What Harder Digital Group does

Harder Digital Group (HARDER.digital Ingenieur- und Industriegesellschaft mbH) is a privately-held German manufacturer of image intensifier tubes and complementary electro-optical components, founded in 1999 and headquartered in Woltersdorf, Germany. The company produces Gen I, high-performance Gen II, and state-of-the-art Gen III image intensifier tubes in 18mm and 25mm formats (with custom 40mm variants), alongside phosphor screens, MCP-mounted detectors, thermal imaging modules based on uncooled microbolometer FPA, and the specialized ultra-high-vacuum processing equipment used to manufacture such tubes internally. Its products serve defense and homeland security customers globally, with exports to over 30 countries across all 7 continents certified by leading Night Vision equipment manufacturers and regulated by German export authorities.

The company operates a dual-site manufacturing footprint: a 2,500+ sqm headquarters facility in Woltersdorf, Germany featuring ISO-6 and ISO-7 clean rooms and a 100-meter Night Vision Systems testing tunnel, combined with a 2,200 sqm subsidiary facility (HARDER.digital SOVA) in Nis, Serbia — acquired through the privatization of the former Ei Sova enterprise between 2008 and 2010. Revenue is generated through direct B2B enterprise sales of standard and custom-configured hardware to defense OEMs and military end-users, with quote-based pricing on specialized low-volume components rather than standardized catalog offerings. As of June 2026, the company has been fully consolidated into THEON International Plc's A.R.M.E.D ecosystem portfolio, positioning it as the image intensifier technology supplier for the Bundeswehr's Future Soldier (Infanterist der Zukunft) program.

Name

Harder Digital Group

Legal name

HARDER.digital Ingenieur- und Industriegesellschaft mbH

Website

https://harderdigital.com

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

1–10 employees

Short description

Harder Digital Group is a German manufacturer of Gen I, II, and III image intensifier tubes, MCP-based detectors, and thermal imaging modules for defense forces and night vision equipment OEMs globally. It operates dual production sites in Germany and Serbia and was consolidated into THEON International in 2026.

Ownership category

akta.pro rank

Headquarters

HQ city

Woltersdorf

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Personnel, Infrastructure, Technology or R&D, Supply Chain, Marketing or Sales

Revenue model

1. Image Intensifier Tube Sales: Manufacturing and selling Gen I, Gen II, and Gen III image intensifier tubes to defense manufacturers and military forces. Revenue generated from direct product sales of standard and custom configurations.
2. Detection Equipment Sales: Sales of phosphor screens, MCP-mounted detectors, and tailored detection modules for scientific, industrial, and defense applications.
3. Manufacturing Equipment Sales: Sale of specialized manufacturing equipment for image tube production including processing stations, ultra high vacuum equipment, and chemical processing customized equipment.
4. Thermal Imaging Module Sales: Sales of thermal imaging modules as part of complete night vision solution provision to customers.

Go-to-market motion1 record

Distribution channels1 record

Core offering

HARDER.digital designs, develops, and manufactures Generation I, II, and III image intensifier tubes (inverting and non-inverting, 18/25/40mm formats) plus custom-built intensifiers for special applications. The company also manufactures MCP-screen detectors, tailored detection modules, and thermal imaging modules, and sells the ultra-high-vacuum processing equipment used internally to fabricate image tubes. Customers are defense equipment manufacturers, military forces, homeland security forces, and scientific/industrial users in 30+ countries.

Product overview

HARDER.digital is a hardware-focused company manufacturing night vision and imaging technology products. The product portfolio centers on image intensifier tubes across three generations (Gen I, Gen II, Gen III), complemented by detector systems (phosphor screens, MCP mounted detectors, tailored detection modules) and manufacturing processing equipment (photocathode processing, screen processing, spin coating, substrate preparation). The company recently introduced thermal imaging modules based on uncooled microbolometer FPA technology. Standard products include HD-1400/1405 (25mm inverting intensifiers), HD-2100/2102 (18mm Gen II intensifiers), HD-1520/1521 (18mm Gen III intensifiers), and HD-1430 (40mm single stage intensifier), along with custom tailored image intensifiers for special applications. The processing equipment enables internal manufacturing of image tubes, while the thermal imaging modules represent the company's expansion into complete night vision solutions. Export activities span over 30 countries across all seven continents.

Differentiator

Problem solved

Functional benefit

Brands

• HARDER.digital SOVA: Serbian subsidiary specializing in Image Intensifiers Manufacturing, formerly known as Ei Sova.

