What Kokusai Co. ltd does

Kokusai Co. Ltd (国際計測器株式会社) is a Japanese manufacturer and seller of industrial testing and measurement instruments, founded in 1969 and headquartered in Tama City, Tokyo. The company designs, manufactures, and sells a comprehensive portfolio spanning AC servo motor-driven and electrodynamic vibration testing machines, performance and durability testers (torsion, tensile/compression, steering), material testing machines, shock testing machines, tire testing and production-line inspection equipment, universal balancing machines, automatic balance correction systems, shaft straightening machines, KSG-series seismometers, and logistics data recorders. Its core technology is the proprietary ultra-low-inertia, high-torque AC servo motor (now in its 4th generation), combined with in-house-developed digital vibration controllers, precision ball screws, and patented special slide and floating mechanisms that enable world-first capabilities such as electrodynamic 3-axis simultaneous vibration testing up to 2000Hz and large-scale 3-axis seismic simulation using approximately 40 synchronized servo motors.

The company sells custom-engineered capital equipment primarily through direct B2B engagement with major enterprise customers in automotive (OEMs such as Toyota, Honda, Nissan, Mazda, Subaru; Tier-1 suppliers including Denso, JTEKT, Aisin, Mitsubishi Electric, Nidec, Panasonic), tire manufacturing (Bridgestone, Sumitomo Rubber, Yokohama, Toyo domestically; Michelin, Goodyear, Hankook overseas), home appliance and motor manufacturing, government and expressway infrastructure (Ministry of Land, Infrastructure, Transport and Tourism; JR Group), and overseas customers including Bosch, Hyundai Mobis, Samsung Electronics, Ford, GM, and Hyundai. Revenue is generated through one-time equipment sales plus commissioned testing services at its in-house TEST LAB facility. Distribution is handled via wholly-owned subsidiaries and representative offices across Japan, China, Korea, Taiwan, the United States, Germany, Thailand, India, and Indonesia. Kokusai has been listed on the Tokyo Stock Exchange (currently Standard Market, ticker 7722) since February 2001 and reported ISO 9001:2015 certification across its main facilities plus February 2026 SDG certification from GCC.

The business model is high-mix, low-volume custom-engineered capital equipment with a long aftermarket service tail. Pricing is not publicly disclosed and is determined through direct technical consultation. Kokusai claims world top share in tire dynamic balancing machines (developed 1987) and domestic top share in shaft straightening machines, with its products complying with major standards including JIS, IEC 60068, IEC 61373, JIS E4031, ISO 16842, and UN ECE-R100 Series 2 Part II for battery testing, positioning the company as a standards-aligned supplier in automotive, railway, packaging, and seismic infrastructure markets.

Name

Kokusai Co. ltd

Legal name

国際計測器株式会社

Website

https://kokusaikk.co.jp

Company type

Public

Founded year

1969

Operating status

Operating

Headcount range

251–500 employees

Short description

Kokusai Co. Ltd is a Japanese manufacturer of industrial testing and measurement equipment specializing in AC servo motor-driven vibration, balancing, tire, steering, and seismic testing machines for automotive OEMs, tire makers, Tier-1 suppliers, and government infrastructure clients globally.

Ownership category

akta.pro rank

Product category

Industrial Testing and Measurement Equipment

NAICS

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513), Other Measuring and Controlling Device Manufacturing (334519)

SIC

Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Test & Measurement Equipment (Oscilloscopes, DAQ, signal analyzers, calibration benches) (IMAGAFAC)

Keywords

• Vibration testing equipment
• Balancing machines
• Tire testing systems
• Seismic simulation
• Automotive durability testers

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices19 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Sale of Testing and Measurement Equipment: Kokusai designs, manufactures, and sells a broad portfolio of testing and measurement equipment including balancing machines, vibration testers, shock testers, tire testers, steering testers, material testers, and shaft straightening machines. Revenue is generated through direct B2B sales of custom-engineered equipment to automotive, tire, and industrial manufacturers.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Kokusai Co., Ltd. designs, manufactures and sells industrial testing and measurement equipment for motors and rotating components, including electric servo motor-type and electrodynamic vibration testing machines (single-axis to 3-axis simultaneous), balancing machines, automatic balance correction systems, tire uniformity and wear testers, shaft straightening machines, shock/impact testers, steering durability and HILS test systems, and seismometers. Equipment is sold to automotive OEMs, tire manufacturers, Tier-1 automotive suppliers, railway operators, government infrastructure agencies, and home-appliance manufacturers, and the company also operates TEST LAB commissioned testing services at its Tokyo Tama facilities.

