Our Story
Built for the firms
the industry overlooked.
For years, midsize firms got the short end of the software deal. Enterprise tools were built for the giants and priced that way. Small-firm tools ran out of room the moment a firm started to grow. The firms in the middle, the ones with real complexity and real ambition, were left to duct-tape systems together and hope the numbers lined up.
Centerbase. Built with ♥ for midlaw.
The problem we set out to solve.
A managing partner should never have to wonder whether the numbers in front of them are right. Yet that was the daily reality for most midsize firms. Duplicated data lived in separate systems. Reports were a month behind. Every close felt like detective work.
We believed a firm this size deserved the power of legacy practice management with the flexibility of the cloud. In addition, we believed it should be configurable enough to match how each firm actually works, instead of forcing the firm to bend around the software.
What we built.
Centerbase brings billing, trust and firm accounting, timekeeping, intake, document management, and daily operations into one connected platform. All powered by AI. Automation cuts the manual work. Accuracy holds across trust and firm accounting. Reporting turns raw activity into decisions a partner can make with confidence and clarity.
Centerbase is backed by Mainsail Partners, a growth equity firm with offices in Austin and San Francisco that partners with bootstrapped, founder-led B2B software and AI-enabled companies. Mainsail invests in a concentrated portfolio and brings a dedicated growth team spanning product, sales, talent, and AI to help its companies scale into vertical market leaders.
Today, our AI-powered platform runs the business of law for midsize firms across the country. We keep adding to it, most recently with Centerbase IQ™, the intelligence layer that turns firm data into answers.
Where we are headed.
The Centerbase team has deep expertise in midlaw. It's in our DNA. That experience drives innovation no other legal tech can match. Our vision is an AI-powered, elegant tech that is trusted as the core of midsize firms. And that also means staying restless about what comes next, because the firms we serve are not slowing down and neither are we.