The Global Wiring Harness in Military, Aerospace & Space Market was valued at USD 2.31 Billion in 2023 and is projected to reach USD 4.1 Billion by 2032, growing at a Compound Annual Growth Rate (CAGR) of 6.5% during the forecast period (2024–2032). This robust growth is fueled by escalating defense budgets, the rapid development of next-generation aircraft and spacecraft, and the increasing demand for sophisticated communication and navigation systems that rely on highly reliable electrical interconnections.

As military, aerospace, and space platforms become more complex and data-intensive, the wiring harness—often described as the central nervous system of any vehicle—has evolved into a critical component for performance and safety. In this blog, we profile the Top 10 Companies in the Wiring Harness for Military, Aerospace & Space Industry, highlighting the key players who are engineering the robust, lightweight, and high-performance connectivity solutions that power modern defense and exploration missions.

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🔟 1. Collins Aerospace (RTX Corporation)

Headquarters: Charlotte, North Carolina, USA
Key Offering: Custom-engineered wiring systems for commercial, military, and space applications

Collins Aerospace, a subsidiary of RTX, is a global leader in advanced aerospace and defense solutions. Their Interconnect Solutions division designs and manufactures a comprehensive portfolio of wiring systems that meet the stringent requirements of extreme environments, from the depths of the ocean to the vacuum of space. Their products are integral to major platforms like the F-35 fighter jet and various commercial airliners.

Innovation Initiatives:

• Development of lightweight, high-speed data harnesses for next-gen avionics

• Investment in automated wire processing and harness manufacturing technologies

• Focus on sustainable materials and manufacturing processes

Download FREE Sample Report: Wiring Harness in Military, Aerospace & Space Market – View in Detailed Research Report

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9️⃣ 2. TE Connectivity Ltd.

Headquarters: Schaffhausen, Switzerland
Key Offering: Connectors, sensors, and wire & cable solutions for harsh environments

TE Connectivity is a titan in the connectivity and sensor sphere, supplying critical components to virtually every major aerospace and defense OEM. Their aerospace, defense, and marine division offers a vast array of interconnect products, including advanced wiring harnesses designed for reliability under extreme pressure, temperature, and vibration conditions.

Innovation Initiatives:

• Pioneering fiber optic and high-speed copper wiring solutions

• Expanding capabilities in ruggedized connectors for space applications

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8️⃣ 3. Amphenol Corporation

Headquarters: Wallingford, Connecticut, USA
Key Offering: High-performance interconnect systems for aerospace and defense

Amphenol Aerospace is a premier designer and manufacturer of interconnection systems for the industry. The company is renowned for its rigorous testing standards and ability to produce custom, complex wiring assemblies that meet demanding MIL-SPEC and customer-specific requirements for aircraft, satellites, and military vehicles.

Innovation Initiatives:

• Leading the integration of fiber optics into traditional harness designs

• Development of compact, high-density interconnect solutions for UAVs and small satellites

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7️⃣ 4. Carlisle Interconnect Technologies

Headquarters: Saint Augustine, Florida, USA
Key Offering: Specially engineered wire, cable, and interconnect systems

Carlisle Interconnect Technologies specializes in creating highly engineered solutions for the most challenging environments. Their expertise spans commercial aviation, military aircraft, and space programs, where they provide custom wiring harnesses that prioritize weight reduction, signal integrity, and long-term durability.

Innovation Initiatives:

• Focus on advanced composite and Teflon-based wire constructions

• Expansion of services for comprehensive harness repair and overhaul (MRO)

Download FREE Sample Report: Wiring Harness in Military, Aerospace & Space Market – View in Detailed Research Report

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6️⃣ 5. GKN Aerospace (Melrose Industries)

Headquarters: Redditch, United Kingdom
Key Offering: Aerostructures, engine systems, and electrical wiring interconnection systems (EWIS)

GKN Aerospace is a key tier-1 supplier to the global aviation industry. Their EWIS division designs and manufactures full wiring harness solutions for a wide range of aircraft, including complex bundles for wing-to-fuselage integration and flight control systems. Their involvement in major programs like the Airbus A350 and various military platforms underscores their market significance.

