Electrical Wiring Interconnection System (EWIS) Market Size - By Component, Application, Aviation Type, End Use Analysis, Share, Growth Forecast, 2025 - 2034

Electrical Wiring Interconnection System Market Size

The global electrical wiring interconnection system market was valued at USD 8.1 billion in 2024 and is estimated to grow at a CAGR of 4.9% to reach USD 12.9 billion by 2034 with the volume of 166.1 million shipments. The growth of the market is driven by key factors such as rise in shift toward more-electric and all-electric aircraft (MEA/AESA), increasing proliferation of in-flight entertainment (IFE) and connectivity systems, as well as emergence of Urban Air Mobility (UAM) and eVTOL Aircraft.
 

The electrical wiring interconnection system market is significantly impacted by the Trump administration’s tariff on materials such as steel, aluminum, and copper tariffs most explicitly in copper wiring construction. EWIS components which include wiring, cables, and enclosures, are reliant on these metals which raises the cost for manufacturers and end users. The industry is at risk of shrinking due to increased production costs. Along with that, increased tariffs on Chinese imports of electronics and semiconductors are negatively affecting the manufacturing of advanced EWIS components.
 

The rise in shift to More Electric and All-Electric Aircraft (MEA/AESA) is increasing the demand for electrical wiring interconnection system market. The rising incorporation of electric systems into aircraft remains EWIS’s main challenge. The complexity, density, and criticality of the aircraft’s wiring networks are expanding in proportions. EWIS is pivotal in interfacing power and data with the sophisticated subsystems of an aircraft considering systems like electric propulsion, flight control, and environmental systems.
 

According to Statista, during 2021, the electric aircraft sector nearly crossed the USD 50 million, doubling in size from the year before. Also, It is anticipated that this industry would expand rapidly, reaching USD 6.6 billion by 2026. Sub systems also have interdependent requirements which further increases WIS chow as well as systems offered by WIS to these advanced subsystems. These factors increase the need for lighter, more heat-resistant wiring which would further optimize performance and fuel efficiency. OEMs are now focused on designs for new models of advanced EWISs in order to maintain and comply with electric and other regulatory standards of the emerging electric aircraft systems.
 

In addition, the rise in development of Urban Air Mobility (UAM), and the introduction of electric Vertical Take-Off and Landing (eVTOL) aircraft, are shifting the demand for electrical wiring interconnection system market. These aircraft are using more advanced propulsion systems, and modern electrical systems which necessitate complex, miniature, and lightweight avionics wiring with high efficiency. For instance, in April 2025, Sarla unveiled their air taxi prototype. Up to six passengers can travel 20 to 30 kilometers at up to 250 kmph in the eVTOL at the Bharat Mobility Global Expo.
 

Sarla partnered with Bengaluru International Airport in order to introduce its air taxis at Kempegowda International Airport. There is financially support starting with USD 10 million from Accel's Series A fundraising round.  Due to the severe weight, safety, and space limitations of the eVTOL design, EWIS systems must optimize reliability, energy, and integration, while ensuring reliable system performance and seamless cross-functional design.
 

Accordingly, there is an increase in demand for advanced EWIS solutions with growing UAM adoption as an urban transport solution. This has led UAM suppliers to adopt new modular architectures, high density, and thermally resilient wiring technologies. As metropolitan infrastructure systems expand and Urban Air Mobility becomes the preferred urban transport solution. This need is being addressed by aerospace suppliers who need to meet the standards for modular design, higher density circuitry integration, and greater thermal stability, resulting in new materials and process technologies for wiring solutions, which is exhibiting a positive influence on the growth of the market during the estimated period. 
 

