Adwel International
- Manufacturers of electrical test equipment products and electrical testing services for Preventive maintenance testing of windings, stator cores and electrical insulation of high voltage rotating machinery and T&D equipment.
- http://www.adwel.co.uk/

Circuit Detective
- Using advanced technology the Circuit Detective helps you map out your circuits. Simply plug the transmitter into the outlet and then scan your panel to identify the breaker.
- http://www.circuitdetective.com

Omicron Electronics
- An international company that develops and manufactures state of the art primary and secondary injection test equipment. Also offer training, consulting and services in this field.
- http://www.omicron.at

Mile High Test Services, Inc.
- Provider of electrical test services to the bareboard printed circuit industry including PCB film/artwork scanning to produce CAD Gerber files.
- http://www.mhtest.com

Lemke Diagnostics
- Manufacturer of partial discharge and dissipation factor (Tan Delta) measurement systems, cable test systems and PD monitoring systems especially for transformers, generators and cables.
- http://www.ldic.ch

Shanghai Glentest Electronics Co., Ltd.
- Manufacturer and exporter of electrical and electronic test instruments and other testers such infrared thermometer, tachometer, etc.
- http://www.glentestco.com

Zensol
- Manufacturer of electrical test equipment analyzers for circuit breaker applications.
- http://www.zensol.com

Extech Electronics Co,. Ltd.
- A manufacturer of safety testers, AC power sources, automatic testing systems and battery chargers. Offices in countries such as Taiwan, China, Japan, Malaysia and with distribution channels throughout the world.
- http://www.extech.com.tw

Scope T&M Pvt Ltd
- Firm with bases in India and Illinois which specialises in designing portable field testing instruments for equipment used in generation and distribution.
- http://www.scopetnm.com

Adas Electronique
- An European company which designs, develops and manufactures acquisition products with breakthrough analog and digital technology, for real-time systems.
- http://www.adas.fr

Elite Test Equipment Ltd
- Supplier of electrical test equipment and PAT testing equipment.
- http://www.elitetestequipment.co.uk

HazariElectric.com
- Manufacturers & exporters of electric line testers
- http://www.hazarielectric.com/index.html

Calvada Technologies
- Manufacturer of electrical test sets.
- http://www.cttestset.com/

Avtron Loadbanks
- A line of loadbanks for testing power sources such as generators, uninterruptible power supplies, turbines, or batteries.
- http://www.load-bank.co.uk

Banair Electronic Engineers
- Design and make test equipment in Southampton, UK. The site describes systems for testing cables, harnesses, connections, membrane switches and logging turbine trip speeds.
- http://www.banair.co.uk

Crakker
- Instrument for troubleshooting control systems. Locates intermittents, first-outs and timing problems in PLC and relay logic control systems.
- http://www.crakker.com

Parrot Invent
- Inventors of the Parrot Clip, makers of test clip, test probe, test leads, for electronic electrical instrument measurement with multimeters, DMM, oscilloscopes, spectrum analyzers.
- http://www.parrot-invent.com

Sephco Load Banks
- Load banks for testing diesel generator capacity and automatically providing minimum engine loading for optimum efficiency and life.
- http://www.sephco.com

Chroma Systems Solutions Inc.
- Manufacturer of power supply testing equipment which includes automated power supply test systems, electronic loads, programmable AC power supplies and related equipment.
- http://www.chromausa.com/

Ajit Electronics
- Indian manufacturer of oil test sets, test sets, high voltage tester, ratio meter, phase shifter, and related products.
- http://www.ajitelectronics.com

Oscilloscope Depot
- All types of new and used oscilloscopes.
- http://www.oscilloscopedepot.com

Gopal Electronics
- A manufacturer of epstein tester, single sheet tester, voltmeter, wattmeter, ammeter, frequency meter, pf meter and holiday detector.
- http://www.gopalepstein.com

Tabor Electronics
- Produces test and measurement equipment and private-labels numerous products.
- http://www.taborelec.com/

Enerdis
- This division of Chauvin Arnoux offers systems and fixed equipment for measurement, control, metering, management and monitoring of MV/LV electrical networks switchboards and industrial machines.
- http://www.enerdis.com

Electric Energy Control Solutions
- Provider of power monitors, electrical transducers, power quality recorders/analyzers, process indicators, signal conditioners and voltage dip proofing inverters for sags and momentary interruptions.
- http://www.measurlogic.com

Associated Research, Inc.
- Manufacturer of hipot testers, high voltage dielectric withstand analyzers, ground bond, line leakage and insulation resistance testers.
- http://www.asresearch.com/

ShenZhen KeHuiJie Electronic Scale Co., Ltd.
- An enterprise integrated in scientific research, products manufacture and marketing.
- http://www.szkhj.com

T and R Test Equipment
- Heavy current and high voltage electrical test equipment, relay test equipment, primary current injection systems, micro-ohmmeters, DC cable test sets and AC flash testers.
- http://www.trtest.com/

Metrotest
- Electrical safety testing, technical training and electrical test instruments.
- http://www.metrotest.co.nz/

Macrodyne, Inc.
- Power line phasor measurement, recording, satellite timing and accessories, data acquisition and recording instruments used within the electric power industry.
- http://www.macrodyneusa.com/

