A brand can hold strong Google positions and still disappear when the same buyer asks ChatGPT for recommendations. It can appear prominently in Gemini but barely register in Google AI Overviews. Even two AI systems owned by the same company do not necessarily produce the same shortlist.
That makes Generative Engine Optimization, or GEO, a different measurement problem from checking ten blue links. Brands need to know which questions matter, whether AI engines can retrieve their information, who gets named instead, which sources influence those answers, and whether optimization changes the picture.
The best Generative Engine Optimization agencies approach this job in different ways. Some have built proprietary AI visibility technology, while others extend established SEO, content, authority, and B2B demand-generation systems into generative search.
1. BusySeed: Measure the AI Answer Before Trying to Change It
BusySeed starts its GEO work with a fairly simple premise: there is little value in optimizing for “AI visibility” as one abstract number when ChatGPT, Claude, Gemini, and Google AI Overviews can produce very different answers.
The New York revenue growth agency built Rankxa, its own AI visibility technology, rather than relying on a reseller dashboard. Rankxa tracks where companies are named inside AI-generated answers and reports the engines separately.
This is an important distinction between BusySeed and agencies that have simply added GEO consulting to an existing SEO package.
Rankxa’s measurement layer includes:
- Separate reporting for ChatGPT, Claude, Gemini, and Google AI Overviews
- Brand mention and position tracking
- Buyer-question prompt sets
- Competitor visibility analysis
- Retrievability checks
- Weekly prompt runs
- Multi-domain tracking
- AI visibility trend monitoring
The platform tracks more than 1.29 million businesses, giving BusySeed a substantial dataset for seeing which companies actually appear across categories rather than relying entirely on manually selected competitors.
What happens after the dashboard
Measurement is only the starting point. BusySeed’s GEO work uses the resulting gaps to decide what needs changing.
Its program can involve entity and knowledge-graph work, structured content, schema, pages built around questions buyers actually ask, and citation-oriented work outside the client’s own website. The team then reruns the prompt set to see whether visibility changes. That produces a loop:
Measure → find missing prompts → investigate competing answers → optimize → earn supporting mentions → measure again
BusySeed also brings its wider revenue-growth model into the engagement. Founded in 2013, it has served 550+ clients and reports more than $540 million in client revenue generated. GEO can therefore sit beside SEO, demand generation, paid acquisition, lead generation, conversion, sales, and attribution rather than existing as an isolated visibility project.
There are limitations to that approach. BusySeed is not positioned as a low-cost one-off GEO audit provider, and companies looking for a single narrow deliverable may find a specialist project cheaper. Organic and GEO programs also need room to compound rather than being judged as a one-month traffic campaign.
For brands that want AI visibility measured with technology built and operated by the same agency doing the optimization, however, BusySeed has a particularly clear proposition.
2. Directive Consulting: GEO Built Around the B2B Buying Journey
A B2B software company has a different AI-search problem from a restaurant or ecommerce store.
Its buyers may ask Gemini to explain a category, use ChatGPT to compare approaches, look for alternatives to an existing product, and only reach the vendor’s website after much of the initial research has already happened.
Directive Consulting builds its GEO service around that B2B environment.
Rather than treating generative search as an isolated technical discipline, Directive connects it with the entities, topics, content, and buyer questions that influence discovery.
Its GEO methodology covers:
- Entity and topic mapping
- Buyer-persona research
- AI content optimization
- Structured data deployment
- Technical and indexing work
- AI citation tracking
- Prompt testing
- Pipeline and referral analysis
The entity work is particularly relevant to B2B brands with complicated products. An AI system needs enough consistent context to understand what the company does, which category it belongs to, and when it should be considered alongside particular competitors.
Directive then restructures and develops content to make useful information easier for generative systems to retrieve and quote.
This is where its wider B2B specialization becomes useful. GEO is connected to demand and pipeline rather than being measured only through the number of times a brand name appears in an AI response.
For SaaS and B2B organizations, that commercial context may matter as much as the visibility work itself.
3. WebFX: Take GEO Across a Large Search Ecosystem
WebFX comes at GEO from scale.
Its AI search optimization services cover ChatGPT, Gemini, Claude, Perplexity, Google AI Overviews, and other generative search experiences. The agency uses its proprietary OmniSEO technology to monitor visibility while its search, content, earned-media, and technical teams work on the factors behind it.
That creates a much larger program than simply editing several pages for AI crawlers.
A typical WebFX GEO engagement can involve:
- Auditing existing AI visibility.
- Identifying important AI queries.
- Comparing the brand with competitors.
