| Company | Share of responses | Answer Share | Citation Share |
|---|---|---|---|
| Rocky Top HVAC | 42.2% | 1.4% | |
| GENT Heating & Cool | 26.6% | 1.9% | |
| A-1 Finchum Heating & Cooling | 18.8% | 0.5% | |
| Advanced Heat AC & Plumbing | 17.2% | 0.6% | |
| Pioneer Heating & Air | 17.2% | 0.7% | |
| Central Illinois Heating & Air Conditioning | 17.2% | n/d | |
| Deljo Heating, Cooling & Plumbing | 15.6% | n/d | |
| AA Air Company | 14.1% | n/d | |
| Quality Contractor Network | 14.1% | n/d | |
| Smith Heating & Air | 14.1% | 0.3% | |
| LC Heating & Air | 12.5% | n/d | |
| 865 HVAC | 12.5% | 0.4% |
Every week, the same frozen set of 4 question phrasings is sent to OpenAI, Anthropic, Google Gemini, and Perplexity — through each provider’s official API, with active web search, never through a consumer chat interface.
Same market, same questions, repeated on a fixed schedule — not a single sample. No AI model is paid or influenced; this page reports what each one already says.
Answer Share — the share of measured responses that name a given company. 55.6% means the company appeared in 55.6% of the responses collected for this market.
Market concentration — the share of responses naming at least one of the top 3 companies: how fragmented or concentrated the answers are for this market.
Citation Share — the share of citations linking directly to a company’s own website, among companies whose domain we’ve matched. Shown as n/d where we haven’t matched a domain, or 0% where the domain is known but never cited directly — AI models often cite a review aggregator instead of the company’s own site.
The date at the top of this page is when this market was last measured. Numbers refresh weekly.