In Q4 2025, I was evaluating an online business for acquisition. The previous owner had hired what they called an “AI-powered SEO agency.” In 11 months, that agency published 312 articles using AI generation with minimal editing. When I ran the crawl, 287 of those articles had fewer than 3 organic impressions in the last 90 days. The site had also received a manual action warning in Google Search Console. I passed on the deal. The seller received $0.
I have vetted 20+ SEO providers across my portfolio of online businesses. The AI SEO agency market in 2026 has a bifurcation problem: two completely different types of agencies operate under the same label, their sales decks look identical, but the results inside their client sites look nothing alike. This article covers the framework I use to tell them apart and the six agencies that passed it.
Agencies at a Glance
If you already know what you’re looking for, here’s a quick overview of all six. Full breakdowns follow below.
| Agency | Best for | Starting price |
|---|---|---|
| Vettted | GEO/AEO citation work without committing to a full retainer | Project-based |
| Grow and Convert | Content-driven businesses where traffic needs to convert, not just accumulate | $8K+/mo |
| Omniscient Digital | B2B SaaS brands building topical authority and entity coverage | $5K+/mo |
| Onely | Sites where technical structure is blocking AI crawler visibility | Custom |
| Siege Media | Brands that need content quality high enough to earn links on its own | $5K+/mo |
| Skale | Growth-stage sites needing AI citation movement in weeks, not months | $3K+/mo |
Not All AI SEO Agencies Are Doing the Same Thing
1. These agencies use AI to work faster
AI compresses research, generates content briefs, automates reporting, and monitors AI Overview citations. Every strategic and editorial decision still has a human behind it. For the specific tools these agencies use, see our AI SEO tools roundup.
In practice: AI clusters competitor keywords in minutes, generates a brief with heading structure and target questions, a human writer or editor produces the actual content, and AI tracks GSC impression trends and AI Overview citation rates weekly.
2. These agencies use AI as the replacement
These agencies use AI to generate content at scale, publish it, and report on article count as a KPI. This is the approach that produced 312 articles for a site worth $0.
According to Google’s helpful content guidance, quality raters look for genuine expertise and experience. AI-generated text produced without subject matter input fails these signals at scale. The manual action the Q4 2025 site received was a direct result.
Warning: Any agency that leads with content volume as a primary metric deserves scrutiny. “We publish 80 articles a month using AI” is not a value proposition. What matters is what those 80 articles produce in GSC impressions, clicks, and indexed coverage. If they cannot show you that data, they are selling outputs, not outcomes.
What I Ask Every Agency Before I Commit to Anything
Four questions consistently separate the legitimate camp from billing theatre within one conversation.
1. Show me GSC data for 3 active clients, not rankings.
Rankings can be cherry-picked. GSC impressions and click data come from Google’s own systems and are harder to misrepresent. Look for impressions growing over time and no cliff-edge drops around core update dates.
Red flag: the agency shows GA4 traffic screenshots instead of GSC. That is a deliberate swap. The same GSC review sits at the core of any acquisition due diligence process.
2. What does your editorial review process look like?
Legitimate answer: AI generates a first draft or brief; a subject matter editor rewrites for accuracy and depth; every published piece has a named author.
Red flag: “Our AI produces near-publish-ready content with minimal review.” That is the answer that produced 287 articles with fewer than 3 impressions each.
3. Do you track AI Overview citations separately from organic rankings?
According to BrightEdge’s February 2026 data, AI Overviews appear in roughly 48% of tracked Google queries. An AI SEO agency without a GEO or AEO tracking methodology is working on the 2023 playbook.
For local businesses, LocalGlyph tracks geo-grid Map Pack rankings alongside AI Overview citations across ChatGPT, Perplexity, and Google AI Mode in one dashboard. Check whether any agency you evaluate uses this level of visibility monitoring.
4. What do you do with content that generates zero impressions after 90 days?
Legitimate agencies have a defined process: update, consolidate, or remove. An agency with no content remediation process is building thin-content accumulation that triggers quality signals.
The fix, as outlined in our SEO content pruning service, is significantly more expensive than prevention.
Pro Tip: Before any sales call, run a quick site audit on a domain the agency cites as a client win. Check indexed pages versus pages generating impressions and look for thin content accumulation. Also run the agency’s own domain through Ahrefs or Semrush. If they are not ranking organically in their own niche, they have not proven their methodology on their own site.
The AI SEO Agencies Worth Considering
Each agency below cleared the four questions above. I checked their organic footprint, reviewed available case study data, and assessed how clearly they can explain their AI workflow versus their human editorial layer.
