About Exosens

Your trusted partner for innovative imaging and detection solutions for a safer world

Exosens provides innovative imaging and detection solutions to enable technological breakthroughs for a safer world.

Welcome to Exosens, the European leader in high-end electro-optical technologies for defense and industrial applications. With our exceptional features and commitment to innovation, we stand out as a key player in the industry.

Accompanied by HLD since 2021, Exosens, former Photonis group, is a high-tech company with over 85 years of experience in the development, manufacturing and sales of detection and imaging technologies.

Exosens products range includes advanced imaging cameras, electron, ion, neutron and gamma detectors, microwave amplifiers and image intensifier tubes, providing tailored solutions to complex challenges in highly demanding environments. Our detection and imaging solutions cover from UV to LWIR with key features such as high sensitivity and high speed.

Exosens address 4 main markets: lifescience, industrial control, nuclear energy and defense with the same ambition “Become the leader in each segment”

As a mid-sized company (1600 people), we bring a unique wealth of expertise to the table. Our dedicated team of professionals combines technical expertise with cutting-edge research and development capabilities, ensuring that we remain at the forefront of innovation.

At Exosens, we take pride in our strong industrial capabilities and stringent quality control measures. This enables us to deliver high-volume production of the utmost quality, meeting the demands of even the most challenging projects.

Our extensive international sales network serves as a testament to our global reach. We have established a wide customer base, delivering worldwide our high end-products and solutions. Above all, we prioritize agility and customer satisfaction. Our team goes above and beyond to understand and meet the needs of our clients, ensuring their satisfaction.

Experience the excellence of Exosens and discover how our cutting-edge technologies can elevate your projects to new heights.

Exosens group

Leader in detection and imaging

Accompanied by Groupe HLD since 2021, Exosens is a high-tech company, with more than 85 years of experience in the innovation, development, manufacture and sale of technologies in the field of particles and photo detection and imaging. 

Today, it offers its customers detectors and detection solutions: its travelling wave tubes, advanced cameras, neutron & gamma detectors, instrument detectors and light intensifier tubes allow Exosens to respond to complex issues in environments extremely demanding by offering tailor-made solutions to its customers.

Thanks to its sustained and permanent investment, Exosens is internationally recognized as a major innovator in optoelectronics, with production and R&D carried out on 9 sites, in Europe and North America and over 1 600 employees.

85+ years of experience

1600+ Employees worldwide

130+ proven technology patents

50+ countries: 92% overseas revenues

6% of turnovers in R&D

4000m2 clean rooms


With facilities strategically located across the globe, we work closely with our customers to achieve continuous improvement and foster innovation. As the undisputed leader in night vision image intensifier tubes, our products are deployed on a global scale. We also maintain a prominent position in the market for mass spectrometer detectors, and our cutting-edge technology is utilized in numerous space telescopes and high-energy physics experiments conducted in laboratories worldwide.

Our facilities are strategically situated in multiple countries, enabling us to serve our customers efficiently. Our headquarters is headquartered in Merignac, France, and we have production facilities in France, The Netherlands, Belgium, the United States of America, Germany, and Canada. These state-of-the-art facilities function as operational hubs, where our dedicated operators work diligently to manufacture and deliver a diverse range of high-performance products to our esteemed customers.


At our core, we are committed to excellence, constantly pushing the boundaries of innovation. To support our endeavors, we have established specialized departments, including Research & Development (R&D), Engineering, and Program Management. These departments provide comprehensive support for each product, ensuring that we consistently deliver superior solutions that meet and exceed our customers' expectations.

We take immense pride in our global presence, our unwavering dedication to excellence, and our ability to meet the evolving needs of our customers. Discover the power of our high-performance products and experience the difference of working with an industry leader. Join us on our journey to shape the future through innovation.

Worldwide presence

Click on the world map above to locate a company from the Exosens group. Alternatively, click here to contact the specific company you are looking for and obtain more information about their contact details, location, services, and expertise.

Markets we serve

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Innovative and high-quality products that meet the needs of its customers in the fields of defense and surveillance.

Industrial Control

Industrial Control

Enhancing Industrial Research & Control: Test and evaluate without any damage



Imaging and detection solutions bring high image quality or low-level detection to enabling Life Science breakthroughs.



Nuclear instrumentation is essential to ensure safety, accuracy, and compliance in various nuclear-related activities.


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Discover our technologies

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Our products

Exosens is a global manufacturer of optoelectronics components used in the detection and amplification of ions, electrons and photons. We are focused on mission critical components aimed at highly demanding customers. We innovate and engineer quality components for integration into a variety of applications such as night vision optics, digital cameras, mass spectrometry, physics research, space exploration and many others.


All products
Night vision tubes

Image intensifier tubes to amplify low light level images several thousand times, enabling clear vision in night and low light conditions.

Night vision tubes Discover
Advanced imaging solutions

Exosens with its continuous innovation and commitment to offer advanced imaging solutions, proposes a diverse range of imaging technologies covering a large spectrum of light from below 300 nm Ultra Violet (UV) and up to 12,000 nm in the thermal spectral range Long Wave Infrared (LWIR).

Advanced imaging solutions Discover
Detection for Analytical Science

Exosens provides a wide range of innovative detection and imaging solutions globally, including detectors for photons, electrons, ions, neutrons, and X-rays.

Detection for Analytical Science Discover
Nuclear Instrumentation

Neutron and gamma detectors are essential elements for the safety and control of nuclear reactors, fuel reprocessing plants, waste storage facilities, and research facilitiesies.

Nuclear Instrumentation Discover
Microwave amplifiers

The highest quality, hybrid power amplifiers, combining both vacuum electron and solid-state technologies.

Microwave amplifiers Discover
Methane Detection Services

Telops offers a Methane Airborne Detection Service for the Oil and Gas Industry. Whether you are an oil and gas company, a potential service partner or a regulator society we are committed to addressing your inquiries and providing the necessary support.

Methane Detection Services Discover
Night vision tubes Advanced imaging solutions Detection for Analytical Science Nuclear Instrumentation Microwave amplifiers Methane Detection Services

A constant drive towards disruptive technology

Exosens offers a wide variety of digital imaging cameras covering a broad spectrum of light from below 300 nm Ultra Violet up to 12. µm Long Wave Infrared.

Exosens provides a wide range of innovative detection and imaging solutions globally, including detectors for photons, electrons, ions, neutrons, and X-rays. Their technologies are utilized in analytical instruments, industrial control and non-destructive testing. Collaborating with researchers and manufacturers, Exosens offers custom-designed detectors and components tailored to specific design requirements.

Exosens is one of the of the world leaders in the design and manufacture of neutron and gamma detectors, a key element for the safety and control of nuclear reactors but also for the safety of fuel reprocessing plants, the storage of waste and research facilities.

Our R&D, Engineering and Program Management teams work every day on our current product line, as well as innovative new technologies and solutions. These developments are extremely important to ensure that we are providing our customers with the best products possible.

We treasure all of our relations and customers around the world. To serve them as best as possible, our global Sales team answers all of the questions with support from our Business Development team, Back Office team and Marketing and communications professionals. 

Our History                  Our Partner



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