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100 leading energy companies in London

Tamtam tracks 123 energy companies headquartered in London. This list ranks the 100 largest by number of employees on LinkedIn, led by Shell, bp and Rolls-Royce. Their median headcount is 427. Half of them were founded in 2010 or later.

馃嚞馃嚙 London100 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Shellshell.com

A global energy company with a focus on cleaner energy solutions, serving millions of customers through retail service stations worldwide

Oil and Gas 馃嚞馃嚙 London 208,511 n/a
2
bpbp.com

Investing in a balanced energy system by transitioning from oil and gas to lower-carbon energy, convenience stores, and power trading

Oil and Gas 馃嚞馃嚙 London 85,000 1909
3
Rolls-Roycerolls-royce.com

Engineering excellence driving critical technologies for air, sea, and land, powering, protecting, and connecting people worldwide.

Industrial Machinery Manufacturing 馃嚞馃嚙 London 31,649 n/a
4
National Gridnationalgrid.com

Operate and develop electricity transmission and distribution networks, natural gas systems, and invest in clean energy infrastructure and technology ventures.

Utilities 馃嚞馃嚙 London 17,432 n/a
5
Subsea7subsea7.com

Provides offshore services supporting lower-carbon oil and gas evolution, renewable energy growth, and emerging energy solutions for energy transition.

Oil and Gas 馃嚞馃嚙 London 13,582 2002
6
INEOSineos.com

Global manufacturer of raw materials and energy producer striving to reduce carbon emissions, create sustainable products, and improve living standards worldwide

Chemical Manufacturing 馃嚞馃嚙 London 12,070 1998
7
EDF (UK)edfenergy.com

Leading sustainable energy transition, building nuclear power, investing in renewables like wind and solar, and electrifying homes and businesses with low-carbon technology.

Utilities 馃嚞馃嚙 London 8,774 2003
8
Johnson Mattheymatthey.com

development of sustainable technologies supporting energy, chemicals, and automotive sectors to decarbonise, reduce emissions, and enhance sustainability

Chemical Manufacturing 馃嚞馃嚙 London 8,592 1817
9
Perencoperenco.com

An independent hydrocarbon producer, involved in the entire lifecycle of projects, from exploration to decommissioning, operating globally with a strong team.

Oil and Gas 馃嚞馃嚙 London 6,910 1992
10
Octopus Energyoctopus.energy

providing affordable, transparent renewable energy solutions with innovative technology and exceptional customer service across multiple countries and sectors

Utilities 馃嚞馃嚙 London 5,415 n/a
11
Utility Warehouseuw.co.uk

A growing business focusing on simplifying utilities and providing personalized service to help people spend more time on important things

Utilities 馃嚞馃嚙 London 5,083 1997
12
Vivo Energyvivoenergy.com

A leading energy company in Africa, distributing Shell and Engen branded fuels and lubricants to retail and commercial customers with a focus on safety, innovation, and customer satisfaction

Oil and Gas 馃嚞馃嚙 London 5,081 2011
13
Shell Energyshell.com

Support businesses with energy management, cost control, efficiency improvement, and achieving decarbonisation goals for sustainable energy futures.

Oil and Gas 馃嚞馃嚙 London 4,145 n/a
14
Ensco plcvalaris.com

A global leader in advanced operations, Valaris prioritizes safety, ethics, and innovation to provide lasting value for employees and partners worldwide

Oil and Gas 馃嚞馃嚙 London 3,604 n/a
15
Invensys - Acquired by Schneider Electricse.com

Designing and supplying advanced technologies that optimize operational performance and profitability for industrial and commercial customers, including software, systems, and controls.

Automation Machinery Manufacturing 馃嚞馃嚙 London 3,544 n/a
16
UK Power Networksukpowernetworks.co.uk

This company is a leading Distribution Network Operator in the UK, serving millions of homes and businesses by maintaining and upgrading power equipment

Utilities 馃嚞馃嚙 London 3,357 n/a
17
Equans UK & Irelandequans.co.uk

Provider of sustainable facilities management, energy, and digital services focused on decarbonisation and supporting low carbon transitions across sectors.

