Westmag Raises $11M to Challenge China's Actuator Lock
Key insights
- China holds nearly 90% of the humanoid robot market and 92% of the first responder drone market, with actuators as the core chokepoint.
- Actuators account for 40% to 60% of humanoid robot production costs, making them the highest-cost single component category in the supply chain.
- Westmag targets domestic manufacturing in South San Francisco; Atlas bets on Philippines production, both targeting 13,000 to 18,000 humanoid units annually.
Why this matters
Actuators representing 40% to 60% of humanoid robot production costs means any US humanoid robotics buildout is structurally constrained by whichever country controls actuator supply. Chinese manufacturers already hold nearly 90% of that market, creating a single-point-of-failure dependency for American robotics companies including Figure and Agility. The competing models from Westmag and Atlas offer the first concrete evidence of how US startups propose to break that dependency, making their production ramp and unit economics the clearest leading indicators of whether domestic or allied-nation supply chains can credibly displace Chinese suppliers.
Summary
China controls nearly 90% of the global humanoid robot market and 92% of the state and local first responder drone market. The chokepoint isn't semiconductors. It's actuators, the motion components that eat up 40% to 60% of a humanoid robot's production cost.
Two US startups are betting on different fixes. Westmag, led by David Hansen and Jordan Sanders in South San Francisco, is building domestically at scale, betting volume compresses the labor cost premium. Atlas Motion Systems, founded by Tom Baron, Christian Mochen, and Carlo Dela Rosa, designs in California and manufactures in the Philippines, a US treaty ally.
Essentially: (Westmag, Atlas Motion Systems) represent the two competing US answers to a supply chain that runs through China.
- Westmag raised an $11M seed round led by Andreessen Horowitz; Atlas raised $4.5M in pre-seed funding.
- The humanoid market totaled 13,000 to 18,000 units in 2025, with startups Figure and Agility betting on explosive growth.
Which model succeeds will determine whether American robotics can build out on domestic or allied manufacturing rather than on Chinese suppliers.
Potential risks and opportunities
Risks
- If Westmag cannot hit competitive unit costs at scale, humanoid manufacturers Figure and Agility face continued dependence on Chinese actuator suppliers despite the $11M domestic investment
- Atlas's Philippines manufacturing concentration adds geopolitical exposure if US-China tensions extend to Southeast Asian treaty allies, potentially cutting off the primary allied-nation supply alternative
- The humanoid market at 13,000 to 18,000 units in 2025 may remain too small to generate the volume either startup needs to achieve cost parity with Chinese suppliers before seed-stage funding runs out
Opportunities
- US humanoid startups Figure and Agility gain negotiating leverage with Chinese actuator suppliers if Westmag or Atlas can demonstrate credible alternative sourcing at competitive quality
- Andreessen Horowitz, leading Westmag's $11M seed, is positioned to follow on if domestic production targets are hit as the humanoid market scales toward the explosion Figure and Agility anticipate
- Philippine contract manufacturers and industrial facilities gain a new US defense-adjacent category of business as Atlas scales, potentially attracting additional robotics companies seeking allied-nation sourcing
What we don't know yet
- No unit-cost comparison against Chinese actuator manufacturers is provided for Westmag or Atlas at their stated production scales, leaving the price-competitiveness thesis unverified
- Whether Atlas's Philippines-based manufacturing qualifies for US federal procurement preferences or defense-adjacent contract eligibility is not addressed in the article
- Neither Westmag nor Atlas disclosed which humanoid robotics customers, including Figure or Agility, have placed or committed to orders
Originally reported by corememory.com
Read the original article →Original headline: This Is Why America Can't Have Robots And Other Nice Things — Actuator Supply Chain Is the Chokepoint