Product overview

Kokusai Co. Ltd is a comprehensive industrial testing and measurement equipment manufacturer specializing in vibration measurement technology. Its product portfolio centers on four core product lines: (1) Electric servo motor-type and electrodynamic vibration testing machines (VTS/EDS series), including single-axis, 2-axis, 3-axis simultaneous, large-table, high-speed/high-load/large-displacement, and 4-table models for packaged cargo, automotive, railway, earthquake simulation, and battery testing; (2) Performance and durability testing machines including tensile/compression, fixed torsion, axial-load torsion, high-speed torsion, power circulation torsion, low-speed full-tooth torsion, and compression testing machines; (3) Material testing machines including SMH-type 2-axis tensile testing machines; (4) Steering testing machines for durability/performance and HILS simulation. Additional products include shock testing machines (horizontal impact, free-fall, sled/thread-type), tire testing machines (wear, flat-road comprehensive performance, laboratory evaluation, production line inspection, tire & wheel assembly line equipment), universal balancing machines (BM/ABM/FABM series), automatic balance correction systems, shaft straightening machines, KSG-series seismometers, logistics data recorders, and other specialty testers (impulse winding, coil winding, gear testing). The company also offers commissioned vibration testing services (TEST LAB). All products are backed by proprietary servo motor and digital control technologies, with ISO 9001:2015 certified manufacturing.