Environmental Services 馃嚞馃嚙 London 2,344 n/a
18
Krakenkraken.tech

AI-powered operating system enhancing customer satisfaction, product innovation, revenue generation, and operational savings for energy, water, and telco utilities.

Technology, Information and Internet 馃嚞馃嚙 London 2,125 n/a
19
Urenco Globalurenco.com

Supplier of nuclear fuel enrichment services using centrifuge technology, ensuring safe, reliable, and sustainable nuclear fuel supply globally.

Utilities 馃嚞馃嚙 London 2,027 1970
20
Borr Drillingborrdrilling.com

Offshore drilling contractor providing worldwide services with premium jack-up rigs for safe, efficient, and sustainable operations in water depths up to 400 feet

Oil and Gas 馃嚞馃嚙 London 1,947 2016
21
E.ON Nexteonnext.com

Helping customers reduce energy bills and environmental impact by facilitating the energy transition and promoting CO2 savings in the UK.

Utilities 馃嚞馃嚙 London 1,792 2020
22
Huntinghuntingplc.com

Global energy services provider to top oil and gas companies, specializing in manufacturing and distributing products for extraction Headquartered in the UK

Oil and Gas 馃嚞馃嚙 London 1,713 1874
23
ENGIE UKengie.co.uk

A global energy player with investments in renewable energy and storage, providing energy solutions to organizations, committed to achieving net zero carbon

Utilities 馃嚞馃嚙 London 1,468 2009
24
Associated British Portsabports.co.uk

Management of 21 UK ports handling significant trade volumes, supporting offshore wind industry, decarbonisation, property development, marine research, and dredging services.

Transportation, Logistics, Supply Chain and Storage 馃嚞馃嚙 London 1,409 1962
25
Octopusoctopusgroup.com

It is an entrepreneurial investment group focused on building businesses that address societal challenges, emphasizing stakeholder interests and sustainability.

Financial Services 馃嚞馃嚙 London 1,234 n/a
26
Lightsource bplightsourcebp.com

A global solar leader in partnership with bp, developing, managing, and operating solar projects while prioritizing sustainability and community impact

Services for Renewable Energy 馃嚞馃嚙 London 1,130 2010
27
Faithful+Gouldatkinsrealis.com

Global engineering services and nuclear organization connecting people, data, and technology to transform infrastructure and energy systems worldwide.

Construction 馃嚞馃嚙 London 1,116 n/a
28
Trident Energybit.ly

A leading player in oil and gas, specializing in acquiring and revitalizing mid-life assets, focusing on growth, value creation, sustainability, and community engagement

Oil and Gas 馃嚞馃嚙 London 1,098 2016
29
EDF Tradingedftrading.com

Management of global energy assets including electricity, gas, oil, and environmental products, providing market access and risk management.

Oil and Gas 馃嚞馃嚙 London 963 1999
30
TNK-BPtnk-bp.com

A company in the oil and gas sector acquired by Rosneft, engaged in the exploration, production, and distribution of oil and natural gas

Oil and Gas 馃嚞馃嚙 London 888 2000
31
Greenergygreenergy.com

A leading supplier of waste-based renewables and transportation fuels, committed to driving transport decarbonisation through reliable customer service and global supply chain

Oil and Gas 馃嚞馃嚙 London 879 1992
32
Afrenafren.com

Independent oil and gas exploration and production company with assets in 11 countries, producing in Nigeria and Kurdistan, and exploring in various African nations

Oil and Gas 馃嚞馃嚙 London 869 2005
33
Nadaranadara.com

Ownership and operation of around 200 renewable energy sites across Europe and the US producing electricity from wind, solar, waste-to-energy, and biomass.