Innovation Initiatives:

• Investing in automated tape laying and harness installation technologies

• Developing integrated systems that reduce aircraft weight and assembly time

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5️⃣ 6. Prysmian Group

Headquarters: Milan, Italy
Key Offering: Energy and telecom cables, including specialty cables for aerospace

As the world’s largest cable manufacturer, Prysmian Group brings its extensive material science expertise to the aerospace sector. The company produces a range of high-performance wires and cables used in the construction of harnesses for aircraft systems, including those requiring fire-resistant and low-smoke-zero-halogen (LSZH) properties.

Innovation Initiatives:

• Research into new polymer compounds for enhanced performance and sustainability

• Supply of critical cable solutions for ground support and radar systems

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4️⃣ 7. Nexans S.A.

Headquarters: Paris, France
Key Offering: Advanced cabling systems for aerospace, defense, and space

Nexans is a global leader in the cable industry with a dedicated ‘Aerospace & Defense’ business unit. They provide a comprehensive portfolio of cables and harnessing solutions that meet the highest standards of safety and reliability for critical applications in commercial aircraft, helicopters, and defense platforms.

Innovation Initiatives:

• Specialization in airframe wiring and electrical interlacing systems

• Commitment to developing halogen-free and environmentally friendly cable solutions

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3️⃣ 8. Sumitomo Electric Industries, Ltd.

Headquarters: Osaka, Japan
Key Offering: Automotive and aerospace wiring harnesses, optical fibers

Sumitomo Electric is a diversified industrial giant with a formidable presence in wiring systems. Leveraging its massive scale from the automotive sector, its aerospace division produces high-quality, reliable harnesses for both Japanese and international aircraft manufacturers, emphasizing precision and miniaturization.

Innovation Initiatives:

• Integration of data bus and power cables into consolidated harness assemblies

• Advanced R&D in superconductivity and fiber optic technologies

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2️⃣ 9. Glenair, Inc.

Headquarters: Glendale, California, USA
Key Offering: High-reliability circular connectors, cable assemblies, and conduit systems

Glenair is a premier manufacturer of high-quality interconnect products designed for harsh environments. While known for its connectors, the company also produces complex, high-performance cable and wire assemblies that are essential for military aircraft, satellites, and ground support systems, often built to exacting QPL (Qualified Products List) standards.

Innovation Initiatives:

• Expertise in ruggedized, lightweight circular composite connectors

• Custom overmolding and shielding solutions for EMI/RFI protection

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1️⃣ 10. Yazaki Corporation

Headquarters: Tokyo, Japan
Key Offering: Wiring harnesses, connectors, and components for automotive and aerospace

Yazaki, a global leader in automotive wiring harnesses, applies its vast manufacturing and supply chain expertise to the aerospace sector. The company supplies electrical distribution systems and components for aircraft, focusing on solutions that enhance fuel efficiency through weight reduction and improved electrical system reliability.

Innovation Initiatives:

• Applying automotive-scale manufacturing efficiencies to aerospace harness production

• Development of advanced power distribution units for more electric aircraft (MEA)

Get Full Report Here: Wiring Harness in Military, Aerospace & Space Market – View in Detailed Research Report

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🌍 Outlook: The Future of Wiring Systems is Smarter, Lighter, and More Integrated

The wiring harness market for military, aerospace, and space applications is undergoing a fundamental transformation. The era of simple wire bundles is giving way to intelligent, integrated systems that are central to vehicle performance and maintenance.

📈 Key Trends Shaping the Market:

• Transition to More Electric Aircraft (MEA) and spacecraft, drastically increasing electrical content and complexity.

• Adoption of fiber optic harnesses for high-speed data transmission, replacing heavier copper wires.

• Integration of health monitoring sensors directly into harnesses for predictive maintenance.

• Use of additive manufacturing and automation for rapid prototyping and production of complex harness geometries.

Get Full Report Here: Wiring Harness in Military, Aerospace & Space Market – View in Detailed Research Report

The companies listed above are not just manufacturing components—they are enabling the technological leaps that define the future of flight and space exploration.