Differentiator

Problem solved

Functional benefit

Products and services

• Electric Servo Motor-Type Vibration Testing Machines (VTS Series) AC servo motor-based vibration testing machines for single-axis, 2-axis switching/simultaneous, and 3-axis simultaneous vibration testing, including large-table, high-speed/high-load/large-displacement and 4-table models, for packaged cargo, automotive, railway, earthquake simulation and battery testing applications.
• Electrodynamic 3-Axis Vibration Testing Machine (EDS-V Series) World's first electrodynamic 3-axis simultaneous vibration testing machine using proprietary special slide mechanism and floating mechanism, enabling vibration testing up to 2000 Hz for automotive ECU / electronic components and aerospace equipment.
• Electric Servo Motor-Type Large 3-Axis Vibration Table (Earthquake Simulation) Large-scale 3-axis vibration table using approximately 40 servo motors in parallel (12 horizontal per axis, 16 vertical) with synchronized control for simultaneous 3-axis earthquake simulation, achieving 90% power consumption reduction versus hydraulic systems.
• Electric Servo Motor-Type Fixed Torsion Testing Machine Electric servo motor-driven torsional fatigue / durability testing machine for various materials and automotive parts, supporting sine, triangular, rectangular and random wave torsional testing with approximately 1/4 the power consumption of hydraulic systems.
• Electric Servo Motor-Type Axial-Load Torsion Testing Machine Electric servo-type torsional fatigue / durability testing machine for suspension bush torsion and excitation fatigue / durability testing, with no hydraulic drive source.
• Electric Servo Motor-Type Tensile/Compression Testing Machine Ultra-low-inertia AC servo motor-driven tensile/compression fatigue/durability/performance testing machine for various materials and automotive parts, supporting sine, triangular, rectangular and random wave excitation.
• SMH-Type 2-Axis Tensile Testing Machine 2-axis tensile testing machine conforming to ISO 16842:2014, jointly developed with Tokyo University of Agriculture and Technology, using a 100 kN-class proprietary servo motor hydrotech system for 9 types and arbitrary stress ratio control.
• Electric Servo Motor-Type High-Speed Torsion Testing Machine High-speed torsional durability testing machine with water-cooled ultra-low-inertia servo motor (~33,000 rad/s² angular acceleration) for engine auxiliary component and damper testing.
• Electric Servo Motor-Type Power Circulation Torsion Testing Machine Power circulation-type torsional durability testing machine using an independently developed ultra-low-inertia motor for clutch, torque converter, transmission, differential gear and CVJ testing at lower cost.
• Electric Servo Motor-Type Low-Speed Full-Tooth Torsion Testing Machine Testing machine that reproduces full-tooth meshing of gears in actual driving conditions for transmission gear full-tooth torsional fatigue durability testing.
• Electric Servo Motor-Type Packaged Cargo Compression Testing Machine Electric servo motor actuator-based compression evaluation testing machine for packaged cargo, conforming to JIS Z 0200 and JIS Z0212.
• Electric Servo Motor-Type Sled/Thread-Type Impact Testing Machine Electric servo motor-driven impact testing machine combining sled-type and decelerating-type shock in one unit, supporting 1G to 500G acceleration for automotive components and aerospace applications.
• Electric Servo Motor-Type Horizontal Impact Testing Machine Electric servo motor actuator-based horizontal impact testing machine for packaged cargo and battery certification testing per UN ECE-R100 Series 2 Part II, without hydraulic or compressed air sources.
• Electric Servo Motor-Type Free-Fall Testing Machine Electric servo motor-type packaged cargo drop testing machine conforming to JIS Z 0202, capable of safely and quietly dropping large test specimens using gravity-acceleration-plus controlled descent.
• Electric Servo Motor-Type Steering HILS Testing Machine Combined simulation testing system linking steering system performance / durability testing machine with HILS (Hardware In the Loop Systems) for virtual testing environment and real work bench testing.
• Electric Servo Motor-Type Steering Durability/Performance Testing Machine Electric servo motor-type fatigue / durability testing machine for power steering rack and pinion forward/reverse durability testing, with environmental chamber compatibility.
• Power Circulation-Type Tire Wear Testing Machine Electric servo motor-type power circulation tire wear testing machine with an ecological system using no hydraulic source, significantly reducing introduction and running costs.
• Power Circulation-Type Flat-Road Tire Comprehensive Performance Testing Machine Tire comprehensive performance testing machine connecting a high-speed transport unit and high-response torque generation device to simulate forces from vehicle and road surface, for wet grip, braking/driving performance and cornering force testing.
• Universal Balancing Machines (BM / ABM / FABM Series) Balancing machines (dynamic balancing machines) for measuring balance of rotating components including generators, turbines, AC/DC/servo motors, automotive electric motors, home appliances and precision rotating equipment, in manual, semi-automatic and fully automatic configurations.
• Automatic Balance Correction Systems (ABM / FABM Series) Semi-automatic and fully automatic balance correction systems for automotive electric motors, flywheels and next-generation automotive motors, supporting milling, drilling and weight welding correction methods and IoT / robot automation.
• Shaft Straightening Machines (Axis Warp Correction Devices) Automatic shaft warpage correction machines for automotive shafts, high-precision OA shafts, micro-shafts and construction machinery shafts, available as semi-automatic (ASC) or fully automatic (FASC) with hydraulic, hydraulic servo or servo drives.
• KSG Series Seismometer / Seismic Intensity Meter Network-compatible seismic observation devices (KSG-T2030) with ±4000 gal sensor and Japan Meteorological Agency certification, including the KOK_Web earthquake intensity network system for prefectural monitoring and data transmission.
• Logistics Data Recorder (KDR Series) Real driving vibration acceleration data recording device for electric servo motor-type 3-axis vibration testing machines, recording 3-axis time-history acceleration and temperature/humidity data for PSD analysis and vibration test reproduction.
• Laboratory Tire Evaluation Devices Laboratory tire evaluation equipment including high-speed uniformity testing machines (200 km/h+), 6-component tire characteristic performance evaluation testers, inside drum testing machines for truck/bus tires, and high-speed drum durability testing machines (up to 450 km/h).
• Tire & Wheel Assembly Line Testing Equipment Inline testing equipment for automotive tire assembly lines including high/low-speed uniformity measurement, tire fitting machines, tire and wheel assembly balancing machines, truck/bus tire balancing machines, and wheel runout / balancing measurement.
• Tire Manufacturer Production Line Inspection Equipment Production line inspection equipment for tire manufacturers including high-speed uniformity / dynamic balance combined machines, low-speed uniformity / dynamic balance machines, truck/bus tire uniformity machines and dynamic balancing machines.
• Earthquake Simulation System World's first earthquake simulation system using AC servo motors as actuators to achieve NS, EW, UD 3-axis earthquake simulation, reproducing major earthquakes (Hyogo-ken Nanbu, Niigata Chuetsu-oki, Tohoku).
• Packaged Cargo Vibration Testing System Integrated packaged cargo vibration testing system combining the logistics data recorder (KDR series) and electric servo motor-type 3-axis vibration testing machine (VTS series) for transport environment data collection, PSD analysis and 3-axis simultaneous vibration reproduction.
• Vibration Testing Outsourcing (TEST LAB) Commissioned vibration testing service using the company's own testing equipment, capable of large product testing, high-acceleration testing and 3-axis simultaneous vibration testing at the third factory in Tokyo Tama City.
• Electric Servo Motor-Type Dual (Composite) Impact Testing Machine Electric servo motor-type dual (composite) impact testing machine for next-generation automotive mounted components, complementing the shock test product family.
• Other Testing Machines (Impulse Winding, Coil Winding, Gear Testing, Motor Coil, Seismograph) Includes impulse winding testers (DW series), comprehensive coil winding testers (AW series), fully automatic gear engagement testers, motor coil comprehensive testers and KSG series seismographs.