Renewable Energy Power Generation 馃嚞馃嚙 London 836 2010
34
SmartestEnergysmartestenergy.com

An energy company empowering customers, generators, and partners to transition to renewable energy and achieve net zero emissions through innovative solutions

Utilities 馃嚞馃嚙 London 820 2001
35
Centrica Energycentricaenergy.com

Renewable energy trading company moving energy globally while driving green transition with sustainable costs, fostering a culture of employee engagement and empowerment

Oil and Gas 馃嚞馃嚙 London 818 1998
36
Assala Energyassalaenergy.com

An energy company in Africa focused on acquiring mature oil and gas assets, increasing production and reserves through field redevelopment

Oil and Gas 馃嚞馃嚙 London 776 2017
37
Kaluzakaluza.com

Energy software company enabling energy suppliers to streamline operations, enhance customer service, and drive decarbonisation through smart technology solutions

Technology, Information and Internet 馃嚞馃嚙 London 710 n/a
38
Smart DCCsmartdcc.co.uk

Digitising Britain's energy infrastructure through a secure wireless network connecting smart meters to energy suppliers and operators for efficiency.

Energy Technology 馃嚞馃嚙 London 684 2013
39
Fieldfield.energy

A company leading the way in renewable energy infrastructure and trading, starting with energy storage to create a reliable national grid

Renewable Energy Power Generation 馃嚞馃嚙 London 668 2020
40
SEFE Marketing & Trading Ltdsefe-mt.com

Leading European energy trading company offering physical & financial trading of LNG, gas, power, environmental products, and hydrogen with risk management services

Oil and Gas 馃嚞馃嚙 London 643 n/a
41
Sonnedixsonnedix.com

Delivering clean electricity to customers through solar, wind, and storage assets; acquiring, developing, building, and operating renewable energy projects.

Renewable Energy Power Generation 馃嚞馃嚙 London 628 2009
42
Energeanenergean.com

Independent E&P company focused on developing resources in Mediterranean & UK North Sea Committed to sustainable development and being net zero emitter by 2050

Oil and Gas 馃嚞馃嚙 London 627 2007
43
EDF power solutions UK and Irelandedf-powersolutions.uk

Renewable energy company in the UK with a portfolio of onshore, offshore, battery, and solar projects, focusing on affordable low carbon electricity and community engagement

Renewable Energy Power Generation 馃嚞馃嚙 London 593 2008
44
Atlantica Sustainable Infrastructure Plcatlantica.com

Atlantica is a sustainable infrastructure company investing in renewable energy, storage, natural gas, transmission lines, water assets for stable cash flows and growth

Renewables & Environment 馃嚞馃嚙 London 586 2014
45
Bouygues Energies & Services (UK)equans.co.uk

Facilities management, energy solutions, and connected cities services across the UK and Ireland focused on low carbon and resilience.

Renewables & Environment 馃嚞馃嚙 London 586 n/a
46
Octopus Electric Vehiclesoctopusev.com

Specializing in electric car leasing and salary sacrifice packages, providing expert advice, great deals, and charging solutions to empower businesses and employees

Motor Vehicle Manufacturing 馃嚞馃嚙 London 493 n/a
47
Podpodenergy.com

Leading provider of electric vehicle charging solutions for homes, public spaces, and workplaces, making clean energy easy, affordable, and accessible.

Energy Technology 馃嚞馃嚙 London 453 2009
48
Fuse Energyfuseenergy.com

A global full stack renewable energy company based in London, New York, and Texas Raised $78m from top investors to revolutionize the energy industry

Technology, Information and Internet 馃嚞馃嚙 London 445 2022
49
Cubico Sustainable Investmentscubicoinvest.com

Develops, constructs, and operates renewable energy projects globally, including wind, solar, and transmission lines, committed to clean energy transition and stable returns.

Renewable Energy Power Generation 馃嚞馃嚙 London 435 2015
50
So Energyso.energy

Provides 100% renewable electricity, powering homes, and offering solar and electric vehicle charging solutions. Prioritizes simplicity and sustainability.