Products and services

• HD-1400 25mm Inverting Image Intensifier 25mm electro-statically and proximity focused inverting image intensifier tube (Luminous Sensitivity 300-450 µA/lm; Luminous Gain 40,000-70,000; SNR 3.2-4.5; Resolution 28-40 lp/mm) used for observation, aiming, and navigation devices, including drivers periscopes for a wide range of vehicles. Target customers: defense OEMs and military forces.
• HD-1405 25mm Inverting Image Intensifier and Magnifier Assembly 25mm electro-statically and proximity focused inverting image intensifier with bonded fiber optical magnifier (Luminous Sensitivity 300-450 µA/lm; Luminous Gain 15,000-30,000; Resolution 25-36 lp/mm) used for observation devices and drivers periscopes for a wide range of vehicles. Target customers: defense OEMs and military forces.
• HD-2100 18mm Inverting Image Intensifier (Gen II Premium) Generation II Premium 18mm double-proximity focused inverting image intensifier tube (Luminous Sensitivity 500-750 µA/lm; Luminous Gain 35,000-65,000; SNR 18-23; Resolution 57-72 lp/mm) used for observation, aiming, navigation, and scientific devices including ANVIS pilots goggles, monoculars, sights, weapon sights, and special scientific, astronomy, and medical applications.
• HD-2102 18mm Non-Inverting Image Intensifier (Gen II Premium) Generation II Premium 18mm double-proximity focused non-inverting image intensifier tube (Luminous Sensitivity 500-750 µA/lm; Luminous Gain 35,000-65,000; SNR 18-23; Resolution 57-72 lp/mm) used for observation, aiming, navigation, and scientific devices such as PVS7 goggles and sights, plus astronomy, medical, and scientific applications.
• HD-1520 Inverting Image Intensifier (Gen III) Generation III 18mm double-proximity focused inverting image intensifier tube (Luminous Sensitivity 1500-2500 µA/lm; Luminous Gain 40,000-70,000; SNR 19-28; Resolution 57-72 lp/mm) used for observation, aiming, navigation, scientific devices, ANVIS pilots goggles, monoculars, sights, and weapon sights.
• HD-1521 Non-Inverting Image Intensifier (Gen III) Generation III 18mm double-proximity focused non-inverting image intensifier tube (Luminous Sensitivity 1500-2500 µA/lm; Luminous Gain 40,000-70,000; SNR 19-28; Resolution 57-72 lp/mm) used for observation, aiming, navigation, scientific devices, PVS7 goggles, sights, and astronomy/medical applications.
• HD-1430 40mm Single Stage Image Intensifier 40mm single-stage electro-statically focused inverting image intensifier tube (Luminous Sensitivity 200-400 µA/lm; Luminous Gain 100; Resolution 57-68 lp/mm) used for observation and special applications devices.
• Custom Image Intensifiers Bespoke image intensifiers including two- or three-stage Generation I intensifiers, standard 18/25/40 mm diameter tubes with various photocathode types, high-speed gating variants for special applications, multiple phosphor screens, and custom external mechanical interfaces. Target customers: defense, scientific, and industrial programs with unique mission requirements.
• Phosphor Screens Phosphor screens for two-dimensional visualization of electrons, charged particles, and X-ray radiation, available on different substrates using various phosphor application techniques and supplied as mounted assemblies fully compatible with high-vacuum utilization conditions. Target customers: scientific and industrial detector integrators.
• MCP Mounted Detectors MCP (Microchannel Plate) based detectors using various phosphor application techniques on different substrates (fiber-optic plates, fiber-optic tapers, glass windows), with single and multiple MCP structures of various useful diameters and special MCP designs, supplied as mounted assemblies compatible for high-vacuum utilization conditions. Target customers: scientific detector OEMs.
• Tailored Detection Modules Phosphor-MCP based detectors for two-dimensional visualization of electrons, charged particles, and X-ray radiation, implementing various phosphor application techniques, substrates, CCD/CMOS coupling/bonding, single and multiple MCP structures, and specially designed high-vacuum assemblies with high reliability and repetition rate. Target customers: scientific and industrial detection system integrators.
• Photocathode Processing Equipment Ultra High Vacuum Bakeable System for evaporation processing designed to manufacture special vacuum sealed-off devices in oil-free clean ultra-high-vacuum conditions, achieving 10-8 mbar after bake-out at 400°C for 8+ hours to enable processing of highest-sensitivity photocathodes. Target customers: image tube and vacuum electronics manufacturers.
• Screen Processing Equipment Equipment for phosphor screen manufacturing including thin film layers and various lacquer applications, with programmable systems and precise dispensers enabling stable production processes and consistent high-quality output. Target customers: image tube manufacturers.
• High Speed Brushless Spinner High Speed Spin coating machinery for various chemical and wet processing applications, implementing a brushless motor capable of operating up to 12,000 RPM with an automatic programmable dispensing unit for numerous liquids designed for individual customer coating processing. Target customers: image tube and vacuum electronics manufacturers.
• Substrate Preparation Equipment Plasma cleaning systems for effective substrate surface cleaning and preparation for evaporation processing, removing small amounts of contaminants without hazardous solvents and tailored to customer processing needs. Target customers: image tube and vacuum electronics manufacturers.
• Thermal Imaging Modules Thermal imaging modules based on uncooled microbolometer Focal Plane Array (FPA) using a TEC-less/Shutter-less algorithm for low energy consumption, with standard analog TV CCIR output and a specialized serial digital interface for computer connection and real-time video data transmission. Target customers: defense and security system integrators building complete night vision solutions.

