Which vendors the sources behind AI answers actually talk about.
When a contractor asks ChatGPT, Gemini or Perplexity which field service software to buy, the assistant reads the web and compresses it. Vendors with a small share of that source corpus get cut from the answer. This index measures that share.
Read it as a ratio, not a score: the vendor at the top of this table is named in the sources roughly 9× as much as the vendor in tenth place. That gap is what an assistant compresses away.
| # | Vendor | Share of AI sources | Questions covered | Avg. position |
|---|---|---|---|---|
| 1 | Jobber | 20% | 42/43 | 2.5 |
| 2 | Housecall Pro | 16% | 41/43 | 2.6 |
| 3 | ServiceTitan | 15% | 41/43 | 3.9 |
| 4 | Service Fusion | 7.4% | 35/43 | 5.0 |
| 5 | Workiz | 6.3% | 33/43 | 9.1 |
| 6 | FieldEdge | 5.8% | 30/43 | 5.9 |
| 7 | FieldPulse | 5.4% | 32/43 | 7.7 |
| 8 | ServiceM8 | 2.5% | 22/43 | 4.4 |
| 9 | Kickserv | 2.4% | 26/43 | 5.7 |
| 10 | GorillaDesk | 2.2% | 24/43 | 12.5 |
| 11 | BuildOps | 2.1% | 15/43 | 11.4 |
| 12 | simPRO | 2.0% | 21/43 | 8.6 |
| 13 | ServiceTrade | 1.5% | 16/43 | 16.0 |
| 14 | mHelpDesk | 1.0% | 16/43 | 7.4 |
| 15 | Zuper | 1.0% | 9/43 | 6.6 |
| 16 | Jobtread | 0.9% | 6/43 | 1.7 |
| 17 | Aspire | 0.9% | 9/43 | 2.2 |
| 18 | JobNimbus | 0.9% | 9/43 | 2.4 |
| 19 | Service Autopilot | 0.8% | 8/43 | 3.7 |
| 20 | ServiceMax | 0.8% | 11/43 | 9.5 |
| 21 | Fieldpoint | 0.6% | 9/43 | 10.1 |
| 22 | Yardbook | 0.6% | 7/43 | 4.2 |
| 23 | FieldPromax | 0.6% | 9/43 | 6.5 |
| 24 | Workyard | 0.5% | 3/43 | 5.0 |
| 25 | LMN | 0.4% | 2/43 | 3.5 |
| 26 | Synchroteam | 0.4% | 10/43 | 6.6 |
| 27 | Tradify | 0.4% | 6/43 | 8.8 |
| 28 | Commusoft | 0.4% | 5/43 | 7.8 |
| 29 | AroFlo | 0.2% | 5/43 | 12.0 |
| 30 | SingleOps | 0.2% | 3/43 | 7.0 |
| 31 | Praxedo | 0.1% | 4/43 | 4.0 |
| 32 | Arborgold | 0.0% | 3/43 | 2.0 |
| 33 | Skedulo | 0.0% | 2/43 | — |
These vendors were searched for and appear in none of the independent pages behind the buying questions above.
One page per question: who the sources name, and the exact pages behind it.
The index shows the share. The full audit shows the reason: every source that cites your competitors and not you, every question where you are invisible, and the ordered list of pages to fix first.
Email hello@thecorpusindex.com with your vendor name. How this is measured.