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Best Defense Companies to Work for (761)

BAE Systems, Inc.
Aerospace • Hardware • Information Technology • Security • Software • Cybersecurity • Defense
Where purpose connects.

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...

BAE Systems, Inc.

BAE Systems, Inc.'s Top Workplace Perception Strengths

Mission & Purpose: Work is widely described as meaningful and tied to national security, space, and critical defense programs, giving employees tangible real‑world impact. The broad U.S. portfolio across land, sea, air, electronics, and space reinforces a strong sense of purpose.

Work-Life Balance: Role‑dependent hybrid options and alternative schedules such as a 9/80 enable flexibility that supports balance. Experiences vary by program, but PTO and schedule flexibility are highlighted as strengths in many areas.

Benefits & Perks: Offerings include a 401(k) savings plan, paid parental leave, comprehensive healthcare, EAP resources, and tuition reimbursement. Family support such as adoption, fertility, and childcare assistance is emphasized as part of a comprehensive package.

Vantor
Aerospace • Artificial Intelligence • Computer Vision • Software • Analytics • Defense • Big Data Analytics
Vantor is forging the new frontier of spatial intelligence to unlock a more autonomous, interoperable world.

Vantor is forging the new frontier of spatial intelligence to unlock a more autonomous, interoperable world. We empower decision makers and operators with the clarity they need to navigate what’s happening now and shape what’s coming next. Our AI-powered spatial intelligence platform fuses data from the world’s highest-resolution satellites with real-time sensor feeds from space, air, and ground to create...

Vantor

Vantor's Top Workplace Perception Strengths

Mission & Purpose: Work is portrayed as consequential across defense, intelligence, and commercial domains via a platform‑first spatial‑intelligence mission. Many technologists find meaning in building capabilities that support time‑sensitive, real‑world decisions.

Innovation & Products: Rapid product cycles, an AI‑centric platform, and notable collaborations signal a strong focus on cutting‑edge solutions. The pivot from imagery provider to end‑to‑end software/platform expands opportunities to build modern geospatial and AI systems.

Benefits & Perks: Published benefits include 401(k) match, broad health coverage, generous time off, and programs like ERGs, internal mobility, and leadership training. These elements indicate a reasonably mature total‑rewards program.

Boeing
Aerospace • Information Technology • Software • Cybersecurity • Design • Defense • Manufacturing
Explore New Horizons

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...

Boeing

Boeing's Top Workplace Perception Strengths

Mission & Purpose: Teams build commercial jets, space vehicles, and defense systems with real‑world impact, fostering pride and a strong sense of purpose. Camaraderie and collaboration on long‑lived programs further reinforce mission focus.

Benefits & Perks: Total rewards include market‑competitive pay structures, first‑day 401(k) eligibility, tuition assistance, and early‑start health coverage. Union contracts and recognition programs add clarity and incentives for many roles.

Learning & Development: Expanded workforce training, safety culture onboarding, and tuition programs enable upskilling and mobility across functions and sites. Structured rotations and mentoring provide exposure to different parts of the business and senior leaders.

Vannevar
Artificial Intelligence • Machine Learning • Software • Defense
6 Offices
225 Employees
29 Benefits Hiring Now
Vannevar builds AI systems to solve America's hardest 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...

Vannevar

Vannevar's Top Workplace Perception Strengths

Mission & Purpose: Work directly supports U.S. national‑security missions with multiple operational deployments and a focus on “decision superiority” and agentic AI. Employees often describe fulfillment from building solutions that deliver real‑world mission impact for service members and analysts.

Benefits & Perks: Published benefits include comprehensive health coverage, paid parental leave, unlimited PTO, 401(k) matching, wellness and office stipends, and coworking access. Flexibility through remote‑friendly roles and home‑office support is emphasized alongside family planning and caregiving benefits.

Market Position & Stability: Recent production contracting with DIU and publicly claimed deployments across services indicate traction beyond prototypes. External recognition and growth narratives suggest forward momentum while scaling with government customers.