Quantifiable outcome

• Luminous Sensitivity up to 2500μA/lm for Gen III tubes
• +3 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• THEON International PlccoreStrategic or Co-development Partner · 22 June 2026THEON International Plc announced full consolidation of Kappa and Harder Digital as part of their Q2 2026 order intake acceleration. Harder Digital operates as part of THEON's A.R.M.E.D ecosystem portfolio, providing image intensifier technology for defense applications including the Bundeswehr's Future Soldier program (Infanterist der Zukunft).

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Photonis: Photonis is a European leader in image intensifier tube manufacturing, producing Gen II and Gen III IITs for defense, scientific, and industrial night vision applications. It is the most directly comparable peer to Harder Digital, competing head-to-head in tube supply to night vision OEMs globally.
• Newcon Optik: Newcon Optik is a Canadian manufacturer of night vision devices, image intensifier systems, and thermal imagers for military and law enforcement. Comparable to Harder as a specialist night vision manufacturer with a similar size profile and customer base across defense and security markets.

Broad incumbents

• L3Harris Technologies: L3Harris is a major US defense prime that manufactures Gen III image intensifier tubes (via its Night Vision business) as part of a broad portfolio spanning avionics, communications, and electronic warfare. It is the dominant Western IIT supplier and a benchmark for Harder Digital's addressable market and certifications.
• Elbit Systems: Elbit Systems is an Israeli defense electronics company that produces night vision systems and image intensifier tubes through its Elop subsidiary, serving military forces worldwide. Comparable to Harder in customer base and end-product applications, but operates at far greater scale across broader defense categories.
• BAE Systems (Electronic Systems): BAE Systems manufactures image intensifier tubes and night vision devices for US and allied militaries. As a broad incumbent defense prime, it competes with Harder for night vision component supply but offers a much wider portfolio including combat vehicles, naval, and aerospace systems.
• Thales Group: Thales produces optronics and night vision systems including image intensifier-based solutions for military forces, particularly in Europe. As a broader defense and aerospace incumbent, Thales overlaps with Harder on end-user applications but competes at the system level rather than as a tube specialist.
• Teledyne FLIR Defense: Teledyne FLIR is a leading provider of thermal imaging cameras and night vision systems for defense and security, including uncooled microbolometer technology overlapping with Harder's thermal imaging modules. Comparable in product adjacency but operates at much larger scale across multiple sensor modalities.
• Leonardo DRS: Leonardo DRS manufactures advanced night vision systems including image intensifier-based soldier systems for the US military. Comparable end-market focus, but as a subsidiary of the larger Leonardo Group it operates with significantly greater resources and a broader defense electronics portfolio than Harder Digital.
• Safran Electronics & Defense: Safran produces optronics and night vision equipment including image intensifier-based systems for European military forces through its electronics and defense division. Overlaps with Harder on night vision end-applications and European defense customers, though Safran operates at much broader scale across propulsion, avionics, and defense electronics.

Others

• Knight Optical: Knight Optical is a supplier of custom optical components, filters, and assemblies used in night vision and imaging systems. It is an adjacent ecosystem supplier rather than a direct competitor, comparable to Harder in custom optical/sensor component supply for defense and scientific customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/harder.digital-gmbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Harder Digital Group