ChatGPT crossed 1 billion weekly active users in August 2026, up from 400 million just eighteen months earlier. That kind of growth makes it much more than a niche channel. For many buyers, the journey now starts with a question like, “What’s the best X for Y?” in ChatGPT before they ever search Google.
The problem is that many agencies selling “ChatGPT SEO” are still using familiar backlink and keyword strategies and simply giving them a new name. But getting your brand cited in a ChatGPT answer works differently, and understanding that difference matters when you are choosing an agency.
So, how do you know which agencies actually understand how ChatGPT search works? This guide breaks down the 7 Best ChatGPT SEO Agencies in USA to consider and the key things you should look at before signing a contract.
- TL;DR
- ChatGPT selects citations through a live retrieval pipeline, not a ranked index — it typically cites only 2 to 4 sources per answer, a fraction of what Perplexity shows, so competition for each slot is intense.
- Blocking GPTBot does not remove you from ChatGPT search; only blocking OAI-SearchBot does — a distinction most agencies don't test for before billing you.
- The seven agencies below range from technical specialists who fix crawler and rendering blockers to full-funnel partners who pair GEO with content and CRM.
- Brand citation rate on ChatGPT runs around 0.59% versus roughly 13% on Perplexity, so agencies chasing "AI visibility" broadly may not be optimizing for ChatGPT specifically.
- Pricing for specialized ChatGPT/GEO work runs from roughly $1,000/month for full-funnel retainers to well into five figures for enterprise technical engagements.
- Ask any agency to show you a specific page they got cited in a ChatGPT answer, not a screenshot of a brand mention.
What Actually Gets a Page Cited in ChatGPT
Before comparing agencies, it helps to understand what they are actually trying to improve. When ChatGPT searches the web, the model itself does not browse the internet. A separate retrieval tool searches for relevant pages, collects their content, and provides that information to the model to help build an answer.
Two OpenAI crawlers are especially important here, and confusing them can lead to the wrong SEO decisions:
- GPTBot collects data for model training. Blocking it opts your website out of training data collection, but it does not control whether your pages can appear in ChatGPT search results.
- OAI-SearchBot is the search crawler used to find content that can potentially appear as a cited source in ChatGPT answers. If you block it, your pages cannot be retrieved for ChatGPT search, regardless of how strong the content is.
Once a page passes this crawler stage, the focus shifts to the quality and usefulness of the information. ChatGPT does not simply look at PageRank, backlink counts, or domain authority scores.
It can favor clear, useful, self-contained information, such as comparison tables, direct answers, and factual passages, rather than content written mainly to increase keyword density.
That makes ChatGPT optimization different from traditional link-building SEO and helps explain why the agencies below focus on more than simply renaming old SEO services.
How We Selected These Agencies
- Documented, ChatGPT-specific methodology, not a generic “AI SEO” bolt-on
- Evidence of technical fluency with OAI-SearchBot, robots.txt configuration, and server-side rendering
- Verifiable client results or independent platform reviews (Clutch, G2, GoodFirms)
- Range of specialties, so the list actually helps you match an agency to your situation
- Transparency about pricing tier and ideal client profile
The 7 Best ChatGPT SEO Agencies in USA
1. Searchbloom — Best for Mid-Market to Enterprise Brands
Searchbloom is a Utah-based agency built on a no-contract, results-based retention model. Searchbloom developed the MERIT framework (Mentions, Evidence, Relevance, Inclusion, Transform) specifically for AI search optimization and runs it alongside a broader A.R.T. methodology covering authority, relevance, and technology
Key services: SEO, AI search/GEO, PPC, CRO
Best for: Mid-market to enterprise brands in ecommerce, B2B, healthcare, legal, and professional services
2. Qoulomb — Best for B2B Brands Wanting ChatGPT SEO Inside a Full-Funnel System
Qoulomb is a B2B-focused GEO and AI SEO agency serving venture-funded startups, mid-market companies, and enterprises across the US and other global markets.
Rather than treating ChatGPT visibility as a separate line item, Qoulomb integrates citation-focused content structure directly into the content marketing and SEO workstreams a client is already running, alongside outreach, CRM, and performance marketing.
Reported results: 37% more signups and 35% organic growth for Zinrelo, alongside significant traffic growth for a manufacturing brand across 250+ published pieces.
Key services: GEO & AI SEO, SEO, content marketing
Best for: B2B startups and mid-market brands that want ChatGPT and Google visibility managed as one system instead of two vendors
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3. 1Digital® — Best for eCommerce and AI-Powered Search
It’s an US-based eCommerce agency that combines traditional SEO with AI SEO, GEO, and ChatGPT-specific optimization. 1Digital® works across platforms including Shopify, WooCommerce, BigCommerce, and Magento, helping online brands improve visibility across Google, ChatGPT, Gemini, Perplexity, and other AI search surfaces.