Electrical Wiring Interconnection System Market Trends

• The increasing sophistication, precision, and efficiency of automated wire harness manufacture technologies is scaling the Automated EWIS production at a significant rate. The automation of wire harness construction incorporates features of uniformity, multifactorial replication as well as drastic decreases in human error and lead time. These improvements accompany the growing complexity of modern aircraft systems such as the More Electric or All Electric Systems on Airplanes (MEA/AESA). Due to high competition in the aerospace domain, there is greater need for low cost, dependably and tirelessly performing, compact, and advanced EWIS solutions for next generation aircraft.
   
• Additionally, the increased use of modular and prefabricated harness systems is raising the demand for electrical wiring interconnection system market because these tools aid in simplifying solutions for interrelated and complex networks within the aircraft. These systems help with quicker assembly, reduced installation time, and greater modularity which support the aerospace requirements of faster production and lower costs. Moreover, modular and prefabricated designs help sustain uniformity which ensures better quality control as well as easier maintained since the assembly on-site is done at a basic level. The use of advanced EWIS technology is rapidly expanding for modular aircraft manufacturers that require lower weight, high reliability, and more cost-effective electrical networks.
   

Electrical Wiring Interconnection System Market Analysis

Based on the product type, the market is segmented into wire and cables, connectors, electrical grounding and bonding devices, electrical splices, clamps, pressure seals, and others.
 

• Wire and cables segment accounted for USD 2.8 billion in 2024. The increasing need for high-performance wires and cables is positively impacting the growth of electrical wiring interconnection systems (EWIS) because of modern aircraft electrical architectures. New materials and insulation technologies include thermal shielding, signal retention, and weight reduction which are critical in aerospace applications. The increasing integration of electronics and data processing into aircraft systems is driving demand for specialized cables such as high power and fiber optic cables. The aviation industry is undergoing a positive transformation in terms of modularity which enables the construction of cost-efficient, multi-functional, and robust EWIS systems. This advancement in component-level design is countering the modularity, safety, and space limitation challenges emerging in aviation platforms.
   
• Electrical splices accounted as the fastest growing segment that is likely to reach USD 1.5 billion in 2034. The increased need for electrical splices leads to improvements in EWIS for aviation technology as it is critical for enabling maintenance and boosting lower-level connections, as capstan maintenance for complex architectures is always easer if the connections are reliable. The quality of the splices allows for secure, low-resistance connections for the modules which is crucial as modern aircrafts require high integration of systems, safe, and efficient power and signal transmission. The modular design of the harness assembly means that the components can be easily replaced, which helps to reduce downtimes for maintenance and lifecycle costs. The stong focus on aerospace wire redundancy and fault tolerance increases the competition for more advanced splice solutions which drives evolution in EWIS designs and improves modern airframes' electrical systems.

Based on the application, the electrical wiring interconnection system market is divided into avionics, interiors, propulsion system, airframe, and others.
 

• Avionics is expected to account for 27.9% of the global market in 2024. The modernization of aircraft, including their navigation, flight control, communication, and monitoring systems, makes use of intricate electronic systems. This leads to growing avionics applications which, in turn, increase the demand for electrical wiring interconnection system market. More advanced systems require greater precision and integration with other systems, as well as electromagnetic shielding and denser routing of wiring harnesses signaling systems. Moreover, the expansion of reliance and use of digital dashboards combined with real time data systems in military and commercial aviation increases the value of EWIS, due to them having crucial roles in dependable power and data lines to the subsystems.
   
• Propulsion system segment accounted for CAGR of 6.4% in 2025-2034. The adoption of electric and hybrid propulsion systems is increasing the requirement for electrical wiring interconnection systems. Such advanced propulsion systems require power management, thermal management, and safety systems. This entails the use of robust, high-voltage wiring solutions. EWIS is vital for the seamless interconnection among inverters, power supplies, control modules, and electronic control units as propulsion system subsystems integrate further, enabling efficient command and control. Commercial and defense aviation propulsion systems readily adopt new innovations; thus, EWIS is crucial for supporting next-generation aviation technologies due to the growing need for lightweight, heat-resistant, and high-current-capable wiring.
   

