Partsign Become a design partner

Supplier quality paperwork, checked in minutes — inside your building.

Partsign is an AI quality engineer for robotics, EV and drone teams. It reviews PPAP packages, first-article inspection reports and material certs against your drawings, and flags what’s missing or out of tolerance — without a single drawing leaving your network.

Become a design partner See how it works

Now recruiting 5 design partners in the Bay Area.

Example output Bracket assembly · PPAP package, Level 3 3 flagged
12.30 ±0.10 14 200.00 ±0.20 Ø6.00 ±0.05 NOTE 3 MATERIAL 6061-T6 DWG 4417 · REV C SHEET 1 / 1

Drawing, sheet 1. Dimension 14 is cross-checked.

  • Drawing
  • Ballooned dimensions
  • Inspection report
  • PSW
  • Control plan
  • Material cert

52 checks run49 within spec3 need your review

  1. Out of toleranceDimension 14

    Dimension 14: 12.43 mm, spec 12.30 ± 0.10 — out of tolerance.

    12.20 12.40 12.43
    Inspection report, p. 4Drawing, p. 1
  2. MissingPSW

    PSW missing signature.

    PSW, p. 1
  3. Cert mismatchMaterial

    Cert alloy 6061-T4, drawing calls 6061-T6.

    Material cert, p. 2Drawing, note 3

Disposition is yours. Partsign never approves a part on its own.

Example output with synthetic sample data, for illustration only.

Every new part arrives with a binder.

Hours per package.

A quality engineer cross-checks dimensional results, control plans, PFMEAs and certs by hand — line by line, against the drawing.

Misses become recalls.

One out-of-tolerance dimension or the wrong alloy on a cert slips through, and it shows up later as scrap, a line stop or a field fix.

Your data can’t go to the cloud.

ITAR, customer contracts and plain good sense keep drawings off third-party AI APIs.

Upload the package. Review only what matters.

  1. Drop in the package

    Drawing, ballooned dimensions, inspection report, PFMEA, control plan, material and process certs (PDF, Excel, scans).

  2. Partsign cross-checks it

    Every measured value against its drawing tolerance, every required PPAP element against your level, every cert against the spec.

  3. You get a findings list

    • Out of toleranceDimension 14: 12.43 mm, spec 12.30 ± 0.10
    • MissingPSW missing signature
    • Cert mismatchCert alloy 6061-T4, drawing calls 6061-T6

    Each finding links to the page it came from. You decide; Partsign never approves a part on its own.

Runs entirely on your hardware.

Partsign ships as a small appliance or a container for your own servers. Models run locally; nothing calls home; it works with the network cable unplugged. Built for teams with ITAR, CMMC or customer data-handling obligations.

  • No cloud API calls
  • Your models, your logs
  • Air-gapped install supported
  • Cloud option for teams that prefer it

Built for teams shipping hardware fast.

  • Robotics and automation
  • EV, e-mobility and charging
  • Drones and defense hardware
  • Contract manufacturers supplying them

Supplier quality engineers, NPI and program managers, and the people who sign the PSW.

Become a design partner.

We’re working with a small group of hardware teams to shape Partsign around real packages. We’ll run it on your sample packages — on your premises if you need it.

  • The pilot is free
  • A direct line to the founders
  • A say in what we build next

Thanks — we’ll reply within two business days.

Your request reached us.

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Who’s building this

Partsign is built by a hardware program manager who launched vehicle programs at an EV maker and an AI engineer who runs production AI systems without the cloud. We’ve lived the binder problem — now we’re automating it. Based in the San Francisco Bay Area.

Based in
San Francisco Bay Area
Stage
Early development
Recruiting
5 design partners