Key Takeaways
- • Mach Industries closed a $300 million Series C round at a $1.8 billion valuation, representing a nearly 4x increase from its $470 million Series B valuation just one year prior, reflecting rapid institutional momentum in defense technology.
- • The round was co-led by Infinite Capital and Ribbit Capital, with participation from Bedrock Capital, Sequoia Capital, and Khosla Ventures, bringing total funding to over $485 million since the company's founding 3.5 years ago.
- • Mach manufactures vertically integrated unmanned defense systems including the Viper (vertical-takeoff strike vehicle), Glide (high-altitude glider), and Stratos (airborne platform), with six weapons programs reportedly in active development across multiple platforms.
- • The company acquired Exquadrum for $50 million in April 2026, securing in-house propulsion and rocket system capabilities that integrate directly into Mach's manufacturing network (the "Forge"), reducing reliance on external subcontractors.
- • Mach has secured contracts with the U.S. Department of Defense spanning the Army, Air Force, and Special Operations Command, with headcount scaled to approximately 350 employees to support accelerated development and production capacity.
Summary
Mach Industries, a Huntington Beach-based defense startup founded 3.5 years ago, has closed a $300 million Series C funding round at a $1.8 billion valuation, according to announcements from the company and participating investors. The valuation represents a dramatic ascent from the company's $470 million post-money valuation following its Series B round in June 2025, demonstrating sustained institutional confidence in the autonomous defense systems market.
Infinite Capital and Ribbit Capital co-led the Series C, with Bedrock Capital, Sequoia Capital, and Khosla Ventures participating as secondary investors. The round brings Mach's cumulative funding to over $485 million, an exceptional capital velocity for a pre-revenue or early-revenue stage defense technology company. The previous $100 million Series B closure just one year earlier had already signaled strong institutional appetite for the sector.
Mach's business model centers on vertical integration of unmanned defense systems manufacturing. Rather than relying on traditional subcontractor networks, the company designs, manufactures, and assembles autonomous weapons platforms in-house. Its primary product portfolio includes the Viper (a vertical-takeoff strike vehicle), Glide (a high-altitude glider), and Stratos (an airborne platform). The company is reportedly developing six weapons programs spanning these platforms and additional systems, though specific program details remain undisclosed.
To strengthen in-house capabilities, Mach acquired Exquadrum, a 24-year-old propulsion and rocket systems specialist, for $50 million in April 2026. The acquisition directly integrated Exquadrum into Mach's manufacturing network, known internally as the Forge, eliminating outsourcing dependencies typical for companies at this stage. Mach has scaled its workforce to approximately 350 employees to support aggressive development and production timelines.
The Department of Defense is already a customer, with contracts spanning the Army, Air Force, and Special Operations Command, validating market demand for Mach's autonomous systems across multiple military branches. This customer foundation positions the company favorably within the U.S. defense industrial base expansion currently underway.
Infinite Capital and Ribbit Capital co-led the Series C, with Bedrock Capital, Sequoia Capital, and Khosla Ventures participating as secondary investors. The round brings Mach's cumulative funding to over $485 million, an exceptional capital velocity for a pre-revenue or early-revenue stage defense technology company. The previous $100 million Series B closure just one year earlier had already signaled strong institutional appetite for the sector.
Mach's business model centers on vertical integration of unmanned defense systems manufacturing. Rather than relying on traditional subcontractor networks, the company designs, manufactures, and assembles autonomous weapons platforms in-house. Its primary product portfolio includes the Viper (a vertical-takeoff strike vehicle), Glide (a high-altitude glider), and Stratos (an airborne platform). The company is reportedly developing six weapons programs spanning these platforms and additional systems, though specific program details remain undisclosed.
To strengthen in-house capabilities, Mach acquired Exquadrum, a 24-year-old propulsion and rocket systems specialist, for $50 million in April 2026. The acquisition directly integrated Exquadrum into Mach's manufacturing network, known internally as the Forge, eliminating outsourcing dependencies typical for companies at this stage. Mach has scaled its workforce to approximately 350 employees to support aggressive development and production timelines.
The Department of Defense is already a customer, with contracts spanning the Army, Air Force, and Special Operations Command, validating market demand for Mach's autonomous systems across multiple military branches. This customer foundation positions the company favorably within the U.S. defense industrial base expansion currently underway.
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