Methodology
What belongs in this ledger, and how it's sourced.
Inclusion criteria
An entry qualifies when the company achieved undisputed market traction — real scale, an acquisition at a meaningful value, or clear category leadership; the origin record is publicly documented from at least four independent sources; and the first-traction story contains a transferable mechanism, not just favorable circumstance.
Excluded: companies whose traction story is materially disputed or under active litigation, and stories that depend on non-public information we can't verify or cite.
The confidence convention
Origin stories get retold and polished, and numbers drift between interviews. The launch price and first-100-customers fields on every catalog card carry an explicit confidence marker rather than being stated as flat fact:
- ●Recorded — from a primary document: an S-1 filing, a contemporaneous announcement, a dated blog post.
- ◐Recounted — from founder or operator interviews and retrospectives. Most fields in this ledger carry this marker.
- ○Estimated — triangulated from multiple secondary sources where no primary record exists. Used sparingly.
No field is invented to fill a gap. Where the record genuinely doesn't support even a recounted-quality claim, the entry says so rather than guessing.
Sourcing standard
Every entry cites a minimum of four independent public sources, listed at the bottom of the entry page. Facts are paraphrased throughout; direct quotes are limited to under 15 words, one per source, always attributed — nothing is reproduced verbatim at length.
Entries whose public source base is thinner than the ledger's usual standard are flagged explicitly on the entry page itself, and held out of the gallery, patterns, and motion-page counts until a human reviewer confirms the facts and strengthens the citations.
Known limitation: survivorship bias
This ledger only records companies that reached undisputed market traction — it cannot, by definition, show you the much larger number of companies that tried a similar motion and failed. For the other half of the record, visit the Failure Museum, which documents market entries where the same motions — or their absence — are part of what went wrong.
Update cadence
New entries are added roughly monthly, weighted toward channel-led and outbound-led B2B stories — the rarest motions in the public record, and the most directly relevant to the buyers Mustard Seed works with.
Corrections
If you were part of one of these companies and a detail here is wrong or missing context, we want to fix it. Send a correction with a source and we'll review and update the entry.
Submit a correction →Citation
Mustard Seed Solutions. "The Traction Ledger." Accessed at mustardseedmt.com/traction-ledger.