Adaptive raises $30M Series B led by Tidemark for construction accounting agents
Announced · Published · By Contractor AI Shop
Adaptive, which builds AI agents for construction job costing, AP, billing and WIP, raised a $30 million Series B led by Tidemark, bringing total funding to $57 million. The company claims more than 750 construction companies use it. It says a person reviews every agent action before posting.
Key facts
- Adaptive announced the $30M Series B on September 17, 2026, led by Tidemark with Emergence Capital, Andreessen Horowitz, Pathlight, Definition and 3KVC. Total raised is $57 million. Adaptive
- Adaptive claims more than 750 construction companies, from $5 million to $1 billion in revenue, use it across 10+ accounting systems including QuickBooks and Sage Intacct. Adaptive
- Exchange reported Adaptive's release says the agents never post to the general ledger on their own, and a person reviews every action. Exchange
- The Clarity also reported the Tidemark-led $30 million round. The Clarity
Our take: what it means for contractors
If your office still keys invoices into QuickBooks by hand, this category is worth a demo. Since a person approves every entry, the time savings depend on how clean your cost codes are. Fix your coding first, then trial it on one month of AP.
What we don't know yet
- Pricing
- Valuation
- Independent data on time saved
Sources
- Adaptive · Why We Built an AI Project Accountant, and Raised $30M to Build More of It · 2026-09-17 · Primary
- Exchange · Adaptive Raised $30M For Accounting Agents. A Human Still Posts Every Entry. · Secondary
- The Clarity · Adaptive raises $30m led by Tidemark, treats construction accounting as a data-collection problem · 2026-09-20 · Secondary