Private Capital Runs on Spreadsheets. That Ends Now.
Venture, private equity, real estate, and credit all run on the same broken back office. The fix is not another point tool. It is one operating system.
By Michael Kaufman, founder of archstone and vc beast
Every private fund in the world runs on software that was never built for it. The capital call goes out as a PDF attached to an email. The waterfall lives in a spreadsheet that one person understands. The LP report gets assembled by hand, the quarter after the quarter it describes. The cap table sits in a different tool than the bank, which sits in a different tool than the tax workpapers. Nobody designed this. It accreted.
I have spent the last few years building Archstone, software for the people who run these funds. The thing that struck me was not how hard fund operations are. It is how similar they are across asset classes that insist they are different.
The same plumbing, four times
A venture fund calls capital, deploys it, marks it, reports it, and distributes it. So does a private equity fund. So does a real estate fund. So does a credit fund. The instruments differ. The mechanics do not. Capital comes in against commitments. It goes out against opportunities. Returns flow back through a waterfall to the people who are owed them. Everything in between is record-keeping, reconciliation, and reporting.
We have convinced ourselves these are separate worlds because the people in them wear different uniforms. A VC and a credit manager will tell you they have nothing in common. Their back offices say otherwise. Both are stitching together a fund administrator, a spreadsheet, a document portal, a bank login, and an accountant who appears at quarter end. Both pay a fortune for the privilege of doing it badly.
Why it stayed broken
Fragmentation persisted because every layer was sold separately and priced for institutions. Fund administration is a service business. Audit is a service business. Tax is a service business. Banking is its own silo. Each one solved its slice and had no reason to talk to the others. The fund manager became the integration layer, by hand, forever.
That arrangement worked when funds were large and rare. A multi-billion-dollar fund can carry a back office and a roster of providers. But the part of the market that grew fastest is the opposite: smaller, more numerous, faster-moving managers. Emerging VCs. Independent sponsors. Single-asset real estate vehicles. Credit shops spun out of larger firms. These managers carry institutional obligations and almost none of the institutional infrastructure. They run real money on borrowed tooling.
One operating system, not ten tools
The answer is not another point solution. The market does not need a slightly better capital-call tool. It needs the capital call, the waterfall, the reporting, the document room, the fund administration, the banking, and the tax workflow to live in one system that understands they describe the same fund.
That is the bet Archstone makes. One operating system for private capital. Not vertical software for VCs with everything else as a someday-maybe market, but a single core, because the core genuinely is the same. The asset class becomes a configuration, not a different product.
The precedent is not a guess
We have watched this movie. Stripe started with a payments API and became Connect, then Atlas, then Treasury, then Tax. Carta started with cap tables and became fund administration, then 409A valuations, then equity tax. In both cases the company earned the right to the next layer by owning the first one well, then absorbed the services that used to be sold around it.
Private capital is the same shape of opportunity, earlier in its arc. The fragmented providers are the incumbents. The fund manager doing integration by hand is the pain. The wedge is the operating layer. The expansion is everything currently billed by a separate firm at a separate markup.
Why now
Two things changed. The number of funds went up and keeps going up, which turns the broken back office from a boutique nuisance into a mass-market problem. And software can now do work that used to require a person at quarter end. I am careful here, because the interesting part is not the technology. It is that the technology finally makes the unbundling economic. The work a fund administrator does can increasingly happen inside the system where the fund already lives, in real time, instead of after the fact by an outside team.
I am not impressed by that for its own sake. I am interested in what it unlocks: a manager who can run a professional fund without assembling five vendors and a spreadsheet. That is the product. The rest is implementation.
What this means if you run a fund
Expect the seams between your tools to disappear. Expect to stop paying separate firms to move the same numbers between systems. Expect your LPs to get better information faster, because the information will not be reassembled by hand. And expect the cost of running a fund to fall toward the cost of the software, not the cost of the services stacked on top of it.
Private capital ran on spreadsheets and email because nobody made it run on anything better. That is a sentence about the past.
We are building the other half.