Martindale Electric
Martindale Electric, founded 1928 and headquartered in Watford, UK, manufactures 277 electrical safety test products — including safe isolation equipment, PAT and multifunction testers, and socket testers — sold through its own e-commerce site and a UK-wide wholesaler/distributor network, with international reach into Europe, North America, Australia and Asia, serving electricians, contractors, facilities managers and EV charger installers.
- Company typePrivate
- Founded1928
- HeadquartersWatford, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Martindale Electric does
Martindale Electric is a UK-based manufacturer of electrical safety test equipment, founded in 1928 and headquartered at Metrohm House in Watford, Hertfordshire. The company designs, manufactures, calibrates, repairs, and supports a portfolio of 277 products across eight categories: safe isolation equipment (voltage indicators, proving units, lockout/tagout devices), PAT testers, socket testers (including EVSE-specific models), multifunction and insulation installation testers, industrial meters (clamp meters, digital multimeters), environmental instruments, decade resistance/capacitance calibration boxes, and test leads/accessories. The firm holds original-inventor status on several category-defining products — the 1968 Ring Main Tester (Check Plug, over 2 million units produced), the 1996 Buzzit Check Plug, the 2002 EZ2500 non-trip loop tester, and the 2007 EZ150 advanced socket tester — and operates the proprietary ALIVE five-step safe isolation methodology and content programme.
The company sells primarily through its own e-commerce site (martindale-electric.co.uk) and a broad UK channel network covering major electrical wholesalers (CEF, Rexel, Edmundson, Electric Center, ERF, Medlock, BEW), online distributors (RS Components, tester.co.uk, test-meter.co.uk), and test equipment specialists (Instrotech, Alpha Electronics, Acutest, Cuthbertson-Laird). International reach extends via distributors to mainland Europe, the Republic of Ireland, Canada, Australia, the USA, and Asia. Revenue is generated from hardware unit sales (e.g., HPAT550 £426, HPAT650 £580), recurring services (in-house calibration with 3–5 day turnaround, fixed-cost repairs), and training courses (Introduction to PAT Testing £70, Basic Legionella Management £130, LOTO) delivered online via VideoTile Learning and at the Watford training facility.
Customer segments are concentrated on practising electricians, electrical contractors, maintenance teams, facilities managers, employers with PAT obligations, and — most recently — EV charger installers served by the BZ820-EV, ET6300, and ET6500 EV-capable products. The firm is privately held by Managing Director Steve Dunning (in role since 1997 acquisition), maintains ISO 9001 certification, and the MD represents GAMBICA on BSI committee PEL/78 — providing direct influence over standards such as BS EN61243-3. Sub-brands Metrohm (utilities/industrial test equipment) and Drummond (test lamps) are housed within the same Watford operation.
Martindale Electric firmographics
Firmographics- Name
- Martindale Electric
- Legal name
- Martindale Electric Co. Ltd.
- Website
- https://martindale-electric.co.uk
- Company type
- Private
- Founded year
- 1928
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Martindale Electric, founded 1928 and headquartered in Watford, UK, manufactures 277 electrical safety test products — including safe isolation equipment, PAT and multifunction testers, and socket testers — sold through its own e-commerce site and a UK-wide wholesaler/distributor network, with international reach into Europe, North America, Australia and Asia, serving electricians, contractors, facilities managers and EV charger installers.
- Ownership category
- akta.pro rank
Martindale Electric industry classification
Industry- Product category
- Electrical Test Equipment
- NAICS
- Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Electrical Equipment Manufacturing (3353), Electronic and Precision Equipment Repair and Maintenance (811210)
- SIC
- Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Electrical Industrial Apparatus (3620), Industrial Instruments For Measurement, Display, And Control (3823)
- akta.pro primary industry
- Commissioning, testing & energization services (HVT, relay testing, SAT) (EUADAKAE)
Keywords
Where Martindale Electric is headquartered
LocationHeadquarters
- HQ city
- Watford
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Martindale Electric business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Marketing or Sales
Revenue model
- Electrical Test Equipment Sales: Primary revenue stream from the manufacture and sale of electrical safety test equipment including voltage indicators, proving units, socket testers, multifunction testers, PAT testers, insulation testers, industrial meters, environmental instruments, and accessories. Products sold through direct e-commerce, distributors, and electrical wholesalers.
- Calibration Services: In-house calibration service for a wide range of electrical, environmental and mechanical test equipment. Most instruments calibrated in-house with typical turnaround of 3-5 days. Offered from the Watford facility.
- Repair Services: Fixed-cost repair pricing for test equipment performed by experienced engineers at the Watford repair centre. Collection and delivery arranged via DPD.
- Training Courses: Revenue from training courses including Introduction to PAT Testing (online, £70), Advanced PAT Training (one-day, IOSH approved), Basic Legionella Management (IOSH/IIRSM/CPD approved, £130), Lock Out Tag Out (LOTO), and Health and Safety courses. Delivered online via VideoTile Learning, face-to-face, or on-site.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| One time/ perpetual license | Pay-as-you-go | Introduction to PAT Testing (online course) – £70 |
| One time/ perpetual license | Pay-as-you-go | Basic Legionella Management training course – £130 |
| Unit Pricing | Pay-as-you-go | HPAT425 PAT Tester (entry-level handheld) – Price listed on website |
| Unit Pricing | Pay-as-you-go | HPAT550 Rechargeable PAT Tester – £426.00 |
| Unit Pricing | Pay-as-you-go | HPAT650 Advanced PAT Tester – £580.00 |
| One time/ perpetual license | Pay-as-you-go | Lock Out Tag Out (LOTO) training course – Price listed on website |
Go-to-market motion2 records
Distribution channels5 records
Marketing channels8 records
Martindale Electric product offering
Product offeringCore offering
Martindale Electric manufactures and sells electrical safety test equipment for trade and industry, including voltage indicators, proving units, PAT testers, socket testers, and multifunction installation testers. The company also provides in-house and on-site calibration, repair, and training services to support electricians, maintenance teams, and electrical contractors.
