Venture capital funding in Los Angeles-area defense technology surpassed $4 billion in 2025, more than double the amount raised in 2024, as the South Bay and surrounding communities have assembled a startup cluster that now competes directly with Northern California’s long-established defense innovation ecosystem. The concentration is measurable: 38% of all venture capital invested in Los Angeles in 2025 went to military and aerospace companies, more than any other industry in the region, according to PitchBook data. Half of all companies that reached unicorn status in Los Angeles this year belong to the space and national security sector. The CBRE Greater Los Angeles Aerospace & Defense Report found that Los Angeles County companies received $315 million in direct DARPA funding in fiscal year 2024, more than any other county in the nation, with only Fairfax County, Virginia, coming close at $261 million.
- Venture capital funding in LA-area defense tech surpassed $4 billion in 2025, more than double 2024 levels; 38% of all LA venture funding went to military and aerospace companies
- The aerospace and defense sector added 11,000 jobs to Los Angeles County between 2022 and 2024, with an average wage of $141,110, more than twice the county average
- Los Angeles County received more direct DARPA funding than any other U.S. county in FY 2024, at $315 million, representing 16% of all funding nationwide
- Half of all satellites and vehicles currently in space were manufactured in El Segundo; South Bay unicorns account for 88% of total unicorn value in Los Angeles
- Venture capital now accounts for 65% of all investments in the defense sector in 2026, a historic reversal for an industry once funded almost entirely by government contracts
The South Bay’s Geographic and Industrial Advantages
The defense tech cluster forming across El Segundo, Hawthorne, Long Beach, Torrance, and Carson draws its strength from infrastructure that no other U.S. region can replicate at the same density. The South Bay sits between Vandenberg Space Force Base to the north, Edwards Air Force Base and the Mojave Air and Space Port to the northeast, the ports of Los Angeles and Long Beach to the south, and the U.S. Space Force’s Space Systems Command headquarters in El Segundo. The Jet Propulsion Laboratory in Pasadena, managed for NASA by Caltech, operates within 30 miles. USC, UCLA, and Caltech all run aerospace and engineering programs that feed the local talent pipeline.
El Segundo in particular has emerged as the geographic center of the cluster. The city hosts the second-highest density of Ph.D. holders in California, according to Los Angeles County Economic Development Corporation data, and industrial vacancy sits below 2%, reflecting demand from defense startups competing for high-bay manufacturing space. Half of all satellites and vehicles currently in space were manufactured in El Segundo, a statistic that connects the city’s current startup activity to decades of production history at legacy contractors who built the facilities, supply chains, and engineering culture that new entrants now draw upon.
The LAEDC reported that the aerospace and defense sector generated 58,700 jobs across Los Angeles County, with 11,000 added between 2022 and 2024 alone. Those jobs carry an average wage of $141,110, more than twice the county average, making the sector a significant contributor to high-wage employment in a regional economy more commonly associated with entertainment, tourism, and logistics.
The Startups Driving the Acceleration
The companies fueling the cluster span hardware manufacturing, autonomous systems, missile technology, and space infrastructure. Castelion, based in El Segundo, has raised nearly $500 million and achieved a $2.82 billion valuation after winning a Department of Defense agreement to produce 500 units of its Blackbeard low-cost hypersonic missile. Advanced Manufacturing Company of America (Amca), also in El Segundo, raised $300 million in a Series B round in late May 2026 and crossed the $1 billion valuation mark just 18 months after its founding, making it one of the youngest unicorns in the defense sector.
Chaos Industries, based in Hawthorne, raised $510 million in a single round in November 2025 and has raised more than $1 billion since its founding in 2022. Culver City-based Apex raised $200 million in May 2026. Singularity Defense Corp., a three-year-old El Segundo startup building missile interceptors, announced an $80 million Series A in mid-July 2026 led by Khosla Ventures and Felicis, valuing the company at $400 million. In Long Beach, Vast is fabricating components for what could become the first commercial space station to orbit Earth, operating out of a warehouse near the former Boeing C-17 production facility.
The capital flowing into these companies reflects a broader shift in venture capital attitudes toward defense. Venture firms now account for 65% of all investments in the defense sector in 2026, a historic reversal for an industry that limited partners once avoided on moral grounds. Andrew Kreitz, co-founder of El Segundo-based weapons manufacturer Castelion and a former Goldman Sachs aerospace investment banker, has described the shift publicly: investors who once had “distaste” or “moral qualms” about defense investing have reoriented their positions as geopolitical competition has intensified.
Why Hardware Defines the LA Cluster
Los Angeles defense startups skew heavily toward hardware and manufacturing rather than the software-first approach that characterizes much of the Bay Area’s defense tech ecosystem. Building autonomous aircraft, hypersonic missiles, satellite systems, and rocket components requires manufacturing lines, supply chains, testing ranges, and engineering talent with hands-on fabrication experience. The South Bay offers all of these within a compact geographic footprint.
