Table of Contents
⚠ Disclaimer: This entry may be incomplete, out of date, or inaccurate. It is AI-maintained on a best-effort basis. Do not rely on it as a sole source — verify claims independently using the sources listed below.
Summary
Westmag (Western Magnetics Company) is a South San Francisco startup that says it designs and manufactures drone motors and robot actuators, with a drone motor at the core of every actuator. Its site lists drone motors in 20–100 mm stator sizes for 5–50 inch propellers (Kv 100 to 3,000, outrunner or inrunner) and robot actuators from 1 to 150 Nm at 24–48 V with 6:1–12:1 gearing, aimed at humanoid and mobile robots. It says it is ramping production and testing at “Factory 01” in South San Francisco with automated winding, stator stamping and coating, a “domestic + allied supply chain,” and NDAA-compliant status by default. The site names co-founders David Hansen (CEO) and Jordan Sanders (COO) and shows investor logos including Andreessen Horowitz, Founders Fund, Lux Capital, Menlo Ventures and NFDG, without explaining the relationships. It is a direct US-made peer for integrated actuator suppliers in the Actuators section, including Sentinel Automata.
Key Facts
- HQ: South San Francisco, California; first factory (“Factory 01”) also in South San Francisco
- Founded: Not stated
- Founders: David Hansen (Co-Founder and CEO), Jordan Sanders (Co-Founder and COO)
- Investors: Logos shown for Andreessen Horowitz, Founders Fund, Lux Capital, Menlo Ventures and NFDG; relationships not explained on the page
- Manufacturing: Automated winding, stator stamping and coating at Factory 01; “NDAA-compliant by default”; domestic plus allied supply chain; currently ramping production and testing
- Customers: None named
Products and Capabilities
- Drone motors: 20–100 mm stators, 5–50 inch props, Kv 100–3,000, outrunner and inrunner
- Robot actuators: 1–150 Nm, 24–48 V, 6:1–12:1 gearing, for humanoid and mobile robots
Notes
- The page does not say whether Westmag makes its own magnets; the OpenTree map family for it is not stated.
OpenTree Map Listing
Pinned on the OpenTree US component map at South San Francisco, CA (family on map: Not stated on map; grouping approximate). OpenTree pins rely on the company’s own website and are unverified.
Claim Verification
Claim: NDAA-compliant by default
Status: Unverified (company claim; no supply-chain documentation reviewed)
Supporting sources: