Company lists · Data refreshed September 2026

Top 25 Grid integration companies based in the United Kingdom

Name: Grid integration companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 240 companies tracked

RevenueBase identified 240 grid integration companies headquartered in the United Kingdom as of September 2026 and tracks 3,992 professional contacts across them, including 1,570 with verified work emails. London is the largest hub.

This list covers grid integration 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

240Companies

3,992Contacts tracked

1,570Verified emails

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The 25 largest grid integration companies based in the United Kingdom

Ranked by team size

Top 25 of 240 grid integration companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to grid integration companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Kaluza	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	501-1,000	595 contacts →
	Indirect evidence “Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination.” Source: RevenueBase Database · checked Sep 20, 2026
2	Brush Group	Partial evidence	Loughborough, United KingdomHQ checked Sep 20, 2026	501-1,000	367 contacts →
	Partial evidence “We support the global drive to net zero with innovative, engineered solutions that address grid resilience and systems challenges, facilitate electrification of transport and…” Source: RevenueBase Database · checked Sep 20, 2026
3	Intec Energy Solutions	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	501-1,000	242 contacts →
	Indirect evidence “INTEC Energy Solutions delivers best-in-class services in Engineering, Procurement, Construction (EPC), Battery Energy Storage Systems (BESS), Manufacturing, Project Development…” Source: RevenueBase Database · checked Sep 20, 2026
4	Myenergi	Indirect evidence	Stallingborough, United KingdomHQ checked Sep 20, 2026	201-500	168 contacts →
	Indirect evidence “We give you control of your generated green energy, creating the ultimate eco-smart home.” Source: RevenueBase Database · checked Sep 20, 2026
5	TNEI	Indirect evidence	Manchester, United KingdomHQ checked Sep 20, 2026	51-200	150 contacts →
	Indirect evidence “TNEI is an independent specialist energy consultancy providing technical, strategic, environmental and consenting advice to organisations operating within the conventional and…” Source: RevenueBase Database · checked Sep 20, 2026
6	Enoda LTD	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 20, 2026	51-200	132 contacts →
	Indirect evidence “ENODA’s world-class team are building the first truly decentralized, intelligent energy system that will reshape how we generate, store, and distribute energy.” Source: RevenueBase Database · checked Sep 20, 2026
7	Powersystems	Indirect evidence	Bristol, United KingdomHQ checked Sep 20, 2026	51-200	126 contacts →
	Indirect evidence “Powered by People.” Source: RevenueBase Database · checked Sep 20, 2026
8	Belectric UK Member Of Elevion Group	Indirect evidence	Brinkworth, United KingdomHQ checked Sep 20, 2026	51-200	95 contacts →
	Indirect evidence “BELECTRIC UK is part of BELECTRIC, one of Europe's leading EPC service providers in the development, construction, and operation of solar power plants.” Source: RevenueBase Database · checked Sep 20, 2026
9	Highview	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	79 contacts →
	Indirect evidence “Highview is a leading energy infrastructure business.” Source: RevenueBase Database · checked Sep 20, 2026
10	Arenko	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	68 contacts →
	Indirect evidence “Arenko is a market leading technology provider enabling the clean energy transition.” Source: RevenueBase Database · checked Sep 20, 2026
11	Reactive Technologies Limited	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	66 contacts →
	Partial evidence “Reactive Technologies (RTL) is a global Grid-Enhancing Technologies (GETs) company addressing the challenges of energy transition, electrification and accelerating load growth.” Source: RevenueBase Database · checked Sep 20, 2026
12	Kelvin Power Member Of Vinci Energies	Indirect evidence	Leicester, United KingdomHQ checked Sep 20, 2026	51-200	57 contacts →
	Indirect evidence “Kelvin Power provides expert advice and design solutions to the global power industry and the renewable energy sector.” Source: RevenueBase Database · checked Sep 20, 2026
13	Ecolution Group	Indirect evidence	Trottiscliffe, United KingdomHQ checked Sep 20, 2026	51-200	55 contacts →
	Indirect evidence “Renewable Energy Experts: For over 25 years, Ecolution have been at the forefront of renewable energy services, using our award-winning expertise, to help our clients innovate and…” Source: RevenueBase Database · checked Sep 20, 2026
14	PICLO	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	45 contacts →
	Indirect evidence “Piclo is the world’s leading independent marketplace for energy flexibility.” Source: RevenueBase Database · checked Sep 20, 2026
15	AMP X	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	35 contacts →