Utilities 馃嚞馃嚙 London 427 2015
51
Engelhartectp.com

An international commodity trading company founded in 2013, focused on providing liquidity and price discovery to support sustainable economic development

Financial Services 馃嚞馃嚙 London 416 2013
52
Navigator Gasnavigatorgas.com

A leading shipping company with the world's largest fleet of liquefied gas carriers, providing international transportation and distribution of LPG, petrochemical gases, and ammonia

Maritime Transportation 馃嚞馃嚙 London 408 1997
53
bp pulsebppulse.com

Delivers reliable and effortless electric vehicle charging solutions for drivers and fleets, changing how the world moves at various locations.

Appliances, Electrical, and Electronics Manufacturing 馃嚞馃嚙 London 382 2008
54
Zenob膿zenobe.com

Increases renewable power, accelerates electric fleets, and extends EV battery life by repurposing for various portable power applications, minimizing costs and maximizing sustainability.

Services for Renewable Energy 馃嚞馃嚙 London 354 2017
55
Luceco Groupluceco.com

Manufacturing and distributing LED lighting products, EV chargers, wiring devices, circuit protection, portable power solutions, and audio-visual accessories for various global industries.

Appliances, Electrical, and Electronics Manufacturing 馃嚞馃嚙 London 351 1952
56
Glencore UKglencore.com

Global natural resource company involved in sourcing commodities essential for modern life, including oil trading, production, and strategic investments in handling and storage facilities

Oil and Gas 馃嚞馃嚙 London 321 n/a
57
Mitsui Bussan Commoditiesmitsuibussancommodities.com

Specializes in trading and marketing commodity derivatives for energy, metals, and steel, providing risk management and market expertise.

Financial Services 馃嚞馃嚙 London 311 1991
58
Ohmeohme-ev.com

An end-to-end electric charging solutions provider for homes, businesses, and on-the-go, supporting the global transition to renewables

Appliances, Electrical, and Electronics Manufacturing 馃嚞馃嚙 London 310 2017
59
INTEC Energy Solutionsin-tecenergy.com

INTEC Energy Solutions develops and constructs high-quality turnkey solar power plants globally, offering EPC, O&M services, and cutting-edge smart energy solutions for a sustainable future

Renewable Energy Semiconductor Manufacturing 馃嚞馃嚙 London 304 n/a
60
UK Power Networks Servicesukpowernetworksservices.co.uk

The company provides innovative energy solutions for resilience, cost efficiency, and sustainability, enabling clients to navigate the energy transition and decentralization

Utilities 馃嚞馃嚙 London 293 n/a
61
Petroineos Trading Limitedpetroineos.com

Integrated energy trading company supplying crude oil to refineries, trading crude and refined products, operating refineries in Scotland and France.

Oil and Gas 馃嚞馃嚙 London 290 n/a
62
VPIvpi.co.uk

A leading UK and Ireland power company with 35GW capacity, focusing on optimizing assets, developing new energy projects, and achieving net zero emissions Partner in Humber Zero

Utilities 馃嚞馃嚙 London 286 n/a
63
Low Carbonlowcarbon.com

Development and operation of renewable energy projects aiming to achieve net-zero emissions and contribute significantly to climate change mitigation.

Renewable Energy Power Generation 馃嚞馃嚙 London 231 2011
64
Equitixequitix.com

Responsible investor developing and managing global infrastructure assets, contributing to communities. Employs 200 professionals, manages 360 assets in 20 countries, $12bn AUM.

Financial Services 馃嚞馃嚙 London 223 2007
65
Javelin Global Commoditiesjavelincommodities.com

Global commodities marketing, trading, logistics, financing, and advisory company with expertise in bulk, steel, energy, green carbon, renewable fuels, and soft commodities Operating globally

Oil and Gas 馃嚞馃嚙 London 214 2015
66
Elginelgin.com

Develops, builds, owns, operates utility-scale solar and storage renewable energy assets across UK, Ireland, Germany, Italy, with a large project pipeline.

Renewable Energy Power Generation 馃嚞馃嚙 London 181 2009
67
ABF Sugarabfsugar.com

Production of sugar and diverse products including ethanol, animal feed, renewable power, and pharmaceutical ingredients from sugar cane and beet.

