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Top Utilities Companies in London (43)

Comcast
Digital Media • Information Technology • News + Entertainment
18 Offices
115,000 Employees
94 Benefits Hiring Now
Come to Comcast and bring connection to life.

Welcome to Comcast. From the connectivity and platforms we provide to the content and experiences we create, we bring people together, globally. Our people think the world of our work, and that’s why our work is the best in the world.

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Comcast

Comcast's Top Stability & Growth Strengths

Healthy Cash Flow: Operating cash flow increased from $27.7 billion in 2024 to $33.6 billion in 2025, and Q2 2026 free cash flow was $4.6 billion, up 2.3% year over year. This indicates strong cash generation despite uneven top-line trends.

Diversified Revenue Streams: Connectivity revenue rose 4.2% to $46.0 billion in 2025 alongside growth in business services (to $10.2 billion), wireless lines (to 9.3 million), Peacock (revenue up 10% to $5.4 billion; paid subs up 22% to 44 million), and parks. Comcast also highlights six growth drivers—broadband, wireless, business services, studios, streaming, and parks—that represented about 60% of 2025 revenue.

Product Line Growth: Wireless and streaming scaled meaningfully, with approximately 1.5 million wireless line additions in 2025 and Peacock reaching 44 million paid subscribers that year and achieving first-time quarterly profitability in Q2 2026. Business services connectivity also expanded in 2026, including Q2 revenue up 3.7% and EBITDA up 5.0%.

Ciena
Cloud • Hardware • Internet of Things • Other • Software • Utilities
22 Offices
9,561 Employees
51 Benefits Hiring Now
Ciena is a networking systems, services, and software company.

Ciena (NYSE: CIEN) is a global leader in networking systems, services, and software. We build the world’s most adaptive networks to enable our customers to deliver richer, more connected experiences for all users. At our core, Ciena is a company rooted in people. We prioritize deep, collaborative relationships within our teams and alongside our customers, partners, and communities around the...

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Ciena

Ciena's Top Stability & Growth Strengths

Strong Market Position & Advantage: Ciena is positioned as a top-tier optical networking vendor with leadership in coherent optics and data-center interconnect, supported by repeated references to being among the top global providers and particularly strong in North America.

Strong Revenue Growth: Recent results indicate a clear acceleration in revenue, with fiscal-year and quarterly figures described as up strongly year over year and forward guidance projecting continued expansion into the next fiscal year.

Future-Ready Strategy: The company is described as aligned to long-cycle demand drivers—AI, cloud, and 5G—and is focusing its portfolio “in and around the data center,” including prioritizing AI-centric optical platforms and related capabilities.

VEOLIA UK LIMITED
Greentech • Energy • Utilities • Industrial
71 Offices
215,000 Employees

Veolia UK (part of the Veolia group) provides environmental services including water and wastewater treatment, waste and resource management, and local energy solutions. The company designs decarbonization and resource-regeneration solutions for municipal and industrial customers, focusing on sustainability, pollution control and efficient management of critical resources.

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VEOLIA UK LIMITED
Cory Group
Greentech • Logistics • Energy • Utilities
London
400 Employees
Hiring Now

Cory Group is one of the UK's leading recycling and waste management companies. They provide services to ensure London has a safe, clean, and sustainable way of managing its recyclable and non-recyclable waste. The company operates critical infrastructure, including energy-from-waste facilities such as Riverside 2, contributing to London's waste management and energy generation needs.

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Cory Group
Hometree
Appliances • Utilities
London
98 Employees
Hiring Now

Hometree is a home energy services company on a mission to accelerate the transition to net zero. By fixing, installing and financing home energy hardware, we're helping homeowners transition to low-carbon living, when they’re ready. Heating is responsible for 14% of all greenhouse gas emissions in the UK. If we're serious about hitting those net zero goals to mitigate the...