Striveworks
Artificial Intelligence • Big Data • Computer Vision • Information Technology • Machine Learning • Analytics • Defense
2 Offices
83 Employees
24 Benefits Hiring Now
The Command Center for Enterprise AI

“In 36 months, agentic AI systems will be an operating reality across major institutions. We intend to be central to it.” — Dr. Jim Rebesco, Cofounder and CEO, Striveworks The next era of American leadership will be defined by whether our AI systems can work when and where it matters most. Since 2018, Striveworks has delivered the most trusted AI...

Striveworks

Striveworks's Top Workplace Perception Strengths

Mission & Purpose: Work centers on deploying operational AI for U.S. defense across cloud‑to‑edge contexts, tied to Army command‑and‑control efforts and Navy demonstrations. Public signals of multi‑year government awards and mission proximity suggest meaningful, real‑world impact.

Autonomy: Leadership is described as high‑trust with minimal micromanagement, giving ownership from day one and allowing individuals to drive outcomes. Small, cross‑functional teams, pair programming, and open‑door norms enable independent execution with accessible support.

Career Growth: Promote‑from‑within practices and early responsibility create clear avenues to advance and broaden scope. Breadth across ML, data, DevOps, and edge deployment offers progression through varied, high‑impact work.

HRL Laboratories
Artificial Intelligence • Hardware • Software • Nanotechnology • Semiconductor • Quantum Computing • Defense
4 Offices
850 Employees
69 Benefits Hiring Now
Our technologies operate in space, on aircraft, in automobiles, and in a variety of consumer products.

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.

HRL Laboratories

HRL Laboratories's Top Workplace Perception Strengths

Mission & Purpose: Work centers on mission-driven, applied R&D across microelectronics, sensors, materials, photonics, and systems with clear pathways from research to delivery for aerospace, automotive, and defense. Feedback suggests engineers and scientists see tangible real‑world impact through transitions to Boeing and GM programs.

Work-Life Balance: Day‑to‑day workload is often described as manageable with flexible scheduling options (including 9/80 in some groups) and generous time off enabling a healthy balance. Feedback suggests people can take PTO without stigma and keep stress at a sustainable level.

Benefits & Perks: Benefits include strong health coverage, competitive retirement contributions/match, fully paid parental leave, and on‑site amenities such as fitness resources. The Malibu campus setting and employer‑funded health reimbursement contributions are cited as distinctive perks.

Sierra Space
Aerospace • Hardware • Information Technology • Robotics • Defense • Utilities
4 Offices
1,600 Employees
30 Benefits Hiring Now
Defending Today. Defining Tomorrow.

Securing The Freedom of Operations Headquartered in Colorado, Sierra Space is a mission-proven Defense Tech company delivering satellite platforms, critical subsystems, reusable spaceplanes, hypersonic technologies, propulsion systems, and infrastructure for the nation’s most critical missions. With more than three decades of heritage and a record of flight-proven success in space, Sierra Space is trusted by U.S. National Security, Civil customers, and global...

Sierra Space

Sierra Space's Top Workplace Perception Strengths

Mission & Purpose: Hands-on work with Dream Chaser and its Shooting Star module at NASA’s Kennedy Space Center, along with a clear near‑term free‑flyer objective for late 2026, is described as uniquely motivating and rallying.

Innovation & Products: Building a reusable spaceplane and inflatable habitat technology that have cleared major test milestones provides rare, high‑impact exposure to real flight systems and operations.

Team Support: Colleagues and immediate teams are often characterized as supportive and collaborative, frequently called the “glue that holds things together.”

Trail of Bits
Artificial Intelligence • Blockchain • Professional Services • Security • Consulting • Cybersecurity • Defense
Fully Remote
125 Employees
42 Benefits Hiring Now
High-end cybersecurity consultancy with a real-world attacker mentality.

Deepening the Science of Security Founded in 2012 by 3 expert hackers with no investment capital, Trail of Bits is the premier place for security experts to boldly advance security and address technology’s newest and most challenging risks. It has helped secure some of the world's most targeted organizations and devices. Our combination of novel research with practical solutions reduces the...

