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GC
Spreadsheet auditing · Berlin, Germany · backing since Mar 2026
Mostly experiments · 70 / 15 / 15growth · founder · platform

Finds the broken formula before your board does. Two years, still just me.

Run byGreta Cordes
Money made each month€1–2.5K holding flatManually verified · 29 Jul
People using it200–500 trending upManually verified · 29 Jul
Still there after two weeks40–45%Manually verified · 24 Jul
New customers each month10–25 trending upManually verified · 29 Jul
Customers lost each month5–10Manually verified · 29 Jul
Still there the next day70%+Manually verified · 29 Jul
Still there after a month35–50%Manually verified · 29 Jul

No updates yet. The first one lands at the end of this week.

The members’ room

Where backers and the founder talk.

Questions before the weekly call, arguments about which idea should run next, and the founder thinking out loud between updates. Open to anyone backing Gridcase, and closed to everyone else — including us, except where a decision it produced is published.

It opens with accounts. Until then there is nothing to sign in to and nothing to read, which is why there is no empty box here pretending otherwise.