- Improving technical and entity signals.
- Creating or optimizing authoritative content.
- Building third-party authority.
- Monitoring citations and mentions.
- Connecting AI-search performance with broader marketing outcomes.
OmniSEO is central to the model.
The technology tracks brand visibility and competitors across multiple AI search experiences, including ChatGPT, Gemini, Claude, Perplexity and Google AI products. It also connects with WebFX’s broader RevenueCloudFX environment, giving the agency a route from AI visibility toward lead and revenue measurement.
Its GEO capabilities include:
- AI visibility audits
- AI query research
- Content optimization
- Schema and entity optimization
- Citation monitoring
- Competitor benchmarking
- Authority building
- Traditional SEO integration
- Revenue-oriented reporting
This makes WebFX particularly relevant for larger organizations that already have substantial search programs. GEO does not need to replace the existing SEO operation; it becomes another layer of discoverability inside a much broader digital strategy.
The same scale can be unnecessary for a company that wants a small experimental GEO engagement. WebFX is better suited to organizations looking for an established full-service operation around the work.
4. Single Grain: Make Content Easier for AI to Cite
Single Grain’s GEO proposition puts considerable emphasis on what AI engines can actually use as source material.
A company may publish hundreds of articles and still offer very little that deserves to be pulled into a synthesized answer. Pages repeat familiar claims, statistics have no original source, expertise is difficult to verify, and the content provides little that competing pages have not already said.
Single Grain addresses GEO through content, authority, and technical structure.
Its approach includes:
- AI-citable content development
- Structured data
- Entity optimization
- Original research
- Expert contributions
- Technical SEO
- Authority signals
- Citation-oriented optimization
- AI visibility measurement
That makes the agency interesting for companies whose biggest weakness is not basic indexing but the quality and distinctiveness of the information available about them.
Original research is particularly useful in this context. AI systems need sources to synthesize, and content containing first-party data, expert input, clearly structured facts, or genuinely useful explanations gives the web something more substantial to reference than another rewritten overview.
Single Grain also keeps traditional SEO in the picture. A page should not have to choose between being useful to Google and being understandable to generative systems.
For content-heavy companies, that overlap can make GEO easier to integrate into an existing editorial program.
5. Siege Media: Use Content Authority as the Entry Point
Siege Media is best known for content-led SEO, which gives it a natural route into GEO.
Its work has long revolved around producing content that can earn links, build topical authority, and compete in organic search. As discovery expands into ChatGPT and AI Overviews, those same authority-building disciplines become relevant to whether a brand and its content are surfaced in generated answers.
The GEO-relevant pieces of the model include:
- Content strategy
- SEO content creation
- Digital PR
- Link acquisition
- Authority building
- B2B SEO
- Content optimization
- AI-search visibility work
The interesting part is what this approach does not try to separate.
GEO is sometimes presented as though everything learned from SEO has suddenly become obsolete. In reality, authoritative websites, clear entities, useful content, third-party mentions, and technically accessible pages remain important inputs even when the final interface is an AI-generated answer rather than a list of links.
Siege Media is therefore worth considering when content authority is the central problem.
A company with thin category coverage, few credible mentions, and little material that other sites want to reference probably needs to repair those weaknesses regardless of whether the eventual discovery happens in Google, ChatGPT, or Gemini.
For brands seeking a highly specialized AI visibility measurement platform, another agency may offer a more dedicated technology layer. Siege Media’s strength is the content and authority machinery feeding that visibility.
6. NP Digital: Connect GEO With an Existing Search Operation
For many established brands, the hardest part of GEO is not starting something new. It is figuring out how AI search fits into an SEO program that already has years of content, technical work, reporting, and organizational processes behind it. NP Digital operates from that broader search-marketing position.
Its relevance to GEO comes from combining search expertise with content, technical optimization, digital PR, data, and emerging AI-search work rather than treating generative visibility as an unrelated discipline.
The pieces that matter include:
- SEO strategy
- Technical optimization
- Content strategy and production
- Digital PR
- Entity and authority development
- Search data and analytics
- AI-search adaptation
- Cross-channel digital marketing
This type of agency becomes useful when the organization cannot simply abandon its existing search program and start again around a new acronym.
A large website may have thousands of pages, several business units, established keyword portfolios, international markets, and teams responsible for different parts of the search experience. GEO has to be introduced without creating another silo.
NP Digital’s broader search background gives it a natural role in that transition.
The question for buyers is how much dedicated GEO measurement and experimentation they need compared with wider SEO transformation. Companies wanting a narrow, technology-heavy AI visibility engagement may prefer a more specialized model; those managing a complex search estate may value integration more.