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Hometree
Vattenfall AB
Greentech • Energy • Utilities • Renewable Energy
14 Offices
21,301 Employees
Hiring Now

Vattenfall is a leading European energy company and a Swedish multinational power company owned by the Swedish state. As one of Europe's largest producers and retailers of electricity and heat, it generates, distributes, and sells energy across several markets. Vattenfall is committed to driving the transition toward a fossil-free energy system and enabling the fossil freedom that drives society forward.

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Vattenfall AB
Veolia
Greentech • Other • Energy • Utilities • Industrial
34 Offices
50,037 Employees

Veolia, a global leader in environmental services, works every day to build environmental security for the benefit of public health and the competitiveness of industries and regions. With 215,000 employees across five continents, working closely with local communities, and thanks to its cutting-edge technologies, the group cleans up pollution, reduces carbon emissions, and regenerates resources through concrete solutions that combine...

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Veolia

Veolia's Top Stability & Growth Strengths

Profitability: Profitability is rising, with EBITDA up 6.3% in 2025 alongside a 70 bps margin expansion and further EBITDA and margin gains in the first half of 2026. Guidance was raised to at least +8% current net income growth for 2026, signaling continued momentum.

Market Expansion: Market expansion is evident in North America, where the 2026 Clean Earth acquisition doubled the U.S. hazardous‑waste business and lifted pro forma U.S. revenue to about $6.3B with targeted synergies. Additional moves such as the Icetec acquisition and a new Boston HQ reinforce the scale‑up under the GreenUp strategy.

Strong Market Position & Advantage: Strong market position is reinforced by repeated No. 1 rankings on ENR’s Top 200 Environmental Firms and characterizations as the world’s largest environmental‑services company. The post‑Suez combination and faster‑growing boosters in water technologies and hazardous waste further consolidate this advantage.

Perse
Energy • Utilities
London
30 Employees

Data services to quantify historical energy and carbon profiles, plus predict and reconcile any energy or carbon transaction. Enabling homes, businesses and vehicles to transition to net zero faster and at a lower cost.

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Perse
Gismart
Fitness • Mobile • Music • Utilities
3 Offices
375 Employees
Hiring Now

Gismart is a London-headquartered mobile app developer focused on Health & Wellness, Utilities, and Music apps. It has surpassed 1 billion downloads worldwide and employs more than 350 people. Its mission is to support customers’ self-improvement and cultivate well-being globally, with a reach across Europe and beyond. The company also develops products such as FitMe, a home-fitness app offering short,...

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Gismart
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Guru Systems
Utilities
London
38 Employees

Guru Systems creates intelligent technology to make energy systems more transparent, lower cost and lower carbon. We provide market-leading hardware and data analytics platforms for heat networks, gas boilers and heat pumps. Our technology improves the performance of these systems for residential developers, heat suppliers, customers and our planet. Moving to low-carbon heat is the biggest challenge in the transition...

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Guru Systems
Petroineos
Logistics • Energy • Utilities • Manufacturing
2 Offices
475 Employees
Hiring Now

Petroineos is a joint venture between PetroChina International London and INEOS Group, established in 2011. It operates as an integrated refining and energy trading company, processing crude oil and trading a comprehensive range of energy products globally. The company focuses on quality, safety, and sustainability, with key assets including refineries and distribution terminals that support its trading and refining activities...

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Petroineos
Telstra
Utilities
34 Offices
10,000 Employees
10 Benefits

We believe it’s people who give purpose to our technology. So we’re committed to staying close to our customers and providing them the best experience. And delivering the best tech. On the best network. Because our purpose is to build a connected future so everyone can thrive. We build technology and content solutions that are simple and easy to use, including...

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Telstra
Drax Group
Greentech • Energy • Utilities • Renewable Energy
6 Offices
3,400 Employees
1 Benefits

Drax is enabling a zero carbon, lower cost energy future Drax Group is a renewable energy company engaged in renewable power generation, the production of sustainable biomass and the sale of renewable electricity to businesses. Drax operates a generation portfolio of sustainable biomass, hydro-electric and pumped hydro storage assets across four sites in England and Scotland. It is the UK’s largest source...