Based on the material type, the electrical wiring interconnection system market is divided into commercial aviation, military aviation, and business and general aviation.
 

• The commercial aviation segment dominated the market, accounting for USD 4.2 billion in 2024. The development of the commercial aviation sector is one of the key drivers for expanding the market for EWIS because modern aircraft undergo extensive real time changes to their electrical subsystems which include navigation, communication, entertainment systems as well as fuel efficiency within the aircraft. The growing demand for EWIS in emerging economies is accompanied by the need to simultaneously economize on weight and size. Furthermore, new designs of aircraft incorporates advanced modular fuel cell power systems which add versatility, improve operability and lower cost of maintenance, which are essential for sustaining low operational and environmentally friendly cost structure of the aircraft. The increasing utilization of commercial aviation reinforces the competitive value of EWIS components in the construction and design of an air vehicle throughout its life-span.
   
• The electrical wiring interconnection system market from military aviation segment is expected to register highest growth during the forecast period, growing at a CAGR of 4.8% for 2025 to 2034. The rise of military aviation is amplifying the use of EWIS systems because of advanced avionics, electronic warfare systems, and mission-critical communication systems. Modern defense aircraft require rugged, high reliability wiring systems like EWIS that can endure extreme environmental and electromagnetic conditions. Moreover, the upgrade of legacy fleets and the next generation fighter jet UAV and surveillance platform development is custom engineered EWIS solutions with modularity, redundancy, and rapid integration. With imposition on agility and digital interconnectivity of defense forces, analog integrators becomes critical in the support of EWIS advanced operational capability and interoperability.
   

Based on the end user, the electrical wiring interconnection system market is segmented into OEM and aftermarket.
 

• OEM segment accounted for USD 5.7 billion in 2024. The emerging trends for OEM customers are impacting the growth EWIS integration projects as aircraft OEMs need advanced custom, fully integrated, and scalable wiring systems. With increasing rates of production of commercial, military, and electric aircrafts, OEMs are focusing on modular construction of EWIS that facilitates easy installation, quick assembly, and maintenance. In addition, OEMs are more actively participating in joint marketing projects with their EWIS suppliers to improve system integration, minimize weight, and ensure compliance with laws and standards. This encourages new developments and presents lucrative opportunities for system engineering EWIS on the airframe and subsystem level.
   
• Aftermarket accounted as the fastest growing segment that is likely to reach USD 4.4 billion in 2034. Increased attention to aircraft maintenance, repair, and retrofitting has grown the aftermarket end user business, which is associated with an increase in focus on EWIS systems. As international fleets age and safety and performance parameters become more stringent, airlines along with maintenance operators deep prioritize using outdated wiring systems. There is demand for modular and pre-terminated harnesses due to retrofit programs that need EWIS components that can be easily installed. In addition to this, emerging markets are expanding MRO (Maintenance, Repair and Overhaul) facilities which provide sustained interest in reliable and long enduring EWIS solutions. These systems are indispensable for high-quality in-service life extension of aircraft.

In 2024, the U.S. electrical wiring interconnection system market accounted for USD 1.5 billion. The U.S market is growing due to the expansion of electric and more electric aircraft, increased urban mobility, and higher spending in defense industries. Also, the presence of major aerospace OEMs and defense contractors have advanced EWIS infrastructure for supporting next-generation aircrafts that have higher electrical components facilitate lower weight, and high performance. Moreover, new safety criteria has increased the usage of automated modular high-performance EWIS. Along with the presence of key players in the industry, growing research and development investments leading to the demand of EWIS across US.
 

