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Top Defense Companies in London (33)

Boeing
Aerospace • Information Technology • Software • Cybersecurity • Design • Defense • Manufacturing
33 Offices
170,000 Employees
110 Benefits Hiring Now
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...

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Boeing

Boeing's Top Stability & Growth Strengths

Strong Revenue Growth: Revenue is rising year over year, with H1 2026 up 11% and Q1/Q2 growing 14% and 8% respectively, supported by higher commercial-aircraft deliveries. This momentum reflects increased production throughput and broader top-line recovery.

Healthy Cash Flow: Cash generation is improving, as H1 2026 operating cash flow turned positive and free cash flow improved, including a positive result in Q2. This shift indicates better working-capital dynamics alongside rising delivery volume.

Strong Market Position & Advantage: Backlog is at a record level of roughly $715 billion, including more than 6,200 commercial aircraft. This depth of contracted demand provides multi‑year visibility for production and revenue.

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...

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Vantor

Vantor's Top Stability & Growth Strengths

Market Expansion: International presence is expanding with a new U.K. headquarters and local leadership in multiple new markets, alongside three multi-year contracts totaling about $204.7M across the Middle East and Africa and more than a dozen new European customers in 2025. Company materials also describe broadened relationships across U.S. government, international government, and commercial customers.

Product Line Growth: The business is moving beyond satellite imagery into an end-to-end, software-driven spatial-intelligence platform with offerings such as Tensorglobe, Cortex, Forge, Nexus, and new releases like WorldView 3D. Constellation plans (Vantage and Pulse) further extend scope toward higher-resolution and high-revisit capabilities.

Strategic Partnerships: Partnerships with BAE Systems, EnduroSat, and CACI underpin next-generation satellites, while collaborations with Esri, Google, Rheinmetall, and Anduril expand distribution and solution integration. These alliances indicate deeper ecosystem reach across defense and commercial geospatial workflows.

Mirion Technologies
Hardware • Healthtech • Defense • Manufacturing
20 Offices
3,281 Employees
Hiring Now

Mirion is a global provider of radiation safety and science technologies, partnering with customers across science, industry, and medicine. The company develops detection, measurement, analysis, and monitoring solutions for nuclear, defense, medical, and research end markets. Its medical group supports healthcare from diagnosis through treatment, while its mission is to harness ionizing radiation knowledge to protect people and advance critical...

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Mirion Technologies
FDH
Aerospace • Defense
18 Offices
1,500 Employees
23 Benefits

FDH Aero is a trusted global supply chain solutions partner and aircraft parts distributor for the aerospace and defense industries, specializing in simplifying supply chains and providing strategic inventory investments.

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FDH
Ultra Maritime
Hardware • Security • Defense • Industrial
12 Offices
1,319 Employees

Ultra Maritime is a defense technology company that provides application-engineered, bespoke solutions for naval and other mission-critical systems. Its capabilities include sonar, radar, and intelligent systems supporting global military programs. The company focuses on protecting what matters and powering naval technology, serving defense, security, critical detection, and control markets with hardware and integrated technologies designed for long-term military programs around...

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Ultra Maritime

Ultra Maritime's Top Stability & Growth Strengths

Strong Market Position & Advantage: Leadership in undersea and anti-submarine warfare is indicated by being described as a worldwide leader and “Global #1 Future ASW Powerhouse,” supported by major contracts with the U.S. Navy, UK MoD, and Royal Australian Navy. Acquisition interest from Lockheed Martin further underscores perceived competitive strength.

Strong Revenue Growth: Reported revenue increased from $494 million in 2023 to a projected $784 million under Advent International, pointing to meaningful top-line momentum. Full production readiness of multiple modern sonobuoy variants and surging ASW demand align with continued growth signals.

Investor Backing & Capital Strength: Ownership by Advent International and significant investment in capacity and product development signal strong financial sponsorship. A $3.45 billion acquisition agreement by Lockheed Martin, at a high EBITDA multiple, reflects robust external validation of capital strength.

