T&R Test Equipment
T&R Test Equipment Ltd. is a UK-based, privately held manufacturer of heavy current and high voltage electrical test equipment — including primary and secondary current injection systems, digital micro-ohmmeters and HV AC/DC test sets — serving power utilities, electrical contractors, industrial operators, hire houses and government buyers across more than 30 countries via direct sales and authorised distributors.
- Company typePrivate
- Founded1980
- HeadquartersGuildford, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What T&R Test Equipment does
T&R Test Equipment Ltd. is a UK-based, privately held manufacturer of specialised electrical test and measurement equipment, founded in 1980 and headquartered in Guildford, Surrey. The company operates within T&R Group alongside Transformers & Rectifiers Ltd. and High Voltage Instruments Ltd., collectively representing more than 70 years of combined experience in electrical infrastructure equipment. Its product portfolio is organised around three engineering pillars: primary and secondary current injection test systems (named products include 50ADM-P, 200ADM-P Mk2, 750ADM Mk4 and CU-Ps Mk2 — the latter rated at 20kVA with 5000A/6000A loading units, true RMS metering, single-cycle capture and USB waveform/THD storage), digital micro-ohmmeters (DMO200), and a broad range of high voltage AC/DC test systems, cable impedance systems and handheld testers used for protection relay testing, circuit breaker validation, current transformer verification and substation commissioning.
The company monetises primarily through hardware sales on a quote-based, multi-year enterprise contract model, supplemented by repair and calibration services and extended warranty programs that introduce a recurring revenue layer. Go-to-market is hybrid: UK direct sales supported by field sales directors and account managers, paired with an extensive authorised distributor and hire-house network spanning more than 30 countries across Europe, the Middle East, Asia Pacific, the Americas and Africa — several partnerships dating back decades (Macey's in Australia since 1978, ElectroTest in New Zealand since 1976, Comercial Gonçalves in Brazil since 1955). End customers include power utilities (Network Rail, Vattenfall, Singapore PowerGrid, ABB), electrical contractors and commissioning engineers, large industrial operators, and government and military buyers (Singapore Ministry of Defence, Port of Singapore Authority). The company is triple-certified to ISO 9001 (held since 1996), ISO 14001 and ISO 45001 under an integrated management system.
T&R Test Equipment firmographics
Firmographics- Name
- T&R Test Equipment
- Legal name
- T&R Test Equipment Ltd.
- Website
- https://trtest.com
- Company type
- Private
- Founded year
- 1980
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- T&R Test Equipment Ltd. is a UK-based, privately held manufacturer of heavy current and high voltage electrical test equipment — including primary and secondary current injection systems, digital micro-ohmmeters and HV AC/DC test sets — serving power utilities, electrical contractors, industrial operators, hire houses and government buyers across more than 30 countries via direct sales and authorised distributors.
- Ownership category
- akta.pro rank
T&R Test Equipment industry classification
Industry- Product category
- Electrical Test Equipment
- NAICS
- Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Electrical Equipment Manufacturing (3353), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (3345)
- SIC
- Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Electronic & Other Electrical Equipment (No Computer Equip) (3600)
- akta.pro primary industry
- Test & Measurement Equipment (Oscilloscopes, DAQ, signal analyzers, calibration benches) (IMAGAFAC)
- akta.pro secondary industries
- Testing, Commissioning & Energization Services (T&C) (IMAFAHAK), Non-Destructive Testing (NDT) & Diagnostics (IR/UV, PD, vibration, acoustic) (EUADAJAE)
Keywords
Where T&R Test Equipment is headquartered
LocationHeadquarters
- HQ city
- Guildford
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
T&R Test Equipment business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Test Equipment Sales: Sale of electrical test and measurement equipment including current injection test sets, high voltage instruments, digital micro-ohmmeters, and accessories. Products are sold directly and through authorized distributors globally.
- Repair and Calibration Services: Comprehensive repair and calibration services for test equipment to maintain accuracy and extend product lifecycle.
