- Red-engage (ChatGPT Citations via Bing Index Plus Reddit Authority)
- iPullRank (Enterprise Technical ChatGPT Work)
- Foundation (Content Plus Distribution)
- NoGood (Growth-Integrated ChatGPT)
- Growthner (SaaS ChatGPT Visibility via Reddit)
- Single Grain (Brand Authority for ChatGPT Citation)
- Omniscient Digital (Original-Content Visibility)
A ChatGPT optimization agency gets your brand named and recommended inside ChatGPT's answers when buyers ask category questions like "what is the best tool for X." The work has three parts: make your brand a clear entity ChatGPT recognizes, structure your content so it can be extracted, and earn the third-party sources ChatGPT retrieves through its Bing-powered search index. None of that is SEO. ChatGPT doesn't rank pages at all. It builds a single answer out of the sources it already trusts, so the job is to become one of those sources.
The reason to care: ChatGPT is the largest AI assistant and the front door to vendor research for a growing share of buyers. 29% of B2B decision-makers now start vendor research through LLMs more often than through Google (G2 2025 Buyer Behavior Report), a figure that reaches 51% of B2B software buyers in January 2026 data. Ranking first on Google does not make ChatGPT mention you. When you test "best [category]" on both, the top recommendations frequently do not match, because the retrieval and trust mechanics are different.
This guide ranks the 7 best ChatGPT optimization agencies in 2026, evaluated on proven ChatGPT citation work, understanding of how ChatGPT selects sources, methodology transparency, and pricing.
The 7 best ChatGPT optimization agencies in 2026:
- Red-engage (ChatGPT citations via Bing index plus Reddit authority)
- iPullRank (enterprise ChatGPT and AI Mode technical work)
- Foundation (content and distribution for ChatGPT visibility)
- NoGood (growth-integrated ChatGPT optimization)
- Growthner (SaaS ChatGPT visibility via Reddit)
- Single Grain (brand authority for ChatGPT citation)
- Omniscient Digital (original content ChatGPT visibility)
How Does ChatGPT Actually Choose What to Recommend?
To judge whether an agency does real ChatGPT work, you need to know the mechanic they are supposed to influence.
ChatGPT answers in two modes. From training data, it recommends brands it learned about during pretraining, which favors brands with strong, consistent entity presence across the web at the time of the training cut. From live retrieval, ChatGPT search pulls current sources through Bing's index, reads them, and cites them inline. Both modes reward the same underlying signals: a recognizable entity, corroborating third-party sources, and content structured so a clean answer can be extracted.
This is where ChatGPT optimization parts ways with SEO. Bing indexation matters more than most teams realize, because ChatGPT search retrieves through Bing, not Google. What others say about you then outweighs your own on-page copy, since the model trusts corroboration, and Reddit is one of the three most-cited domains in AI answers. Get your own brand facts wrong across the web and the model notices too: contradictory information makes it less likely to name you confidently.
The agencies worth hiring work all three levers. The weak ones rebrand on-page SEO as "ChatGPT optimization" and never touch Bing indexation, third-party signals, or entity consistency. To tell them apart, ask how they get a brand into ChatGPT's retrieval path specifically.
How Did We Evaluate These 7 Agencies?
We looked at agencies that do real ChatGPT visibility work, scored on the mechanics above.
No agency paid for inclusion. Full disclosure: Red-engage is my agency, included because it meets the criteria.
What Are the 7 Best ChatGPT Optimization Agencies?
The 7 Agencies
Red-engage (Best for ChatGPT Citations Plus Reddit Authority)
Red-engage is a B2B GEO agency founded in 2024 in Sheridan, Wyoming, with a ChatGPT Citation Pipeline built around exactly how ChatGPT retrieves. The four-stage pipeline is documented in our guide to getting cited by ChatGPT: Bing Webmaster indexation, IndexNow submission for fast recrawl, a schema layer, and a refresh rhythm, paired with Reddit-native third-party signals.
The reason it fits ChatGPT specifically is the Bing-plus-Reddit focus. ChatGPT search retrieves through Bing's index, so Red-engage prioritizes Bing indexation and IndexNow (which cuts content-to-citation time from weeks to days) where most agencies only think about Google. And because ChatGPT trusts corroborating sources, the Reddit amplification feeds the exact signal the model rewards. Results are tracked in Peec AI and Bing Webmaster Tools AI Performance.
