E S M Power
ESM Power Limited is a UK-based NERS-accredited Independent Connections Provider delivering high voltage electrical engineering services — design, build, maintenance, and grid connections up to 132kV — to renewables, industrial, commercial, and data centre clients, operating as part of Mitie Power & Grid following its August 2024 acquisition.
- Company typePrivate
- Founded2004
- HeadquartersScunthorpe, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingServices
What E S M Power does
E S M Power Limited is a UK-based high voltage electrical engineering company founded circa 2004 and headquartered in Scunthorpe, North Lincolnshire. The firm operates as a National Electricity Registration Scheme (NERS) accredited Independent Connections Provider (ICP), designing, building, maintaining, repairing, and replacing electrical networks and utility connections ranging from LV supply connections up to 132kV. ESM Power delivers its services through three core divisions — ESM NETWORKS (HV network operation, maintenance, and 24-hour emergency response), ESM DESIGN (electrical design consultancy), and ESM CONNECT (contestable ICP connections) — and supplements these with specialised capabilities in High Inertia Synchronous Condenser installation, Battery Energy Storage System delivery, primary substation construction, and multi-utility solutions.
The company serves enterprise customers across four primary verticals: renewables (solar farms and battery storage developers requiring 132kV grid connections and balance of plant services), industrial (operators of HV networks needing maintenance and compliance), commercial (property developers and operators requiring multi-utility and HV infrastructure for mixed-use estates), and data centres (operators needing high-reliability primary substations and resilience upgrades). Notable engagements include the 49.9MW West Raynham Solar Farm 132kV connection, the £25m Lister Drive HISC grid stabilisation project with ABB, the Cody Park and Spring Park data centre substation builds, the Wood Wharf 45MVA commercial connection for Canary Wharf Group, and ongoing O&M of 11 HV sites for Moto Hospitality across the UK motorway network.
ESM Power was acquired by Mitie, the FTSE 250 facilities transformation company, on 1 August 2024 and now operates as part of Mitie's Projects division. Post-acquisition, ESM Power joined with Rock Power Connections and G2 Energy to form Mitie Power & Grid, a unified ICP platform combining over 300 specialist grid connection and balance-of-plant engineers under a single NERS accreditation. The business monetises through project-based engineering services and recurring O&M contracts, sold via direct enterprise engagement, competitive tendering, and repeat client relationships, with no public pricing disclosure and no channel intermediaries.
E S M Power firmographics
Firmographics- Name
- E S M Power
- Legal name
- ESM Power Limited
- Website
- https://esmpower.co.uk
- Company type
- Private
- Founded year
- 2004
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- ESM Power Limited is a UK-based NERS-accredited Independent Connections Provider delivering high voltage electrical engineering services — design, build, maintenance, and grid connections up to 132kV — to renewables, industrial, commercial, and data centre clients, operating as part of Mitie Power & Grid following its August 2024 acquisition.
- Ownership category
- akta.pro rank
E S M Power industry classification
Industry- Product category
- High Voltage Electrical Engineering Services
- NAICS
- Electric Power Transmission, Control, and Distribution (22112), Electric Power Distribution (221122)
- SIC
- Electric Services (4911)
- akta.pro primary industry
- Substation Systems & Integration (EPC, Engineering, Protection, Commissioning) (IMAGAAAC)
- akta.pro secondary industries
- Distribution Substations & Switching Stations (MV) EPC (EUAEACAC), High-Voltage Electrical Systems (Switchgear, Transformers, Protection & Control) (EUAEAFAA), Transmission & Substation O&M (HV Equipment Maintenance) (EUAEAGAD)
Keywords
Where E S M Power is headquartered
LocationHeadquarters
- HQ city
- Scunthorpe
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
E S M Power business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Supply Chain, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Project-Based Engineering Services: Design, procurement, construction, and commissioning services for high voltage infrastructure projects including solar farms, data centers, commercial developments, and industrial facilities. Revenue recognized upon project completion.