Trail of Bits

Trail of Bits's Top Workplace Perception Strengths

Innovation & Products: Public materials indicate frequent research publications and open‑source tooling across AI assistants, blockchain, and cryptography, signaling cutting‑edge, technically challenging work. The move to being “AI‑native” with internal tools and policies suggests continued investment in modern engineering practices.

Autonomy: Descriptions of remote‑first, async‑friendly norms (e.g., not requiring Slack on personal phones) point to strong individual ownership and flexible boundaries across time zones. Autonomy appears paired with explicit guardrails through internal security and AI‑usage policies.

Learning & Development: References to publishing, conference talks, open‑source contributions, reading groups, and L&D stipends indicate robust growth pathways alongside client delivery. Clear writing and public knowledge sharing are portrayed as valued skills.

MORSE Corp
Aerospace • Artificial Intelligence • Computer Vision • Machine Learning • Natural Language Processing • Software • Defense
3 Offices
195 Employees
50 Benefits Hiring Now
Welcome to MORSE!

MORSE is a specially selected team of scientists, engineers, and software developers who use asymmetric and unconventional approaches to deploy practical solutions that solve difficult multi-disciplinary problems faced by the US National Security Ecosystem.

MORSE Corp

MORSE Corp's Top Workplace Perception Strengths

Mission & Purpose: Work centers on applied autonomy, AI/ML, and mission-systems for U.S. national security, emphasizing user-centered development with frequent field testing and rapid prototyping. This hands-on focus aims to deliver tangible, impact-driven outcomes for end users.

Team Support: Colleagues are described as smart, friendly, and easy to work with, and the atmosphere is relaxed, accessible, and collaborative. Managers are noted as supportive of career advancement and open to project ideas.

Learning & Development: Professional growth is supported through training, conferences, continuing education, and structured growth tracks with promote-from-within pathways. A matrix structure with group leaders provides guidance, goal setting, and advocacy for development opportunities.

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Outpost Space
Aerospace • Defense
United States
24 Employees
27 Benefits Hiring Now
Building the return lane from space.

We’re developing reusable vehicles that bring payloads home from orbit safely and precisely, enabling faster in-space manufacturing, global delivery, and entirely new capabilities in the space economy.

Outpost Space

Outpost Space's Top Workplace Perception Strengths

Mission & Purpose: The work centers on a clear mission to build reusable Earth‑return vehicles and “through‑space shipping,” enabling tangible projects tied to NASA/DoD‑linked missions. Feedback suggests this resonates with people who want visible impact on real missions and customers.

Benefits & Perks: Compensation is considered competitive with equity, bonuses, and comprehensive health coverage, plus 401(k) match, PTO, and relocation assistance. On‑site amenities like a daily lunch stipend, stocked snacks, a pet‑friendly office, and a meditation space support a people‑first, in‑person culture.

Autonomy: Roles emphasize significant ownership from day one across design, testing, iteration, and flight, with equity for all new hires and promote‑from‑within signals. The small‑team, in‑person setup encourages rapid decision‑making and broad scope across disciplines.

Red 6
Aerospace • Hardware • Software • Virtual Reality • Defense
3 Offices
186 Employees
35 Benefits Hiring Now
A revolutionary technology firm at the forefront of Augmented Reality and synthetic Air Combat Training.

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

Red 6

Red 6's Top Workplace Perception Strengths

Mission & Purpose: The work focuses on training‑readiness for warfighters through ATARS and related systems, which is positioned as meaningful and purpose‑driven. Veteran‑founded roots and a mission emphasis feature prominently in company messaging.

Innovation & Products: Teams build outdoor, airborne AR that flies on real aircraft (e.g., ATARS, EVE headset, Unreal‑based software) with rapid lab‑to‑flight feedback. Partnerships and integrations on real platforms underscore tangible, high‑impact engineering.

Benefits & Perks: Materials highlight company‑paid medical/vision for employees, parental/family leave, relocation assistance, education stipends, and on‑site perks like meals/snacks and parking. Wellness programs, onsite gyms, and continuing education support are noted for some locations.

Caliola Engineering
Aerospace • Hardware • Machine Learning • Software • App development • Defense • Data Privacy
Colorado Springs
68 Employees
26 Benefits Hiring Now
Providing Trusted Solutions for Mission-Critical Communications.

