Atomic Machines
AI-native manufacturing system that builds micro-machines directly from code
Atomic Machines is an Emeryville, CA-based hard-tech company that emerged from six years in stealth in October 2026 with the Matter Compiler, an AI-native, all-digital manufacturing system that builds working micro-machines directly from code - no molds, masks or fixed tooling - with moving parts, multiple materials and features down to single-digit microns, measuring and correcting every step in real time. Its first product, PrimeSwitch PS-150, is an electromechanical power relay that opens in 50 microseconds (about 1,000x faster than a conventional contactor), aimed at AI data centers moving to 800-volt DC power. Founder and CEO Jeff Holden was Amazon's tenth engineer, built Amazon Prime, and was Uber's first chief product officer.
Other Hardware
📍 Emeryville, CA
Current Valuation
Private
PRIVATE
IPO Outlookprivate
Is Atomic Machines going public?
No. Atomic Machines is private and has not filed to go public. There is no S-1 on file.
What is Atomic Machines' valuation in 2026?
No confirmed valuation is on record for Atomic Machines. The roster shows funding and investors where they are public; it does not estimate a mark.
Has Atomic Machines filed an S-1?
No public S-1 is on file for Atomic Machines.
Who are Atomic Machines' investors?
Atomic Machines' investors include OneIM, Gigafund, XTX Ventures, KAS Venture Partners, Valor Equity Partners, Tru Arrow Partners and 3 more.
How much has Atomic Machines raised?
Atomic Machines has raised $250M in total.
Is Atomic Machines publicly traded — can you buy Atomic Machines stock?
No. Atomic Machines is a private company — its shares are not listed on any exchange and there is no ticker. The routes to exposure are pre-IPO secondary marketplaces and funds (accredited investors), employee tender offers when the company runs one, and public companies with read-through exposure. QuantLogix maps every route it can verify for Atomic Machines on its Pre-IPO Access Desk.
Answers are derived from the roster record shown on this page — filing status, last round and confirmed marks. Where the record is silent, the answer says so rather than guessing.
Company Profile
Growth
Pre-revenue / early access: PrimeSwitch PS-150 with early-access data-center customers (Oct 2026)
Fundraising Status
Emerged from stealth 2026-10-07 with $250M raised to date across undisclosed rounds - not a new $250M round. No round breakdown, lead investor or valuation disclosed.
privateTotal raised $250M
Vertical Intelligence — AI / ML
No verified Hugging Face organization found for Atomic Machines — no attributable open-model footprint. Closed-weights labs are common; this is a distribution signal, not a capability judgment.
Checked huggingface.co as of 2026-10-08. Re-checked weekly.
Talent Signal
Hiring data for Atomic Machines has not been collected yet — the monthly talent sweep hasn't reached this company. Check back soon.
Investors
OneIM · Gigafund · XTX Ventures · KAS Venture Partners · Valor Equity Partners · Tru Arrow Partners · Construct Capital · Sozo Ventures · The Regents of the University of California
Products
- Matter Compiler (AI-native micro-machine manufacturing system)
- PrimeSwitch PS-150 (50-microsecond electromechanical power relay for 800V DC data centers)
Competitors
Silex Microsystems
AIManufacturingMicro-MachinesMEMSHard TechDeep TechAI InfrastructureData Center PowerOut of StealthRecently Funded
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of recent date. Refreshed quarterly.