Company lists · Data refreshed September 2026
Top 25 Real-time energy analytics companies based in the United Kingdom
RevenueBase identified 129 real-time energy analytics companies headquartered in the United Kingdom as of September 2026 and tracks 1,585 professional contacts across them, including 813 with verified work emails and 116 with mobile numbers. London is the largest hub.
This list covers real-time energy analytics companies headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest real-time energy analytics companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 595 | ||||
“Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 108 | ||||
“Empowering Your Tomorrow.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 97 | ||||
“Best.Energy is a UK based company specialising in the measurement, control and reduction of energy consumption and costs within the industrial, commercial and public sectors.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 37 | ||||
“Chameleon Technology is a visionary smart technology solutions company, pioneering smart devices since 2010.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 34 | ||||
“Hark is an award-winning Energy Analytics and Industrial IoT company based in Leeds.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 31 | ||||
“At MPL, we define an Estate as the full network of client facilities contributing to overall energy use.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 24 | ||||
“Nortech supply specialist monitoring technology products and services to utilities, generators and system integrators.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 18 | ||||
“Clear insights, smarter spaces.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | VoltawareIndirect evidence | 16 | |||
“Voltaware is a start-up electricity monitoring company based in London.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | VoltvisionIndirect evidence | 15 | |||
“VoltVision digitises high and medium voltage industrial power networks, transforming raw power data into actionable information – improving operational efficiency and lowering…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 15 | ||||
“ONZO is a global leader in the creation of meaningful analytics and insight derived from Smart Meter consumption data.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 15 | ||||
“Flatpeak is the global energy data platform for connected devices.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 14 | ||||
“For over 18 years, Belltree has been delivering integrated energy analytics and consulting services to the global upstream energy industry.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 14 | ||||
“enee.io increases access to reliable and affordable energy by improving the life and efficiency of energy systems.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | The OAK NetworkPartial evidence | 14 | |||
“OAK Network digitally transforms the way businesses manage and control their energy consumption.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | KelvatekPartial evidence | 13 | |||
“For over two decades, Kelvatek has been working collaboratively across the UK & Irish Energy industry to accelerate network performance and drive a more sustainable future.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 13 | ||||
“NEO is a leader in data intelligence for asset management and equipment monitoring, offering innovative solutions that optimize energy consumption, maintenance, eliminate waste…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | Optima EnergyPartial evidence | 13 | |||
“Our advanced, automated technology delivers energy and sustainability data that sets new standards for Environmental, Social and Governance (ESG) reporting.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 12 | ||||
“Cap Energy installs bespoke, accessible energy monitors at a site & appliance level and provides incredible data on power usage.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 12 | ||||
“From energy consumption to utilisation statistics, engineer location to key task completion, our customisable platform gives you as much real-time data from your assets as you…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 11 | ||||
“Energy optimisation analytics that improve energy efficiency, optimise assets and prevent faults” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 11 | ||||
“Save significantly on energy costs and reduce your carbon footprint with zero capex, no installation, and no additional staff required.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 8 | ||||
“Elcomponent have been making sense of commercial and industrial energy management since 1986, providing specialist equipment and solutions for businesses to monitor their energy…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 8 | ||||
“We empower businesses to see when and where they spend their money on energy; with our intelligent energy meters and cloud analytics platform, businesses can itemise and reduce…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | Bender UK LimitedIndirect evidence | 7 | |||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 129 real-time energy analytics companies based in the United Kingdom
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Real-time energy analytics companies based in the United Kingdom at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among real-time energy analytics companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United Kingdom whose own description of what they do matches “real-time energy analytics companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among real-time energy analytics companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 813 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 5, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Real-time energy analytics companies by metro
- Real-time energy analytics companies in London37
Frequently asked
How many real-time energy analytics companies are there based in the United Kingdom?
RevenueBase identified 129 real-time energy analytics companies headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Kaluza, headquartered in London, tops this list with the largest team on record.
Which city has the most real-time energy analytics companies?
London leads with 37 headquartered companies, followed by Manchester (7) and Cambridge (5).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 813 verified decision-maker contacts tracked across these 129 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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