Power Monitors Incorporated
- Manufacturer of fixed and portable power quality recorders for 1,2, or 3 phase services. Products include meter-base recorders, receptacle recorders, power and harmonic analyzers among others. A power monitor for any application.
- http://www.powermonitors.com

AEMC Instruments/Chauvin Arnoux
- Manufacturer of various types of electrical test equipment. Products include insulation testers, earth/ground testers, megohm meters, and current probes.
- http://www.aemc.com/

SES2i
- Medium and high voltage testing instrumentation and diagnostics. Partial discharges detectors and monitoring systems and diagnostics for high and medium voltage systems.
- http://www.ses2i.com/

ISA
- Manufacturer of automatic and manual test sets for electrical power distribution systems.
- http://www.isatest.com/

Metravi
- Design and sell electrical testing devices, multimeters, AC/DC clamp meters, and oscilloscopes.
- http://www.metravi.com/

Ideal Industries
- Manufacturers and distributors of a electrical testers and meters for electrical contractors and the wiring installation industry.
- http://www.testersandmeters.com/

William H. Swain Co.
- Field-portable non-contact ammeters for corrosion protection, fault location, and quality assurance.
- http://www.swainmeter.com/

Hioki USA Corporation
- Manufacture of data acquisition, power meters, power quality analyzer (PQA), LCR meters, battery measurement, multi meters and field measuring instruments.
- http://www.hiokiusa.com/

A.Z. Elettronica srl
- Equipment for life, electrical and functional tests.
- http://www.az-elettronica.com/

Digimeter Electronics Co., Ltd.
- Manufacturer and exporter of digital multimeters
- http://www.digimeter.com/

HT Italia
- Manufacturer of power appliance testers, power network analysers, digital multimeters (DMMs) and current clamps.
- http://www.htitalia.it/

T.C.W Instruments
- Products include digital multimeter, clamp meter, cable tester.
- http://tcw.cn99.com/

Summit Technology
- Handheld PowerSight, measures and datalogs all important parameters of electrical power.
- http://www.summittechnology.com/

SupaRule
- Designers, manufacturers and distributors of unique measurement instruments to the electrical industry. Products include multimeters, cable height meters and remote current measurement devices.
- http://www.suparule.com/

Sigma Instruments
- Distributor of digital milliohm meter, million megohm meter, power supply, capacitance meter, multimeter digits, high voltage break down tester.
- http://www.sigmainstruments.com/

Standard Electric Works co., Ltd.
- Manufacture of insulation tester, earth resistance tester, earth leakage tester, loop impedance/PSC tester, ELCB tester, clamp meter, multitester, phase sequence indicator, panel meter, audio impedance tester.
- http://www.sew.com.tw/

PowerTronics
- Manufacturing tools to help identify and solve power quality related problems, power line monitors and data loggers.
- http://www.powertronics.com/

Ohm Loads Inc.
- Manufacturer of custom passive loads. These load banks are used for testing power supplies.
- http://www.ohmloads.com/

NH Research
- Designs and manufactures power-electronics test systems and test instruments for the functional testing of dc power supplies, UPSs and related power conversion products.
- http://www.nhresearch.com/

National Meter Industries
- Manufacturer and marketer of energy measuring and management devices encompassing both hardware and software components.
- http://www.national-meter.com/

Manta Test Systems Inc.
- Advanced electronic test products and services for electrical power system protection, control and measurement. Manufacturer of protective relay test equipment, power meters and transducer calibrators.
- http://www.mantatest.com/

FineTest
- Manufacturer of automatic power supply testers.
- http://www.finetest.com/

Executive Engineering
- Manufacturer of electronic loads and power supply, and load monitoring test equipment.
- http://www.exec-eng.com/

ET System Electronic
- Provides high technology devices for test and measurement, high voltage power supply, safety test systems and DC-AC inverters.
- http://www.etsgmbh.de/

Elymer
- Manufacturer of domestic single phase and three phase electromechanical and static energy meters.
- http://www.elymer.com/

Electronics Product Design, Inc.
- Designer and manufacturer of voltage meters and watt-hour meters and a variety of AC and DC electrical power measuring instruments.
- http://www.epd.com/

EIC Meters
- Manufacturers of electrical AC/DC, Watt, DC Shunts, PF, portable, digital, power, frequency, KVAR, KVA and custom made meters.
- http://www.eicmeters.com/

Compliance West USA, Inc.
- Manufacturers of hipot (dielectric withstand) testers, high current ground continuity testers and large format LED displays.
- http://www.compwest.com/

Brand Electronics LLC
- Manufacture digital power meters and develop, prototype and produce embedded microprocessor electronics.
- http://www.brandelectronics.com/

Rishabh Instruments Pvt.Ltd.
- Manufacturer of measuring instruments, panel meters, digital multimeters, shunts and electrical transducers.
- http://www.rishabh-instruments.com/

Avtron
- A line of load banks for load testing generators and power supplies, in a variety of voltages and frequencies.
- http://www.load-bank.com/

Megger
- Formally AVO-Manufactures, markets and supports products under the Multi-Amp, Biddle,and Megger brand names.
- http://www.avointl.com/

Amprobe
- Test equipment manufacturer for professionals in the electrical, HVAC, construction and maintenance markets, primarily hand held devices.
- http://www.amprobe.com/

Avatar Engineering Corporation
- Electronic loads for burn-in systems, Telco Rectifiers and all DC power supplies.
- http://avatarengineer.com/