Megger designs and manufactures portable electrical test equipment. Megger products help you install, improve efficiency, reduce cost and extend the life of your or your customers’ electrical assets.

Established in the late 1800s, the company has been designing and making test and measurement instruments that perform electrical measurements for preventative maintenance, troubleshooting and commissioning for decades. Megger products have supported customers all over the world to improve their facilities’ efficiency, reduce costs, extend the life of apparatus and through trending and analysis, anticipate equipment failure and future performance. It now has local offices in many locations with technical support teams and distributors all over the world. Manufacturing plants are located in Germany, Sweden, the UK, and USA.

Working with customers

Megger believes that by working closely with customers it can deliver the best customer solutions and after-sales service today, and in the future. Megger is committed to anticipating client needs by listening to customers and industry specialists while continually investing in innovative research and development, design engineering and manufacturing techniques.

Megger brand

Our strategy is to produce all our products with a single brand name, Megger. The advantages to you are that you know the products and software will work well together, and all the products have a similar yet distinctive ‘look and feel’ with their dark and light grey casings. We don’t waste colour on trying to make our test instruments pretty – we reserve it for useful functions such as range selectors and displays. Our design engineers come from many different nations, and they regularly exchange ideas and tips with colleagues from other countries. That means you get the latest innovations, one of the reasons that Megger products are so advanced. As more companies join the Megger family, you may find some test equipment sold by us that have not yet transitioned to the Megger identity system. Don’t worry – our top priority is ensuring that product quality is right. We’ll get round to making sure the colours are the same later.

How the greatest brands in test and measurement came together

Our systems are geared to keeping things local – localised engineering, localised marketing, localised decision-making. Our employees are proud of the companies and brands that go to make our company history and many of these names are still trademarks or registered trademarks of the company in many countries.


Named as an acronym for Amps, Volts and Ohms, AVO is best known for its iconic AVOmeter multimeter. AVO merged with Megger in the 1960s when both firms relocated from London to the Dover, England manufacturing site. AVO lives on as our training business, operating from Megger sites around the world.


James Biddle was an importer of Megger insulation testers and later started manufacturing high voltage test instruments. Based in the beautiful National Park of Valley Forge, Pennsylvania, the high voltage tradition continues as Megger’s lead site for cable fault location equipment and transformer test equipment.


Manufacturing insulation testers is where Megger started, and the Megger brand name is so well known today that some maintenance professionals incorrectly use it as a verb when they refer to doing an insulation test. The Dover, England site manufactures hand-held test equipment as well as larger insulation testers, oil test equipment and low resistance ohmmeters.


Based in Dallas, Texas, the former Multi-Amp facility concentrates on relay test and circuit breaker test equipment for the world’s power industries. Started in the 1960s, Multi-Amp later merged with Biddle and then Megger to form the nucleus of today’s company.


Seeing an opportunity to create a transformer test business based around sweep frequency response analysis, engineers at Programma left to create a new business called Pax Diagnostics. Megger saw an opportunity to share the Pax innovations with more customers through Megger’s distribution network, acquired the company in 2008 and rebranded the products to Megger. Research and engineering for the product range continues at Danderyd, Sweden.


There was a demand for software to provide data management for acceptance and maintenance testing jobs, which was filled by PowerDB. Located at College Station, Texas – famous for its engineering school – software engineers created a database tool specifically for customers with asset management problems. Since its acquisition by Megger, it operates as a software division and continues to develop and support PowerDB. Click here for more information.


Proudly Swedish, Programma Electric AB was founded in 1976 and quickly became a world renowned supplier of test equipment and high voltage circuit breakers stationery batteries as well as portable high current applications. Headquartered in Danderyd, Sweden, the company was acquired by Megger in 2005. The business has grown in revenues and staff since that time.


With its two advanced engineering and manufacturing sites in Germany (Baunach and Radeburg), SebaKMT was originally established over 60 years ago, and is the most recent member of Megger. It is the world’s leading developer and manufacturer of measurement equipment for diagnosing the condition of networks and locating faults. Market sectors include power supply networks as well as communication and pipe networks. Electrical test equipment will gradually be rebranded to Megger over the next few years, but you can continue to expect the same reliable and innovative products, whatever it is called.


Since 1911, test technicians and engineers have depended on States terminal blocks and test switches to provide easy access to wiring on panel boards and switchboards, eliminate wiring reconnection errors and saving operator time. The States business is co-located at our Dallas site. Click here for more information

Other legacy brands™

Legacy brands incorporated into Megger over the years also include Accutrace, Ducter, FaultBuster, Foster, HDW, RES, Sullivan.

Baker Instruments®

Baker Instruments is located at Fort Collins, 1 hour north of Denver USA.  The company, founded in 1950’s, pioneered the testing of electrical motors and generators.  Today it supports customers with a comprehensive range of diagnostics tests for online (dynamic) and off-line (static) rotating machinery.  Megger acquired the Baker Instruments business from SKF in Aug 2018.