He sat on the side of the table that suffers through fund accounting for thirty years. Then he got up, walked around, and started building the tool that ends the suffering.
John Bowman co-founded Maybern, the New York company that calls itself the operating system for modern fund finance. His title there is Chief Business Officer, which is a tidy way of saying he is the one in the room who has lived the customer's pain.
That pain has a precise shape. Capital allocations, management fee tracking, credit facility management, and the waterfall calculations that decide who gets paid what when a fund distributes - this is the machinery of private markets, and for most firms it still runs on a stack of interlocking spreadsheets held together by one person who knows where the formulas hide. Maybern's wager is that a fund's system of record should not be a guess. Bowman spent decades being the person who knew where the formulas hid.
Before the startup, he was a founding member and Chief Financial Officer of Periphas Capital, the private equity firm launched in 2017 by Sanjeev Mehra, a founding member of Goldman's private equity group and a former colleague who recruited him. Before that came twenty-two years at Goldman Sachs as a Managing Director in Finance and Administration for the Merchant Banking Division. And before all of it, a first job auditing other people's numbers at Ernst & Young.
The arc reads like a complete tour of finance: count the numbers, allocate the numbers, run a fund's numbers, then build the software that does the numbers. Most people who reach Managing Director at a bank do not leave to join a seed-stage company and learn product roadmaps. Bowman did.
"Private funds deserve more than spreadsheets."
Maybern connects the back, middle, and front office of a private fund so finance teams get transparency, control, and real-time intelligence instead of a midnight reconciliation panic. Bowman co-founded it with two people who had built this exact thing once before.
Distributions and hypothetical liquidations, calculated automatically. The part of fund accounting most likely to be wrong in a spreadsheet, and most expensive when it is.
Capital allocation, management fees, and credit facility tracking in one place, so the fund's numbers stop living in a file only one analyst can open.
Co-founders Ross Mechanic (CEO) and Ashwin Raghu (CTO) built a fund accounting system at Cadre. Bowman brought the operator's view from the buy side.
Bar widths scaled to tenure. The shortest chapter may turn out to be the loudest.
Maybern's Series B was led by Battery Ventures, the kind of validation that turns a back-office tool into a movement. The pitch attached to the round was blunt: private funds deserve more than spreadsheets. The total Bowman and his co-founders have raised sits around $70 million.
Naming a category - Fund Management Software - is a founder's trick as old as marketing itself. It works only if the product actually sits in a gap. After a career inside that gap, Bowman would know whether it does.
Bowman started his career as an auditor, the job of checking whether other people's numbers were true. He has been suspicious of a sloppy ledger ever since.
Sanjeev Mehra, a founding member of Goldman's private equity group, pulled Bowman into Periphas Capital. Old colleagues tend to know exactly who they want.
His co-founders, Ross Mechanic and Ashwin Raghu, had already built a fund accounting system at Cadre. Bowman did not want to learn the problem; he wanted to scale the fix.
Reporting drawn from public sources including Maybern, LinkedIn, The Org, Equilar, and reporting on Maybern's November 2025 Series B. Facts unverifiable from public sources have been omitted.