Best GEO Agencies in 2026

Siege Media's GEO practice analyses prompt and citation data to find where a brand is missing from AI answers, then produces content and coverage to close those gaps. It reports 46.5K LLM citations for Instacart, and CEO Ross Hudgens wrote a book on generative engine optimization for Wiley. In-house tools such as BlueprintIQ and DataFlywheel guide what to create and refresh, and clients include Zapier, Zendesk and Asana.

UltraGrowthMedia's GEO service is built around getting a brand cited in ChatGPT, Gemini, Perplexity and Google AI Overviews: entity work, schema markup, third-party citation building and answer-style content. It runs alongside SEO, cold email and LinkedIn outbound, so a buyer who finds you in an AI answer can be followed up the same week. Founded in 2022 by Tushar Dey, the 27-person remote team works in weekly sprints, clients talk directly to the practitioners doing the work, and progress shows up on live reporting dashboards. Retainers start at $3,500 a month.

Victorious added answer engine optimisation to its SEO-only menu and treats entity development, technical health, content and links as one system for Google and AI assistants. It targets visibility in ChatGPT, Perplexity, Gemini, Copilot, Claude and Google AI Overviews, and publishes research on how AI Overviews and AI Mode cite domains. It reports working with more than 1,050 brands and holds a 4.8 rating from 70 reviews.

First Page Sage, founded by Evan Bailyn in 2009, sells its thought leadership content programme as GEO, aiming to shape the recommendations ChatGPT and other platforms make in considered B2B purchases. Each account gets a strategist, writers, an editor, designers and a reporting specialist, producing 6 to 10 long-form pages a month. Clients include Salesforce, Logitech, Verizon and U.S. Bank, and it sets up tracking and attribution to tie leads back to content.

Terakeet now presents itself as a reputation management firm protecting how brands and executives appear in organic search and AI chat. Its Generative AI Optimization service tracks what ChatGPT, Gemini, Perplexity and Google AI Mode say about a brand and works to shift it, backed by patented technology and a Brand Intel Report entry point. Founded in 2001 by Mac Cummings and Patrick Danial, it works mainly with regulated enterprises in finance and insurance.

SimpleTiger works only with software and AI companies and runs a dedicated answer engine optimisation practice that tracks a client's visibility, ranking and sentiment across ChatGPT, Perplexity, Claude, Gemini and Google AI Overviews. That sits inside its Pipeline Engine model alongside SEO, link building, PPC and attribution. It reports 75,000 newly ranking keywords in a year for Gelato and names Segment, Gainsight and Jotform among clients.

DerivateX is a Bengaluru agency formed in 2024 for B2B SaaS companies with roughly $5M to $50M in ARR. It tracks how often a brand is cited by ChatGPT, Perplexity, Gemini and Claude, then improves entity signals and off-site mentions. Retainers are published at $5,000, $8,000 and $12,000 a month, with 90-day pilots on the lower two. It reports Gumlet now attributes 20% of direct inbound revenue to LLM referrals, and holds 5.0 from seven Clutch reviews.

AdLift is a self-funded search agency, operating since 2009, with more than 100 people in Gurugram and a legal headquarters in California. It built Tesseract, a platform that tracks how often a brand is mentioned in ChatGPT, Gemini, Perplexity, Claude and other assistants, alongside ContentLift for link acquisition. Clients named on its site and Clutch profile include PayPal, Walmart, Shopify, Airbnb and Schneider Electric.

Kaizen pairs its digital PR engine with a GEO service aimed at getting brands cited by ChatGPT and similar tools, plus social search on TikTok and Instagram. It reports a 942% rise in LLM-referred traffic for Mogo Farm, and its consumer client list includes The LEGO Group, adidas, Moonpig and SumUp. CEO Kristi Hoyle was appointed to lead an AI-focused strategy, and the agency publishes 2026 guides on Reddit and zero-click search.

Reboot Online sells GEO and a trademarked AiPR product designed to improve how brands surface in AI-generated answers, built on its digital PR and link building desk. The remote team of around 80 includes data scientists, and it publishes controlled SEO experiments. Clients include uSwitch, Confused.com, money.co.uk and Forbes Advisor, competitive categories where AI assistants increasingly answer comparison questions.

Prosperity Media has built a GEO offer aimed at citations in ChatGPT, Gemini and Google's AI results, and publishes original research, including an analysis of which sources LLMs cite for Australian queries and monthly AI search news roundups. The Surry Hills team of around 35 also hosts the Sydney SEO Conference. Named clients include IAG, St George, Danone and HealthEngine, and Clutch reviewers praise its transparency and content quality.

Infidigit rebuilt its pitch over the past two years around AI search, selling GEO and LLM optimisation alongside classic rankings for large Indian brands. Its Infigrowth platform includes LLM monitoring, and it reports a 14x rise in sessions from AI platforms for Flipkart Seller Hub. Founder Kaushal Thakkar ran SEO at Myntra, and the agency was named Agency of the Year at the Digital Dragon and mCube awards in 2026.

Internet República is a Madrid agency founded in 2011 by Ismael El-Qudsi, previously at Bing Spain and Havas Digital, with a Miami office for US and Latin American work. Its newest line positions brands to be cited by ChatGPT, Gemini and Perplexity, backed by a public GEO glossary. SEO case studies cover Mapfre, Vodafone, Openbank and Barceló, and Clutch lists a $25 to $49 hourly band.

Semetrical is a London SEO and data consultancy founded in 2013 that runs GEO alongside technical SEO, predictive analytics and custom AI tools and agents. Its founders built the crawler originally called Deepcrawl, now Lumar, so crawl access and measurement are core strengths. Client logos include Stripe, Cloudflare, Ticketmaster and The Independent, and Clutch shows a $5,000 minimum with $100 to $149 hourly rates.

Re:signal has added an AI search practice covering GEO, answer engines and agentic commerce to its ecommerce SEO, retail search and digital PR work. That matters for retailers whose products now appear in AI shopping answers. Its clients include ASICS, where it reports a twentyfold organic revenue rise, Under Armour and N Brown, and it runs Re:commerce, a conference on ecommerce search.