Energy Consultancy Ltd

What Energy Consultancy Ltd does

Energy Consultancy Ltd is a privately held UK specialist nuclear engineering consultancy, founded in 2015 and headquartered in Reepham, Norwich. The firm delivers HVAC, Electrical/Control & Instrumentation (EC&I), installation and commissioning, Building Information Modeling (BIM), and Safety Case and C&I qualification services to operators of nuclear licensed sites. Its client base consists of enterprise nuclear facility owners and their tier-1 delivery contractors across the UK, with named engagements for EDF Energy (Dungeness B Reactor Building and Switch House H&V upgrades; Heysham 1 HVAC and Heating Upgrades Programme), Dalkia (delivery partner on EDF-commissioned nuclear HVAC programmes), and URENCO (full HVAC, EC&I and controls installation at the Capenhurst uranium enrichment facility). The company operates across the UK nuclear generation fleet including Sizewell B, Dungeness B, Hinkley Point, Hartlepool, Heysham 1&2, and Hunterston B.

The core offering is service-based rather than product-based: bespoke Air Handling Unit (AHU) design, ductwork to DW144 standard, control panel design, BMS integration, and comprehensive nuclear compliance documentation (RAMS, ITPs, Quality Plans, Lifetime Record Packs, Design Substantiation Reports). Energy Consultancy holds ISO 9001, ISO 14001, and ISO 45001 certifications issued by UKAS in June 2022, and its team includes SC-cleared personnel authorised to work on live nuclear sites. Project partners include Airedale (Modine) for HVAC plant and SAUTER for building management controls.

The business model is professional services project delivery, with revenue earned on a project-by-project basis through direct engagement with nuclear operators or via tier-1 delivery partners such as Dalkia. Go-to-market is enterprise field sales into a small number of nuclear licensed-site customers, with no public pricing and no software or productised offering. Distribution is direct, and the marketing footprint is limited to the company website. Energy Consultancy is privately owned with no disclosed investors, parent entity, or funding rounds; the stated strategic intent is to expand its nuclear engineering expertise internationally beyond the UK fleet.

Name

Energy Consultancy Ltd

Legal name

Energy Consultancy Ltd

Website

https://energy-consultancy.uk

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

1–10 employees

Short description

Energy Consultancy Ltd is a UK specialist nuclear engineering consultancy delivering HVAC, EC&I design, installation, commissioning, BIM, and safety case services to operators of nuclear licensed sites including EDF Energy, Dalkia, and URENCO across the UK nuclear fleet.

Ownership category

akta.pro rank

Product category

Nuclear Engineering Services

NAICS

Engineering Services (54133), Engineering Services (541330)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Instrumentation & Control (I&C) Integration & Commissioning Support (EUAKAAAH)

akta.pro secondary industry

Construction Management, Supervision & Field Engineering (EUAKAAAJ)

Keywords

• Nuclear engineering services
• HVAC design
• Building services engineering
• Controls and instrumentation
• Nuclear compliance consulting

Headquarters

HQ city

Reepham, Norwich

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Nuclear Engineering Project Services: The company generates revenue through specialist engineering project engagements with nuclear facility operators. Projects span HVAC design and installation, EC&I design, installation and commissioning support, and safety case qualification services. Revenue is project-based, earned through commissioned work from concept through to commissioning across the UK nuclear fleet.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Energy Consultancy Ltd is a specialist nuclear engineering partner delivering HVAC, building services, and Controls & Instrumentation (C&I) solutions across the UK's nuclear generation fleet. The company supports projects from concept through to commissioning with safety, compliance, and performance at the core, including bespoke AHU design, EC&I design, installation and commissioning services, BIM coordination, and Safety Case & C&I qualification for nuclear regulated environments.

Product overview

Energy Consultancy Ltd operates as a specialist nuclear engineering consultancy offering a unified suite of integrated engineering services for the nuclear sector. The company delivers a comprehensive portfolio comprising Building Services/HVAC Design (including bespoke AHU design and DW144 ductwork), Electrical/Control & Instrumentation (EC&I) Design, Installation & Commissioning Support, Building Information Modeling/Management, and Safety Case & C&I Qualification. These services are designed to work together as an end-to-end offering—supporting projects from concept through to commissioning sign-off—across the UK's nuclear generation fleet including Sizewell, Dungeness, Hinckley Point, Heysham, Hartlepool, Hunterston B, and URENCO facilities. The company does not offer a software product; its offering is service-based consulting and technical delivery.

