Trunk Tools, founded in 2021 in New York by former carpenter Sarah Buchner, builds AI agents that read drawings, specs and project documents and answer questions from the field. It raised a $40 million Series B led by Insight Partners in July 2025, taking total funding to $70 million.
At a glance
| Price from | Custom |
| Best for | Commercial contractors with heavy document loads |
From Trunk Tools's own website.
What stands out
- Built by a founder from the trades
- Fast product releases
Worth knowing
- US commercial focus
- Price not published
How it ranks
Trunk Tools is ranked 5th of 10 in Best Construction Tech Startups (Lister Score 92.1).
#5 in Best Construction Tech Startups · Lister Score 92.1
Trunk Tools launched TrunkBid, an AI agent for subcontractor bid analysis, in March 2026..
| Rank | Best Construction Tech Startups | Score |
|---|---|---|
| 1 | Bedrock Robotics | 97.2 |
| 2 | ICON | 95.9 |
| 3 | Buildots | 94.6 |
| 4 | Higharc | 93.4 |
| 5 | Trunk Tools | 92.1 |
| 6 | OpenSpace | 90.8 |
| 7 | Monumental | 89.5 |
| 8 | Dusty Robotics | 88.2 |
| 9 | Built Robotics | 86.9 |
| 10 | Kojo | 85.5 |
Frequently asked questions
How does Trunk Tools rank on Lister?
Trunk Tools is ranked 5th of 10 in Best Construction Tech Startups (Lister Score 92.1).
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