What EA Technology does

EA Technology is a UK-based power engineering specialist that develops diagnostic instruments, monitoring systems, and software for electrical asset management in energy networks. Founded in 1966 and headquartered in Chester, the company originated from the Electricity Council Research Centre and pioneered the Transient Earth Voltage (TEV) detection method that became foundational to electrical asset maintenance. Its core product portfolio includes the UltraTEV range of handheld partial discharge (PD) detection instruments (UltraTEV Plus² and UltraTEV Detector²), the Astute HV Monitoring continuous monitoring service for high-voltage switchgear and cables, and the VisNet suite of low-voltage grid-edge intelligence solutions (VisNet Hub, VisNet View, VisNet Connect). The company also provides oil diagnostics services with Health Index assessments, the EA Technology Invest (AIM) asset investment planning software, OLIMS client portal, and specialized training and consulting services.

The company serves Distribution Network Operators (DNOs) and industrial energy customers globally, with named enterprise customers including Northern Powergrid, Scottish & Southern Electricity Networks, HEP ODS (Croatia), Powerlink (Australia), and SULB (Bahrain). It operates five direct regional offices in the UK, Australia, the Americas, Singapore, and China, supported by a network of 30+ distributors across Africa, Australasia, Europe, the Middle East, South Asia, and North America. Revenue is generated through a diversified mix of one-time instrument sales, professional services and consulting, recurring monitoring subscriptions (Astute HV Monitoring installed and commissioned with monthly fees), and software solutions.

In October 2024, Summa Equity made a strategic investment, transitioning the company from 50+ years of employee ownership to PE-backed status to accelerate global expansion and innovation in decarbonized energy infrastructure. The company experienced significant revenue growth in 2023, has received industry recognition including the King's Awards for Enterprise 2024 in Innovation for VisNet Hub, and in January 2026 made its first acquisition (Fundamentals Ltd) as part of a broader programme to consolidate grid-edge technologies globally.

Name

EA Technology

Legal name

EA Technology Limited

Website

https://eatechnology.com

Company type

Private

Founded year

1966

Operating status

Operating

Headcount range

251–500 employees

Short description

EA Technology is a UK-based power engineering specialist that develops partial discharge detection instruments, continuous HV/LV monitoring systems, and asset management software for electricity Distribution Network Operators and industrial energy customers globally.

Ownership category

akta.pro rank

Product category

Electrical Asset Management Solutions

NAICS

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451), Custom Computer Programming Services (541511), Other Computer Related Services (541519)

SIC

Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Industrial Instruments For Measurement, Display, And Control (3823), Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Overhead Transmission Line EPC (HV/EHV) (EUAEABAA)

Keywords

• Partial discharge detection
• Electrical asset management
• Smart grid solutions
• Low voltage monitoring
• Power engineering services

Headquarters

HQ city

Chester

HQ country

United Kingdom

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Products - Diagnostic Instruments: Sale of partial discharge detection instruments (UltraTEV Plus², UltraTEV Detector²), monitoring systems (Astute HV Monitoring), and LV monitoring solutions (VisNet Hub). Hardware and software product sales to DNOs and industrial customers.
2. Services - Technical & Consulting: Technical services including condition assessment, partial discharge surveys, oil diagnostics, thermographic surveys, power system analysis, and expert consultancy for asset management and network modernization.
3. Training: Power engineering training programs, courses, and professional development for energy sector professionals. Includes classroom, e-learning, and apprenticeship programs.
4. Software Solutions: EA Technology Invest (investment modeling software), VisNet Connect (connection tool for network operators), and OLIMS (oil diagnostics client portal).
5. Continuous Monitoring Services: 24/7 partial discharge monitoring services where equipment is installed and commissioned free of charge with monthly fees for ongoing monitoring and expert analysis.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

EA Technology designs, manufactures and sells diagnostic instruments, continuous monitoring systems, software platforms, and technical consultancy for electrical asset management across power networks. Its core offerings include the UltraTEV handheld partial discharge detectors, Astute HV continuous monitoring service, VisNet low-voltage grid-edge intelligence suite, oil diagnostics services, and EA Technology Invest asset investment modelling software — sold primarily to Distribution Network Operators and industrial energy customers.