- Warranty Extension: Extended warranty programs offering additional coverage beyond standard warranty period.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Quote-based pricing for all products |
Go-to-market motion3 records
Distribution channels3 records
Marketing channels9 records
T&R Test Equipment product offering
Product offeringCore offering
T&R Test Equipment Ltd. manufactures and supplies electrical test and measurement instruments, including primary and secondary current injection test systems, high voltage AC and DC test systems, digital micro-ohmmeters, cable impedance test systems, and handheld testers. The company designs its products for protection relay testing, circuit breaker validation, current transformer verification, substation commissioning, insulation testing, and cable fault location, serving utilities, electrical contractors, and industrial operators worldwide.
Product overview
T&R Test Equipment Ltd. is a manufacturer of electrical testing and measurement equipment, offering a comprehensive portfolio of specialized test instruments organized into core product categories. The primary offerings include Secondary Current Injection Test Systems (such as 50ADM-P, 200ADM-P Mk2) for relay calibration and protection scheme validation, and Primary Current Injection Test Systems (including 750ADM Mk4 and CU-Ps Mk2) for end-to-end protection chain testing under real load conditions. Supporting these are Digital Micro-Ohmmeters (including DMO200) for low-resistance measurements, High Voltage AC and DC Test Systems for insulation and cable testing, High Voltage Instruments for measurement and safety verification, Cable Impedance Test Systems for cable commissioning, and Handheld Testers for portable field applications. Accessories including output leads and connection hardware complement the product range. The company serves both multinational corporations and smaller businesses across global markets through a distribution network, providing tailored solutions for commissioning, maintenance, protection testing, and safety verification in electrical infrastructure.
Differentiator
Problem solved
Functional benefit
Products and services
- Secondary Current Injection Test Systems Test systems for injecting secondary current into protection relays and control circuits for relay calibration, settings verification, and functional testing of protection schemes.
- Primary Current Injection Test Systems High-current test systems for end-to-end validation of protection chains, testing current transformers under real load conditions, circuit breaker operation, and overall system response to fault scenarios.
- Digital Micro-Ohmmeters Precision instruments for measuring low resistance values in electrical components, featuring true RMS metering and digital display capabilities.
- High Voltage AC Test Systems Test systems for AC voltage testing applications including insulation testing, cable testing, and high voltage equipment validation.
- High Voltage DC Test Systems DC test systems for high voltage testing including insulation resistance measurement and cable fault location applications.
- Cable Impedance Test Systems Test systems for measuring cable impedance characteristics and commissioning cable installations.
- Handheld Testers Portable testing instruments for field use in electrical testing applications.
- 50ADM-P Secondary Current Injection Test Set Portable relay test set for secondary injection testing with true RMS metering, single-cycle capture, and advanced timing systems for accurate relay calibration and settings verification.
- 200ADM-P Mk2 Secondary Current Injection Test Set Advanced secondary injection test set with main and aux channel offering phase shifting current and voltage, capable of testing most common relay types with compact metal case design.
- CU-Ps Mk2 Primary Current Injection Test System High-current primary injection system rated at 20kVA with 5-minute output capability, featuring 5000A and 6000A loading units, multi-function digital timing system, true RMS metering with 1 cycle capture, and USB data storage including waveform and THD data.
- 750ADM Mk4 Primary Current Injection Test Set High-power primary injection test set delivering fast data capture, flexible timing systems, and multiple output ranges for accurate end-to-end verification of protection systems and circuit breakers.
- DMO200 Digital Micro-Ohmmeter Digital micro-ohmmeter noted for being easy to use, lightweight, accurate, and reliable, suitable for hire and purchase applications.
- Repair and Calibration Services Comprehensive repair and calibration services for test equipment to maintain accuracy and extend product lifecycle, provided by the manufacturer and approved centres such as Cuthbertson Laird.