- Operations & Maintenance Contracts: Ongoing O&M contracts providing annual inspection visits, planned preventative maintenance, 24-hour emergency cover, and technical support for clients' high voltage substations and equipment.
- Grid Connections: Connection services ranging from LV supply connections up to 132kV for utility connections, solar farms, battery storage, and commercial/industrial developments.
Go-to-market motion2 records
Distribution channels1 record
Marketing channels4 records
E S M Power product offering
Product offeringCore offering
ESM Power is a High Voltage Electrical Engineering company operating as a NERS-accredited Independent Connections Provider (ICP). It delivers the design, build, maintenance, repair and replacement of electrical networks and utility connections ranging from LV supply connections up to 132kV for industrial, commercial, renewables and data center customers across the UK. The company operates through three divisions (ESM NETWORKS, ESM DESIGN, ESM CONNECT) and is now part of the Mitie Power & Grid umbrella following Mitie's August 2024 acquisition.
Product overview
ESM Power is a High Voltage Electrical Engineering Company offering a complete service for existing networks and utility connections. The company operates through three main divisions: ESM NETWORKS (safe operation, maintenance and development of HV electrical networks), ESM DESIGN (electrical design consultancy), and ESM CONNECT (accredited ICP delivering connections up to 132kV). The company also provides specialized services including High Inertia Synchronous Condensers (HISC) for grid stabilization, Primary Substation Construction, Multi-Utility Solutions, Battery Energy Storage Systems (BESS), Solar Farm Grid Connections, and Operation & Maintenance (O&M) services. ESM Power operates as part of Mitie Power & Grid alongside Rock Power Connections and G2 Energy.
Differentiator
Problem solved
Functional benefit
Quantifiable outcome
- Delivered 132kV connection for 49.9MW West Raynham Solar Farm within 6-month deadline
- +3 more outcomes
Companies that use E S M Power
Customer profileNamed customers11 records
Segments4 records
Ideal customer profiles4 records
E S M Power technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
E S M Power partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered core and major.
- G2 EnergycoreG2 Energy integrated with ESM Power into a unified Mitie Power & Grid NERS accreditation. This combines the expertise of both organizations under one best-in-class policy and procedure framework.
- Rock Power ConnectionscoreRock Power Connections is set to join the unified Mitie Power & Grid NERS accreditation by end of 2025, bringing three leading ICP brands together.
- ABBmajorESM Power acted as Strategic Partner providing installation services for ABB's High Inertia Synchronous Condenser (HISC) units at the Lister Drive grid stabilization project in Liverpool. ESM provided interface design, cable connections, commissioning support, and project management.
- Brookgate LtdmajorESM Power appointed by Brookgate Ltd for major multi-utility project at Cambridge North development, providing gas, clean water, waste water, BT, private comms, and 12.4 MVA 11kV electrical supply.
- Scottish & Southern Energy Power Distribution (SSEPD)majorCody Park Data Campus project located within SSEPD DNO footprint. ESM Power designed and commissioned electrical infrastructure to SSEPD standards for 33kV connection adoption.
Scale indicators6 records
Recent moves9 records
Expansion highlights6 records
E S M Power competitors and assessment
Company assessmentBroad incumbents
- Clancy Group: UK utility services group operating across power, water and telecoms with HV infrastructure capability serving DNOs and renewable developers. Competes with ESM on contestable works at scale across multiple UK regions.
- NG Bailey: Major UK electrical and HV infrastructure contractor with a Services division delivering HV connections, substations and balance-of-plant work. Larger and broader than ESM, but competes in the same ICP and HV substation space across renewables and data centres.
- Balfour Beatty: FTSE-listed infrastructure group with significant UK HV and substation delivery capability, including contestable connection works and renewable energy grid connections. A much larger, more diversified competitor but with overlapping capability in ESM's core 132kV and substation EPC niche.