Food and Beverage Manufacturing 馃嚞馃嚙 London 180 1912
68
CFP Energycfp.energy

Providing energy and environmental solutions including carbon procurement, risk management, asset optimisation for industrial and commercial clients.

Services for Renewable Energy 馃嚞馃嚙 London 178 2006
69
Bulbbulb.co.uk

Supplier of 100% renewable electricity and carbon offset gas with transparent pricing and technology to help reduce energy use.

Utilities 馃嚞馃嚙 London 174 2014
70
Mitie Energymitie.com

Award-winning UK-based energy, utilities, and sustainability solutions provider offering independent end-to-end services to help clients achieve maximum efficiencies and cost-savings

Utilities 馃嚞馃嚙 London 151 2000
71
VEVvev.com

An end-to-end fleet electrification solution owned by a global energy leader, helping organizations reduce carbon emissions with integrated vehicle, charging, and power solutions

Services for Renewable Energy 馃嚞馃嚙 London 148 2023
72
ZTPztpuk.com

Provider of software and services for energy brokerage and management, offering cutting-edge solutions and support to major energy users in various sectors nationwide

Utilities 馃嚞馃嚙 London 140 2011
73
AMP Clean Energyampcleanenergy.com

An energy company providing practical solutions to address climate change and facilitate the transition to sustainable energy practices

Renewable Energy Power Generation 馃嚞馃嚙 London 130 2006
74
Hometreehometree.co.uk

providing installation, repair, and financing of low-carbon home energy hardware to help homeowners transition to net zero

Utilities 馃嚞馃嚙 London 129 2015
75
Genesis Energygenesisenergygroup.net

An Energy Infrastructure Development and Management company operating in Africa, with a focus on providing power solutions to unlock economic growth potentials

Renewable Energy Power Generation 馃嚞馃嚙 London 128 2005
76
Pacific Greenpacificgreen.com

Provides sustainable cleantech solutions, addressing climate warming, green energy, and resource scarcity through technological innovation and engineering solutions globally.

Services for Renewable Energy 馃嚞馃嚙 London 122 n/a
77
Connected Kerbconnectedkerb.com

An electric vehicle charging company dedicated to making charging inclusive, convenient, and reliable, while supporting sustainable mobility and future technologies #ConnectedForGood

Utilities 馃嚞馃嚙 London 120 2017
78
char.gychar.gy

Company offers public on-street electric vehicle charging solutions, primarily for UK households without off-street parking, aiming for convenient, reliable, and affordable access.

Services for Renewable Energy 馃嚞馃嚙 London 112 2016
79
Believbeliev.com

Building and operating reliable, accessible, and sustainable EV charging networks in the UK for communities, local authorities, landowners, and businesses, powered by 100% renewable energy.

Services for Renewable Energy 馃嚞馃嚙 London 110 2019
80
eEnergyeenergy.com

Funding and delivering energy-saving and energy-generating solutions across multi-site public sector and commercial portfolios, cutting energy waste, reducing operating costs, and improving building resilience.

Services for Renewable Energy 馃嚞馃嚙 London 105 2018
81
Highviewhighviewpower.com

Leading energy infrastructure business, uniting proprietary power systems analytics, world-class technologies, and strategic finance to build and operate grid-scale assets for clean energy goals.

Renewable Energy Power Generation 馃嚞馃嚙 London 104 2005
82
Cory Environmentalcoryenvironmental.co.uk

A leading UK recycling, waste management, and energy recovery company with over 100 years of experience managing 35 million tonnes annually Employing over 1,000 people nationwide

Utilities 馃嚞馃嚙 London 101 n/a
83
ev.energyev.energy

Connects people greener, cheaper, simpler EV charging; manages EV charging globally, transforming vehicles into flexible grid assets, benefiting providers, consumers, planet.

Software Development 馃嚞馃嚙 London 93 2018
84
Cummins Europecummins.com

Design, manufacture, and service advanced powertrain technologies including diesel, electric, hydrogen, and components for diverse industries across Europe.