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Drax Group
Connect Fibre
Utilities • Infrastructure as a Service (IaaS)
London
138 Employees

Connect Fibre uses only the latest Full Fibre and Wi-Fi 6 technology to provide reliable Hyperfast broadband up to 1000Mbps to homes and businesses in the UK.

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Connect Fibre
SSE
Greentech • Energy • Utilities • Renewable Energy
18 Offices
12,000 Employees
3 Benefits

The UK & Ireland's clean energy champion. We’re investing more than ever before in a cleaner, more affordable and more secure energy system. We are creating and supporting thousands of good jobs. We power change.

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SSE
Edelman Heating, Cooling, Plumbing, Electric & Solar
Energy • Utilities • Solar • Renewable Energy
59 Offices
50 Employees

Edelman Heating, Cooling, Plumbing, Electric & Solar is a family-owned business that has provided high-quality HVAC, plumbing, electrical, and solar solutions to homes and businesses across Illinois and Wisconsin for over 20 years. Specializing in installation, repair, and maintenance, they employ NATE-certified technicians and are committed to 100% customer satisfaction, ensuring reliable home comfort services for their residential and commercial...

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Edelman Heating, Cooling, Plumbing, Electric & Solar
Brook Green Solutions Limited
Energy • Utilities
London
75 Employees

Brook Green Solutions Limited (trading as Brook Green Supply) is a UK-based provider of sustainable energy solutions. The company specializes in optimizing energy contracts for commercial and industrial sectors, offering tailored electricity and gas supply solutions, renewable energy certificates, and decarbonization services to help businesses minimize costs, enhance operational efficiency, and transition to a decarbonized future.

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Brook Green Solutions Limited
Sterlite Technologies
11 Offices
6,600 Employees

STL is a leading global optical and digital solutions company providing advanced offerings to build 5G, Rural, FTTx, Enterprise and Data Centre networks. The company, driven by its purpose of ‘Transforming Billions of Lives by Connecting the World’, designs and manufactures in 4 continents with customers in more than 100 countries. Telecom operators, cloud companies, citizen networks, and large enterprises...

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Sterlite Technologies
Homeshift
Software • Utilities
London
15 Employees

We're reinventing home utility services by treating our customers with complete fairness and transparency and delivering the simplest, most beautiful way of managing home bills. Our online process allows you to combine your energy, internet, insurance, council tax, and water services into a single cheaper Homeshift bill, all in the time it takes to make a cup of tea! We also...

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Homeshift
Aggreko
Utilities
4 Offices
7,898 Employees
19 Benefits Hiring Now

Welcome to the Aggreko LinkedIn page. As the global leader in temporary power, temperature control and energy solutions, we enable our customers to achieve their goals through a range of innovative, flexible, class-leading modular solutions. Utilising the latest technologies, we combine innovative thinking with our sector knowledge to deliver the best results; where, when and for as long as needed. Are...

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Aggreko

Aggreko's Top Stability & Growth Strengths

Strong Market Position & Advantage: Independent industry coverage repeatedly characterizes Aggreko as the world’s largest temporary/mobile power provider, with marquee deployments such as multiple Olympic Games underscoring execution at scale. Its multi‑gigawatt rental fleet and broad international footprint support rapid mobilization for complex, multi‑site projects.

Strong Revenue Growth: Recent annual results reports indicate double‑digit increases in revenue and EBITDA, signaling solid top‑line and profit momentum. Data centers have quickly become a meaningful and fast‑growing contributor to the mix, reinforcing near‑term growth.

Future-Ready Strategy: The company is scaling lower‑emission offerings—Tier 4 Final generators, hybrid microgrids, and battery energy storage systems—and launched new BESS products, indicating commitment to cleaner, modular power. A dedicated Energy Transition Solutions unit and targeted acquisitions in distributed energy align the portfolio to secular demand shifts.

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