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Cofounderbase

Growth, documented.

Evidence-backed growth mechanisms for solo founders — adapted from real company systems, not generic case studies.

Find your system in 60 secondsGet a 14-day plan

The Brief turns your site, ICP, and constraints into a concrete growth engine read and a 14-day experiment — free.

Proof plays

Three mechanisms to steal this week

Real company case studies with a clear causal engine. Browse all companies

FAQ

What founders ask

Practical answers before you choose a growth system.

What is Cofounderbase?
An independent research index of evidence-backed company growth playbooks. Each case documents the causal mechanism, transferability score, and a steal-code pack you can adapt.
How is this different from generic case studies?
Every playbook separates sourced history from editorial inference, maps to one of 12 growth systems, and scores what will and will not transfer to your constraints.
What is a growth system?
A growth system is a repeatable causal engine — like invite loops, content SEO moats, or usage expansion — not a one-off growth hack. Cofounderbase indexes twelve of them so you can pick a motion that fits your constraints.
How does the quiz choose systems?
The quiz scores all twelve systems from your hours, budget, audience, and founder profile, then returns the top three with plain-language reasons. It is a constraint matcher, not a prediction of product-market fit.
When should I not copy a company playbook?
Skip a playbook when the transferability score is low for your hours or capital, when the preconditions do not match your product, or when the case depends on an advantage you do not have (distribution, brand, or regulatory moat).
Who is it for?
Solo founders and lean growth teams who need concrete distribution mechanisms — not motivational summaries.
Is it free?
Yes for the public research layer: company directory, growth systems, quiz, and lab notes. Forensic Brief generation is available without a paywall but may be rate-limited; sign-in can be required for persistence. See /pricing.md for machine-readable details.