Product overview

EA Technology offers a portfolio of diagnostic instruments, monitoring systems, software solutions, and technical services for electrical asset management in energy networks. The core product lines include: (1) the UltraTEV® range of partial discharge detection instruments (UltraTEV Plus² handheld device and UltraTEV Detector²) for identifying insulation degradation in switchgear and cables; (2) the Astute HV Monitoring® fixed monitoring service for continuous 24/7 PD monitoring of HV assets; (3) the VisNet suite for low voltage grid-edge intelligence including VisNet Hub (substation monitoring), VisNet Connect (connection planning tool), and VisNet View (pole-mounted feeder monitoring); (4) oil diagnostics services including Asset Oil Diagnostics (Live Tank Oil Sampling for switchgear) and Transformer Oil Diagnostics with Health Index assessments; (5) EA Technology Invest (AIM) software for asset investment planning and decision support; and (6) consulting services including Condition Assessment, Risk Optimisation, and Power System Analysis. The company operates on a solutions-and-services model, offering both standalone instruments and managed service contracts.

Differentiator

Problem solved

Functional benefit

Brands

• VisNet: Low voltage monitoring and smart grid solutions including VisNet Hub and VisNet View products for distribution network operators.
• UltraTEV
• Astute
• Power Forensics
• Net Zero Cheshire

Products and services

• VisNet Hub Award-winning Low Voltage monitoring system providing valuable insight into substation efficiency, optimisation and fault management. The first UK-developed technology providing grid-edge intelligence at feeder level for low voltage overhead networks, intended for Distribution Network Operators.
• VisNet View Compact pole-mounted monitoring device for overhead low-voltage networks providing grid-edge intelligence at feeder level with real-time data on phase currents, voltages, power metrics, and pre-fault events to help DNOs prioritise maintenance.
• VisNet Connect Online self-serve connection tool helping network operators understand the impact of new connections while allowing customers to streamline the connection process.
• Astute HV Monitoring Continuous 24/7 partial discharge monitoring service for high-voltage switchgear and cabling. Equipment is installed and commissioned with monthly fees; capability to monitor up to 180 cables simultaneously and up to 300 sensors.
• UltraTEV Plus² Advanced handheld partial discharge detection instrument with guided mode for simplified PD surveys, real-time noise discrimination, and cloud-based Managed Surveys integration for expert analysis. Designed for engineers and technicians conducting partial discharge surveys.
• UltraTEV Detector² Entry-level handheld PD detector with dual sensor technology (ultrasonic and TEV) for first-pass health and safety testing. Simple one-button operation with minimal training requirements.
• Power Forensics Failure investigation service covering all industry sectors from transmission and distribution to low voltage controls, including forensic analysis of midspan failures and systemic concerns.
• Asset Oil Diagnostics Live Tank Oil Sampling (LTOS) service for sampling switchgear units, optimising maintenance intervals through oil quality testing (moisture, acidity, breakdown voltage) and filtration/solid contamination assessment.
• Transformer Oil Diagnostics Transformer oil analysis providing accurate indication of internal transformer condition through Dissolved Gas Analysis (DGA), moisture, acidity, breakdown voltage, Furan Analysis, and Health Index assessment combining oil analysis with background information for strategic investment decisions.
• EA Technology Invest Online asset management and investment decision support tool enabling multi-site optimisation and investment modelling for network operators and asset managers.
• OLIMS (Oil Laboratory Information Management System) Client portal providing centralised platform for accessing, managing, and analysing oil diagnostic data in real time.
• UltraTEV Managed Surveys Cloud-based platform integrating with UltraTEV Plus², providing structured approach to PD Detection with expert analysis and seamless synchronisation of data for comparison with asset management systems.

