Top California Defense Companies (78)

A leading global aerospace company and top U.S. exporter, Boeing develops, manufactures and services commercial airplanes, defense products and space systems for customers in more than 150 countries. Our U.S. and global workforce and supplier base drive innovation, economic opportunity, sustainability and community impact. Boeing is committed to fostering a culture based on our core values of safety, quality and...

Improving the future and protecting lives is an ambitious mission, but it’s what we do. As a leading aerospace, defense, and security company, we work together to deliver a full range of products and services for air, land, space, and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. How we work is rooted...

Space was once the quietest place in the universe. Now, it's crowded, contested, and confrontational.  We are True Anomaly: the only defense company focused exclusively on space defense. Founded in 2022 by ex-U.S. Space Force members, True Anomaly designs and builds advanced systems for space superiority: agile and powerful spacecraft platforms, mission software engineered for unmatched command and control, and payloads...

STR makes the world a safer place by developing technology and applying it to solve emerging national security challenges.

Vannevar combines Silicon Valley innovation with former special operators to build AI for real-world national security outcomes. Since our founding in 2019, Vannevar has deployed its technology across 125 missions, safeguarding our service members and improving our country's deterrence. We believe our military service members and intelligence officers deserve access to the best technology American innovation can offer, and we are...

Red 6 is an innovative Augmented Reality (AR) technology startup leading the way in synthetic air combat training. Our primary technology, supporting our ATARS product, enables pilots to simulate the cognitive challenges of flying while accessing realistic, scalable training in dynamic outdoor environments

HRL Laboratories, LLC, Malibu, California, (hrl.com) pioneers the next frontiers of physical and information science. Delivering transformative technologies in automotive, aerospace and defense, HRL advances the critical missions of its customers. As a private company owned jointly by Boeing and GM, HRL is a source of innovations that advance the state of the art in profound and far-reaching ways.

Karman Space & Defense is a leader in the rapid design, development, and production of critical, next-generation system solutions that align with the U.S. Department of War’s core mission priorities and meet our nation’s accelerating demand for access to space. Building on nearly 50 years of success, we deliver Payload & Protection Systems, Aero/Hydrodynamic Interstage Systems, and Propulsion & Launch...

Artemis Consulting is a small, woman-owned business, founded in 2005, and headquartered in San Diego, CA.  We are a business consulting firm dedicated to delivering superior professional support consulting services.  We partner with customers throughout the Department of Defense to deliver critical acquisition, programmatic, and functional support that enables our clients to overcome their most persistent challenges.

Space Made Simple. We are a true end-to-end service provider letting our customers rapidly deploy and operate their payloads on reliable high-performance satellites at an unprecedented simplicity and affordability.

Astrolab designs and develops robotic mobility systems for planetary exploration, deploying surface mobility and infrastructure to enable sustained human and commercial operations on the Moon and Mars.

Zone 5 Technologies is a UAS and defense technology company founded in 2011, specializing in the development and testing of innovative unmanned aircraft systems for demanding government and defense applications.

CACI’s approximately 23,000 talented employees are vigilant in providing the unique expertise and distinctive technology that address our customers’ greatest enterprise and mission challenges. Our culture of good character, innovation, and excellence drives our success and earns us recognition as a Fortune World's Most Admired Company. As a member of the Fortune 1000 Largest Companies, the Russell 1000 Index, and...

Durin was founded under the belief that raw materials should not be a constraint on civilization's progress. We are actively developing the technologies to make this possible, with the ultimate goal of becoming the foundation of the global supply chain. Our modern way of life, from smartphones to skyscrapers, starts as ore in the ground. But mines don't simply appear. In...

ANELLO is redefining navigation with next-generation sensors. Founded by pioneers in silicon photonics and inertial navigation, ANELLO has developed its groundbreaking Silicon Photonics Optical Gyroscope - SiPhOG™. The ANELLO SiPhOG™ offers robust performance for the mass-market with true Optical Gyroscope performance. The company is headquartered in Silicon Valley and funded by leading venture capital firms. We’re excited to welcome new talent...

Founded in 2024, Scout AI is a venture-backed defense technology company building the AI brain for defense robotics. Fury, Scout's Vision-Language-Action foundation model, is engineered to transform uncrewed platforms into intelligent, mission-adaptive agents. Designed for use across ground, air, sea, and space domains, Fury enables warfighter-level reasoning and one-to-many robotic coordination. Headquartered in Silicon Valley with a center of excellence...

Building the frontline service to safeguard all off-earth operations.

Mariana Minerals is a software-first, vertically integrated minerals company focused on supplying critical materials for energy, AI, and defense technologies. It combines digital infrastructure with mineral project development to secure reliable and sustainable supply chains.

ATI Inc. specializes in advanced materials, including Ni/Co-base superalloys and specialty steels, serving industries such as Aerospace and Defense. The company also offers services in environmental remediation, research, facility management, construction, and building design.

Founded in 1959, B&B Manufacturing Co., Inc. is a leading producer of complex machined parts, assemblies, and kits for the aerospace, military, and semiconductor industries, specializing in custom laser cut metal parts with services including bending, welding, powder coating, and machining.