- Warranty Extension Extended warranty programs offering additional coverage beyond the standard warranty period for T&R Test Equipment products.
Quantifiable outcome
- DMO200 micro-ohmmeter has been available to hire for more than 9 years, proving popularity and reliability
- +1 more outcomes
Companies that use T&R Test Equipment
Customer profileNamed customers14 records
Segments4 records
Ideal customer profiles4 records
T&R Test Equipment technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
T&R Test Equipment partnerships and signals
Strategic signalPartnerships
44 partnerships are on record, tiered core, major, regional and strategic.
- Transformers & Rectifiers Ltd.coreSister company within T&R Group, supplying power transformers and related equipment. Together, T&R Test Equipment and Transformers & Rectifiers provide complementary solutions supporting electrical infrastructure throughout its lifecycle.
- High Voltage Instruments Ltd.coreSister company within T&R Group, manufacturing high voltage instruments. Part of the T&R Group with over 70 years of combined experience supplying top-quality equipment globally.
- Cuthbertson Laird GroupmajorUK authorized distributor and approved repair centre for T&R Test Equipment. One of the foremost electrical test instrument distributors in the UK with offices in Scotland, Northern Ireland, and England.
- AcutestmajorUK authorized distributor for T&R Test Equipment products.
- Pass Ltd.majorUK authorized distributor and workshop partner for T&R Test Equipment.
- Sunbelt RentalsmajorOne of Europe's top test equipment hire specialists since 1996. Hire houses T&R equipment including DMO200 micro-ohmmeter for over 9 years.
- Norwich Instrument Services Ltd.regionalUK authorized distributor specializing in high voltage and cable fault location, repair and calibration services.
- Test & Measurement Hire (ESS SafeForce)regionalUK hire house providing T&R Test Equipment for hire.
- TestNordic ABregionalAuthorized distributor for Sweden and Nordic region since 2012. Supplies test instruments to Nordic Power Industry including ABB, Vattenfall.
- VEETECH Instrumentation and ControlsregionalAuthorized distributor for UAE and Middle East region. ISO 9001:2008 certified company specializing in Marine, Oil & Gas, and Industrial sectors.
- West Asia Trading & Engineering Pte LtdregionalSingapore BOCA registered supply contractor for electrical and electronics test equipment. Supplies to Port of Singapore Authority, Ministry of Defence, Singapore Power, and Changi Airport.
- Techno SinFin Inc.regionalAuthorized distributor for USA. Market leader in high voltage technology with installed base of high voltage testing equipment over $50 million in US and Latin America.
- HC Control InstrumentsregionalAuthorized distributor for South Africa. Leading supplier of high voltage test equipment for testing substation apparatus and cables.
- China Scientific (HK) LimitedregionalAuthorized distributor for Hong Kong with over 35 years of experience partnering with clients and suppliers.
- Labmetrik Electrical SDN BHDregionalAuthorized distributor for Malaysia since 1998. Leading electrical wholesaler and dealer representing T&R and other reputable brands.
- PT Surya Prima EltrindoregionalAuthorized distributor for Indonesia since October 2002. Trusted distributor known for hard work, loyalty, and reliability.
- Macey's Electrical PTY LTDregionalAuthorized distributor for Australia since 1978. Leading provider of electrical test and measurement equipment focusing on transmission and distribution sector.
- Ocean WindsregionalAuthorized distributor for Spain. ISO 9001:2015 certified premier supplier of test instruments and electrical meters.
- dataTec Schweiz AG (Mesatec)regionalAuthorized distributor for Switzerland.
- ICS Schneider Messtechnik GmbHregionalAuthorized distributor for Germany. High-performance supplier and manufacturer with professional consulting, development, production, sales and service.
- Ofel Engineering Srl.regionalAuthorized distributor for Italy. ISO9001 certified company with almost half a century of experience in electrical appliances and instruments manufacturing since 1961.
- TECTRA A.S.regionalAuthorized distributor for Czech Republic since 1990. Provides measuring and calibration services.
