TypeSafe AI

What we have established three decisions, kept apart

1. 1 Identity verified Yes

   The company’s own domain, content-verified, plus the law firm that advised the round announcing it on its own site. No step relies on the name alone.

   • typesafe.ai title reads "Home - TypeSafe AI" (fetched 2026-10-11T08:13:32Z)
   • typesafe.ai AND typesafe.ai/careers both link jobs.ashbyhq.com/typesafe-ai and no other board - ownership proven from the company’s own pages
   • wsgr.com’s own insight page: "Firm advises TypeSafe AI on $870M Series A led by a16z at $7.5B valuation"
   • a16z general partner Martin Casado joining the board, per coverage
2. 2 Evidence sufficient to publish Yes

   The inclusion bar: two or more independent sourced evidence families. This profile is published and listed. It is a statement about how much evidence we hold, and about nothing else.

3. 3 Fit for a seed/Series-A sourcing buyer Qualified

   Institutional venture backing and a stage band inside seed..Series A are both evidenced below.

   Both legs of the unchanged rule hold. (a) Andreessen Horowitz is a named institutional venture firm and the round’s lead, stated by the law firm that advised the transaction and corroborated by several outlets; its general partner took a board seat. (b) Every source states SERIES A for the latest financing event (2026-10-09), and the $40M DCVC-led seed of 2026-09-15 is earlier and smaller, so nothing unlabelled sits after a labelled round. The stage label is VERIFIED and stands: J ruled that a large Series A is not automatically late-stage, and no check-size or valuation mandate exists to test it against.

   Venture backing: evidenced · Stage band: series_a - stated by the advising law firm and by multiple outlets for the 2026-10-09 event, the latest financing event known to us

   • wsgr.com ↗ — The advising law firm’s own announcement. Supports the amount, the lead, the stage word and the valuation. A transaction participant, so first-party for the deal and NOT independent of it.
   • typesafe.ai ↗ — The company’s own careers page, linking the exact Ashby board the hiring evidence came from. Independent of the funding announcement: it supports only that the company is operating and staffing.
   • jobs.ashbyhq.com ↗ — Its own ATS, read as JSON: 10 live postings, 3 of them engineering.

   What the filing alone says

   NOTHING - there is no SEC filing in evidence. This company reached us as a MISATTRIBUTION: an evidence gate found the round and filed it under the law firm named in the transcript, so the company that raised was never created.

   What we add

   The company itself, recovered from evidence we already held but had attached to the wrong party; a content-verified domain; the $870M a16z-led Series A correctly attributed; and 10 live postings from its own Ashby board, corroborated against its own careers page. Two sourced families, which is why the unchanged inclusion bar published it.

   Still unknown

   • WHETHER IT IS RAISING AGAIN. Searches found nothing after 2026-10-09; the round is two days old. That is four empty searches, not evidence that no raise is underway.
   • The customer claim. The company says roughly a third of the Fortune 500 use it and names none of them; we have not verified it and do not repeat it as fact.
   • One outlet (OneBullEx) says the amount was NOT disclosed, which conflicts with the law firm’s own $870M figure. The law firm is the better-placed source and is what is recorded, but the conflict is real.
   • Whether an $870M "Series A" belongs in a seed/Series-A mandate at all - see the Hermes dissent below.

   Action it supports

   A current one, unlike the other companies in this index: the round closed two days before assessment, so this is live pipeline rather than a historical profile. What it is NOT is early - a16z announced it, the trade press carried it, and we read it from the advising law firm’s own website.

   Our arrival vs public

   2 DAYS. The Series A was announced 2026-10-09 and the entity was created 2026-10-11T08:11Z. That is the shortest gap in this index by a wide margin - and it is still ARRIVAL LATENCY, not advance notice. The announcement was public first.

   Research time

   ~20 minutes of elapsed execution time for the whole A22 correction across 23 rows, of which this company is one. Elapsed time, not compute cost.

   Unresolved

   • THE SIZE DISSENT IS WITHDRAWN (J, 2026-10-11): "A large Series A is not automatically late-stage. Preserve a verified stage label." Hermes had argued an $870M Series A must really be late-stage and refused the mandate fit; that reasoning is rejected, because NO check-size or valuation mandate has been supplied and neither a reviewer nor I may invent one. The stage label is verified and stands.
   • BUYER SUITABILITY, STATED SEPARATELY FROM STAGE. What the evidence establishes: the latest financing event is labelled Series A by the law firm that advised it, the lead is a named institutional firm, and the company is hiring. What it does NOT establish: that the company is raising now, or anything about fund size, ownership available or terms. Suitability for a particular buyer cannot be judged from this record alone, and no mandate parameter has been supplied against which to judge it.
   • INDEPENDENTLY VERIFIED against primary sources on 2026-10-11 (Hermes, pass 2): identity, announcement, amount, currency, stage, date and the company-to-board link all CONFIRMED with excerpts; nothing in the deployed record unsupported. CURRENCY is the one inference: the source writes "$870 million", not "USD", and USD rests on a US law firm announcing a US-led round for a San Francisco company. Strong, but contextual rather than stated.
   • The ATS carries postings dated 2026-03-06 and 2026-07-13, which PREDATE both the reported 2026-09-15 stealth exit and the Series A - so the hiring evidence is not downstream of the funding announcement, and the company was operating months before it was public.
   • The company went from stealth to a $7.5B valuation in under four weeks. Nothing in our evidence explains that, and a buyer should ask what the $40M seed investor saw.

   What would overturn this: A source stating a later financing event with a different stage band, evidence that a16z did not lead, or a decision by J that a size/stage coherence test applies - which would move this to not_a_fit on mandate rather than on evidence.

   Assessed 2026-10-11 for seed/Series-A sourcing.