What Megger does

Megger Group Limited is a UK-headquartered (Dover, Kent) global provider of electrical test, measurement, and asset performance management solutions, founded in 1889 and serving utilities, electricians, OEMs, power grid operators, renewables developers, transportation operators, data centres, and water utilities across 15+ countries. Its product portfolio spans portable and fixed electrical test instruments (insulation testers, circuit breaker analyzers, cable fault locators, low resistance ohmmeters, primary injection testers, transformer test systems, battery testers, and multifunction installation testers), online asset monitoring solutions for grid, transformer, rotating machine, cable, and gas-insulated switchgear assets, and software products including CertSuite certification tools and IPS Group's asset performance management platform. Core proprietary technologies include DualGround safety testing, PI Predictor, Re>Act filtering, time domain reflectometry, VLF withstand testing, and real-time DGA plus partial discharge diagnostics. The business generates revenue primarily through one-time/perpetual hardware sales via direct enterprise field sales and a global authorized distributor network, supplemented by subscription/recurring software revenue from asset performance management and professional services revenue from technical training (AVO Training) and support. In April 2026, ESCO Technologies Inc. agreed to acquire Megger from Swiss investment group TBG AG for $2.35 billion (approximately 14x projected 2026 EBITDA), with the combined Megger and Doble Engineering entity under ESCO projected to generate $590M in 2026 revenue and $60M of cost synergies within three years.

Name

Megger

Legal name

Megger Group Limited

Website

https://megger.com

Company type

Private

Founded year

1889

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Megger is a UK-founded (1889) global provider of electrical test, measurement, and asset performance management instruments and software, serving utilities, industrial operators, electricians, and OEMs with portable testers, online monitoring, and predictive analytics.

Ownership category

akta.pro rank

Product category

Electrical Test and Measurement Equipment

NAICS

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451)

SIC

Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Commissioning, testing & energization services (HVT, relay testing, SAT) (EUADAKAE)

akta.pro secondary industries

Overhead Line Condition Assessment (conductors, towers/poles, insulators, fittings) (EUADAJAG), Power Quality, Line Monitoring & Grid Edge Sensors (PMUs/µPMUs) (EUADAPAO), Power Quality, Metering & Monitoring (HDACAJAG)

Keywords

• Electrical test equipment
• Cable fault location
• Insulation resistance testing
• Transformer testing systems
• Electrical asset monitoring

Headquarters

HQ city

Kent

HQ country

United Kingdom

HQ region

Europe

Offices1 record

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. Electrical Test Instruments: Sale of portable and fixed electrical testing equipment including insulation testers, circuit breaker analyzers, cable fault locators, low resistance ohmmeters, and earth resistance testers
2. Asset Monitoring Solutions: Continuous online monitoring systems for grid, transformer, rotating machine, cable and switchgear assets with real-time diagnostics and predictive maintenance capabilities
3. Asset Performance Management Software: Software solutions for asset performance management acquired through IPS Group majority stake, enabling data analytics and predictive maintenance for electrical utilities
4. Technical Support and Training: Customer support, technical training, and application guidance services

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Megger manufactures and sells electrical test and measurement instruments used to assess the safety, performance, and reliability of power systems and electrical infrastructure, including insulation testers, cable fault locators, circuit breaker analyzers, low resistance ohmmeters, transformer testing systems, and battery testers. The company also provides continuous online asset monitoring solutions (grid, transformer, rotating machine, cable, and switchgear monitoring) and asset performance management software for predictive maintenance and data-driven insights across utilities and industrial sectors.

Product overview

Megger is a global provider of electrical test, measurement, and asset performance management solutions organized into three integrated portfolio segments: Electrical Test Instruments (including cable fault locators, insulation testers, circuit breaker analyzers, motor testers, low resistance ohmmeters, EV charge point testers, and battery testing systems), Asset Monitoring Solutions (covering grid, transformer, rotating machine, cable, and GIS/GIL monitoring), and Data Driven Insights. Key products include ICMneo portable PD diagnostics, MFT-X1 multifunction tester, MIT/S1-series insulation testers, Centrix Evolution and STX40 cable fault locators, VLF Sine series cable test systems, EGIL200/TM1800 circuit breaker analyzers, SPI500/SPI4000 primary injection testers, DLRO100/MOM micro-ohmmeters, TRAX transformer test system, BITE5/TORKEL900 battery testers, and CertSuite Asset/Installation software. Megger operates across Utilities, Electricians, OEM/Industrial, Power Grid Operators, Renewables, Transportation, Water Utilities, and Data Centres sectors. The company's sub-brands include AVO Training, AVO Diagnostic Services, SebaKMT, Sentrisense, and States.