Caliola Engineering, LLC’s staff of systems, security, and software engineers team with PhD researchers to identify and solve mission-critical problems for customers across the US Government. We have subject matter expertise in wireless communications, cryptography, protected MILSATCOM, software defined radio, and unmanned airborne systems. Our team has experience developing and transitioning innovative technologies to Programs of Record. We are a 100%...

Caliola Engineering

Caliola Engineering's Top Workplace Perception Strengths

Mission & Purpose: Work is described as secure, resilient communications for defense customers with mission-critical outcomes, fostering pride and responsibility tied to national security. The company’s stated values emphasize Insight, Innovation, and Integrity & Accountability around a clear purpose.

Team Support: Colleagues are portrayed as collaborative with hands-on mentorship, cross-functional brainstorming, and early-career guidance that connects theory to real-world systems. Stories highlight approachable teamwork that values all input to solve complex problems.

Benefits & Perks: Pay transparency and a comprehensive package are publicly listed, including health/dental/vision, 401(k) match, generous PTO, hybrid work options, a remote program, and lunch-and-learns. Additional perks such as snacks, parking, and FSA are also highlighted.

True Anomaly
Aerospace • Artificial Intelligence • Hardware • Machine Learning • Software • Defense • Manufacturing
4 Offices
300 Employees
21 Benefits Hiring Now
Delivering decisive capabilities for space superiority.

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...

True Anomaly

True Anomaly's Top Workplace Perception Strengths

Mission & Purpose: The mission to secure a stable and sustainable space environment for the U.S. and allies is explicit and tied to deterrence, training ranges, and on‑orbit demonstrations. Feedback suggests candidates motivated by national security and meaningful space problems find a clear purpose here.

Innovation & Products: Successive “Mission X” demos and tight integration across flight, GNC, AI/ML, and operations indicate rapid build–fly–learn cycles and novel RPO/training‑range autonomy. Colleagues are often seen tackling unusual spacecraft‑plus‑C2 challenges that broaden technical scope for engineers at multiple levels.

Market Position & Stability: Recent large funding rounds, a growing multi‑site footprint (including a Long Beach factory), and Space Force program participation signal momentum and runway to resource major programs. Feedback suggests this resourcing supports headcount growth and ambitious deliveries.

Onebrief
Software • Defense
Fully Remote
350 Employees
23 Benefits Hiring Now
Building the future of the military staff.

Before Onebrief, military planning and collaboration was slow, inefficient, and resource-intensive. Building slides with no version control as partners collaborated would have staffs spend weeks or months on a single product or document. With Onebrief, these workflows are now simple and collaboration between large commands is efficient. Staff optimization is the key to building a more resilient, more effective military. Today...

Onebrief

Onebrief's Top Workplace Perception Strengths

Mission & Purpose: Work is described as directly supporting national security through software used by U.S. and allied militaries on operational networks, with outputs shipping into real operations. The mission is framed around improving military planning and decision-making rather than building demos.

Autonomy: Employees are given a high degree of ownership to lead projects and shape the platform’s future within a high‑trust builder culture. The environment values direct communication and expects individuals to move work forward without waiting for permission.

Market Position & Stability: A significant capital raise and a strategic acquisition indicate momentum, runway, and an expanding product surface area. Active presence in defense/tech venues and leadership engagement suggest growing influence in the ecosystem.

Ursa Major
Aerospace • Defense
3 Offices
330 Employees
51 Benefits Hiring Now
Powering the future of defense and aerospace. Fly More. Fly Faster.

Ursa Major was founded to address a critical shortfall in the U.S. industrial base and bring a new model to aerospace and defense systems: we design and manufacture the world’s leading propulsion systems for space, hypersonic applications, and missile systems. Our products and technologies require an extraordinary team – a team that will mold tomorrow’s technologies while deploying today’s best....

Ursa Major

Ursa Major's Top Workplace Perception Strengths

Mission & Purpose: Work centers on national‑security propulsion and hypersonics with frequent build‑test loops and recent flight demonstrations, giving day‑to‑day tasks clear impact and tangibility. Company materials describe an additive‑first, integrated test environment that keeps engineers close to build/flight cycles.