Motor Vehicle Manufacturing 馃嚞馃嚙 London 90 1919
85
NextEnergy Capitalnextenergycapital.com

Specialist investment and asset manager in the solar sector, leading transition to clean energy through private and public investment platforms globally.

Investment Management 馃嚞馃嚙 London 86 2007
86
CARNOTcarnotengines.com

We develop highly efficient, zero emission powertrains for long-haul transport and off-grid power, aiming to reduce global CO2 emissions and accelerate the transition to net zero

Engines and Power Transmission Equipment Manufacturing 馃嚞馃嚙 London 84 2019
87
Quinbrookquinbrook.com

Specialist investment manager, focusing on infrastructure for energy transition. Conceives, develops, constructs, operates diverse innovative infrastructure projects and growth platforms.

Investment Management 馃嚞馃嚙 London 84 2015
88
Energy Driveenergydrivesystems.com

Energy Drive specializes in providing sustainable energy solutions for energy-intensive industries globally, reducing energy consumption through innovative technology and long-term partnerships

Energy Technology 馃嚞馃嚙 London 76 2011
89
Source - EVsource-ev.com

Builds safest, most reliable, accessible electric vehicle charging network across UK and Ireland, ensuring stress-free dependable charging experience for all drivers.

Climate Technology Product Manufacturing 馃嚞馃嚙 London 69 2024
90
Osprey Charging Networkospreycharging.co.uk

Funds, installs, and manages a UK-wide rapid electric vehicle charging network, powered by 100% renewable electricity, accepting various payment methods.

Electric Power Transmission, Control, and Distribution 馃嚞馃嚙 London 68 2011
91
Octopus Electroverseelectroverse.com

Octopus Electroverse provides a seamless charging experience with one card and app for electric vehicles, offering access to a vast network of global public chargers

Utilities 馃嚞馃嚙 London 67 2020
92
Innovainnova.co.uk

Developing, building, and operating utility-scale renewable energy projects with multi-technologies to take large energy users off-grid, benefiting communities.

Renewable Energy Power Generation 馃嚞馃嚙 London 64 2014
93
Nexta Capital Partnersnexta-capital.com

Originates, develops, finances, builds, and operates renewable infrastructure assets, combining technological and financial expertise for carbon neutrality.

Renewable Energy Power Generation 馃嚞馃嚙 London 60 2013
94
Transmission Investmenttinv.com

Investment, development, and management of electricity infrastructure assets, including offshore wind transmission and interconnectors, along with providing technical and commercial assurance for investors.

Renewable Energy Semiconductor Manufacturing 馃嚞馃嚙 London 58 n/a
95
Hypervolthypervolt.com

Leading provider of residential EV charging solutions, focusing on powerful software, design, and user experience to accelerate clean energy with smart tech.

Appliances, Electrical, and Electronics Manufacturing 馃嚞馃嚙 London 57 2021
96
Supercriticalsupercritical.solutions

Innovative company producing high pressure, ultra-efficient electrolyzers to generate pressurized green hydrogen at a low cost

Renewable Energy Equipment Manufacturing 馃嚞馃嚙 London 50 2020
97
Bluefield Partners LLPthebluefieldgroup.com

Investing in European renewable energy assets, including solar, wind, and battery storage, across various stages, managing significant assets under management.

Investment Management 馃嚞馃嚙 London 49 2009
98
South East London Community Energy (Selce)selce.org.uk

A not-for-profit co-operative specializing in renewable energy projects, energy efficiency, and community initiatives in South East London

Renewables & Environment 馃嚞馃嚙 London 34 2014
99
Zapgozapgo.co.uk

A UK-based electric vehicle charge point operator creating a Rapid and High Power Charger network in high traffic areas

Electric Power Transmission, Control, and Distribution 馃嚞馃嚙 London 31 n/a
100
The EV Networktheevnetwork.com

Develops, funds, builds, and owns ultrafast EV charging hubs across the UK, Europe, and USA, providing infrastructure as a service for landlords, operators, and fleets.

Energy Technology 馃嚞馃嚙 London 31 2017

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Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 24, 2026.

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