What MK Test Systems does

MK Test Systems is a UK-based designer and manufacturer of automatic electrical test equipment serving safety-critical and quality-critical manufacturing and aftermarket operations. Founded in 1992 in Wellington, Somerset, the company has delivered over 3,000 test systems to customers in 38 countries. Its product portfolio centres on the Automeg family of automatic wire harness test systems, paired with the proprietary MKAT Gen3 test management software, and is complemented by specialised instruments — BLRT and BLTU4 bond/loop resistance testers, the intrinsically safe ExLRT, and the modular RTS real-time scanning system. Together these products address continuity, insulation, HiPot/dielectric withstand, loop and bond resistance, and functional testing for wire harnesses, engines, APUs, LRUs, subsea connectors, and rail signalling assemblies.

The company's technology foundation is the integration of proprietary hardware with MKAT software whose Automatic Program Generation (APG) capability converts imported ECAD netlists and wiring schedules into executable test programs, reducing program-generation time from months to under an hour per documented case. Several products carry major OEM approvals — BLRT for Boeing and Embraer, BLTU4 for Airbus, ExLRT for Boeing with ATEX, IECEx, and UL Zone 0 certification — and major enterprise customers include Boeing, Airbus, GE Aviation, Rolls-Royce, Lufthansa Technik, Lockheed Martin, BAE Systems, Alstom, CRRC, Daimler Truck, and MAN Trucks.

MK Test Systems generates revenue through a combination of configured hardware sales (Automeg, RTS, BLRT, ExLRT, BLTU4 systems), MKAT software licences and upgrades (treated as recurring), custom interface cable sets and accessories, and recurring service and support contracts. Pricing is quote-based on customer-specific configurations, with multi-year service and support contracts. The company sells via a direct enterprise sales team supported by specialist representatives and distributors across EMEA, the Americas, and Asia, targeting aerospace, defence, automotive, rail, subsea, and power and control verticals. MK Test Systems is a wholly-owned subsidiary of Halma plc (LSE: HLMA).

Name

MK Test Systems

Legal name

MK Test Systems Limited

Website

https://mktest.com

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

11–50 employees

Short description

MK Test Systems designs and manufactures automatic electrical test equipment and proprietary MKAT software for wire harness, bond, loop resistance, and functional testing. It serves enterprise customers in aerospace, defence, automotive, rail, subsea, and power and control industries.

Ownership category

akta.pro rank

Product category

Automatic Electrical Test 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), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451), Testing Laboratories and Services (541380)

SIC

Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Industrial Instruments For Measurement, Display, And Control (3823), Measuring & Controlling Devices, Nec (3829), Services-Testing Laboratories (8734)

akta.pro primary industry

Avionics Test, Simulation & Calibration Equipment (IMABAFAN)

akta.pro secondary industries

Military Aerospace Ground Support Equipment (GSE) & Test Systems (IMABAMAL), Passenger Vehicle Final Assembly & End-of-Line Testing (ICE) (IMACAAAE), Powertrain Test, Dyno & Validation Services (Post-rebuild/Reman QA) (TLAKALAN), Regulatory Compliance Audit Support & Documentation (Emissions/Safety/Environmental) (TLAKANAO)

Keywords

• Automatic wire harness testing
• Electrical test equipment
• Loop resistance testing
• Aerospace test systems
• Bond testing instruments

Headquarters

HQ city

Wellington

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Automatic Test Equipment Hardware: Sale of automatic wire harness test systems including Automeg, RTS, BLRT, ExLRT, and BLTU4 models configured to customer requirements. Systems range from entry-level to high-specification multibus configurations.
2. MKAT Software Licenses and Upgrades: Test management software with Gen3 generation featuring automatic program generation, operator guidance, and reporting. Software upgrades and licensing for existing customers.
3. Interface Cable Sets and Accessories: Custom interface cable sets designed to exact customer requirements, along with probes, couplers, and other testing accessories.
4. Service and Support: Preventative maintenance, calibration, technical support, and training services. Includes support contracts and service engineer visits.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

MK Test Systems designs, manufactures, and supplies automatic electrical test equipment for wire harness, bond, loop resistance, and functional testing. Its product portfolio centres on the Automeg automatic wire harness test system paired with the proprietary MKAT test management software, complemented by specialised testers (BLRT, BLTU4, ExLRT, RTS) and turnkey solutions such as the Engine Test System Solution and Hybrid Copperoptic Test System. The offering targets OEMs and MRO operators in aerospace, defence, automotive, rail, subsea, and power/control industries with configurable, OEM-approved test systems.

Product overview

MK Test Systems designs and manufactures automatic electrical test equipment for demanding industries including aerospace, defence, automotive, power and control, subsea, and rail. The product portfolio is organized around the Automeg platform as the core automatic test system, paired with the MKAT gen3 test management software that provides automatic program generation, operator guidance, and data analysis capabilities. Supporting hardware includes the RTS modular real-time scanning system for high-speed testing during harness build, and a range of specialized resistance testers: BLRT for bond/loop/joint testing (200Hz for Boeing/Embraer), BLTU4 for loop testing (1kHz for Airbus), and ExLRT as an intrinsically safe loop tester. The company also offers turnkey solutions including the Engine Test System Solution for MRO operations and a Hybrid Copperoptic Test System for combined copper/fibre cable testing.

