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Energy & Utilities

Electricity, gas, water, renewables and energy services.

7,047 active companies

Browse by subcategory

Electricity & Gas Supply
Water & Waste Services
Fuel & Petroleum Products

Top Companies

Net WorthTurnoverEmployees
1Avis Energy Limited£329999.9M2Dwr Nwy Trydan Holdings Limited£2805.0M3Bolttas Energy Europe Ltd£500.0M-£3k4Grundon Waste Management Limited£223.3M5Foxglove Energy Supply Ltd£113.2M+£113.2M6Alfanar Power Limited£111.1M7Flex-Go Energy Limited£100.0M-£4k8Aduol Industries Limited£97.5M9Avanti Grid Limited£96.0M10Emerald Holdco Limited£91.2M+£41.5M

Alexander Renewables Ltd

active

16909467

BURY ST. EDMUNDS Inc. 14/12/2025
Ltd

Essp Ltd

active

16911253

RAMSGATE Inc. 15/12/2025
Ltd

Ace Instruments Ltd

active

16912121

RUISLIP, Inc. 15/12/2025
Ltd

Karm Energy Holding Ltd

active

16913585

LONDON Inc. 16/12/2025
Ltd

Ampah Ltd

active

16914059

LONDON Inc. 16/12/2025
Ltd

Kislingbury Energy Limited

active

16916922

MILNTHORPE Inc. 17/12/2025
Ltd

Blue Sustainable Power Ltd

active

16921723

EDGWARE Inc. 19/12/2025
Ltd

Great County Energy Ltd

active

16926134

BIRMINGHAM Inc. 22/12/2025
Ltd

Kenn Bros

active

16926404

ELLESMERE Inc. 22/12/2025
Private Unlimited

International Power Group Limited

active

16930652

YORK Inc. 24/12/2025
Ltd

Enexfi Ltd

active

16933077

LONDON Inc. 29/12/2025
Ltd

Cryocompute Ltd

active

16937813

LONDON Inc. 31/12/2025
Ltd

Food2fuel Uk Ltd

active

16944757

LONDON Inc. 06/01/2026
Ltd

Epow Limited

active

16946058

MIDDLESBROUGH Inc. 06/01/2026
Ltd

Iwk Energy Ltd

active

16946500

LONDON Inc. 06/01/2026
Ltd

Graham Engineering And Facilities Services Ltd

active

16948859

LONDON Inc. 07/01/2026
Ltd

Beachampton Solar Project Holdco Limited

active

16950297

READING Inc. 08/01/2026
Ltd

Emerald Solar Ltd

active

16950392

SOLIHULL Inc. 08/01/2026
Ltd

1sun Planet Energy Limited

active

16952961

BASINGSTOKE Inc. 09/01/2026
Ltd

Bpg Infrastructure Ltd

active

16953508

LONDON Inc. 09/01/2026
Ltd

Hayes Holdings Group Ltd

active

16954464

PORTSMOUTH Inc. 10/01/2026
Ltd

Ark Solar Limited

active

16957781

MARKET HARBOROUGH Inc. 12/01/2026
Ltd

Great Oak Energy Ltd

active

16959220

LONDON Inc. 13/01/2026
Ltd

Heather Moor Wind Farm Limited

active

16959373

LONDON Inc. 13/01/2026
Ltd

Koventures Ltd

active

16961806

WOOLWICH, LONDON Inc. 14/01/2026
Ltd

Kaltun Uk Limited

active

16962287

LONDON Inc. 14/01/2026
Ltd

Cotswold Cleantech Energy Ltd

active

16962739

CHELTENHAM Inc. 14/01/2026
Ltd

Msp Windtech Ltd

active

16968398

CHESTER Inc. 16/01/2026
Ltd

Enray Canopy Holdco Ltd

active

16971408

RUGBY Inc. 19/01/2026
Ltd

Energy Science Limited

active

16977984

STOCKPORT Inc. 21/01/2026
Ltd

Bowbeat Repowering Limited

active

16980044

BRISTOL Inc. 22/01/2026
Ltd

Dun Law 1 Repowering Limited

active

16980050

BRISTOL Inc. 22/01/2026
Ltd

Cruach Mhor Repowering Limited

active

16980056

BRISTOL Inc. 22/01/2026
Ltd

J.D. Fulton (Tullylinkesay Mills) Limited

active

NI015790

CO. LONDONDERRY Inc. 11/05/1982
Ltd

W.D. & M.C. Alexander Construction Limited

active

NI022625

COOKSTOWN Inc. 25/04/1989
Ltd

Wilson'S Country Limited

active

NI025583

CO ARMAGH Inc. 28/05/1991
Ltd

Ttep Kilroot Power Ltd

active

NI026039

CARRICKFERGUS Inc. 25/10/1991
Ltd

Ttep Ballylumford Power Ltd

active

NI026040

ISLANDMAGEE Inc. 25/10/1991
Ltd

Almonry Limited

active

NI027666

COLERAINE Inc. 02/08/1993
Ltd

Balcas Bioenergy Limited

active

NI028014

ENNISKILLEN Inc. 15/12/1993
Ltd

Harperstown Power Limited

active

NI028395

CO. ANTRIM Inc. 21/04/1994
Ltd

Crew Pork Processors Limited

active

NI032270

CO TYRONE Inc. 16/04/1997
Ltd

Lendrum'S Bridge Wind Farm Limited

active

NI035116

MILLBROOK Inc. 30/10/1998
Ltd

Owenreagh Power Partners Ltd

active

NI037164

BELFAST Inc. 20/10/1999
Ltd

A.C. Powerlines Ltd

active

NI037382

CRAIGAVON Inc. 17/11/1999
Ltd

Blackwater Electricity Limited

active

NI039700

LARNE Inc. 24/11/2000
Ltd

Coolkeeragh Esb Limited

active

NI042138

LONDONDERRY Inc. 13/12/2001
Ltd

A.C.J. Trading Limited

active

NI047729

BELFAST Inc. 02/09/2003
Ltd

Tyrone Wind Energy Ltd

active

NI048682

BELFAST Inc. 13/11/2003
Ltd

Lough Hill Wind Farm Limited

active

NI050663

MILLBROOK Inc. 13/05/2004
Ltd
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