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FounderSold

The open database of indie startup acquisitions under $1M. Know your worth before you sell.

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Data sourced from public listings. Not financial advice.

Home/About/Methodology

Data Methodology

How we source, verify, and maintain the FounderSold exit database. Transparency in data sourcing is foundational — every data point has a trail.

Data Sources

Exit data enters FounderSold through three channels:

Public Marketplace Listings

Completed listings on acquisition platforms — Acquire.com, Flippa, Empire Flippers, MicroAcquire, and similar — where the sale price and basic metrics were publicly disclosed at listing or upon completion.

Founder Announcements

Tweets, blog posts, newsletter issues, podcast appearances, and Indie Hackers posts where founders shared the details of their exit voluntarily. We link to the primary source whenever available.

Community Submissions

Direct submissions from founders through our Submit form. Submitted data goes through manual review before publication. Founders can choose how much detail to make public.

The Verified Badge

The Verified badge indicates that key financial metrics (sale price and/or MRR) have been cross-referenced against at least one independent source, or that the founder confirmed the data directly.

Unverified exits still appear in the database — they're labeled clearly. Partial data is always preferred to no data: an exit with only the category and approximate sale price range helps founders calibrate expectations even without the full breakdown.

Inclusion Criteria

An exit qualifies for FounderSold if it meets all of the following:

  • The business was indie / bootstrapped — no VC or institutional funding at exit
  • The sale price was under $1M (or the business clearly operated in the sub-$1M range)
  • At least the category and approximate exit year are known
  • The exit was a completed acquisition, not a fundraising round or asset sale in progress

We do not include funded startups, businesses sold for over $1M, or exits where the acquirer price was primarily for the team (acquihires without disclosed project value).

How Multiples Are Calculated

We use Profit Multiple as the primary valuation metric, consistent with standard practice in the indie acquisition market:

Profit Multiple = Sale Price ÷ (Monthly Profit × 12)

"Monthly profit" refers to Seller's Discretionary Earnings (SDE) — revenue minus operating costs, before owner salary add-backs. This is the standard the major acquisition platforms use.

We also track Revenue Multiple (Sale Price ÷ ARR) where data is available, though this is a secondary metric for the sub-$1M market where many businesses are non-recurring or mixed.

When MRR or monthly profit are estimated (e.g. derived from ARR), the exit is labeled accordingly. Estimated figures are never presented as verified. See our glossary for full definitions of each metric.

Data Updates & Corrections

The database is updated continuously as new exits are documented. Existing entries are corrected when more accurate information becomes available (e.g., a founder clarifies the actual sale price after a public estimate was recorded).

If you spot an error or have additional context for an exit in the database, use the contact link on any exit detail page or reach us at the email in our footer.

Limitations

No database of this kind is complete. Known limitations:

  • Private deals with no public disclosure are systematically underrepresented
  • Deals in non-English markets are underrepresented due to sourcing language bias
  • Older exits (pre-2019) have fewer verified data points as platforms were less standardized
  • Self-reported data may contain optimistic figures — we flag this where suspected

Despite these gaps, the data is directionally accurate and sufficient for market-rate benchmarking. This is not financial advice — treat all data as reference points, not prescriptions.

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