- Network Plus (part of MGroup Services): Major UK multi-utility infrastructure contractor delivering HV distribution, substation and ICP works for DNOs and developers. Significantly larger than ESM but offers overlapping HV design, build and maintenance capability.
Direct peers
- Integrated Utility Services (IUS): UK Independent Connections Provider delivering contestable HV connection works and balance-of-plant services to DNOs and developers. Directly competes with ESM on solar, BESS and commercial HV connections at 11kV–132kV under NERS accreditation.
- Smith Brothers (HV) Ltd: UK NERS-accredited HV electrical contractor specialising in HV connections, substation builds and O&M. Overlaps directly with ESM's ESM CONNECT and ESM NETWORKS divisions in renewables and industrial customer segments.
- Rock Power Connections: Sister ICP brand now combined with ESM Power and G2 Energy under the unified Mitie Power & Grid NERS accreditation. Operates the same HV connections, design and balance-of-plant services up to 132kV across the UK, with directly overlapping customer segments in renewables and commercial property.
- McCann & Co (Power Networks): Long-established UK ICP with NERS accreditation delivering HV design, build and connection services. Direct competitor to ESM on DNO contestable work and renewables grid connections at 11kV–132kV.
- G2 Energy: UK NERS-accredited ICP merged with ESM Power under the unified Mitie Power & Grid NERS accreditation. Provides near-identical HV grid-connection, design and ICP services, making it the closest functional peer to ESM in scope, customer mix and voltage-class capability.
- Freedom Group (part of MGroup Services): One of the UK's largest ICP and HV infrastructure contractors following MGroup Services' acquisition of Freedom. Competes head-to-head with ESM on DNO contestable works, BESS and renewable grid connections across multiple UK regions.
Market position
Strengths2 records
Weaknesses5 records
Competitive moat5 records
Key risks1 record
Key highlights7 records
Customer concentration
E S M Power social profiles
Digital presenceE S M Power compliance and trust
Trust signalCompliance9 records
E S M Power financial estimates
Financial estimateRevenue estimate
Valuation estimate
E S M Power leadership team
Management profileNumber of profiles
Profiles13 records
E S M Power funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
E S M Power 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 E S M Power
What does E S M Power do?
ESM Power is a High Voltage Electrical Engineering company operating as a NERS-accredited Independent Connections Provider (ICP). It delivers the design, build, maintenance, repair and replacement of electrical networks and utility connections ranging from LV supply connections up to 132kV for industrial, commercial, renewables and data center customers across the UK. The company operates through three divisions (ESM NETWORKS, ESM DESIGN, ESM CONNECT) and is now part of the Mitie Power & Grid umbrella following Mitie's August 2024 acquisition.
Is E S M Power a public or private company?
E S M Power is a private company. It is classified as corporate owned and is currently operating.
When was E S M Power founded?
E S M Power was founded in 2004. It employs 11 to 50 people.
Where is E S M Power based?
E S M Power is headquartered in Scunthorpe, United Kingdom, in the Europe region.
How does E S M Power make money?
Three revenue lines are on record. Project-Based Engineering Services are the primary driver. The others are operations & Maintenance Contracts and grid Connections.
Who are E S M Power's main competitors?
Broad incumbents on record are Clancy Group, NG Bailey, Balfour Beatty and Network Plus (part of MGroup Services). Direct peers are Integrated Utility Services (IUS), Smith Brothers (HV) Ltd, Rock Power Connections, McCann & Co (Power Networks), G2 Energy and Freedom Group (part of MGroup Services).
Does E S M Power have an API?
No public API is recorded for E S M Power.
What industry is E S M Power in?
E S M Power's product category is High Voltage Electrical Engineering Services. Its primary akta.pro industry code is IMAGAAAC, Substation Systems & Integration (EPC, Engineering, Protection, Commissioning), with a secondary code of EUAEACAC, Distribution Substations & Switching Stations (MV) EPC. Its NAICS code is 22112 and its SIC code is 4911.