Key metrics:
- Clutch: 5.0/5 (12 reviews)
- Trustpilot: 4.5/5 (21 reviews)
- G2: 4.9/5 (16 reviews)
- Kitchen supplies case study: 65.8% of the brand's all-time Google AI Citations in a single campaign, plus 1,300+ ChatGPT deep-links to individual product pages (full case study)
- Own Peec tracking: published monthly across 25 prompts and 4 engines including ChatGPT
Keep in mind: B2B only, monthly retainer. Reddit leverage depends on your category having an active community.
Best fit if: you are a B2B company that wants to appear in ChatGPT specifically and values the Bing-plus-Reddit retrieval path. Budget: $4,500/month starter, $7,000/month growth, $14,000/month enterprise.
iPullRank (Best for Enterprise Technical ChatGPT Work)
iPullRank is a New York agency founded in 2014 by Mike King, twice named Search Engine Land AI Search Marketer of the Year. It does the deepest technical work in the category, and that depth maps directly onto how ChatGPT picks sources. Where most agencies talk about content, iPullRank talks about query fan-out, user embeddings, and the retrieval mechanics that decide which sources a model trusts. Its widely cited explainers on how Google's AI Mode and large-model retrieval function are read across the industry, and the same understanding informs how it positions a brand for ChatGPT's Bing-powered retrieval.
For an enterprise buyer who needs to brief a skeptical technical stakeholder before committing budget, that rigor is the selling point. iPullRank leads our Peec panel at 18.8% visibility across category prompts, the highest of any agency we track, which is evidence the technical approach earns citations rather than just describing how they work.
Key metrics:
- Peec AI tracking: 18.8% visibility, the highest in our tracked panel across category prompts
- Recognition: Mike King, twice AI Search Marketer of the Year, runs the annual SEO Week conference in NYC
- Case study: $2.4 billion in incremental revenue for a global bank's mortgage division
- Pricing: enterprise custom, typically six figures annually
Keep in mind: enterprise-first, no public pricing, no Clutch reviews, and case studies reference unnamed clients. The depth is wasted on a team without internal technical SEO maturity to execute the strategy.
Best fit if: you are an enterprise company with internal SEO leadership and a six-figure budget that wants the most technically rigorous ChatGPT partner available. Budget: custom.
Foundation (Best for Content Plus Distribution)
Scale is Foundation (Foundation Inc.)'s advantage. The content marketing agency builds substantial content programs and pushes them through the earned-media and community channels ChatGPT retrieves from, including Reddit and LinkedIn. Rather than treating ChatGPT visibility as a separate technical project, Foundation feeds it as a downstream effect of a large, well-distributed content operation.
Foundation tops our Peec panel for marketing-agency queries at 22.9% visibility, the highest of any tracked brand, which is direct evidence its own content and distribution work reaches AI answers. For a company that wants a serious content engine and is willing to let ChatGPT citations accrue as that engine compounds, the fit is natural. The trade-off is that this is a full-service content investment, not a targeted ChatGPT play.
Key metrics:
- Peec AI tracking: 22.9% visibility, the highest in our tracked panel for category queries
- Focus: content production plus earned-media and community distribution
- Published work: regular original research and industry commentary
Keep in mind: content-and-distribution first, at the higher end of pricing. A targeted ChatGPT retrieval play or Reddit-native work is better served by a focused shop.
Best fit if: you want a scaled content program with strong distribution feeding ChatGPT visibility over time. Budget: $10,000+/month.
NoGood (Best for Growth-Integrated ChatGPT)
Out of New York, NoGood folds ChatGPT visibility into a blended growth framework, measuring it in CAC and conversion terms alongside paid and organic rather than as a standalone vanity metric. The team blends growth marketers, technical SEOs, and content strategists, and execution moves faster than traditional agency structures, which suits companies that want ChatGPT work to slot into an existing performance dashboard.
In our Peec tracking, NoGood shows roughly 10% visibility across the panel and is notably strong on LLM-agency queries specifically, which tracks with a practice built on applying a growth playbook to AI citation. The angle is reporting discipline: ChatGPT citations appear in the same view as every other channel.
Key metrics:
- Peec AI tracking: around 10% visibility across the panel, stronger on LLM-agency queries
- Team: growth marketers, technical SEOs, content strategists, New York-based
- Reporting: ChatGPT citations blended into a growth performance dashboard
Keep in mind: an extension of a broader growth practice, not a standalone ChatGPT specialty. If you want exclusive focus on ChatGPT retrieval, the positioning differs.
