Anthropic put a price on the packaged adviser stack last week, and the people who sell that software for a living were the least excited in the room. Look at what shipped and you can see who it was built for. If you run your own money, the tool is the cheap part and the checking is still yours.
Sooner or later someone suggests hiring one person to coordinate the accountant, the lawyer and the portfolio manager. Whether that's a hire or still you is a question of stage, not how much you have. What it costs, and the page worth writing before you look for anybody.
Most founders carry a number in their head, and many set it against the company's valuation. Carta's ownership ladder shows how little of that number is theirs by Series C, and why the version that survives the exit is the one written down early, on your own balance sheet.
Founders arrive at liquidity expecting to keep the pace of the business, and that pace is where money gets lost. Mindset first, then people, then four buckets that give every part of the money a job before any deal gets a yes. The order matters more than the picks.
One person can run a successful business, and founders stopped arguing about that a while ago. This piece takes the same idea to money: what a solo family office is, where it sits beside single and multi, and what running one looks like at $5M–$100M.
Most founders with $5M–$100M already run their money themselves, with professionals on call and no staff on payroll. That arrangement has never had a name. This week it gets one, and a standard to run to.
Somewhere in your wealth manager's paperwork you're either retail or professional. One word decides what you're offered, what you pay, and what protection you keep. How the line works, what the institutional side opens up, and when it starts to make sense.
Roughly seven million people hold between $5m and $100m, and the wealth industry has never named them. Why the bracket exists, why it keeps growing, and how founders inside it run their money.
Founders copy other people's wealth setups and find they don't fit. A minimum viable family office is five jobs in the right order, and the first is a page of writing that half of them never produce.
Founders count the pension and the index fund as the diversified side of the balance sheet. With the top 10 stocks at 44% of the S&P 500 and the seven biggest, all tech, at about a third, that money is often the same bet as the business.
The story going around is that AI finally lets a founder run their own money and skip the wealth manager. It has it backwards. AI is worst at the actual investment decisions, and best at making the people who make them cheaper to hire.
Most post-exit founders park their wealth in "balanced" portfolios that feel safe but hide fragility. The barbell approach — combining radical safety with calculated asymmetry — is a better model for wealth that needs to survive decades.