Differentiator

Problem solved

Functional benefit

Products and services

• Building Services / HVAC Design Specialist HVAC (Heating, Ventilation, and Air Conditioning) design services tailored for nuclear environments, including bespoke Air Handling Unit (AHU) design, ductwork design to DW144 standard, and integration with BMS controls. Targeted at UK nuclear power station operators including EDF Energy and URENCO.
• Electrical, Control & Instrumentation (EC&I) Design Electrical, controls, and instrumentation design services for nuclear and regulated environments, including control panel design, BMS integration, and automated controls for HVAC and Chilled Water Systems. Targeted at nuclear facility operators requiring safety-critical EC&I design.
• Installation & Commissioning Support Full plant installation and C&I commissioning services in live nuclear environments, with complete documentation including RAMS, ITPs, Quality Plans, and Lifetime Record Packs. Targeted at nuclear facility operators requiring commissioning support on operational sites.
• Building Information Modeling / Management (BIM) Building Information Modeling and management services for coordinating complex HVAC and building services installations across nuclear facilities. Supports design coordination and lifecycle management. Targeted at operators of complex nuclear facilities requiring coordinated multi-discipline building services design.
• Safety Case & C&I Qualification Safety case development and C&I (Controls & Instrumentation) qualification services ensuring compliance with nuclear safety standards and regulatory requirements. Targeted at operators of nuclear regulated environments requiring documented safety case and qualified C&I systems.

Quantifiable outcome

• Full HVAC, EC&I, and controls installation delivered to nuclear compliance standards at URENCO Capenhurst, including comprehensive documentation package.
• +2 more outcomes

Named customers3 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Emerging players

• SLR Consulting: Global environmental and engineering consultancy with a growing UK nuclear practice. Provides engineering, environmental, and safety-related services to UK nuclear clients; comparable to Energy Consultancy in being a mid-sized multi-disciplinary consultancy pursuing nuclear work, though with a different capability mix (heavier on environmental, lighter on live-site installation).

Broad incumbents

• AECOM: Global infrastructure consulting firm with a UK nuclear practice spanning EDF fleet support, new build, and decommissioning. Offers HVAC, building services, and C&I engineering through a much larger delivery organisation; competes with Energy Consultancy for fleet-level framework work and represents the Tier 1 incumbent that small specialists often feed into as subcontractors.
• AtkinsRéalis (formerly SNC-Lavalin): Global engineering services group with a significant UK nuclear practice (formerly Atkins Nuclear). Provides engineering, C&I, and project delivery for Hinkley Point C, SZC, and EDF fleet work — overlapping in capability and customer base with Energy Consultancy but operating at significantly larger scale and competing for framework-level work.
• Jacobs (Amentum): Global engineering and nuclear services firm with a substantial UK nuclear practice spanning EDF, Dounreay, and Sellafield frameworks. Offers C&I, HVAC, and safety case capabilities as part of a much broader portfolio — overlapping with Energy Consultancy but competing at Tier 1 scale that Energy Consultancy cannot match.
• Wood Group (Wood Nuclear): Global engineering and consulting firm with a dedicated nuclear business covering decommissioning, operations support, and new build. Provides comparable EC&I and safety-related engineering services to UK and international nuclear operators; competes with Energy Consultancy on similar scopes though typically at larger contract scale.

Direct peers

• Assystem: Independent international engineering group with a large nuclear specialism (formerly Assystem UK, Sella, and Atkins nuclear legacy work). Provides nuclear I&C, safety case, and engineering services to EDF and Hinkley Point C — directly comparable to Energy Consultancy's EC&I, Safety Case & C&I qualification offering, though at much larger scale.
• Nuvia (Vinci Construction): Vinci-owned nuclear services specialist providing engineering, safety case, and on-site services across the UK and European nuclear sectors. Competes head-to-head with Energy Consultancy for EC&I and HVAC scopes at UK nuclear licensed sites and offers a directly comparable safety case and qualification capability.
• Cavendish Nuclear (Babcock International): The UK's largest dedicated nuclear services company, owned by Babcock International. Delivers nuclear site engineering, decommissioning, and facility services across the same UK operator base (EDF, URENCO, Magnox). Direct competitor for HVAC, EC&I, and building services scope on the same UK nuclear fleet projects Energy Consultancy is targeting.
• Frazer-Nash Consultancy: UK-headquartered independent engineering consultancy with a strong nuclear and safety-critical systems practice. Provides safety case, C&I qualification, and systems engineering services to UK nuclear operators — directly comparable to Energy Consultancy's safety case and C&I offering, and a likely competitor for similar mid-sized scopes.

Others

• Westinghouse (UK): Global nuclear OEM and services provider with a UK presence spanning new build, fuel, and services. Not a direct competitor on HVAC/EC&I services but a key ecosystem player: Westinghouse technology underpins several UK AGR and PWR plants, and the firm influences operator procurement strategies that shape opportunities available to specialist services firms like Energy Consultancy.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/energyconsultancy

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

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 Energy Consultancy Ltd