Westmag

About Westmag

Westmag, short for Western Magnetics Company, is a manufacturer focused on producing drone motors and robot actuators within the United States. The company was co-founded by CEO David Hansen and COO Jordan Sanders and established in 2025. In June 2026, Westmag emerged from stealth with $11 million in seed funding in a round led by Andreessen Horowitz, with participation from Founders Fund, Lux Capital, NFDG, and Menlo Ventures. Positioning itself as a key domestic supplier, Westmag aims to address the supply chain vulnerabilities and innovation bottlenecks caused by reliance on foreign-made components in the rapidly growing American drone and robotics industries. The company's strategy involves onshoring production and vertically integrating its design, manufacturing, and supply chain. Its initial factory, Factory 01, is located in South San Francisco, where it designs, automatically winds, assembles, and validates its motors and actuators on an integrated production platform. This approach is intended to provide American and allied drone and robotics companies with a reliable and cost-effective domestic component supply. Westmag's business model is built on scaling production to meet high-volume demand. The company has initially partnered with select high-volume customers through supply offtake agreements to ramp up its industrial capacity. With a production line already ramping, Westmag is working to fulfill initial orders for hundreds of thousands of units. The company plans to leverage this foundation to introduce a broader range of standardized products for lower-volume customers. By investing upstream in subcomponent production, such as steel stamping and rare earth magnet finishing, Westmag seeks greater control over its bill of materials and cost structure. Its supply chain is focused on sourcing from the U.S. and allied nations like Japan. The company's products are described as the "muscle of physical AI," serving as the core components that enable movement in machines like aerial drones, humanoid robots, and other autonomous systems. Westmag is currently ramping up production to serve leading companies with millions of motors and actuators annually.