Differentiator

Problem solved

Functional benefit

Products and services

• ICMneo Portable Partial Discharge Diagnostics Modern, powerful, portable partial discharge (PD) diagnostics device for assessing insulation integrity in electrical assets such as cables, transformers, switchgear, and rotating machines.
• MFT-X1 Multifunction Tester Multifunction tester for efficient and reliable testing of low voltage installations, including insulation resistance, continuity, loop impedance, and RCD operation. Targeted at professional electricians and electrical contractors.
• MIT5252 / MIT10252 / MIT15252 Advanced Insulation Resistance Testers Advanced 5 kV, 10 kV and 15 kV insulation resistance testers with DD, SV, ramp voltage, and PDC test modes for demanding environments.
• S1-568 / S1-1068 / S1-1568 Expert Insulation Resistance Testers Expert 5 kV, 10 kV and 15 kV insulation resistance testers with 6 mA burn mode, advanced filtering (Re>Act), and USB/Bluetooth connectivity for high-voltage diagnostics.
• ADX Motor Tester Motor tester featured on the Megger homepage for electric motor testing applications in industrial and OEM environments.
• MCT105 Cable Tracer Cable tracer designed to support electrical contractors with efficient and precise cable identification and tracing in field installations.
• STX40 Cable Fault Locator Portable standalone cable fault location unit for quickly identifying faults in power cables caused by damage, installation issues, or deterioration.
• Centrix Evolution Cable Fault Location System Flagship system for state-of-the-art cable fault location, testing, and diagnostics for medium-voltage and high-voltage power cables.
• EZ-Thump 12 kV Cable Fault Location System Portable cable fault location system designed for medium-voltage (MV) networks.
• VLF Sine 37 kV Cable Test and Diagnostics System High-power very low frequency (VLF) test and diagnostic system for medium voltage cables, supporting withstand testing and partial discharge diagnostics.
• VLF Sine 62 kV Cable Test and Diagnostics System Very low frequency test and diagnostics system supporting higher insulation levels or testing multiple phases at once in medium voltage cables.
• R30 Test Van System Megger's most powerful cable fault location vehicle, providing on-site fault detection, testing, and diagnostic capabilities in a vehicle-installed system for utility field crews.
• PRIMEON Cable Fault Location and Test System Centrally controlled and automated cable fault location and cable testing system, available in various vehicle configurations for utility field operations.
• EGIL200 Circuit Breaker Analyser Circuit breaker time and travel analyser with DualGround testing for assessing breaker condition and performance in medium- and high-voltage equipment.
• TM1800 Circuit Breaker Analyser Circuit breaker time and travel analyser with DualGround testing capability for high-voltage breaker diagnostics in substations.
• VIDAR Vacuum Interrupter Tester Vacuum circuit breaker tester used to ensure the ability of vacuum circuit breakers to break fault current.
• SPI500 Smart Primary Injection Test System Enabling accurate and repetitive tests of high-current breaking devices through adaptive current injection, used for protective relays and circuit breakers.
• SPI4000 Smart Primary Injection Test System Primary injection test set for protective relay equipment and circuit breakers with advanced smart capabilities.
• DLRO100 Series Digital Low Resistance Micro-Ohmmeters High current low resistance testing instruments for verifying bond integrity and detecting poor electrical connections in substations, switchgear, and busbar joints.
• MOM2 / MOM3 Handheld Micro-Ohmmeters Handheld 200A and 300A micro-ohmmeters for field-based contact resistance testing of breakers, busbars, and welded joints.
• TRAX Multifunction Transformer and Substation Test System Portable and compact system packed with features that maximise asset condition awareness for transformer and substation testing in the field.
• BITE5 Battery Tester Series Impedance/ohmic tester for lead-acid, NiCD, and lithium-ion batteries, used to verify capacity and ensure backup power readiness in substations, data centres, and critical facilities.
• TORKEL900 Series Battery Discharge Test Systems Battery discharge test systems for comprehensive battery capacity testing of installed battery banks through load discharge testing.
• CertSuite Asset Electrical asset testing and reporting software providing structured data capture, automatic asset records, and cloud-based reporting for utility asset inspection and maintenance workflows.
• CertSuite Installation Electrical testing certification software for generating professional installation certificates and compliance documentation supporting electrician and contractor workflows.
• Grid Monitoring Solutions Real-time fault detection, prevention, and analysis solutions that boost grid visibility, reliability, and safety for electrical utilities.
• Transformer Monitoring Solutions Real-time DGA and precision PD testing for early fault detection, insulation health assessment, and continuous transformer diagnostics using online monitoring sensors.
• Rotating Machine Monitoring Online monitoring providing early-fault detection through advanced PD testing and strategic vibration monitoring for protecting critical rotating machinery in industrial facilities.
• Cable Monitoring Solutions Advanced PD testing and continuous monitoring for real-time cable performance visibility and outage prevention across MV and HV cable networks.
• Gas Insulated Switchgear (GIS, GIL) Monitoring Online partial discharge monitoring for ensuring insulation integrity and early issue detection in gas-insulated switchgear and transmission line networks.
• Megger Industrial Reliability (IIoT Condition Monitoring Services) IIoT-based condition monitoring services and predictive maintenance solutions bridging the skills gap for industrial asset management, formerly operated under the Diagsol brand.

