An AEO agency is a firm that gets your brand cited in AI-generated answers — ChatGPT, Perplexity, Google AI Overviews. GEO (Generative Engine Optimization) is the technical layer that makes AEO work. The success metric for both is citation frequency in LLM outputs, not keyword rankings. AI search is eating traditional organic traffic. This guide covers how to vet an AEO firm before signing anything.
Section 01
How to evaluate an AEO agency
To evaluate an AEO firm: check whether they show up in AI answers themselves, ask for citation data from past clients, and confirm they have a defined method for tracking LLM mentions. If any of those three are missing, the conversation is over.
The rest of the process goes deeper — but those three questions filter out 80% of the field.
Step-by-step evaluation checklist:
- Define which AI platforms your audience uses: ChatGPT, Perplexity, Gemini, Bing Copilot.
- Ask the firm to run a live citation audit on one of your URLs — during the scoping call, not after.
- Request before/after citation data from at least two past clients in your vertical.
- Confirm they have a named tracking method — not "we monitor rankings."
- Run a 30–60 day pilot on one topic cluster before committing to a full retainer.
- Verify contract SLAs are tied to citation outcomes, not traffic or impressions.
AEO makes your content show up as the actual answer in AI-driven searches, not just a link below the fold. Evaluating a firm for this is different from hiring an SEO shop, and most companies get it wrong because they use the same checklist.
Define your platforms first. Which AI tools does your audience actually use? What questions do you want your brand to answer? Without that clarity, you cannot evaluate anyone.
Ask for a live page audit. Hand them one of your URLs. A serious AEO firm comes back within days with a gap analysis on structured data, schema markup, and entity clarity. Two weeks and a slide deck with no specifics? That is your answer.
Find out how they track citations. Traditional SEO tracks rankings. AEO requires tracking how often your brand appears in AI-generated answers. Ask directly: what method do you use? If they cannot name one, they do not have one.
Check sector experience. Healthcare, SaaS, e-commerce each have different AI retrieval patterns. Generic B2B content work does not transfer cleanly.
Section 02
What questions should you ask an AEO agency?
Ask every candidate the same question: "Can you show a client whose brand went from zero AI citations to measurable presence?" Firms with genuine results pull up an example immediately. The others start explaining their methodology.
Four more questions that separate the field:
- How do you measure success — citations, impressions, or pipeline?
- Which LLM platforms do you track, and how often?
- Who on your team does the technical schema work — in-house or outsourced?
- What does your reporting look like, and can I see a sample?
Section 03
Comparing AEO agencies
Put three to five candidates through the same questions. The ones with genuine results answer fast. The others pivot to process.
| Criterion | What to look for | Red flag |
|---|---|---|
| AI citation tracking | Named tool or method | "We monitor rankings" |
| Schema and structured data | Technical staff in-house | Outsourced to generalists |
| Case study quality | Before/after citation data | Traffic-only metrics |
| Reporting | Monthly multi-platform audit | Quarterly or undefined |
| Pricing model | Clear scope per tier | Flat fee, no output list |
| Industry experience | Work in your vertical | Generic B2B portfolio |
| Contract terms | Month-to-month or 6-month | 12-month lock-in, no SLA |
Section 04
Where companies go wrong when choosing an AEO agency
Most companies fail because they evaluate AEO firms using an SEO checklist. That is the wrong frame entirely.
They ask for traffic projections. AEO success shows up in citation frequency, not organic sessions. A firm that leads with traffic numbers does not understand what they are selling.
They skip the technical audit. AEO without GEO is strategy without execution. If the firm cannot explain how they handle schema markup and entity disambiguation, they are outsourcing the work that matters.
They sign 12-month contracts before seeing a pilot result. A competent firm will run a 30-day pilot because they expect it to convert. A firm that resists pilots has nothing to show.
They measure wrong. Brand impressions in AI outputs is not the same as citations. Make sure the contract specifies the difference before you sign.
Section 05
Best AEO agencies 2026
Three types of firms are doing this work in the US right now.
Pure-play specialists were built for LLM optimization from scratch. Smaller teams, faster iteration — but thin bench if a key person walks. Firms like Profound and BrandFound sit in this tier: they started with AI search measurement and built agency services around it.
SEO shops with AEO practices have broader resources and more service options. AEO is often an add-on, not the core. Worth asking when the practice launched and who runs it day-to-day. Conductor and Botify have moved in this direction, though depth on citation-specific work varies by team.