Marshall Group
Aerospace • Professional Services • Defense • Manufacturing
10 Offices
601 Employees

Established in 1909, Marshall Group is a British aerospace and defence company with a rich engineering heritage. It is a global leader in military maintenance, repair, and overhaul (MRO), working closely with aircraft operators to keep their fleets mission-ready. The company also specializes in precision manufacturing for flagship defence programmes and provides applied engineering services and technology solutions for governments...

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Marshall Group
Intelsat S.A.
Aerospace • Information Technology • Defense • Infrastructure as a Service (IaaS)
6 Offices
1,790 Employees

Intelsat is a global satellite services provider that operates a large fleet of satellites and ground infrastructure. It provides connectivity solutions for video broadcasting, broadband, and secure communications to governments, businesses, and mobile operators worldwide. Recently acquired by SES, it continues to function as a major player in the satellite and connectivity industry, focusing on multi-orbit, multi-band network solutions to...

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Intelsat S.A.
Lodestar Space
Aerospace • Defense • Manufacturing
2 Offices
16 Employees
Defending the ultimate high ground.

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

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Lodestar Space
Britten-Norman
Aerospace • Transportation • Defense • Manufacturing
5 Offices
127 Employees
11 Benefits

Britten-Norman is a leading British aircraft manufacturer and aviation services provider, designing and building aircraft for over 70 years. They offer new, pre-owned, and special mission aircraft, along with services like field support, training, and MRO.

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Britten-Norman
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GLOCK, Inc.
Defense • Manufacturing
5 Offices
480 Employees

GLOCK, Inc. is a global manufacturer of polymer-framed pistols and firearms. It designs and produces pistols in a range of caliber configurations and styles, emphasizing precision, safety, and reliability. The company’s products are engineered to meet demanding specifications associated with military and law-enforcement use, while its sporting-goods manufacturing classification reflects its role as a producer of firearms and related sporting...

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GLOCK, Inc.
MBDA
Aerospace • Defense
11 Offices
13,000 Employees
10 Benefits

A world leader in missiles and missile systems. Our multi-national organisation is made up of around 13,000 employees working across the UK, France, Italy, Germany, Spain and the US, and is the first truly integrated European defence company. As the European champion in our sector, our vision is to continue to grow our presence as a global player. Our mission is...

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MBDA
Roke
Artificial Intelligence • Consulting • Cybersecurity • Defense
4 Offices
916 Employees
Hiring Now

Roke is a defence, security and technology specialist that works across defence, security and industry. It delivers engineering, consultancy, research and advanced technology to protect missions, safeguard critical systems and strengthen future capabilities. Its expertise spans sensors, secure communications, cyber, artificial intelligence and machine learning, with solutions for government, defence, national security, law enforcement and commercial customers in complex, high-risk...

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Roke
Babcock International Group
25 Offices
26,000 Employees

Babcock is an international defence company operating in our focus countries of the UK, Australasia, Canada, France and South Africa, with exports to additional markets. Our Purpose, to create a safe and secure world, together, defines our strategy. We support and enhance our customers’ defence and security capabilities and critical assets through a range of product and service solutions. We meet...

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Babcock International Group
QBE LLC
Information Technology • Professional Services • Consulting • Defense
50 Offices
66 Employees

QBE LLC is a management and technology consulting organization that provides services to the federal government and defense communities, offering IT services, cybersecurity, cloud infrastructure, data management, and system engineering.

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QBE LLC
Senior plc
Aerospace • Automotive • Energy • Defense
2 Offices
6,779 Employees
10 Benefits Hiring Now

Senior plc is a global, market-leading engineering solutions provider that designs and manufactures high-technology components and systems for the aerospace, defense, land vehicle, and power & energy markets.