Quantifiable outcome

• Up to 22% more capacity from existing electricity networks using monitoring apps
• +3 more outcomes

Named customers7 records

Segments5 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Three partnerships are on record, tiered core and minor.

• Fundamentals LtdcoreStrategic or Co-development Partner · 14 January 2026EA Technology acquired Fundamentals Ltd, a Swindon-based specialist in intelligent grid voltage control with over 30 years of experience in power systems. This is EA Technology's first step in a broader programme of M&A activity to consolidate grid-edge technologies globally, supported by Summa Equity. The acquisition strengthens UK's engineering capability while addressing growing global need for voltage management as more EVs and solar PV connect to the grid.
• Kirkland & EllisminorOthers · 14 October 2024Kirkland & Ellis advised Summa Equity on its investment in EA Technology. This is a legal advisory relationship supporting the investment transaction.
• Powerlink (Australia)coreStrategic or Co-development PartnerPowerlink (Queensland, Australia) partnered with EA Technology Australia to explore benefits and use of online partial discharge monitoring in transmission switchyards. Powerlink operates a network connecting five million people and 238,000 businesses across 1,700km. The partnership resulted in successful installation of 24/7 PD monitoring that identified PD in 275kV oil-filled cable terminations, enabling planned asset replacement with minimal downtime.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Megger: UK-based manufacturer of electrical test and measurement equipment for power utilities and industrial customers. Directly comparable in portable diagnostic instruments, condition assessment, and cable/transformer testing markets served to DNOs and electrical contractors.
• Doble Engineering: US-based provider of diagnostic testing, monitoring, and consulting services for electrical assets and power systems. Direct overlap in partial discharge detection, insulation testing, and transformer diagnostics for utility customers.
• OMICRON Energy: Austrian-headquartered specialist in testing, diagnostics, and monitoring solutions for power systems. Closely comparable in partial discharge detection instruments, transformer testing, and condition assessment services targeting utilities and industrial customers.
• Qualitrol: Provider of monitoring, protection, and diagnostic solutions for transformers and electrical assets (acquired Serveron and Dynamic Ratings). Direct peer in continuous PD monitoring, transformer dissolved gas analysis, and asset health monitoring for utilities.
• Dynamic Ratings: Provider of monitoring, control, and communication solutions for transformers and electrical assets. Comparable in condition-based monitoring, dissolved gas analysis, and transformer health index methodologies used by utilities.

Emerging players

• PowerShield: Specialist in continuous online partial discharge monitoring systems for MV/HV switchgear, generators, and motors. Smaller-scale specialist with overlapping PD monitoring focus but narrower product breadth than EA Technology.

Broad incumbents

• Siemens Energy: Global energy technology giant offering grid solutions including switchgear, transformers, grid management software, and asset monitoring. Much larger scale with broader portfolio, but overlapping capabilities in grid-edge intelligence and electrical asset monitoring.
• ABB: Global industrial technology leader providing electrification, motion, and process automation including grid solutions, switchgear, and asset management software. Much larger scale but overlapping capabilities in smart grid and electrical asset monitoring.
• Schneider Electric: Global specialist in energy management and automation with EcoStruxure platform covering grid operations and electrical asset monitoring. Much larger scale with much broader portfolio but overlapping focus on LV distribution monitoring and grid-edge intelligence.
• Hitachi Energy: Global provider of grid solutions including transformers, switchgear, and grid automation software (formerly ABB Power Grids). Much larger scale with broad portfolio; overlapping in transformer monitoring, grid management, and asset health solutions for utilities.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/eatechnology
• LinkedInlinkedin.com/company/ea-technology
• Facebookfacebook.com/eatechnology

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries1 record

Funding overview

Funding rounds1 record

Investors1 record

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

M&A

Investments

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

Frequently asked questions about EA Technology