GEO-native firms treat GEO as the whole product. They think in retrieval pipelines rather than keyword clusters. Better fit if you need serious technical depth or are operating across multiple LLM platforms simultaneously.
The thing that separates the top tier in 2026: their own citation-tracking tools. Firms that built dashboards to measure brand mentions across LLM outputs are operating at a different level than shops still running standard SEO platforms. Ask to see a live demo showing your brand tracked across ChatGPT, Perplexity, and Google AI Overviews — in a single report.
Section 06
GEO services overview
GEO handles the technical layer underneath AEO strategy. AEO is the direction; GEO is what makes it work. That distinction matters when you are scoping a contract because GEO services are often billed separately from the base retainer. Confirm scope upfront.
What GEO covers in practice: structured data implementation, entity optimization, knowledge graph mapping, answer-layer content formatting, RAG-pipeline readiness checks. A strong AEO agency either runs this in-house or works with a dedicated GEO specialist.
Section 07
Choosing a GEO consultant
GEO consultants work on specific projects — a schema overhaul, an entity mapping sprint, a RAG-readiness audit — not ongoing monthly retainers. Different scope than a full AEO agency engagement.
What to look for:
- Do they know how GPT-4o, Claude, and Gemini weight sources differently? The answer is not the same for each.
- Do they define success as citation frequency, not page optimization scores?
- Have they done comparable work in your industry at a similar scale?
- Are they actually available? A consultant split across five clients will not produce at full speed.
One thing often overlooked: FTC disclosure rules for AI-generated content are real and getting stricter. For US companies, that is not optional — the consultant should know the current guidance before work starts, not during it.
Section 08
What makes a good GEO consultant
Technical depth plus content judgment. The combination is rare. Most practitioners have one. Few have both.
On the technical side, they should know Schema.org and Wikidata entity management without looking things up, understand how embedding models affect retrieval, and be able to read a RAG pipeline and explain what it prioritizes.
On the content side, they should map your brand entity gaps — the real reasons LLMs skip you — audit content for citability, and focus on topics where AI citation drives actual pipeline, not just brand impressions.
Quick test: ask them to explain the difference between BM25 retrieval and vector search. A GEO consultant who cannot answer that has not kept up.
Section 09
In-house vs outsourcing LLM optimization
For most companies under $10M ARR, outsource. A qualified in-house LLM optimization hire costs $150K–$220K in base salary, plus tooling at $20K–$60K per year, plus six to twelve months before they are genuinely productive. That is expensive for a skill set that shifts every quarter.
| Factor | In-house | Outsourced AEO agency |
|---|---|---|
| Time to productivity | 6–12 months | 30–60 days |
| Upfront cost | High — hiring plus tooling | Retainer only |
| Institutional knowledge | Stays in-house | Leaves at contract end |
| Tool access | Must build or license | Usually included |
| Adaptability | Depends on team pace | Agency learns across clients |
| Accountability | Internal reviews | SLA-bound outputs |
| Best fit | Existing SEO/content team, 12-month runway | Everyone else |
At $50M+ revenue, a hybrid setup makes sense: one internal strategist managing an outsourced AEO agency. They own the accountability; the agency handles execution and tooling. Lower long-term cost, faster start than building from scratch.
Section 10
FAQ
Q: What is an AEO agency? A: A firm that gets your brand cited in AI-generated answers — ChatGPT, Perplexity, Google AI Overviews. The success metric is citation frequency in LLM outputs, not keyword rankings.
Q: Why is GEO important for AEO? A: Without GEO doing the technical groundwork, AEO strategy has nothing to run on. Structured data, entity clarity, answer-formatted content make content retrievable. You can have the right strategy and still not show up because the underlying technical work was not done.
Q: What technologies are influencing AEO agencies today? A: RAG determines what gets cited in real time. Vector databases affect semantic matching. Schema.org and Wikidata shape entity recognition. Agencies worth hiring track OpenAI, Google, and Anthropic model updates, because citation behavior shifts after each release.
Q: What are common hidden costs in AEO services? A: Citation-tracking tool licenses outside the retainer. Schema work by external developers. Per-asset content charges above a monthly cap. Platform onboarding costs. Ask for a line-item scope and a sample invoice from a current client before signing.
Q: How do you avoid choosing the wrong AEO agency? A: Run a live citation audit in the scoping call. Call references and ask what the agency did not deliver. Confirm whoever pitched you is the person doing the work. Check that the contract measures success in citation terms, not traffic or rankings.