- TomtronixregionalAuthorized distributor for Poland since 1990. Leading supplier of measuring equipment for energy and telecommunications.
- Power Source Instruments Inc.regionalAuthorized distributor for Canada. Leading distributor of custom high voltage instrumentation for electric utility industry.
- Eskeland Electronics ASregionalAuthorized distributor for Norway since 1993. Provides measuring instruments for locating, testing and troubleshooting.
- EYMA Power Elektrik Sanayi Tic. AŞregionalAuthorized distributor for Turkey. Leader in energy and electricity industry with nearly three decades of international experience.
- ENTRAG Engineering & Trading GroupregionalAuthorized distributor for Egypt. Leading supplier of industrial solutions with over 25 years in oil and gas, refining, petrochemicals, and power generation sectors.
- ElectroTest Ltd.regionalAuthorized distributor for New Zealand since 1976. Importer and distributor specializing in electrical and electronic test and measurement equipment.
- KJ Dynatech Inc.regionalAuthorized distributor for South Korea. Established as one of the leading companies in measurement industry serving power plants, refineries, and iron and steel factories.
- Measurements International LLPregionalAuthorized distributor for India. Indian arm of Measurements International, Canada providing electrical test and measuring equipment.
- Comercial Gonçalves Equipamentos de Medição LtdaregionalAuthorized distributor for Brazil since 1955. Pioneered importation of modern equipment serving energy testing and trading market.
- Aughton Hire & Calibration ServicesregionalUK hire house established over 40 years ago providing test equipment hire with calibration services.
- C & K Instrument (HK) LimitedregionalAuthorized distributor for Hong Kong. Member of C & K Group founded in 1974 with offices in Shenzhen, Beijing, Shanghai, and Wuhan.
- Barapole Engineering Services (BES) QatarregionalAuthorized distributor for Qatar. ISO 9001-2015 certified company providing sales and service in instrumentation, electrical, and mechanical calibration.
- Axioma MSregionalAuthorized distributor for Lithuania since 2002. Supply of measurement equipment and power sources for industrial enterprises.
- Conwen Trading Co. Ltd.regionalAuthorized distributor for Taiwan.
- Unitek Co. Ltd.regionalAuthorized distributor for Vietnam.
- N.TH. Karapittides Ltd.regionalAuthorized distributor for Cyprus.
- ARC Brasov SRLregionalAuthorized distributor for Romania since 1990. Lifelong learning organization with professional force serving clients and suppliers.
- Ai2N Engineering & ConsultancyregionalAuthorized distributor for Pakistan. Premier engineering solutions provider based in Karachi specializing in electrical testing and consultancy.
- Asras Co., Ltd.regionalAuthorized distributor for Thailand since 1994. Well-regarded distributor of high quality infrared and electric temperature meters.
- Micro Precision Ltd.regionalAuthorized distributor for UK with over 30 years of specialized expertise. Leading provider with dedicated technical sales engineers.
- PASS Ltd.strategicUK strategic partner for delivering free High Voltage Testing Workshops across the UK in 2026. Provides venue facilities for workshop sessions in Hamilton and Stevenage.
- Transformers & Rectifiers Ltd.strategicT&R Group sister company exhibiting together at Power Transmission & Distribution Technology Expo 2026 in Cologne, showcasing combined expertise of two British engineering manufacturers.
Scale indicators4 records
Recent moves4 records
Expansion highlights4 records
T&R Test Equipment competitors and assessment
Company assessmentDirect peers
- Megger Group: UK-based global manufacturer of electrical test equipment including current injection test sets, insulation testers, and micro-ohmmeters. Most directly comparable peer with overlapping product categories, similar target customers (utilities, contractors, rail), and competing distribution channels.
- OMICRON Electronics: Austria-based specialist in protection relay testing, current injection, and power system diagnostics. Closely comparable in protection testing and primary/secondary injection product categories, serving the same utility and commissioning engineer customer base.
