Aiwyn
Startup

Aiwyn

Practice automation for larger CPA firms: engagement letters, billing, payments and collections, expanding into tax technology after raising $132m from KKR and Bessemer and buying QuickFee’s US payments business.

Founded2020, Charlotte, North Carolina
FoundersJustin Adams, Tanner Fritz, Pat Morrell
StageVenture-backed; the $113m round was announced without a series letter
Total funding$132m
Last round$113m, December 2024, from KKR and Bessemer Venture Partners
AcquisitionsQuickFee’s US payments business, September 2025
What it doesClient engagement, billing, payments and collections automation for firms, a practice management product (Aiwyn Practice: time, billing, projects and resource planning) and Aiwyn Tax, a core tax system rolling out through a waitlist
Traction840 firms at the end of 2025
PricingNot published; sold to firms
MarketsUS
PeersAnchor, Karbon, Ignition, TaxDome, Canopy

Funding

Announced rounds
US$113m
Round
Round, US$113m, December 2024, led by KKR and Bessemer Venture Partners

Why it matters

Aiwyn raised $113 million from KKR and Bessemer in December 2024, the largest round any practice management company has taken, then bought QuickFee’s US payments business and is moving into tax preparation with its own product. With 840 firms as customers it is the best-capitalised challenger to the incumbent firm software vendors.

Part of Accountio’s accounting technology coverage.