	Partial evidence “Amp X delivers an innovative digital energy platform providing grid software services holistically addressing the challenges associated with the energy transition at the edge of…” Source: RevenueBase Database · checked Sep 20, 2026
16	Ionate	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	31 contacts →
	Partial evidence “IONATE is a deep-tech innovator building the technology backbone for smart electricity grids.” Source: RevenueBase Database · checked Sep 20, 2026
17	Olympus Power LTD	Indirect evidence	Exeter, United KingdomHQ checked Sep 20, 2026	11-50	31 contacts →
	Indirect evidence “Zero Carbon Together means we're helping you own your energy.” Source: RevenueBase Database · checked Sep 20, 2026
18	B&s Group LTD	Indirect evidence	Chester, United KingdomHQ checked Sep 20, 2026	11-50	29 contacts →
	Indirect evidence “B&S Group is an innovative, high growth engineering business delivering full-service solutions for power and renewable energy networks.” Source: RevenueBase Database · checked Sep 20, 2026
19	M.P.E. Power System Consultants	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence “M.P.E.” Source: RevenueBase Database · checked Sep 20, 2026
20	Renewable Exchange	Indirect evidence	Bristol, United KingdomHQ checked Sep 20, 2026	11-50	24 contacts →
	Indirect evidence “The conventional way of trading renewable energy is outdated.” Source: RevenueBase Database · checked Sep 20, 2026
21	Switchon Power	Indirect evidence	Stourbridge, United KingdomHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “SwitchOn Power is a specialized engineering company, focusing on renewable energy generation projects.” Source: RevenueBase Database · checked Sep 20, 2026
22	Utilligence LTD	Partial evidence	Haywards Heath, United KingdomHQ checked Sep 20, 2026	51-200	19 contacts →
	Partial evidence “Utilligence is a leading consultancy in net zero solutions, supporting companies and grid operators in their journey to decarbonise the power we depend on.” Source: RevenueBase Database · checked Sep 20, 2026
23	Roadnight Taylor Certified B Corp	Partial evidence	Burford, United KingdomHQ checked Sep 20, 2026	1-10	19 contacts →
	Partial evidence “Complex electricity grid connection challenges can derail critical infrastructure projects worth hundreds of millions.” Source: RevenueBase Database · checked Sep 20, 2026
24	Elite Renewables	Partial evidence	Croydon, United KingdomHQ checked Sep 20, 2026	11-50	19 contacts →
	Partial evidence “SUSTAINABLE SYSTEMS FOR THE FUTURE We’re on a mission to make sustainable power accessible with the design and integration of innovative solutions that empower our clients to…” Source: RevenueBase Database · checked Sep 20, 2026
25	Envirolec Smart Energy Solutions	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	17 contacts →
	Indirect evidence “With over 70 years combined industry experience, Envirolec Smart Energy Solutions has gained vital expertise and experience in a number of Renewable Technologies.” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: grid integration companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names grid integration companies.
Partial evidence: Its own public description names part of grid integration companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name grid integration companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 240 grid integration companies based in the United Kingdom

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Grid integration companies based in the United Kingdom at a glance

As of Sep 20, 2026

39.3%Verified-email coverage

16.6Average contacts per company

1-10Median size (employees)

23.3%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

129

11-50

51-200

201-500

501-1,000

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 240 companies.

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 grid integration companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 “grid integration companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names grid integration companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among grid integration 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 its RevenueBase Smart Search 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, 1,570 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 20, 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.

Grid integration companies by metro

Grid integration companies in London56

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names grid integration companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many grid integration companies are there based in the United Kingdom?

RevenueBase identified 240 grid integration 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 grid integration companies?

London leads with 56 headquartered companies, followed by Glasgow (6) and Nottingham (6).

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 1,570 verified decision-maker contacts tracked across these 240 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 20, 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 Smart Search, 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.