i3system

Name

i3system

Legal name

아이쓰리시스템(주) (i3system, Inc.)

Website

https://i3system.com

Company type

Public

Founded year

1998

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Infrared Imaging Sensors

NAICS

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451), Irradiation Apparatus Manufacturing (334517), Other Measuring and Controlling Device Manufacturing (334519)

SIC

Search, Detection, Navagation, Guidance, Aeronautical Sys (3812), Optical Instruments & Lenses (3827), X-Ray Apparatus & Tubes & Related Irradiation Apparatus (3844), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Electro-Optical/Infrared (EO/IR) Sensors & Targeting Systems (IMABAGAC)

akta.pro secondary industries

Imaging Sensors (CMOS/CCD/ToF/Depth) (HDAHALAF), Optical & Light Sensors (Photodiodes/ALS/Color/UV) (HDAHALAE), Military Power Supplies, RF/Microwave Components & Ruggedized Electronics (IMABAGAJ), Sensors, MEMS & Imaging ICs (HDAHAAAG)

Keywords

• Infrared detectors
• Thermal imaging sensors
• Uncooled micro-bolometers
• SWIR imaging sensors
• X-ray imaging detectors

Headquarters

HQ city

Yusong

HQ country

South Korea

HQ region

Asia

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Cooled Infrared Detectors: The primary revenue driver at 85% of infrared product sales and ~81% of total revenue. Cooled IR detectors for military applications including T2SL and InSb-based products. Higher margin product category with strong export demand. Supplied to Korean military programs and exported to 20+ countries.
2. Uncooled Infrared Detectors and Cameras: Uncooled μ-bolometer detectors and Thermal Expert branded thermal cameras for commercial and defense applications. 15% of infrared product sales. New Dungok Campus factory (completed Oct 2025) specifically built to grow uncooled sensor business and 8μm pitch product production.
3. InGaAs SWIR Detectors: SWIR (Short-Wavelength Infrared) detectors for industrial inspection, anti-counterfeiting, and environmental monitoring applications. Included in the 95.3% infrared sensor revenue share.
4. X-ray Detectors: Direct-conversion X-ray detectors for dental panoramic and cephalometric imaging equipment. Revenue classified under 'Other' segment at 4.7% of total revenue.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

i3system designs and manufactures cooled and uncooled infrared image sensors (using InSb, T2SL HOT, and μ-Bolometer technologies), InGaAs SWIR detectors, direct-conversion X-ray detectors for dental imaging, and space-grade camera electronics. Products are sold to Korean and allied military forces for thermal weapon sights, precision-guided munitions, and surveillance, as well as to OEMs of dental imaging systems and commercial thermal cameras. The company also produces IRSI/IRSP scene projector systems for defense test and evaluation.

Product overview

i3system is a Korean sensor technology company specializing in the design and manufacture of thermal imaging detectors and X-ray sensors for defense, aerospace, and medical applications. The company offers three main product lines: cooled infrared detectors (using T2SL Type-II Superlattice and InSb technologies for MWIR and LWIR wavelengths), uncooled infrared detectors (using μ-Bolometer technology for LWIR), and InGaAs SWIR detectors. The cooled detector portfolio includes the Super MARKOS, MARKOS, LUKAS Pro, DI, iCP, and iCE series serving military thermal imaging, precision-guided weapons, and surveillance applications. The uncooled detector line features various resolution formats (1280×1024 to 320×240) with pixel pitches from 8μm to 17μm, including the Thermal Expert branded handheld cameras for commercial markets. The SWIR lineup offers InGaAs detectors for near-infrared applications. Additionally, i3system produces direct-conversion X-ray detectors for dental panoramic and cephalometric imaging, and supplies space-grade camera electronics including the CAS500 satellite FPA and lunar orbiter LUTI camera module. The company also offers infrared scene simulation systems (IRSI and IRSP) for defense testing and training applications.

Differentiator

Problem solved

Functional benefit

Brands

• Thermal Expert: Sub-brand for uncooled infrared thermal imaging cameras for commercial/civilian use including security, surveillance, night vision, and automotive applications
• MARKOS
• Super MARKOS SL
• Super MARKOS LT
• LUKAS Pro
• IRSI
• IRSP