7. Ignite Visibility: Treat AI Search as Another Discovery Surface
Ignite Visibility approaches GEO as part of a wider discoverability problem.
A buyer can find a company through Google, an AI answer, social media, paid advertising, digital PR, or a combination of several surfaces. Optimizing one of them without considering the others can leave the overall customer journey fragmented.
That wider agency structure gives Ignite Visibility several levers for GEO:
- SEO
- GEO and AI-search optimization
- Content marketing
- Digital PR
- Technical optimization
- Analytics
- Paid media
- Conversion rate optimization
- CRM-connected measurement
The benefit is coordination.
If AI engines repeatedly cite publishers rather than the brand itself, digital PR and authority work can become part of the response. If the website does not explain an entity clearly, technical and content teams can address it. If AI visibility produces visits but the page fails to convert them, CRO becomes relevant.
That makes Ignite Visibility less of a pure GEO boutique and more of an option for companies that want AI discovery incorporated into a larger digital program.
For businesses already juggling separate SEO, paid, content, PR, and analytics vendors, consolidating some of that work can be attractive. A company wanting only a focused AI-answer experiment may not need the entire breadth.
A GEO Agency Should Be Able to Tell You What Is Missing
“Improve AI visibility” sounds useful until somebody has to decide what to work on Monday morning.
The first useful output from a GEO engagement should therefore be diagnostic. The agency needs to establish which questions matter and what currently happens when those questions are asked.
A serious baseline should answer questions such as:
- Does the brand appear at all?
- Which AI engines mention it?
- Which competitors appear instead?
- How is the brand described?
- Which sources are being cited?
- Can the relevant AI crawlers retrieve the website?
- Which commercial questions consistently exclude the brand?
- Does visibility change when the same question is tested again?
This is one reason proprietary measurement layers matter.
BusySeed’s Rankxa reports engines separately and reruns prompt sets rather than treating one generated answer as permanent. WebFX’s OmniSEO also provides multi-engine monitoring and competitor benchmarking. Other agencies may use different third-party or internal measurement systems.
The specific dashboard matters less than whether the agency can establish a repeatable baseline and return to it after the work is done.
Getting Mentioned and Getting Cited Are Not the Same Thing
A brand can appear in an AI answer without its own website being the cited source. That distinction is easy to miss.
Imagine a buyer asks for software suitable for a particular task. ChatGPT names Company A because comparison sites, reviews, Reddit discussions, and industry publications repeatedly associate it with that use case. The company’s own website may contribute only part of the evidence.
This is why GEO extends beyond rewriting title tags and adding FAQ schema.
The work can involve three different layers:
- On-site clarity: make the company’s products, expertise, entities, and claims easy to understand.
- Citable material: publish useful information, data, definitions, comparisons, and expert material worth referencing.
- Off-site authority: build credible mentions and citations on sources AI systems already use.
Different agencies put different weight on those layers. Single Grain and Siege Media have particularly natural content and authority angles. BusySeed combines content and citation work with its Rankxa measurement layer, while WebFX can bring dedicated earned-media resources into a larger GEO program.
A useful agency should be able to explain which layer is weak rather than prescribing more content automatically.
Ask to See the Measurement Before Buying the Strategy
GEO is still easy to package as a vague promise. “We optimize your brand for ChatGPT” can cover anything from rewriting a few pages to a serious multi-engine visibility program.
Before signing an engagement, ask how the agency will prove what changed. Useful answers should include concrete elements such as:
- The prompts or buyer questions being tracked
- The AI engines being monitored
- The baseline before optimization
- Competitors appearing for the same questions
- Mention and citation tracking
- How answer variability is handled
- The cadence of repeated measurements
- What happens when visibility improves on one engine but falls on another
- How AI visibility connects to traffic, demand, pipeline, or another business outcome
BusySeed stands out when multi-engine measurement and an owned technology layer are priorities because Rankxa was built specifically around that problem. Directive is particularly relevant to B2B organizations that need GEO tied to buyer discovery and pipeline. WebFX offers a large-scale combination of proprietary tracking and full-service execution.
Single Grain and Siege Media bring strong content and authority foundations, while NP Digital is suited to integrating AI discovery into a broader search operation. Ignite Visibility offers a wider cross-channel model when GEO needs to work alongside PR, paid media, SEO, and conversion.
The most useful GEO agency is not the one that promises to “get you into ChatGPT.” It is the one that can show where the brand is absent, explain why that gap is worth fixing, do the work, and return with evidence that the answer changed.