Company lists · Data refreshed September 2026

Top 25 Grid modernization technology startups based in the United Kingdom

Name: Grid modernization technology startups 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 82 companies tracked

RevenueBase identified 82 company matches for grid modernization technology startups associated with the United Kingdom as of September 2026 and tracks 6,880 professional contacts across them, including 2,790 with verified work emails. London is the largest hub.

This list covers company matches for grid modernization technology startups associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built

82Companies

6,880Contacts tracked

2,790Verified emails

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The 25 largest grid modernization technology startups based in the United Kingdom

Ranked by team size

Top 25 of 82 company matches for grid modernization technology startups based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Octopus Energy	Exact match	London, United KingdomHQ recorded Sep 20, 2026	1,001-5,000	3,989 contacts →
	Exact match “We're on a mission to make a big green dent in the universe by building a truly sustainable energy system globally.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2	Kaluza	Exact match	London, United KingdomHQ recorded Sep 20, 2026	501-1,000	595 contacts →
	Exact match “Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	EA Technology	Exact match	Chester, United KingdomHQ recorded Sep 20, 2026	201-500	317 contacts →
	Exact match “EA Technology provide innovative solutions for smarter planning, operations and investment decisions across electrical networks globally.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4	Correla	Exact match	Solihull, United KingdomHQ recorded Sep 20, 2026	201-500	293 contacts →
	Exact match “Correla exists because we dream of a simpler, greener society powered by our investment in innovation and our passion for customers.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5	Enoda LTD	Exact match	Edinburgh, United KingdomHQ recorded Sep 20, 2026	51-200	132 contacts →
	Exact match “ENODA’s world-class team are building the first truly decentralized, intelligent energy system that will reshape how we generate, store, and distribute energy.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	Amt-Sybex	Exact match	Oxfordshire, United KingdomHQ recorded Sep 20, 2026	51-200	120 contacts →
	Exact match “AMT-SYBEX has worked in the infrastructure and energy industries since 1990, witnessing many changes; from privatisation to deregulation, to smart energy and beyond.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7	Smarter Grid Solutions	Exact match	Glasgow, United KingdomHQ recorded Sep 20, 2026	51-200	111 contacts →
	Exact match “Smarter Grid Solutions is an enterprise energy software company with a unique end to end approach to Distributed Energy Resource Management Systems (DERMS) to deliver net zero…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8	Camlin Energy	Exact match	Lisburn, United KingdomHQ recorded Sep 20, 2026	501-1,000	108 contacts →
	Exact match “Empowering Your Tomorrow.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9	Arenko	Exact match	London, United KingdomHQ recorded Sep 20, 2026	51-200	68 contacts →
	Exact match “Arenko is a market leading technology provider enabling the clean energy transition.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	Reactive Technologies Limited	Exact match	London, United KingdomHQ recorded Sep 20, 2026	51-200	66 contacts →
	Exact match “Reactive Technologies (RTL) is a global Grid-Enhancing Technologies (GETs) company addressing the challenges of energy transition, electrification and accelerating load growth.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	Powerverse	Exact match	London, United KingdomHQ recorded Sep 20, 2026	11-50	50 contacts →
	Exact match “Powerverse is a smart energy management company committed to creating a more affordable, connected electric future.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	Assetcool	Exact match	Leeds, United KingdomHQ recorded Sep 20, 2026	51-200	49 contacts →
	Exact match “AssetCool is a UK deep-tech company delivering robotic grid upgrades that provide the fastest speed-to-power available today.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	ZOA	Exact match	London, United KingdomHQ recorded Sep 20, 2026	501-1,000	43 contacts →
	Exact match “We need intelligent technology to accelerate our path to net zero.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	Chameleon Technology UK LTD	Exact match	Harrogate, United KingdomHQ recorded Sep 20, 2026	11-50	37 contacts →
	Exact match “Chameleon Technology is a visionary smart technology solutions company, pioneering smart devices since 2010.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15	AMP X	Exact match	London, United KingdomHQ recorded Sep 20, 2026	51-200	35 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	Ionate	Exact match	London, United KingdomHQ recorded Sep 20, 2026	11-50	31 contacts →
	Exact match “IONATE is a deep-tech innovator building the technology backbone for smart electricity grids.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	Nortech Management LTD	Exact match	Evesham, United KingdomHQ recorded Sep 20, 2026	11-50	24 contacts →
	Exact match “Nortech supply specialist monitoring technology products and services to utilities, generators and system integrators.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	Open Energi	Exact match	London, United KingdomHQ recorded Sep 20, 2026	11-50	18 contacts →
	Exact match “Open Energi, a bp Company create advanced technology to deliver an affordable, zero carbon energy future.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19	Oaktree Power	Exact match	London, United KingdomHQ recorded Sep 20, 2026	11-50	17 contacts →
	Exact match “OakTree Power is the leading climate technology provider headquartered in London.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20	Autonomous IOT	Exact match	Chapelhall, United KingdomHQ recorded Sep 20, 2026	11-50	14 contacts →
	Exact match “Delivering technology solutions that encompass cutting-edge security, lighting, communication and sensing systems.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21	enee.io	Exact match	Manchester, United KingdomHQ recorded Sep 20, 2026	1-10	14 contacts →
	Exact match “enee.io increases access to reliable and affordable energy by improving the life and efficiency of energy systems.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22	Orbit Energy	Exact match	London, United KingdomHQ recorded Sep 20, 2026	1-10	13 contacts →
	Exact match “You sweat the good stuff.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23	Camion	Exact match	London, United KingdomHQ recorded Sep 20, 2026	1-10	12 contacts →
	Exact match “Every building will generate and store energy.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24	Smpnet	Exact match	London, United KingdomHQ recorded Sep 20, 2026	1-10	11 contacts →
	Exact match “SMPnet’s Omega technology suite is a core platform for advanced power system optimisation and control across modern energy networks.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25	Electryone AI	Exact match	London, United KingdomHQ recorded Sep 20, 2026	1-10	8 contacts →
	Exact match “We transform energy from a static resource into a living, intelligent network where every device, installer, and user contributes and benefits.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “grid modernization technology startups”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 82 grid modernization technology startups based in the United Kingdom

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Grid modernization technology startups based in the United Kingdom at a glance

As of Sep 20, 2026

40.6%Verified-email coverage

83.9Average contacts per company

11-50Median size (employees)

36.6%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 82 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with the United Kingdom whose business descriptions match “grid modernization technology startups” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 2,790 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “grid modernization technology startups”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many grid modernization technology startups are there based in the United Kingdom?

RevenueBase identified 82 company matches for grid modernization technology startups associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Octopus Energy tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most grid modernization technology startups?

London leads with 30 company records, followed by Edinburgh (3) and Bolton (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,790 professional contacts with verified work emails tracked across these 82 companies; direct dials are available where recorded.

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 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.