Products and services

• Cooled T2SL Infrared Detectors High Operating Temperature (HOT) Type-II Superlattice cooled infrared detectors designed for long-range thermal imaging, long-range observation systems, and weapons-grade defense applications. Targeted at military and defense prime contractors requiring high-sensitivity MWIR/LWIR imaging.
• Cooled InSb Infrared Detectors Indium Antimonide (InSb) cooled infrared detectors providing high-sensitivity MWIR imaging across resolutions from 320 to 1280. Used in thermal weapon sights, surveillance systems, and precision-guided munitions where high sensitivity and wide dynamic range are required.
• Uncooled μ-Bolometer LWIR Detectors Uncooled micro-bolometer Long-Wave Infrared (LWIR) detectors available in 1024×768, 640×480, and 384×288 resolutions with 12μm and 17μm pixel pitch options. Used in commercial thermal cameras, military vehicle optics, and security/surveillance systems.
• InGaAs SWIR Detectors Indium Gallium Arsenide (InGaAs) Short-Wave Infrared (SWIR) detectors in 1280×1024 and 640×512 formats with 15μm and 25μm pixel pitch options. Used in industrial inspection, semiconductor inspection, and military night vision applications.
• Panoramic X-ray Detector Direct-conversion panoramic dental X-ray detector using Cadmium Telluride (CdTe) technology for OEM integration into dental panoramic imaging systems. Provides high-resolution imaging with reduced radiation dose.
• Cephalometric X-ray Detector Direct-conversion cephalometric dental X-ray detector using Cadmium Telluride (CdTe) technology for OEM integration into cephalometric dental imaging systems. Companion product to the panoramic detector.
• Thermal Expert Thermal Imaging Cameras Thermal Expert brand thermal imaging cameras sold under multiple SKUs (TE-SQ1, TE-V2, TE-V1, TE-Q1, TE-Q2) targeting firefighting, building inspection, industrial maintenance, security, and outdoor/professional users. Built on i3system's proprietary uncooled micro-bolometer technology.
• IRSI / IRSP Infrared Scene Projectors Infrared Scene Injector (IRSI) and Infrared Scene Projector (IRSP) systems used for hardware-in-the-loop testing and evaluation of infrared sensors and seekers in defense applications. Sold to defense agencies and prime contractors.
• Space-grade Camera Electronics (CAS500 FPA and LUTI CEM) Space-grade Focal Plane Assembly (CAS500 FPA) and Camera Electronics Module (LUTI CEM) designed for Earth observation and satellite imaging missions. Sold to space agencies and aerospace satellite integrators requiring radiation-tolerant imaging electronics.

Quantifiable outcome

• Over 80% market share of infrared detectors used by the South Korean military
• +6 more outcomes

Named customers3 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Scale indicators7 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• Lynred: France-based leader in cooled and uncooled infrared detectors (formerly Sofradir/ULIS). Directly comparable as a manufacturer of high-performance MWIR/LWIR InSb and T2SL detectors for defense, space, and commercial markets, serving the same global primes and integrators as i3system.
• SCD (Semi-Conductor Devices): Israeli developer and manufacturer of cooled and uncooled infrared detectors (InSb, T2SL, XBn) for defense, homeland security, and commercial applications. Closely comparable technology portfolio and customer base in military IR imaging.
• InfraTec: German manufacturer of high-quality infrared detectors and cameras, including uncooled micro-bolometers and cooled units. Comparable in serving defense, security, and industrial NDT thermography customers with proprietary IR sensor technology.
• HGH Infrared Systems: French designer and manufacturer of IR cameras, thermal imaging scopes, and blackbody calibration sources for defense, industrial, and security applications. Comparable customer profile and overlap in cooled IR camera/monitor offerings.
• Excelitas Technologies: North American photonics and sensor manufacturer offering IR detectors, thermal imaging modules, and X-ray detectors for defense, medical, and industrial markets. Comparable in mixed IR/X-ray sensor portfolio and OEM component business model.

Emerging players

• Axis Communications: Network video and thermal camera specialist serving commercial security, surveillance, and traffic monitoring markets. Overlaps with i3system's Thermal Expert commercial thermal imaging line and growing uncooled detector ambitions.
• Vumii (Aimetis / Opgal): Thermal imaging and night vision camera developer for perimeter security, defense, and industrial applications. Comparable in commercial/industrial thermal cameras leveraging uncooled IR detectors, and as a downstream integrator of IR sensor modules.

Broad incumbents

• L3Harris Technologies: Major US defense prime with a broad electro-optic/IR portfolio across airborne, ground, and maritime platforms. Competes with i3system indirectly through integrated IR systems and subsystems, particularly in US and allied defense programs.
• Teledyne FLIR: Now part of Teledyne Technologies, the global market leader in thermal imaging cameras and IR detector cores (InSb, T2SL, micro-bolometer). Competes with i3system across both cooled/uncooled detector modules and end-product thermal cameras for defense, industrial, and commercial markets.
• Leonardo DRS: US-headquartered Leonardo subsidiary providing advanced defense electronics, including IR sensor systems integrated into platforms such as ground combat vehicles and surveillance systems. Overlaps with i3system's Korean military vehicle and surveillance use cases.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Instagraminstagram.com/i3system
• LinkedInlinkedin.com/company/i3system-inc

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds1 record

Investors2 records

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 i3system