1. Vettted: When you need GEO and AEO work done without committing to a full retainer
- Best for: Online business operators who need specific AI visibility work done by vetted specialists, without committing to a 12-month agency contract
- Starting price: Project-based; see vettted.com for current rates
Vettted is a marketplace of SEO specialists with a less-than-5% acceptance rate. Their AI SEO/GEO service focuses on building brand authority and citation profiles across AI platforms: Google AI Mode, ChatGPT, Perplexity, and other generative search engines that are increasingly becoming primary discovery channels.
The model is modular. You commission specific, defined deliverables from a vetted specialist rather than signing a monthly retainer. If the work delivers, you commission more. If it does not, you are not locked in.
Getting cited in AI search systems requires a different skill set from traditional content production or link building. It involves entity consistency, structured citation patterns, and topical authority signals that AI language models use to determine what to surface.
Vettted vets specialists specifically for this capability, which means you are not picking from a general freelancer pool.
What this works well for: Sites that have already been through a bad AI content agency and need to rebuild AI visibility without restarting an agency relationship. Also useful for portfolio operators who need AI visibility work on one site without committing an agency to the entire portfolio.
Honest limitation: Vettted is a marketplace, not a fully managed service. You need to define the brief clearly and review deliverables. Operators who want zero project management on their end will need to factor that in.
2. Grow and Convert: When your traffic converts poorly, not just grows slowly
- Best for: Content-driven online businesses, SaaS, and any site where organic traffic needs to convert, not just accumulate
- Starting price: Approximately $8,000/month and above
Grow and Convert runs what they call pain point SEO: targeting keywords that indicate a buyer has a specific problem your product or service solves, rather than targeting high-volume informational terms. Most content-driven businesses accumulate traffic without converting it. Their AI workflow uses AI for keyword clustering and brief generation, while all content is human-written by writers with relevant subject matter experience.
Their own blog is the clearest proof of methodology. They publish case studies with actual GSC screenshots and named client domains. The organic footprint on their own site is strong, which answers question 3 before you even get on a call.
What I use them for: Sites where traffic quality matters more than traffic volume. If a site is getting 50,000 monthly visits but converting at under 1%, their pain point methodology is the right lever.
Honest limitation: At $8,000+/month this is a serious investment, not the right fit for early-stage sites under $2,000/month in revenue. They also work with a limited number of clients at any given time, so availability is not guaranteed.
3. Omniscient Digital: When you are building B2B topical authority from the ground up
- Best for: B2B SaaS and service businesses building topical authority for commercial and comparison queries
- Starting price: Approximately $5,000/month and above
Omniscient Digital was founded by Alex Birkett and Allie Decker, both former HubSpot growth leads. Their “Surround Sound” methodology is built around appearing everywhere a searcher looks during a buying decision: organic results, comparison pages, third-party reviews, and AI Overview citations. This maps onto how both traditional search and generative AI surface information.
Their AI workflow focuses on coverage mapping: using AI to identify every topic cluster and query type a potential buyer might search across the buying journey, then systematically building content that covers each node.
What I look for here: They publish original research on their own site and have a strong organic footprint in the B2B marketing niche. They can show GSC data. Their case studies name clients and document specific traffic outcomes with timelines.
Honest limitation: Primary focus is B2B. If your portfolio includes consumer-facing or niche review-style online businesses, this is not their strongest context.
4. Onely: When your site structure is quietly blocking AI visibility
- Best for: Sites where JavaScript rendering, crawlability, or structured data issues are blocking both traditional rankings and AI Overview citations
- Starting price: Custom, typically project-based or retainer for ongoing technical work
Onely is a specialist technical SEO agency that has published specific research on how AI crawlers extract information differently from Googlebot. Where most agencies treat technical SEO as a checklist (fix 404s, update meta tags), Onely works at the structural level: JavaScript rendering that blocks AI crawlers, entity ambiguity that confuses citation attribution, and content duplication that dilutes topical signals.
In 2026, sites that pass a standard technical audit can still be invisible to AI Overview systems because their content is not structured in a way that generative AI can extract cleanly.
Onely diagnoses and fixes this layer. For post-acquisition situations where standard crawl tools return clean results but AI visibility is low, this is the gap our website SEO audit tool breakdown covers in the acquisition due diligence context.
Honest limitation: Onely is a specialist, not a full-service agency. You need a separate partner for content strategy and link building. For portfolio operators who need a single vendor, this requires coordinating multiple relationships.
5. Siege Media: When you want content that earns links without an outreach campaign
- Best for: Brands and online businesses that need content assets with enough quality to earn organic backlinks as a byproduct
- Starting price: Approximately $5,000/month and above
Siege Media founded by Ross Hudgens has built a reputation on a specific thesis: content that is genuinely the best resource on a topic earns links organically, which compounds over time in a way that outreach-only link building does not. Their editorial standards are consistently referenced in the SEO community as a quality benchmark.