Differentiator

Problem solved

Functional benefit

Brands

• Automeg: Automatic wire harness test system for continuity, insulation, shorts, hipot, and functional testing.
• MKAT
• BLTU4
• BLRT
• ExLRT
• RTS

Products and services

• Automeg Automatic Wire Harness Test System Automatic wire harness test system offering 2-wire and 4-wire resistance measurements, continuity testing, insulation testing, hipot/dielectric testing, and functional testing capabilities. Combines multi-bus function testing technology with APG (Automatic Program Generation) for rapid test program creation. Used by aerospace, automotive, defence, rail, and subsea manufacturers and MRO operators.
• MKAT Test Management Software (Gen3) Gen3 test management software providing measurement, reporting, automatic test program generation, operator guidance, and trend analysis. Combines harness testing with functional testing in a single hook-up, with API for master-controller integration. Rated easy-to-use by 87% of customers and supports 8 languages.
• RTS (Real Time Scanning) Modular Test System Modular, high-speed, rapid deployment automatic electrical test system with miniaturized components. Enables testing during harness build with low current/voltage safe measurement signals, with satellite modules ranging from 32 to 360 test points and LED pass/fail indicators.
• BLRT Bond/Loop/Joint Resistance Tester Fully automatic bond, loop, and joint resistance tester with built-in operator instructions and full data traceability. Uses 4-wire Kelvin resistance measurements at 200Hz frequency for micro-Ohm accuracy. Approved for Boeing and Embraer aircraft, weighing 7kg for single-operator use.
• BLTU4 Bond/Loop Tester Automatic, portable bond and loop resistance tester with operator guidance. Provides automatic testing of ground bonding points on Airbus aircraft and other large structures with full data traceability for compliance.
• ExLRT Intrinsically Safe Loop Resistance Tester Intrinsically safe loop resistance tester certified for Zone 0 use on fuelled aircraft, over 82% lighter than legacy LRT 'yellow box'. Approved by Boeing with ATEX, IECEx, and UL intrinsic safety certification. Features LED and button controls on probe for single-operator use.
• Function Test Systems Specialist Automeg models for testing wiring harness function and integrity combined with active components such as relays, switches, contactors, diodes, LEDs, and actuators. Features stimulus mode up to 250V AC and 220V DC with automatic program generation.
• Engine Test System Solution Turnkey test solution for aircraft engines, APUs (Auxiliary Power Units), and LRUs (Line Replaceable Units) comprising Automeg test system, custom interface cable sets, and pre-written test programs aligned to customer maintenance manuals (CMMs). Designed for MRO teams supporting GE90, CFM56, and LEAP engine platforms.
• Hybrid Copperoptic Test System Compact COTS test system integrating copper and fibre optic testing capabilities into a single system for testing hybrid cables and connectors combining copper and fibre.
• Interface Cables and Test Accessories Custom interface cable sets, probes, couplers, and adaptors designed to exact customer requirements for use with MK Test automatic test systems.

Quantifiable outcome

• 56% reduction in testing time for Ventura Systems using Automeg function test systems for bus and tram door systems
• +6 more outcomes

Named customers20 records

Segments6 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Scale indicators11 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• DIT-MCO International: Specialises in automatic wire harness test systems for aerospace, defence, and rail — the closest direct competitor to MK Test's Automeg platform in the aviation/defence harness testing niche.
• Schleuniger Group: Global supplier of wire processing and testing equipment, including automated cable harness test systems serving automotive, aerospace, and industrial customers; directly comparable to MK Test's Automeg and RTS product families.
• Cirris Systems: Manufactures cable and harness test systems used across aerospace, defence, and medical device manufacturing; overlaps with MK Test's wire harness continuity/insulation testing solutions.
• CAMI Research: Developer of the CableEye brand of cable and harness test instruments, serving aerospace, defence, and medical markets with continuity and hipot testing functionality comparable to MK Test's Automeg range.
• Weetech GmbH: German manufacturer of electrical safety and wire harness test equipment for automotive, aerospace, and industrial customers; directly comparable in safety/continuity/insulation testing functionality.

Broad incumbents

• Komax Group: Swiss-listed global leader in automated wire harness production and testing equipment, with much broader scale and automotive/industrial focus than MK Test; addresses the same aerospace and rail harness-testing customer base.
• Megger Group: Established manufacturer of electrical test and measurement equipment including insulation, continuity, and low-resistance testers; competes broadly with MK Test's bond/loop resistance and hipot testing offerings.
• Fluke Corporation: Fortive-owned global brand in electrical test and measurement instruments; serves industrial and aerospace MRO customers with portable electrical testers that overlap with MK Test's loop resistance and continuity products.
• NI (formerly National Instruments): Provider of modular PXI-based automated test platforms used widely in aerospace and defence functional testing; a broader incumbent whose modular approach competes with MK Test's verticalised Automeg systems.

Emerging players

• ATEQ: Specialist in leak and flow testing equipment with growing presence in aerospace and industrial applications; adjacent rather than direct competitor, but overlaps in MRO-focused test instrumentation for aerospace customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/mk-test-systems
• Xx.com/MKTestSystems

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 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 MK Test Systems