Xponent21
A Richmond agency that engineers AI search citations for contractors
- HQ
- Richmond, United States
- Founded
- 2015
- Team
- 11-50
- Regions
- North America
- Pricing
- From $10k Directory figures only: $10,000 minimum project and $200-$300/hr on Clutch, $10,000-$25,000 minimum and $225/hr on DesignRush.
- Stack
-
- CARL Intelligence
- llms.txt
- Schema.org markup
- WordPress
- Industries
-
- Home Services
- Healthcare
About Xponent21
Xponent21 is a Richmond, Virginia agency founded in 2015 that has pointed a full service practice at one question: whether an AI assistant names your business when a buyer asks. The method is published rather than implied. Its AI search work covers llms.txt, robots.txt audited for AI crawlers, FAQ schema across 200 pages, LocalBusiness and Service markup, and a three lever model it calls parametric memory, live retrieval and extractability.
The contractor evidence is one deep engagement. Comfort Heating, Cooling, Electrical and Plumbing ran for twelve months across 40 pages and 200 indexed FAQ pages, and the case publishes 32 keywords in top ten local pack results, 674,000+ search impressions, and an average position moving from 38 to 22. CARL Intelligence, the agency's own tool for measuring whether assistants recommend a brand, is included with every client.
Ratings elsewhere
Our verdict
Xponent21 fits a contractor or mid-market firm that wants to be the answer an AI assistant gives, and wants the work described rather than gestured at.
The Comfort Heating, Cooling, Electrical and Plumbing engagement runs a dated twelve months and publishes its mechanics: llms.txt, robots.txt audited for AI crawlers, FAQ schema across 200 pages, and LocalBusiness and Service markup, with 32 keywords in top ten local pack results behind a client-stated revenue lift above 50 percent. Where it thins out is the evidence base.
One Clutch review at 4.5 and eleven DesignRush reviews at an unbroken 5.0 is a small record for an agency founded in 2015, no price appears on its own site, and the headline revenue figure rests on the client's word.
Pros
- Publishes the generative search method rather than the label: llms.txt, robots.txt audited for AI crawlers, FAQ schema across 200 pages, and LocalBusiness and Service markup
- The Comfort Heating, Cooling, Electrical and Plumbing case runs a dated twelve months and reports 32 keywords in top ten local pack results and 674,000+ search impressions
- CARL Intelligence, a proprietary tool for measuring whether AI assistants recommend a client, comes with every engagement
Cons
- One verified Clutch review at 4.5. The second rating is eleven DesignRush reviews at an unbroken 5.0, which says less than a mixed record on a larger base.
- No price on its own site. The $10,000 minimum and the $200-$300 hourly band come from Clutch and DesignRush.
- The revenue lift above 50 percent is the client's own statement with no independent source.
- Its street address differs between its own site and both directory profiles, and its team size is published only by those directories.
Where Xponent21 ranks
- Ranked #2 in AI Marketing Agencies No change since 21 October 2026
Top three by industry
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