Nexeya
Nexeya was a French engineering and electronics company serving aerospace, defence, space, energy and transport industries.
Last updated August 31, 2026
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Overview
Nexeya was a French engineering and electronics company focused on the design, integration and development of equipment and systems for demanding industrial markets. Its principal fields included aeronautics, naval and land defence, aerospace, energy and rail or other transport applications. The company supplied both engineering services and specialized products, positioning itself between an industrial technology integrator and a manufacturer of mission-specific electronic equipment. The business was created in 1997 under the name Eurilogic. Its first period of development, from 1997 to 2007, was based largely on industrial services and engineering support. From 2007 to 2013, Nexeya expanded through a series of eight acquisitions, including Isis MPP and BTS Industries. These transactions broadened its technical capabilities and gave it access to expertise intended to support major industrial programmes. From 2013 onward, the company continued its international development through acquisitions in Canada and Germany while disposing of two activities regarded as non-core. Nexeya's portfolio covered several specialized domains. In naval defence, it developed combat and navigation-related systems, including Lyncea, formerly known as Sitac. Lyncea is an embedded combat-management system used to construct and monitor a tactical picture, with applications such as maritime surveillance and the detection of piracy, drug trafficking and illegal immigration. In aeronautics, Nexeya designed test systems for aircraft avionics and electrical systems, supporting validation, integration and fault diagnosis, as well as equipment used on aircraft assembly lines. Its WiDD wiring tester was designed to perform automated multipoint testing of cable harnesses and to identify both permanent and intermittent faults. The company also developed hydrogen-based energy-storage and energy-recovery systems intended to address the intermittent nature of renewable power generation. One cited project was a hydrogen energy-storage station designed to supply and help make a tertiary-sector building in the Grand Angoulême area energy self-sufficient. In space, Nexeya developed nanosatellite capabilities and the Hemeria nanosatellite range. The Angels spacecraft, developed with the French space agency CNES, was presented as France's first industrial nanosatellite and was scheduled for launch in 2019. Nexeya also agreed to supply 20 nanosatellites to Kinéis for a European Internet-of-Things constellation and invested in the Rennes-based start-up Unseenlabs alongside public and regional investment bodies for a maritime-surveillance nanosatellite initiative. In July 2017, Nexeya's management acquired a 75 percent majority stake in the company. The business subsequently underwent a major corporate reorganization. In 2019, Nexeya became a subsidiary of the German defence-electronics group Hensoldt. Its space and defence activities were separated into a newly established company named Hemeria, while the remaining Nexeya activities became associated with Hensoldt. The available reference material describes Nexeya as having 825 employees and revenue of €125.5 million for the financial year ending June 2018. Because the sources describe a substantial post-2019 transfer and reorganization of activities, the current standalone status of the Nexeya brand is not clear.
History
Nexeya originated in France in 1997 under the name Eurilogic. The company's initial growth phase, lasting until 2007, was built primarily around the provision of industrial engineering and technical services. Its work was directed toward sectors in which customers required specialist capabilities in electronics, systems integration, testing and industrial deployment rather than standardized consumer products. Between 2007 and 2013, Nexeya pursued an acquisition-led expansion. It completed eight acquisitions, including Isis MPP and BTS Industries. These transactions increased the company's access to technologies and engineering expertise and helped it participate in larger industrial programmes. Nexeya's customers and target sectors included aeronautics, defence, aerospace, energy and transport. The resulting organization combined consulting and engineering capabilities with the development of proprietary or project-specific equipment. From 2013 onward, the group expanded beyond France through acquisitions in Canada and Germany. At the same time, it sold two business activities considered non-core, a process intended to focus resources on its principal technology and industrial markets. By the financial year ending in June 2018, Nexeya was reported to employ 825 people and to have generated turnover of €125.5 million. Its principal establishments were located in Toulouse, Massy in Essonne and La Couronne in Charente. The company operated across several technical areas. Its defence work included combat and navigation systems for naval applications. Lyncea, formerly called Sitac, was an embedded combat-management system used by French Navy surveillance frigates to create and follow a tactical situation. The system supported maritime missions involving threats such as piracy, drug trafficking and illegal immigration. In aeronautics, Nexeya developed equipment for testing avionics and aircraft electrical systems, including validation, integration and fault-detection applications. Its WiDD system automated multipoint testing of aircraft wiring harnesses and was designed to locate permanent and intermittent defects. Nexeya also entered the energy-storage field with hydrogen-based systems intended to store and recover energy and to reduce the effects of renewable generation's intermittency. In space, it developed nanosatellite technologies and the Hemeria range. The Angels satellite was developed with CNES and was scheduled for launch in 2019. Nexeya also planned to supply 20 nanosatellites to Kinéis for an Internet-of-Things constellation. Separately, the company invested in Unseenlabs with the French defence procurement authority DGA, Bpifrance and Breizh Up in support of a nanosatellite-based maritime-surveillance project. A change in ownership occurred in July 2017, when Nexeya management acquired 75 percent of the company's capital. In 2019, the German defence-electronics group Hensoldt acquired Nexeya, making it a subsidiary. During the same period, Nexeya's space and defence activities were transferred into a new company called Hemeria. The reorganization left Hemeria with those activities, while Nexeya's remaining business was brought into the Hensoldt structure. The available sources do not establish whether Nexeya continues as a standalone operating brand, so its present status is recorded as unclear.
