Answer Engine Optimization) are the most commonly used. AI SEO is broader.

Don’t get too caught up in the terminology. What matters is whether the agency has a real methodology behind whichever label they use.

How long does GEO take to show results?

Brands with strong existing authority can start appearing in AI answers within weeks of targeted optimization.

If you’re starting from scratch, expect three to six months before meaningful traction.

The compounding nature of authority building means results tend to accelerate over time.

What’s the difference between a GEO agency and an SEO agency?

An SEO agency focuses on ranking in traditional search engines and driving organic traffic.

A GEO agency focuses on appearing in AI-generated answers, where an increasing share of B2B research now happens.

In 2026, the most effective agencies do both. They treat GEO as the natural next layer on top of a strong SEO foundation, not a separate workstream.

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