Key services: eCommerce SEO, ChatGPT SEO, AI SEO/GEO, PPC, CRO, web design and development
Best for: eCommerce, D2C, B2C, Shopify, and online brands looking to combine traditional and AI search visibility
4. Lonely — Best for Technical GEO at Global Scale
Lonely is a Warsaw and US-based agency built around engineering-grade technical GEO. Onely runs competitive AI-gap analysis alongside technical audits, useful for brands whose content is fine but whose infrastructure is quietly blocking AI crawlers
Key services: Technical SEO audits, AI visibility monitoring, content creation for LLM citation
Best for: Global enterprises with indexation, internationalization, or ecommerce-scale technical debt
5. Thrive Internet Marketing Agency — Best for No-Contract Full-Service AI Search
It is an Arlington, Texas agency running an integrated ChatGPT SEO methodology backed by proprietary diagnostic tools (Thrive Score and Thrive Stats) and flexible month-to-month pricing, with reported internal AI-referral traffic growth in the thousands of percent. thriveagency
Key services: AI SEO/GEO, SEO, PPC, content marketing, online reputation management
Best for: Companies wanting full-service AI search optimization without a long-term contract
6. Foundation — Best for B2B SaaS Distribution-Led GEO
Foundation runs a distribution-led GEO approach for B2B tech and SaaS companies, pairing content production with the third-party distribution (Reddit, review sites, industry publications) that ChatGPT increasingly leans on as a trust signal when a brand’s own domain isn’t yet authoritative.
Key services: GEO content and distribution, SaaS content strategy
Best for: Early-to-mid-stage B2B SaaS companies that need third-party citations, not just owned-content optimization
7. Tenet — Best for D2C and eCommerce Brands
Tenet offers ChatGPT SEO and AI search optimization for brands across multiple industries, including eCommerce and D2C. Its approach covers content optimization, brand authority, citation building, technical SEO, structured data, and AI visibility across platforms such as ChatGPT and Google AI Overviews.
Key services: ChatGPT SEO, AI search optimization, technical SEO, content optimization, brand authority and citation building
Best for: D2C, eCommerce, consumer brands, SaaS, and businesses looking to build visibility across AI search platforms
Quick Comparison
Agency | Best For | ChatGPT / AI SEO Strength | Pricing |
Searchbloom | Mid-market to enterprise brands | MERIT framework, AI search optimization, and AI mention tracking | Custom, no contracts |
Qoulomb | B2B startups and mid-market brands | GEO and AI SEO integrated with content marketing, SEO, and broader marketing workflows | $12,000–$10,000/mo |
1Digital® | eCommerce, D2C, and B2C brands | eCommerce SEO combined with AI SEO, GEO, and ChatGPT optimization | Custom |
Lonely | Global enterprises | Technical GEO, AI-gap analysis, crawler and indexation-focused optimization | Custom |
Thrive Internet Marketing Agency | Full-service brands | ChatGPT SEO, AI SEO/GEO, AI visibility tools, and integrated digital marketing | Month-to-month |
Foundation | B2B SaaS companies | GEO content combined with third-party distribution and citation building | Custom |
Tenet | D2C and eCommerce brands | ChatGPT SEO, AI search optimization, citations, technical SEO, and brand authority | Custom |
Questions to Ask Before You Sign
- Can you show me a real page you got cited in a ChatGPT answer, not just a brand-mention screenshot?
- Do you check whether OAI-SearchBot can actually reach and render our pages, separately from GPTBot?
- How do you track brand visibility in ChatGPT specifically, versus AI search broadly?
- What’s your plan if ChatGPT re-ranks or changes its retrieval behavior mid-engagement?
- How does this work integrate with what we’re already doing for Google?
Red Flags to avoid
- Guarantees of a specific citation frequency or ranking in ChatGPT
- No real example of a client page ChatGPT has actually cited
- Treating GEO as an upsell rather than core strategy
- No mention of OAI-SearchBot, robots.txt, or crawlability at all in the pitch
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Final Thoughts
ChatGPT typically cites fewer sources in an answer than Perplexity, so getting mentioned in ChatGPT takes more than simply adding “AI SEO” to a traditional SEO package. Agencies need to understand how AI crawlers access content, how information is structured, and how third-party sources influence what AI platforms mention.
For businesses that want to improve ChatGPT visibility while also keeping their Google rankings, content, and reporting connected, Qoulomb offers an AI SEO and GEO approach that brings these areas together rather than treating AI search as a separate add-on.
Frequently Asked Questions (FAQs)
1. What's the difference between "AI SEO" and "ChatGPT SEO" specifically?
AI SEO broadly covers visibility across ChatGPT, Perplexity, Gemini, and Google AI Overviews. ChatGPT SEO is narrower: ChatGPT rewrites your question into its own set of search queries, runs them against Bing’s index plus its own OAI-SearchBot crawler, then cites only a handful of the results, a retrieval mechanism that behaves differently from how Perplexity or Google’s AI Overviews select sources.
2. Does blocking GPTBot hurt my ChatGPT SEO?
No. GPTBot is training-only; citation eligibility is controlled by OAI-SearchBot. You can block GPTBot to opt out of training while still allowing OAI-SearchBot for search visibility.
3. Do I need to rank well on Google to get cited by ChatGPT?
Not necessarily. Measured Bing alignment with ChatGPT citations fell from 26% to 8% over the past year, while Google alignment rose to 33%, and only about 10% of cited URLs come from Google’s own top 10 results, suggesting ChatGPT does substantial re-ranking of its own.
4. How much does a ChatGPT-focused SEO agency cost?
Full-funnel retainers that include GEO alongside content and SEO typically start around $1,000 to $10,000 a month. Technical-specialist engagements at firms doing deep crawler and rendering work run higher.
5. How long before I see results?
Most agencies report visibility changes within 3 to 6 months, though ChatGPT’s retrieval behavior is volatile enough that consistent month-over-month tracking matters more than a single snapshot.
6. Can results actually be measured?
Yes, though imperfectly. Agencies track citation frequency, brand mention rate, and share of voice against named competitors inside ChatGPT answers, using a mix of proprietary tools and manual prompt testing.