- 2019
Nexeya becomes a Hensoldt subsidiary
[1]The German defence-electronics group Hensoldt takes Nexeya into its corporate structure.
- 2019
Hemeria is created for space and defence activities
[1]Nexeya's space and defence operations are retained in a new company named Hemeria.
- 2018
Reported workforce and turnover reach substantial scale
[1]For the financial year ending June 2018, Nexeya is reported to have 825 employees and turnover of €125.5 million.
- 2017
Management becomes majority shareholder
[1]Nexeya management acquires 75 percent of the company's capital.
- 2013
International expansion and portfolio refocusing
[1]The group pursues acquisitions in Canada and Germany and sells two non-core activities.
- 2007
Acquisition-led expansion begins
[1]Nexeya begins a development phase centered on acquisitions and expands its technical base for major industrial programmes.
- 1997
Eurilogic is founded
[1]The company that later became Nexeya is established in France under the name Eurilogic.
Products and positioning
A specialized French engineering and electronics provider combining industrial services, systems integration and mission-specific equipment for aerospace, defence, space, energy and transport programmes.
Naval defence and combat-management system
Lyncea
Lyncea, formerly known as Sitac, is an embedded combat-management system developed for naval surveillance and tactical operations. It enables operators to create, update and monitor a tactical situation, supporting missions that can include maritime security, counter-piracy, anti-trafficking operations and the control of illegal immigration. The system was used on French Navy surveillance frigates.
Aircraft wiring test equipment
WiDD
WiDD is an automated tester for aircraft cable harnesses and wiring systems. It performs multipoint electrical checks and is designed to detect and locate both permanent and intermittent faults. The product reflects Nexeya's focus on avionics and aircraft electrical-system validation, integration, fault diagnosis and production-line support.
Energy storage and recovery
Hydrogen energy-storage station
Nexeya developed hydrogen-based systems for storing and recovering energy generated in environments with intermittent renewable production. One project involved a station designed to supply a tertiary-sector building in Grand Angoulême and help make the building energy self-sufficient.
Nanosatellite · 2019
Angels
Angels was a nanosatellite developed by Nexeya in cooperation with CNES. It was presented as France's first industrial nanosatellite. The project formed part of Nexeya's broader space-systems activity, which was later transferred into Hemeria.
Nanosatellite platform
Hemeria nanosatellite range
Nexeya developed a nanosatellite range associated with the Hemeria name for commercial and institutional space applications. The range included the Angels project and supported Nexeya's planned supply of 20 nanosatellites to Kinéis for an Internet-of-Things constellation. The relevant space activities were separated into Hemeria in 2019.
Brand decisions
2019
Integration into HensoldtM&ABackground
Nexeya had developed a broad portfolio spanning defence, aerospace, energy and transport, while Hensoldt was expanding its position in defence electronics.
Action taken
Nexeya became a subsidiary of Hensoldt.
Aftermath
The transaction was accompanied by a separation of Nexeya's space and defence activities into Hemeria, leaving the post-transaction structure and continued use of the Nexeya brand unclear.
2019
Separation of space and defence activities into HemeriaStrategyBackground
Nexeya's space and defence activities included nanosatellite development, maritime surveillance and related institutional programmes.
Action taken
Those activities were retained in a newly created company named Hemeria.
Aftermath
Hemeria continued the relevant space and defence portfolio, while Nexeya's other activities were associated with Hensoldt.
2017
Management-led majority investmentStrategyBackground
After a period of acquisition-driven expansion and international development, Nexeya's management sought a controlling ownership position.
Action taken
Management acquired 75 percent of Nexeya's capital and became the majority shareholder.
Aftermath
The transaction placed the company under management majority control before its later integration into Hensoldt in 2019.
Recent events
- 2019
Hensoldt acquires Nexeya[1]
M&A
Nexeya became a subsidiary of the German defence-electronics company Hensoldt.
- 2019
Nexeya's space and defence activities move into Hemeria[1]
M&A
Nexeya's space and defence activities were retained in a newly created company named Hemeria, which was described as employing about 200 people and generating €36 million in turnover.
- 2019
Nexeya prepares the Angels nanosatellite[1]
Product launch · Other
Nexeya developed Angels with CNES and presented it as France's first industrial nanosatellite, with launch planned for late 2019.
- 2017
Nexeya management takes a majority stake in the company[1]
M&A
Nexeya management became the majority shareholder, holding 75 percent of the company's capital.
Nexeya develops hydrogen storage for a tertiary-sector building[1]
Product launch · Other
Nexeya designed a hydrogen energy-storage station intended to supply and support the energy self-sufficiency of a building in Grand Angoulême.
Sources1 sources
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