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Senior plc

Senior plc's Top Stability & Growth Strengths

Profitability: Adjusted profit and operating margins expanded across continuing operations, supported by positive pricing, volume growth, and operational efficiencies. Profits are rising faster than sales, indicating improved earnings quality.

Healthy Cash Flow: Free cash flow increased and leverage reduced, with strong cash conversion underpinning balance sheet strength. Dividend growth and deleveraging signal ample capacity to fund growth and returns.

Strong Market Position & Advantage: The company is described as an international, market‑leading engineering solutions provider and tier supplier to major OEMs across aerospace, defence, land vehicle, and energy markets. A focused footprint in fluid conveyance and thermal management with global operations supports durable competitive positioning.

Galliford Try Holdings plc
Professional Services • Real Estate • Defense • Industrial
2 Offices
4,317 Employees
13 Benefits

Galliford Try Holdings plc is a United Kingdom-based construction company that carries out building and infrastructure projects for clients in the public, private, and regulated sectors. It specializes in delivering construction services that improve the built environment.

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Galliford Try Holdings plc
GP Strategies Corporation
Information Technology • Professional Services • Consulting • Defense
35 Offices
4,500 Employees
19 Benefits

GP Strategies Corporation is a global provider of sales and technical training, e-learning, management consulting, and engineering services. They are a leading talent transformation provider, helping organizations build workforce capabilities and achieve meaningful change through award-winning learning and development solutions.

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GP Strategies Corporation
Metrea
Aerospace • Defense
2 Offices
749 Employees
5 Benefits

Metrea, formerly Meta Aerospace, offers a deep stack of defense capabilities and services for our customers and partners, allowing them to anticipate, secure, and defend their interests in a rapidly changing problem space. We architect cutting-edge solutions across a wide variety of missions from ISR services, to multi-mission electromagnetic technologies, to simulations applications.

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Metrea

Metrea's Top Stability & Growth Strengths

Strong Market Position & Advantage: Acquisition of France’s KC/C‑135 fleet and pioneering boom refueling for U.S. services establish a differentiated, at‑scale presence in contracted aerial refueling. This capability positions the company alongside a very small set of providers with broad receiver compatibility.

Market Expansion: New and extended sovereign engagements—such as India’s refueling training, Australia’s border‑surveillance award, and continuing U.S. Navy orders—illustrate growing international reach. These wins indicate multi‑year demand across several regions.

Product Line Growth: Acquisitions and program activity extend offerings beyond AAR into surveillance, ISR/EW training, advanced simulation, and aerial‑firefighting concepts. FAA ODA certification via Metrea Aerospace Design and the Intellic Technologies addition accelerate engineering and training pipelines.

FDH Aero
Aerospace • Defense
19 Offices
1,023 Employees

FDH Aero is a trusted global supply chain solutions partner for aerospace and defense. We specialize in hardware, electrical, and consumable products and services for our global customers. Designed to deliver what you need, when you need it – FDH’s service-first teams proactively safeguard speed, reliability and availability of stock.

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FDH Aero

FDH Aero's Top Stability & Growth Strengths

Strong Revenue Growth: Revenue grew more than fifteen-fold over multiple years of private equity investment, scaling the company into a billion-dollar global aerospace distribution platform. Extensive acquisition activity across five continents further underscores rapid top-line expansion.

Investor Backing & Capital Strength: A majority-stake agreement with Bain Capital, alongside continued support from Audax and prior institutional sponsorship, signals strong financial capacity. This backing is positioned to fuel the next phase of global expansion and operational investment.

Market Expansion: Operations span 15 countries with over 650,000 square feet of inventory and a workforce exceeding 1,500, including recent facility expansions in Singapore, India, and Montreal. A buy-and-build approach and global partnerships broaden reach across OEM and aftermarket channels.

CRA
Energy • Defense • Industrial • Manufacturing
21 Offices
79 Employees
31 Benefits

Energy and Defence systems, purpose-engineered from first principles. 800+ installations, 25+ countries, 30+ years — designed and built entirely in-house.

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CRA

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