Your business partner is a marriage

Everybody wants a co-founder until they have one.

We've been partners long enough to have the scars. And the single most useful thing we ever figured out is embarrassingly simple: a partnership is a marriage with a P&L. Same rules. Same failure modes. Same reason most of them end.

The two ways it dies

Partnerships don't usually die from money. They die from one of two things:

You're too similar. Two visionaries is a band with two lead singers and no drummer. Somebody has to keep time. If both of you love the idea and neither of you loves the spreadsheet, the spreadsheet wins in the end — by killing you.

You make it personal. The fastest way to end a company is to tie a business decision to somebody's self-esteem. The logo isn't your face. The pricing isn't a referendum on your worth. The second a call stops being "what's right for the business" and starts being "whose idea was it," you're not running a company. You're running a feud.

What kept ours together

We're yin and yang, and we know it. One of us is the gas, one of us is the brakes. We stopped fighting over which was better and started being grateful the car has both.

And we made a rule we don't break: we make business decisions, not personal ones. When we disagree, we don't ask who's right. We ask what the business needs. It sounds cold. It's the warmest thing you can do for a company you both want to keep.

If you're picking a partner, don't pick the person most like you. Pick the person who covers the seat you keep leaving empty — and who can hear "you're wrong" without hearing "you're less."