Team Support: Colleagues are described as collaborative, caring, and willing to help, with a tight‑knit, “group of friends restoring a classic car” spirit and cross‑functional problem solving. Regular in‑person all‑hands, open‑door norms, and social events support accessible communication.

Career Growth: Roles offer significant responsibility early, mentorship, and cross‑training across design, testing, and manufacturing, enabling rapid skill growth. Development programs, promotion from within, and recognition awards are highlighted as part of the employee experience.

STR
Machine Learning • Security • Software • Analytics • Defense
5 Offices
800 Employees
56 Benefits Hiring Now
STR Harnesses the power of technology to solve the nation's hardest problems.

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

STR

STR's Top Workplace Perception Strengths

Mission & Purpose: Work is framed around making the world safer through applied R&D that transitions to real users across AI/ML, cyber, and sensing. Many projects emphasize real‑world impact and hands‑on delivery from prototypes to fielded systems.

Team Support: Colleagues and mentors are accessible and supportive, with ERGs, interest groups, and a mentorship‑forward culture that helps interns, new grads, and cross‑disciplinary engineers. Collaboration across offices and cross‑pollination between technical tracks are emphasized.

Learning & Development: Opportunities include moving between projects and domains, tuition reimbursement, seminars, and structured internship programs with final presentations. The environment encourages growth through early responsibility, guidance from senior technologists, and choose‑your‑own‑adventure career paths.

Air Space Intelligence
Aerospace • Artificial Intelligence • Logistics • Machine Learning • Software • Transportation • Defense
3 Offices
150 Employees
39 Benefits Hiring Now
When predictability matters, real-time is already the past.

ASI is a dual-use software company that deploys predictive AI to the world's most complex operating environments. Backed by leading investors–including Andreessen Horowitz, Renegade Partners, and Spark Capital–we actively manage over 40% of all US air traffic across both public and private sector air operations. Partnering with major airlines like United and Alaska, we optimize thousands of flights daily, delivering...

Air Space Intelligence

Air Space Intelligence's Top Workplace Perception Strengths

Autonomy: Employees are entrusted with significant ownership from day one, empowered to take initiative and own problems end‑to‑end rather than narrowly writing code. Feedback suggests resources and colleagues are available when asked, reinforcing independent problem‑solving.

Career Growth: Growth happens rapidly in a culture that values merit over tenure and celebrates proactive impact. Tight feedback loops with major operators and shipping in days create frequent opportunities to stretch and advance.

Benefits & Perks: Compensation is positioned as competitive and transparent with salary plus equity, alongside premium healthcare for employees and dependents. Flexible time off and hours, ergonomic setups, and daily team lunch provide practical support.

Compass Government Solutions, LLC
Professional Services • Consulting • Defense
United States
23 Employees
Hiring Now

Compass Government Solutions is a government contracting company that specializes in supporting federal healthcare-related contracts by procuring top talent for government agencies. With over 30 years of executive experience, they deliver comprehensive health and wellness services, research, human performance optimization, and program management to federal agencies across the U.S. and abroad, aiming to enhance government operations and capabilities.

Compass Government Solutions, LLC
Kay & Associates, Inc.
Aerospace • Logistics • Professional Services • Defense
United States
Hiring Now

Kay & Associates, Inc. is an engineering, technical, and professional services company that has been supporting government and commercial clients for over 50 years. They specialize in providing high-quality staffing solutions, aviation and logistics support, and a wide range of technical services both in the U.S. and internationally, focusing on aircraft maintenance, overhaul, and repair for various platforms.

Kay & Associates, Inc.
Knowles Corporation
Aerospace • Hardware • Defense • Industrial
2 Offices
7,000 Employees
Hiring Now

Knowles Corporation is a global leader and provider of advanced audio and precision device solutions. The company specializes in high-performance capacitors, RF and microwave filters, and micro-acoustic components, such as microphones and balanced armature speakers. It serves a wide range of demanding end markets, including consumer electronics, hearing health, medical technology, defense, aerospace, and industrial electrification.

Knowles Corporation

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