- Doble Engineering Company: US-based provider of diagnostic testing equipment and services for the electric power industry. Comparable in HV testing, insulation diagnostics, and protection testing with focus on utility and industrial customers globally.
- Kikusui Electronics: Japan-based manufacturer of power test equipment including high voltage test systems and power supplies. Comparable in HV AC/DC test systems with similar applications in utility and industrial commissioning and testing.
- Chauvin Arnoux: France-based manufacturer of portable electrical measurement and test instruments. Comparable in handheld electrical testers and measurement products serving similar electrical contractor and industrial customer segments.
- Hioki E.E. Corporation: Japan-based manufacturer of electrical measurement instruments including clamp meters, insulation testers, and power quality analyzers. Comparable in electrical test and measurement with focus on field-use portable equipment.
- AEMC Instruments: US-based manufacturer of electrical test and measurement instruments including ground resistance testers, insulation testers, and power quality analyzers. Comparable niche player serving utilities, contractors, and industrial customers.
Broad incumbents
- Fluke Corporation: US-based global leader in test and measurement tools, including multimeters, insulation testers, and power quality instruments. Overlaps in handheld electrical testers and field measurement but with broader portfolio and significantly larger scale than T&R.
- Yokogawa Electric Corporation: Japan-based global supplier of industrial test, measurement, and control solutions including power analyzers and electrical instrumentation. Overlaps in precision electrical measurement and power system testing but operates as a broad industrial incumbent.
- Phoenix Contact: Germany-based manufacturer of industrial electrical connection, automation, and interface solutions with growing test and measurement offerings. Adjacent overlap in electrical infrastructure testing and protection markets, but broader industrial portfolio focus.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
T&R Test Equipment social profiles
Digital presenceT&R Test Equipment compliance and trust
Trust signalCompliance3 records
T&R Test Equipment financial estimates
Financial estimateRevenue estimate
Valuation estimate
T&R Test Equipment leadership team
Management profileNumber of profiles
Profiles8 records
T&R Test Equipment funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
T&R Test Equipment M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about T&R Test Equipment
What does T&R Test Equipment do?
T&R Test Equipment Ltd. manufactures and supplies electrical test and measurement instruments, including primary and secondary current injection test systems, high voltage AC and DC test systems, digital micro-ohmmeters, cable impedance test systems, and handheld testers. The company designs its products for protection relay testing, circuit breaker validation, current transformer verification, substation commissioning, insulation testing, and cable fault location, serving utilities, electrical contractors, and industrial operators worldwide.
Is T&R Test Equipment a public or private company?
T&R Test Equipment is a private company. It is classified as management employee owned and is currently operating.
When was T&R Test Equipment founded?
T&R Test Equipment was founded in 1980. It employs 11 to 50 people.
Where is T&R Test Equipment based?
T&R Test Equipment is headquartered in Guildford, United Kingdom, in the Europe region.
How does T&R Test Equipment make money?
Three revenue lines are on record. Test Equipment Sales are the primary driver. The others are repair and Calibration Services and warranty Extension.
Who are T&R Test Equipment's main competitors?
Direct peers on record are Megger Group, OMICRON Electronics, Doble Engineering Company, Kikusui Electronics, Chauvin Arnoux, Hioki E.E. Corporation and AEMC Instruments. Broad incumbents are Fluke Corporation, Yokogawa Electric Corporation and Phoenix Contact.
Does T&R Test Equipment have an API?
No public API is recorded for T&R Test Equipment.
What industry is T&R Test Equipment in?
T&R Test Equipment's product category is Electrical Test Equipment. Its primary akta.pro industry code is IMAGAFAC, Test & Measurement Equipment (Oscilloscopes, DAQ, signal analyzers, calibration benches), with a secondary code of IMAFAHAK, Testing, Commissioning & Energization Services (T&C). Its NAICS code is 334515 and its SIC code is 3825.