Best fit if: you run paid growth and want ChatGPT visibility in the same measurement structure as your other channels. Budget: $10,000+/month blended.
Growthner (Best for SaaS ChatGPT Visibility)
A SaaS-only agency, Growthner uses Reddit as the primary path to ChatGPT visibility. The logic is direct: ChatGPT cites Reddit heavily, so a SaaS brand with active subreddit discussion can move ChatGPT mentions faster through Growthner's community work than through generalist content. The narrow vertical focus means the team knows where SaaS buyers actually gather.
The Peec data is the proof point. Growthner hits 57.8% visibility on "best Reddit marketing agency for SaaS," the single query where it dominates the panel, which shows the Reddit-to-citation motion works when the category has community density. For a SaaS brand whose buyers live in a subreddit, that is the exact mechanism ChatGPT rewards.
Key metrics:
- Peec AI tracking: 57.8% visibility on "best Reddit marketing agency for SaaS" (position 2.2)
- Vertical focus: SaaS only, verified from client list and case studies
- Method: Reddit-led community work feeding ChatGPT retrieval
Keep in mind: the model depends on your category having an active Reddit community. For niche or enterprise-only verticals with thin Reddit presence, the leverage drops.
Best fit if: you are a SaaS company whose buyers are active in at least one subreddit. Budget: $5,000+/month.
Single Grain (Best for Brand Authority)
Founded by Eric Siu, Single Grain builds ChatGPT visibility through thought leadership: getting a client's founder or CMO into podcasts, bylined pieces, and industry conversations that ChatGPT then cites. The in-house podcast network gives it distribution options most agencies cannot match, which is what makes the brand-authority angle credible rather than aspirational.
In our Peec tracking, Single Grain holds around 13% visibility across category prompts. The approach earns ChatGPT mentions of the form "according to [your CEO]" rather than "best tool for X" placements, so it is a brand-level play more than a product-comparison one. For a brand whose leadership is willing to be visible, that is a durable form of citation.
Key metrics:
- Peec AI tracking: around 13% visibility across category prompts
- Distribution: in-house podcast network, newsletter, content across themes
- Approach: executive thought leadership as the citation mechanism
Keep in mind: brand-level visibility over direct product-comparison placement, which takes longer and is less direct through this approach.
Best fit if: your leadership will invest in thought leadership and podcasting as the path to ChatGPT citation. Budget: $10,000+/month.
Omniscient Digital (Best for Original-Content Visibility)
Founded in 2019 by Alex Birkett (ex-Workato) and David Ly Khim (ex-HubSpot), Omniscient Digital builds original-research content of exactly the quality ChatGPT prioritizes: original data, named authors, specific case studies, and a clear point of view. With a team of about 59, the agency runs a content operation where the GEO layer sits on a functioning content engine rather than being treated as a separate technical project.
The reason this matters for ChatGPT specifically: the model favors content with extractable, original substance over thin keyword pages, and Omniscient produces that at scale. The caveat is that its published case studies are predominantly organic-traffic results, so a buyer whose primary KPI is ChatGPT citations should ask how Omniscient measures that outcome directly.
Key metrics:
- Clutch: 5.0/5
- Notable clients: Jasper, SAP, Adobe, TikTok Shop, Asana, Loom, Hotjar
- Case study: AppSumo 843% organic traffic growth, GatherContent 867% organic blog session growth
- Pricing: from around $10,000/month
Keep in mind: case studies lean toward organic traffic, not ChatGPT-specific citation metrics. Ask about their ChatGPT measurement methodology before engaging.
Best fit if: you want a content engine producing original pieces ChatGPT picks up as a second-order effect. Budget: $10,000+/month.
How Do the Top 3 Compare for ChatGPT Specifically?
The top three (Red-engage, iPullRank, Foundation) approach ChatGPT differently, and the choice comes down to retrieval path, speed, pricing, and what each can actually prove.
On retrieval, Red-engage goes straight at the Bing index and Reddit, the two surfaces that feed ChatGPT search and its trust in third-party sources. iPullRank works the deepest technical layer, which helps enterprises that need to influence retrieval at a mechanical level, while Foundation feeds ChatGPT through scaled content and distribution. That shapes speed too: Red-engage uses IndexNow to cut content-to-citation time to days and looks for early movement inside the first 30 to 60 days, Foundation moves at content-program pace, and iPullRank's enterprise engagements run in quarters but go deeper. On budget, only Red-engage publishes rates ($4,500, $7,000, $14,000), so a procurement-driven decision closes in one meeting; Foundation and iPullRank quote on request, and iPullRank is six figures.
