Startup
Aiwyn
Practice automation for larger CPA firms: engagement letters, billing, payments and collections, expanding into tax technology after a $113m round from KKR and Bessemer and the acquisition of Column Tax.
| Founded | 2020, Charlotte, North Carolina |
|---|---|
| Founders | Chris Furlong, Ellen Choi, Justin Adams, Pat Morrell, Tanner Fritz |
| Stage | Series A |
| Total funding | $127m |
| Last round | Series A, $113m, 2025, from KKR and Bessemer Venture Partners |
| Acquisitions | Column Tax, November 2025 (embedded tax filing, $27m raised) |
| What it does | Client engagement, billing, payments and collections automation for firms, with a PracticeOS roadmap and a tax preparation product built from Column Tax |
| Traction | More than 100 of the top 500 US CPA firms |
| Pricing | Not published; sold to firms |
| Markets | US |
| Peers | Anchor, Karbon, Ignition, TaxDome, Canopy |
Why it matters
Aiwyn raised $113 million from KKR and Bessemer, the largest round any practice management company has taken, and then bought Column Tax to move into tax preparation. With more than 100 top-500 firms as customers it is the best-capitalised challenger to the incumbent firm software vendors.
Updated September 2026.
Part of Accountio’s accounting technology coverage.