Product overview
Martindale Electric is a manufacturer of electrical test equipment and safety solutions, offering a comprehensive portfolio organized around eight core product categories: Safe Isolation (voltage indicators, proving units, lockout/tagout devices), PAT Solutions (handheld and portable PAT testers with accessories), Socket Testing (basic, advanced, industrial, and EVSE testers), Installation Testing (multifunction testers, insulation testers, fuse finders), Industrial Testing (clamp meters, digital multimeters, busbar connection tools), Environmental (sound, gas, light, humidity, temperature measurement instruments), Calibration (decade resistance and capacitance boxes), and Test Leads & Accessories. The company also incorporates Metrohm test equipment and Drummond Test Lamps brands. Services include calibration, repair, and training courses (PAT testing, Legionella management, LOTO). Key product lines include the VI series voltage indicators, HPAT/EPAT PAT testers, ET series multifunction testers, BZ/EZ socket testers, IN series insulation testers, CM/MM clamp meters and multimeters, and comprehensive lockout kits. Products are distributed through electrical wholesalers, online distributors, and test equipment specialists. The company is headquartered in Watford, UK, with over 95 years of experience in the electrical testing industry.
Differentiator
Problem solved
Functional benefit
Brands
- Metrohm: Test equipment brand for utilities and industrial customers during installation and maintenance of plant and equipment.
- Drummond
Products and services
- Voltage Indicators
- Proving Units
- Socket Testers
- PAT Testers (Portable Appliance Testers)
- Multifunction Installation Testers
- Insulation and Continuity Testers
- Clamp Meters and Multimeters
- Environmental Instruments
- Calibration Services
- Repair Services
- Training Services
Quantifiable outcome
- Products prevent the estimated 25% of reportable electrical accidents involving portable appliances (per HSE statistics cited by Martindale)
- +2 more outcomes
Companies that use Martindale Electric
Customer profileSegments5 records
Ideal customer profiles3 records
Martindale Electric technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature8 records
Martindale Electric partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered core, minor and major.
- Electrical Contractors Association (ECA)coreECA is the UK's foremost trade association for the electrotechnical and wider engineering services industry. Martindale Electric is a commercial associate and industry partner of the ECA, providing electrical safety test equipment and resources to ECA member contractors.
- Safe IsolatecoreSafe Isolate is a collective of companies working together to drive meaningful change in safe isolation awareness across the electrical industry. Martindale participates alongside key organisations and brands to promote electrical safety practices and reduce electricity-related injuries and fatalities.
- VideoTile Learning LtdminorVideoTile Learning Ltd owns and delivers Martindale's online training courses (PAT testing, Legionella management, LOTO, health and safety) under licence. Courses carry IOSH, CPD, IIRSM, Gatehouse Awards, IATP, Laser, ETA, IFE, and ILM accreditations.
- GAMBICAcoreGAMBICA is the Trade Association for Instrumentation, Control, Automation and Laboratory Technology in the UK. Martindale participates in GAMBICA activities and references their calibration and measurement category guides. The company's Managing Director Steve Dunning serves as a GAMBICA/industry representative on BSI committee PEL/78.
- RS ComponentsmajorRS Components is a major global distributor of electronic and industrial products. Martindale products are available through RS Components' UK online platform (rs-online.com) as one of several online distributor partners.
- CEFmajorCEF (City Electrical Factors) is one of the UK's largest electrical wholesalers with an extensive branch network. Martindale products are available through CEF's UK branches as a key wholesale distribution channel.
- RexelmajorRexel is a global electrical supplies distributor with a significant UK presence. Martindale products are available through Rexel's UK store finder network, serving electrical contractors.
Scale indicators6 records
Recent moves8 records
Expansion highlights6 records
Martindale Electric competitors and assessment
Company assessmentMarket position
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
Martindale Electric social profiles
Digital presenceMartindale Electric compliance and trust
Trust signalCompliance1 record
Martindale Electric financial estimates
Financial estimateRevenue estimate
Valuation estimate
Martindale Electric leadership team
Management profileNumber of profiles
Profiles1 record
Martindale Electric funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Martindale Electric 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 Martindale Electric
What does Martindale Electric do?
Martindale Electric manufactures and sells electrical safety test equipment for trade and industry, including voltage indicators, proving units, PAT testers, socket testers, and multifunction installation testers. The company also provides in-house and on-site calibration, repair, and training services to support electricians, maintenance teams, and electrical contractors.
Is Martindale Electric a public or private company?
Martindale Electric is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Martindale Electric founded?
Martindale Electric was founded in 1928. It employs 11 to 50 people.
Where is Martindale Electric based?
Martindale Electric is headquartered in Watford, United Kingdom, in the Europe region.
How does Martindale Electric make money?
Four revenue lines are on record. Electrical Test Equipment Sales are the primary driver. The others are calibration Services, repair Services and training Courses.
Does Martindale Electric have an API?
No public API is recorded for Martindale Electric.
What industry is Martindale Electric in?
Martindale Electric's product category is Electrical Test Equipment. Its primary akta.pro industry code is EUADAKAE, Commissioning, testing & energization services (HVT, relay testing, SAT). Its NAICS code is 334515 and its SIC code is 3825.