The hardware orientation demands significantly more upfront capital. Prototyping a missile system costs orders of magnitude more than writing software, and development timelines stretch years before revenue materializes. But the tradeoff creates steeper barriers to entry. A flight-tested weapons system or a satellite bus that has operated in orbit cannot be replicated as quickly as a software application can be forked. That dynamic appeals to investors willing to accept longer timelines in exchange for durable competitive advantages.
FlightWave Aerospace Systems illustrates the growth pattern. The drone manufacturer signed a roughly 15,000-square-foot lease at an industrial property in Carson in March 2025. By October, just seven months later, FlightWave relocated to a Torrance facility more than triple the size, outgrowing its original space in a fraction of its three-year lease term. That kind of physical expansion, driven by defense contracts and rapid manufacturing scale-up, is typical of the hardware-heavy companies clustering in the South Bay.
The Legacy Contractor Relationship
Southern California’s defense tech revival builds on a foundation laid by legacy contractors who dominated the region for most of the 20th century. Northrop Corporation, Hughes Aircraft Company, the Aerospace Corporation, and McDonnell Douglas were either founded, headquartered, or maintained major operations in the South Bay for decades. The post-Cold War drawdown gutted much of that industrial base. In June 1990, Los Angeles County alone employed approximately 132,000 workers in aerospace products and parts manufacturing. The sector contracted sharply through the 1990s and 2000s as consolidation and base closures reshaped the industry.
The current startup wave occupies a different position in the defense ecosystem than the legacy primes. Rather than competing for the same multi-billion-dollar, multi-decade platform contracts that sustain Lockheed Martin, Northrop Grumman, and Raytheon, startups are targeting the gaps those contractors have been slow to fill: low-cost autonomous drones, rapidly producible missiles, AI-driven factory automation, and manufacturing components at commercial speed rather than defense-procurement timelines. Some legacy firms have responded by launching corporate venture arms that co-invest alongside independent funds, creating partnerships where contractors gain access to startup innovation and startups gain credibility with Pentagon procurement officers.
Risks and Sustainability Questions
The defense tech boom carries risks that mirror the dynamics of earlier venture-fueled cycles. PitchBook analyst Jim Corridore has noted that while the mix of software, hardware, and manufacturing makes the sector attractive to venture capital, not every startup currently raising money will secure the defense contracts needed to sustain operations. The sector depends on sustained Pentagon procurement budgets, and any shift in military spending priorities could leave hardware-intensive companies with expensive manufacturing infrastructure and insufficient revenue.
Industrial real estate constraints present another pressure point. With El Segundo industrial vacancy below 2% and asking rents climbing, startups face escalating facility costs at a stage when many are still pre-revenue. The competition for high-bay manufacturing space, secure facilities for classified work, and proximity to testing ranges will intensify as more companies enter the market. Some firms have already begun looking at Torrance, Carson, and Santa Clarita Valley for expansion space, extending the cluster’s geographic footprint beyond the South Bay core.
The broader question is whether Los Angeles can sustain the conditions that created the cluster: affordable (relative to San Francisco) industrial real estate, access to testing infrastructure, engineering talent with hardware experience, and a venture capital community willing to commit patient capital to defense timelines. Each of those advantages faces pressure as the cluster scales. For now, the combination of $4 billion in annual venture investment, DARPA’s largest county-level funding allocation, and a startup ecosystem producing unicorns at a pace unseen in the region since the 2021 tech boom positions Los Angeles as a serious counterweight to the Bay Area’s long-standing lead in defense innovation.
FAQs
How much venture capital went into LA defense tech in 2025?
Venture capital funding in Los Angeles-area defense technology surpassed $4 billion in 2025, more than double the amount raised in 2024. In 2025, 38% of all venture capital invested in Los Angeles went to military and aerospace companies, more than any other industry in the region.
Which Los Angeles neighborhoods have the highest concentration of defense startups?
El Segundo, Hawthorne, Long Beach, Torrance, and Culver City host the highest concentration of defense tech startups. El Segundo in particular serves as the cluster’s center, with industrial vacancy below 2% and the U.S. Space Force’s Space Systems Command headquartered there.
How many aerospace and defense jobs has Los Angeles County added recently?
The aerospace and defense sector added 11,000 jobs to Los Angeles County between 2022 and 2024, bringing total sector employment to 58,700. The average wage for these positions is $141,110, more than twice the county average.
How much DARPA funding does Los Angeles County receive?
Los Angeles County received $315 million in direct DARPA funding in fiscal year 2024, more than any other U.S. county, representing 16% of all DARPA funding nationwide. Only Fairfax County, Virginia, came close at $261 million.