Their AI workflow uses AI for SERP analysis and brief generation. The content is produced to editorial standards that reflect genuine expertise, with explicit attention to E-E-A-T signals: author credentials, cited sources, and original research where applicable.
What I look for here: The Siege Media blog ranks well in a competitive niche and demonstrates the methodology on their own organic footprint. Their case studies show before-and-after GSC data rather than GA4 vanity metrics.
Honest limitation: Higher price point relative to output volume. If you need 50 articles in 90 days, this is not the fit. If you need 10 to 15 articles that will earn 200 to 300 organic links over 18 months, the math changes significantly.
6. Skale: When you need AI citation movement in weeks, not months
- Best for: Growth-stage SaaS and online businesses that need measurable AI visibility movement within 60 to 90 days, not 12 months
- Starting price: Approximately $3,000/month and above
Skale has built their 2026 positioning around GEO and AEO velocity: getting clients cited in AI Overview results faster than the 6 to 12-month runway that traditional backlink-based SEO requires. Their Atomic AGI tool handles programmatic AI SEO workflows, including entity consistency checks, citation structure optimization, and AI search platform monitoring.
They publish specific data on citation share movement timelines, typically 4 to 8 weeks for measurable AI Overview citation shifts. Engagements are structured on quarterly or month-to-month terms.
What this model fits: Sites where AI search visibility is the primary growth lever. If a site’s target audience is already using ChatGPT and Perplexity as their primary discovery channel, Skale’s GEO-first approach is more aligned to the actual traffic opportunity than a traditional link-building-forward strategy.
Honest limitation: The GEO-first methodology assumes a solid technical and content foundation already exists. Skale is not the right fit for sites with fundamental crawlability problems or a thin content profile. Those issues need to be resolved first, either through a specialist like Onely or a content cleanup process.
Quick Comparison Across All 6
| Agency | Best For | AI SEO Approach | Link Building | Starting Price |
|---|---|---|---|---|
| Grow and Convert | Content-driven online businesses and B2B SaaS | Brief generation and keyword clustering; human-written content | Yes (integrated) | $8K+/mo |
| Vettted | Operators needing AI SEO/GEO without a retainer | Citation profile building across Google AI Mode, ChatGPT, Perplexity | Specialist-dependent | Project-based |
| Omniscient Digital | B2B SaaS with topical authority goals | Surround Sound coverage mapping and entity planning | Yes (integrated) | $5K+/mo |
| Onely | Sites with technical AI extractability blockers | AI crawler optimization and structured data | Separate partner | Custom |
| Siege Media | Brands needing content that earns organic links | Brief generation and SERP analysis; editorial-first publishing | Yes (integrated) | $5K+/mo |
| Skale | Growth-stage SaaS focused on GEO and AEO velocity | Atomic AGI tool for programmatic AI SEO workflows | Yes (integrated) | $3K+/mo |
Things That Would Make Me Walk Away, Even From These Six
The vetting questions above apply to every agency on this list, no exceptions. Before signing with any of the above, run these checks.
- Content velocity as their primary KPI. If the pitch leads with article count rather than impressions, CTR, or AI citation rate, it is the wrong frame regardless of who the agency is.
- No explanation of their content remediation process. Ask what happens to content that generates no impressions after 90 days. No clear answer means thin content will accumulate.
- Testimonials without a verifiable named domain. GA4 screenshots are not verifiable. A named domain you can check in Ahrefs or Semrush is.
- 12-month contracts required upfront. Agencies confident in their methodology offer quarterly or month-to-month engagements after a defined setup period.
- No link building discussion. Content without authority-building is indexable but rarely competitive. For what the link building component should look like, see our link building services breakdown.
Picking the Right One for Your Situation
The Q4 2025 failure was not a failure of AI technology. It was a client who hired based on the pitch and an agency that optimized for billable output. Each of the six agencies above has demonstrated their methodology on their own organic footprint and can show GSC data for client work.
For AI-specific GEO and citation work without a full agency commitment: Vettted gives you access to vetted AI SEO specialists for defined deliverables, with no retainer required.
For content that compounds over time: Grow and Convert for revenue-intent content, Siege Media for link-earning content assets, Omniscient Digital for B2B topical authority.
For GEO and AI visibility specifically: Skale for velocity and citation movement, Onely for the technical layer that makes AI search citation possible on structurally complex sites.
For portfolio operators who want to track whether any of these agencies are moving the needle across multiple sites, SEOAnalyticsDashboard.com consolidates ranking data, traffic trends, and AI visibility metrics across an entire portfolio into a single weekly view, which removes the need to log into separate agency reporting dashboards.
Whatever you choose: require GSC access from day one, define what “results” means before you sign anything, and run a site audit 90 days in to verify the content being produced is generating impressions. See our keyword research tools guide for how to set up your own keyword tracking baseline before any agency starts work.