Quantifiable outcome

• Predictive maintenance solutions to reduce unplanned outages and extend asset life
• +2 more outcomes

Named customers2 records

Segments8 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature8 records

Partnerships

Three partnerships are on record, tiered core and strategic.

• Doble EngineeringcoreStrategic or Co-development Partner · 16 April 2026Under ESCO Technologies, Doble Engineering and Megger announced a strategic merger combining their portfolios of offline test equipment, online monitoring, and engineering analytics into a unified electrical asset management platform. The merged entity aims to deliver end-to-end asset lifecycle visibility and predictive, condition-based maintenance solutions globally.
• SentrisensestrategicTechnology or Integration · 11 June 2025Strategic partnership to integrate Sentrisense's autonomous overhead line monitoring technology with Megger's distribution network monitoring capabilities. The collaboration aims to deliver comprehensive grid-edge performance monitoring for utilities, including dynamic line rating and asset health applications. Joint commercial and technical initiatives planned across selected markets through 2025.
• IPS GroupcoreStrategic or Co-development Partner · 26 September 2024Megger acquired a majority stake in IPS Group to expand into data analytics and asset performance management for electrical utilities. The acquisition enables deeper integration combining Megger's measurement expertise with IPS's software capabilities to develop predictive analytics and AI platforms for the energy sector.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Fluke Corporation: Fluke is a direct competitor in portable electrical test instruments (multimeters, insulation testers, earth ground testers, power quality analyzers) serving electricians, industrial maintenance, and utility field technicians. Both companies compete for the same electrician and contractor channel, with overlapping product lines in installation testing and thermal imaging.
• Hioki E.E. Corporation: Hioki is a Japanese manufacturer of electrical measurement instruments competing directly in insulation testers, low resistance ohmmeters, power quality analyzers, and battery testers. Both companies serve utility, industrial, and electrical contractor markets with overlapping portable instrument lines.
• Doble Engineering: Doble Engineering is the closest direct peer to Megger, specializing in substation testing, online condition monitoring, and engineering analytics for electrical utilities. Doble is currently merging with Megger under ESCO Technologies, but historically the two competed head-to-head across the same utility customer base with overlapping portfolios in transformer testing, protection testing, and asset diagnostics.
• Omicron Electronics: Omicron is a direct peer focused on testing and diagnostics solutions for power systems, particularly protection relay testing, transformer testing, and IEC 61850-based communication testing. They compete directly with Megger's relay protection testing, transformer testing, and substation commissioning portfolios.

Broad incumbents

• Schneider Electric: Schneider Electric is a broad incumbent in electrical distribution, industrial automation, and energy management, offering power quality monitoring, substation equipment, and asset management software that overlaps with Megger's offerings. While not specialized in portable test instruments, Schneider competes via bundled solutions and EcoStruxure asset management software.
• Siemens Energy: Siemens Energy is a broad incumbent in power generation, transmission, and grid technology with Sensformer transformers and grid software that overlap with Megger's transformer testing and grid monitoring portfolios. They compete via integrated substation solutions and digital twin analytics rather than standalone instruments.
• Eaton: Eaton is a broad incumbent in electrical power management with significant overlap in switchgear, power quality, and UPS systems. Eaton competes with Megger in power quality monitoring (e.g., power meters), data center backup power testing, and increasingly in asset monitoring via Brightlayer digital solutions.
• ABB: ABB is a broad incumbent in electrification, motion, and process automation with substantial overlap in transformer monitoring, switchgear, substation automation, and grid asset management. ABB competes with Megger through its Ability asset health solutions and installed base of utility-grade equipment that increasingly embeds monitoring and diagnostics.
• Yokogawa Electric: Yokogawa is a broad incumbent in industrial process measurement, control, and electrical power monitoring, competing with Megger in power quality analyzers, portable calibrators, and plant-wide asset monitoring. Their Sushi sensor and Condition Monitoring solutions overlap with Megger's IIoT and predictive maintenance direction.
• GE Vernova: GE Vernova is a broad incumbent in power generation, transmission, and grid solutions, with a GridOS software portfolio and condition monitoring capabilities overlapping Megger's asset performance management direction. They compete in utility-scale monitoring and analytics, though typically at the system-of-systems level rather than field-portable instrumentation.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@MeggerWorld
• Facebookfacebook.com/meggerworld
• LinkedInlinkedin.com/company/megger
• Instagraminstagram.com/meggerworld
• Xx.com/meggeruk

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A2 records

Investments1 record

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Megger