Quantifiable outcome

• 90% reduction in power consumption vs. hydraulic vibration testing systems
• +4 more outcomes

Named customers28 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

One partnership is on record.

• Emic Corporation (エミック株式会社)minorStrategic or Co-development Partner · 1 April 2012Kokusai entered into a business partnership agreement with Emic Corporation in April 2012. Emic is a Japanese company specializing in environmental testing and measurement solutions. The partnership enables collaborative development and marketing of testing solutions combining both companies' technologies and expertise.

Scale indicators7 records

Recent moves11 records

Expansion highlights6 records

Direct peers

• Data Physics Corporation: US-based specialist in vibration test equipment, shakers, and signal analysis. Comparable as a niche vibration testing equipment peer with similar end customers in aerospace, automotive, and packaging test.
• Instron (Illinois Tool Works): Global leader in materials and structural testing systems, including tensile, fatigue, and impact testers. Directly comparable to Kokusai's performance/durability and material testing product lines for automotive and industrial customers.
• MTS Systems: US-based manufacturer of material and component test systems including servo-hydraulic and electromechanical test machines. Overlaps directly with Kokusai's performance/durability testing product lines for automotive and aerospace applications.
• IMV Corporation: Japan-listed direct competitor specializing in vibration testing systems and seismic simulation tables. Highly comparable product portfolio (electrodynamic and servo-hydraulic shakers) and similar Japanese automotive customer base makes it the closest direct peer to Kokusai.
• Schenck RoTec (Dürr AG): Germany-based global leader in balancing machines and vibration test technology. Directly comparable product line (industrial balancing machines) and shares Kokusai's automotive and motor manufacturer customer base across Europe.
• ESPEC Corporation: Japan-listed manufacturer of environmental test chambers and reliability test equipment used for automotive electronics, semiconductor, and battery testing. Comparable as a Japanese environmental and reliability T&M vendor serving similar customer segments.
• Hottinger Brüel & Kjær (HBK): Denmark-based global leader in vibration, acoustic, and sound measurement solutions. Directly comparable in offering test and measurement instruments for automotive NVH and structural testing, with a much broader global scale and portfolio.

Broad incumbents

• Shimadzu Corporation: Japanese industrial incumbent with extensive testing and measurement portfolio spanning materials testing, analytical instruments, and industrial equipment. Broadly comparable as a Japanese test & measurement manufacturer but with a much wider scope beyond vibration.
• HORIBA, Ltd. Japan-listed global test and measurement company with automotive test systems including engine, driveline, and emissions test cells. Comparable as a Japanese test equipment incumbent serving automotive OEMs and Tier-1s, though its core franchise is in emissions and analytical instruments.

Others

• Emic Corporation: Japanese environmental testing and measurement solutions provider that entered a strategic partnership with Kokusai in April 2012. Closely adjacent in environmental and vibration testing scope, with explicit collaborative relationship per the source data.

Market position

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Subsidiaries6 records

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 Kokusai Co. ltd