The Germany electrical wiring interconnection system market is expected to grow at a CAGR of 4.2% during the forecast period. In Germany, the demand for EWIS is increasing owing to the country’s rigid aerospace manufacturing infrastructure which encompasses Airbus activities, as well as the country’s engineering endeavours. The further increase in the deployment of all electric planes and the shift to sustainable aviation is contributing to the market for advanced, lighter, and energy saving solutions for EWISs. Furthermore, development of electric air mobility and modernization of the military is further increasing the investment in advanced wiring systems. The market is further strengthened due to the presence of specialized suppliers and aide from the government towards aerospace research and development, making Germany a central operator for the development and integration of EWISs in Europe.
 

China electrical wiring interconnection system market is expected to grow at a CAGR of 6.8% during the forecast period. The growing commercial aviation industry and domestic projects, like COMAC’s C919, are boosting the need for electric wiring interconnection systems (EWIS) in China. EWIS component sourcing and manufacturing are being accelerated by China’s self-sufficiency strategic initiative towards aerospace building. Investments in electric and hybrid electric aircraft alongside new developments in urban air mobility (UAM) are also increasing the demand for high density compact wiring solutions. The growing supplies from private suppliers, along with government stimulus innovation policies, are also responsive to domestic and international aviation market demands, which further bolster the EWIS supply chain.
 

In 2024, Japan is expected to account for a share of 17.5% of the electrical wiring interconnection system market in Asia Pacific. In Japan, the country’s focus on advanced aerospace technologies and involvement in international aircraft programs is driving the demand for Electrical Wiring Interconnection Systems (EWIS) growth. Japanese manufacturers are increasingly supplying precision components to OEMs worldwide, along with specialized wiring systems as they are utilizing their skills in miniaturization and high-reliability electronics. Moreover, Japan's research investments into electric propulsion and next-generation air mobility platforms are additional areas with EWIS integration potential. The country’s automation and smart manufacturing initiatives also foster the development of sophisticated pre-formed harness systems designed for compact and energy-efficient aircraft.
 

South Korea electrical wiring interconnection system market accounted for USD 687.2 million in 2024. Advanced EWIS with specialized high-performance electrical systems are high on demand because of the growing governmental funding in domestic aircraft initiatives like the KF-21 jet fighter and partnerships with overseas aerospace companies. In addition to South Korea's advanced capabilities in the manufacturing of electronics, South Korea is further capable of designing and developing the precision wiring parts. Also, the strategic attention the country invests in electric mobility as well as smart technologies for aerial vehicles that is driving the development of next generation EWIS solutions for integrated modern civil and military aviation features.
 

Electrical Wiring Interconnection System Market Share

The market is fragmented and comprises different tiers in the value chain. Companies like Safran, TE Connectivity, Amphenol Corporation, Collins Aerospace (Raytheon Technologies), and Honeywell International Inc. have a considerable presence in the market and are holding highest numbers of market shares of nearly 35.8%. The EWIS market encompasses some of the largest companies in the aerospace industry as well as specialized wiring system manufacturers.
 

The electrical wiring interconnection system market is continuously developing with new product innovations and expanding their geographical footprints. For instance, in July 2023, Bombardier completes acquisition of Latécoère's electrical wiring interconnection system company in Querétaro, Mexico to strengthen supply chain. This agreement enables Bombardier to solidify its position as a flagship company of the Mexican aerospace industry and to further solidify its position as an industry leader in Querétaro, Mexico. Bombardier maintains significant EWIS operations and acquires the assets and skills necessary to produce the electrical harnesses needed in its market-leading aircraft as a result of this transaction. The company's recent insourcing efforts to strengthen and improve its supply chain are in line with this objective.
 

Electrical Wiring Interconnection System Market Companies

Leading companies in the electrical wiring interconnection system industry comprise:
 

• Safran
• TE Connectivity
• Amphenol Corporation
• Collins Aerospace (Raytheon Technologies)
• Honeywell International Inc.
   

