Company lists · Data refreshed September 2026

Top 21 Gas utility software companies based in the United Kingdom

RevenueBase identified 41 gas utility software companies headquartered in the United Kingdom as of September 2026 and tracks 1,150 professional contacts across them, including 594 with verified work emails and 72 with mobile numbers. London is the largest hub.

This list covers gas utility software 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 3, 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 Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review
41Companies
1,150Contacts tracked
594Verified emails
72Mobile numbers
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The 21 largest gas utility software companies based in the United Kingdom

Ranked by team size
Top 21 of 41 gas utility software companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names gas utility software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Terranova SoftwareStrong evidence
Leamington Spa, United Kingdom201-500363

“Since 2001 Terranova has gone on to become a leading software supplier into the utility sector.”

Source: company website · checked Sep 3, 2026
2
Amt-SybexIndirect evidence
United Kingdom51-200120

“AMT-SYBEX has worked in the infrastructure and energy industries since 1990, witnessing many changes; from privatisation to deregulation, to smart energy and beyond.”

Source: company website · checked Sep 3, 2026
3
POWWRStrong evidence
Manchester, United Kingdom51-200117

“POWWR is a cloud-based software provider for the energy and utilities sector.”

Source: company website · checked Sep 3, 2026
4
GMSLStrong evidence
Cambridge, United Kingdom51-20077

“GMSL are the market leaders in software and 24/7 operations for gas and power companies across Europe.”

Source: company website · checked Sep 3, 2026
5
Flui TechnologiesStrong evidence
Wallingford, United Kingdom51-20065

“We are the leading provider of critical utilities and infrastructure software in the UK & I.”

Source: company website · checked Sep 3, 2026
6
CNG EnergyPartial evidence
Harrogate, United Kingdom201-50056

“CNG is known as one of the most trusted suppliers of gas for SMEs, but we’re about so much more than supplying energy: we give power.”

Source: company website · checked Sep 3, 2026
7
MethodiaStrong evidence
London, United Kingdom51-20053

“Methodia is a software development company, which specializes in Business-as-a-Service (BaaS) and Software-as-a-Service (SaaS) solutions designed for utility retailers.”

Source: company website · checked Sep 3, 2026
8
ST Clements ServicesStrong evidence
Daventry, United Kingdom11-5053

“St Clements is a leading specialist supplier of software products and development services to the UK Utilities industry.”

Source: company website · checked Sep 3, 2026
9Tostock Bury St. Edmunds, United Kingdom51-20031

“Wheatley Software Solutions is a UK based pioneering software company providing innovative products to the utility metering industry.”

Source: company website · checked Sep 3, 2026
10
UtilidexStrong evidence
London, United Kingdom11-5028

Utilidex delivers a range of integrated energy software products supporting end customers, consultants and energy suppliers/generators for data management, billing, trading…”

Source: company website · checked Sep 3, 2026
11
Ambrit LTDStrong evidence
Dunstable, United Kingdom11-5013

“Ambrit is a leading provider of software solutions for the oil and gas industry.”

Source: company website · checked Sep 3, 2026
12
Utilityclick UKStrong evidence
West Malling, United Kingdom11-5013

UtilityClick is a Software Company offering industry-leading cloud-based solutions to the energy sector.”

Source: company website · checked Sep 3, 2026
13
Ceres Energy LimitedIndirect evidence
Hexham, United Kingdom11-5013

“Ceres is a growing company whose core business is secured by long term fee for service contracts.”

Source: company website · checked Sep 3, 2026
14
Seaglass Cloud TechnologyPartial evidence
Oxford, United Kingdom11-5012

“At Seaglass Cloud Technology we design, develop and integrate cloud-based software for the energy industry.”

Source: company website · checked Sep 3, 2026
15Worcester, United Kingdom11-509

“Datamere Software are utility software specialists and are the driving force behind the design and development of one of the UK's leading utility applications - GENUS©.”

Source: company website · checked Sep 3, 2026
16
Pietro Fiorentini UKPartial evidence
Warwick, United Kingdom11-505

“Pietro Fiorentini is a world leader with a long history in the field of Gas and Oil Management.”

Source: company website · checked Sep 3, 2026
17
Gasworld IntelligencePartial evidence
Blackwater, United Kingdom11-505

“Using combined knowledge and material spanning over 20 years, a unique worldwide capacity database has been collated consisting of ASU’s, hydrogen, CO2 and other gas production…”

Source: company website · checked Sep 3, 2026
18
Opal GAS LimitedPartial evidence
Harrogate, United Kingdom1-104

“Opal Gas is a commercial gas supplier based in the heart of North Yorkshire.”

Source: company website · checked Sep 3, 2026
19Manchester, United Kingdom11-504

“We were formed in April 1995 by four former British Gas Managers initially providing consultancy and custom solution development into the Utilities market.”

Source: company website · checked Sep 3, 2026
20
EnpaasPartial evidence
Colchester, United Kingdom51-2001

“Enpaas (Energy Platform As A Service) We’re changing the way energy companies run their business with the world’s only fully digital Software-as-a-Service (SaaS) platform and…”

Source: company website · checked Sep 3, 2026
21
Peritum GAS EngineeringPartial evidence
Glasgow, United Kingdom1-101

Gas industry experts.”

Source: company website · checked Sep 3, 2026

Showing 21 of 41 gas utility software companies based in the United Kingdom

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Gas utility software companies based in the United Kingdom at a glance

As of Sep 3, 2026
11-50Median size (employees)
LondonLargest hub · 4 HQs
72Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

1-10
10
11-50
17
51-200
10
201-500
3

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 gas utility software 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 “gas utility software 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 gas utility software 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, 594 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 3, 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.

Frequently asked

How many gas utility software companies are there based in the United Kingdom?

RevenueBase identified 41 gas utility software 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?

Terranova Software, headquartered in Leamington Spa, tops this list with the largest team on record.

Which city has the most gas utility software companies?

London leads with 4 headquartered companies, followed by Manchester (2) and Oxford (2).

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 594 verified decision-maker contacts tracked across these 41 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 3, 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.