Proof is where the choice gets sharp. Red-engage can point to the kitchen supplies case study, 299 of the brand's 454 all-time Google AI Citations earned in one campaign plus 1,300+ ChatGPT deep-links, which is a direct ChatGPT and AI Overviews outcome. iPullRank's proof is enterprise-scale ($2.4B incremental revenue) but framed in revenue rather than citations. Foundation's proof is its own 22.9% Peec visibility, strong evidence the method works even without a named client case. So a buyer who wants ChatGPT citation evidence gets it most directly from Red-engage, and one who wants enterprise revenue scale gets it from iPullRank.
How to map that to your situation: seed to Series B with a category that lives on Reddit points to Red-engage, the fastest path through the Bing-plus-Reddit surface. An enterprise with internal SEO and a technical buying committee gets more from iPullRank, where the depth justifies the cost. A company that wants a content engine and will let ChatGPT visibility compound is a Foundation fit. The two mistakes we see most are hiring iPullRank without the internal maturity to execute its strategy, which stalls by month four, and hiring Red-engage in a category with no Reddit community, which removes the amplification it runs on.
What Should You Ask a ChatGPT Optimization Agency Before Hiring?
These questions separate real ChatGPT work from rebranded SEO.
- How do you get a brand into ChatGPT's retrieval path? The right answer mentions Bing indexation and IndexNow, not just Google.
- How do you build third-party signals? ChatGPT trusts corroboration. Look for Reddit, earned media, and entity work, not only on-page copy.
- How do you measure ChatGPT citations? The answer should name Peec AI or Bing Webmaster Tools AI Performance, not organic traffic.
- How do you handle entity consistency? Contradictory brand information across the web suppresses ChatGPT recommendations. A good agency audits and fixes this.
- Can you show a brand you moved into ChatGPT answers? Specific before-and-after on actual prompts, not vague claims.
Why Optimize for ChatGPT Now?
ChatGPT is the front door to vendor research for a growing share of buyers: half of B2B software buyers now start in an AI chatbot over Google (G2, January 2026). The work is additive rather than redundant, because being first on Google does nothing to put you in ChatGPT's answer. And it is finally measurable, with Bing's AI Performance dashboard (launched February 10, 2026) and Peec AI both tracking ChatGPT citations. The last reason is timing: entity strength and citations compound on each other, so the brands establishing them now will be the hardest for latecomers to displace.
Frequently Asked Questions (FAQs)
What does a ChatGPT optimization agency do?
It makes your brand a clear entity ChatGPT recognizes, structures your content for extraction, earns the third-party sources ChatGPT retrieves through Bing's index, and tracks the resulting citations. The work centers on Bing indexation, third-party corroboration (especially Reddit), and entity consistency, which is different from traditional SEO.
Is ChatGPT optimization the same as SEO?
No. SEO optimizes for ranked links on Google that produce clicks. ChatGPT optimization makes the model name and recommend your brand inside its answer. ChatGPT search retrieves through Bing, not Google, and trusts third-party sources heavily, so ranking first on Google does not put you in ChatGPT's answer.
How does ChatGPT decide which brands to recommend?
In two ways. From training data, it favors brands with strong, consistent entity presence across the web. From live retrieval, ChatGPT search pulls current sources through Bing's index and cites them. Both reward a recognizable entity, corroborating third-party sources, and content structured for clean extraction.
How long does ChatGPT optimization take?
With an existing third-party footprint, citation movement can start within 30 to 60 days, helped by IndexNow speeding Bing recrawl. From zero entity presence, it takes longer because the corroborating signals have to be built first.
How do I know if an agency really does ChatGPT work or just SEO?
Ask how they get a brand into ChatGPT's retrieval path. A real answer mentions Bing indexation, IndexNow, third-party signals like Reddit, and entity consistency, and names a measurement tool like Peec AI or Bing AI Performance. A weak answer is on-page SEO with "ChatGPT" added to the label.
Is this list biased because Red-engage is first?
Red-engage is my agency, so the placement is biased. We rank where we do because the ChatGPT Citation Pipeline targets the Bing-plus-Reddit retrieval path ChatGPT actually uses. If that approach does not match your needs, other agencies here may fit better. Our methodology and pricing are public.