Safran designs, manufactures, and installs electrical interconnection systems (EWIS) to offer more optimal power and on-board data networks for the commercial and military aerospace markets. Safran produces harnesses for applications in fuselage, wings, pylons and horizontal tails, cabin and galley, and fiber optics. Safran Electrical & Power is one of the top companies in the world for aviation electrical systems. It is a major player in the fields of electric and hybrid propulsion as well as equipment electrification. The company is an expert in designing and delivering modular, creative, and optimal architectures and solutions for the on-board energy system.
 

TE Connectivity (TE) assist in achieving EWIS solutions with extensive product sets developed to satisfy particular requirements of aviation subsystems. TE Connectivity Interconnection System provides dependable and secure communication options for rugged vehicle. This system offers extensive design options and reliable performance in difficult settings because to its wide range of unsealed, vibration-resistant connectors and field-proven AMP MCP, PCON, and MCON contacts. The Unsealed interconnection system is ideal for in-vehicle communication in commercial transportation, agriculture, and construction. The company’s innovative designs and high-strength materials are used in TE wire and cable connector and termination devices to ensure dependability and long-term performance.
 

Electrical Wiring Interconnection System Industry News

• In July 2024, GKN Aerospace and H55 signed a collaboration agreement. H55 is an expert in creating batteries and electric propulsion systems for electric and hybrid aircraft. The design, development, certification, and industrialization of EWIS for electric propulsion systems are the main objectives of the partnership. H55 has created an Electric Propulsion System (EPS) that consists of an Electric Propulsion Unit (EPU) with a motor and motor controller, as well as an Energy Storage System (ESS) with battery packs, battery management systems, and all interfaces. forefront of creating cutting-edge high-voltage, high-power EWIS technologies.
   
• In July 2024, Deutsche Aircraft entered into a strategic alliance with SASMOS HET Technologies Ltd. that aims for advancing the company’s global aerospace engineering. SASMOS HET Technologies will contribute specialized design and development of Electrical Wiring Interconnection System (EWIS) to this innovative partnership, which will improve the state-of-the-art 40-seater regional turboprop, the D328eco, manufactured by Deutsche Aircraft.
   
• In January 2023, Lilium and GKN Aerospace agreed to collaborate on the development of a certified and integrated EWIS system. At Lilium's last assembly line in Oberpfaffenhofen, Germany, GKN Aerospace will construct the EWIS hardware sets from its manufacturing facility in the Netherlands and assist Lilium with on-site installation into the Lilium Jet.
   

This electrical wiring interconnection system market research report includes in-depth coverage of the industry with estimates & forecasts in terms of revenue (USD Million) and (Units) from 2021 to 2034, for the following segments:

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Market, By Component

• Wire and cables
• Connectors and connector accessories
• Electrical grounding and bonding devices
• Electrical splices
• Clamps
• Pressure seals
• Others

Market, By Application

• Avionics
  • Cockpit controls
  • Flight control systems (FCS)
  • Flight management systems (FMS)
  • Others 
• Interiors
  • Inflight entertainment (IFE)
  • Galleys
  • In-seat power
  • Cabin management
• Propulsion system
  • Engine
  • Auxiallry power unit (APU)
  • Other
• Airframe
  • Wings
  • Tail
• Others

Market, By Aviation Type

• Commercial aviation
  • Narrow body aircraft (NBA)
  • Wide body aircraft (WBA)
  • Very large aircraft (VLA)
  • Regional transport aircraft (RTA) 
• Military aviation
  • Fighter jets
  • Transport aircraft
  • Military helicopters
• Business and general aviation
  • Business jets
  • Helicopters
  • Piston aircraft
  • Turboprop aircraft

Market, By End Use

• OEM
• Aftermarket

The above information is provided for the following regions and countries:

• North America
  • U.S.
  • Canada
• Europe
  • UK
  • Germany
  • France
  • Italy
  • Spain
  • Russia
• Asia Pacific
  • China
  • India
  • Japan
  • South Korea
  • ANZ 
• Latin America
  • Brazil
  • Mexico 
• MEA
  • UAE
  • Saudi Arabia
  • South Africa