Company lists · Data refreshed September 2026

Top 25 Downstream petroleum IT services based in the United Kingdom

Name: Downstream petroleum IT services based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 265 companies tracked

RevenueBase identified 265 downstream petroleum IT services headquartered in the United Kingdom as of September 2026 and tracks 3,611 professional contacts across them, including 960 with verified work emails. London is the largest hub.

This list covers downstream petroleum IT services 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 28, 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 28, 2026 86% judged on-target in blind review

265Companies

3,611Contacts tracked

960Verified emails

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The 25 largest downstream petroleum IT services based in the United Kingdom

Ranked by team size

Top 25 of 265 downstream petroleum IT services based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to downstream petroleum IT services: 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	KBR Granherne	Indirect evidence	Leatherhead, United KingdomHQ checked Sep 28, 2026	501-1,000	648 contacts →
	Indirect evidence “KBR Consulting is one of the world's foremost engineering consultancies specializing in the hydrocarbon and energy industry.” Source: RevenueBase Database · checked Sep 28, 2026
2	Claxton Engineering Services	Indirect evidence	Great Yarmouth, United KingdomHQ checked Sep 28, 2026	201-500	279 contacts →
	Indirect evidence “Claxton, an AF Gruppen Company, combines decades of industry experience, proprietary technology, and exceptional service quality to cut through offshore installation and…” Source: RevenueBase Database · checked Sep 28, 2026
3	Aquaterra Energy	Indirect evidence	Norwich, United KingdomHQ checked Sep 28, 2026	51-200	167 contacts →
	Indirect evidence “Aquaterra Energy provides intelligently engineered products and services for well access and offshore developments - supporting efficient operations across the full life cycle of…” Source: RevenueBase Database · checked Sep 28, 2026
4	HTEC	Partial evidence	Southampton, United KingdomHQ checked Sep 28, 2026	201-500	119 contacts →
	Partial evidence “htec is now part of PDI, the leader in enterprise management software for the convenience retail and petroleum wholesale markets.” Source: RevenueBase Database · checked Sep 28, 2026
5	Hobark International Limited	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	113 contacts →
	Indirect evidence “Hobark International Limited (HIL) is an Integrated Services Company whose subsidiaries: DrillPet International Limited (DIL), Uniterm Nigeria Limited (UNL), UltiProc Nigeria…” Source: RevenueBase Database · checked Sep 28, 2026
6	Madic UK	Indirect evidence	Guildford, United KingdomHQ checked Sep 28, 2026	51-200	104 contacts →
	Indirect evidence “MADIC UK (formerly TLM technologies) is transforming convenience store and forecourts with technology solutions that significantly improve customer experience and enable faster…” Source: RevenueBase Database · checked Sep 28, 2026
7	AXIS	Indirect evidence	Aberdeenshire, United KingdomHQ checked Sep 28, 2026	51-200	94 contacts →
	Indirect evidence “Based in Aberdeen, Axis is an independent consultancy providing specialist Exploration and Production, Decommissioning and Low Carbon expertise to the global energy industry and…” Source: RevenueBase Database · checked Sep 28, 2026
8	Euro Petroleum Consultants	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	66 contacts →
	Indirect evidence “We are a leading independent consulting company with global expertise in Refining, Gas, Petrochemicals, Renewables, and Alternative Energies.” Source: RevenueBase Database · checked Sep 28, 2026
9	Mobility OIL & GAS Limited	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	48 contacts →
	Partial evidence “Mobility Oil & Gas provides comprehensive services to the oil and gas industry in the areas of Petroleum Engineering Consultancy and Technical Training.” Source: RevenueBase Database · checked Sep 28, 2026
10	Eurotank Service Group	Strong evidence	Sowerby Bridge, United KingdomHQ checked Sep 28, 2026	51-200	44 contacts →
	Strong evidence “Eurotank Service Group is a nationwide specialist contractor/consultant to the downstream petroleum industry.” Source: RevenueBase Database · checked Sep 28, 2026
11	Geologix	Indirect evidence	Norwich, United KingdomHQ checked Sep 28, 2026	11-50	41 contacts →
	Indirect evidence “Geologix has been a leading technology and engineering application development company since 1994, focused on providing innovative and reliable solutions for well monitoring…” Source: RevenueBase Database · checked Sep 28, 2026
12	OSL Consulting Engineers	Indirect evidence	Hull, United KingdomHQ checked Sep 28, 2026	51-200	41 contacts →
	Indirect evidence “OSL is a multi-disciplined team of creative, forward thinking technical specialists, working collaboratively with the energy and related sectors to provide quality implemented…” Source: RevenueBase Database · checked Sep 28, 2026
13	Tracs International	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 28, 2026	51-200	37 contacts →
	Indirect evidence “TRACS International Limited (TRACS) was founded in 1992 to provide training and consultancy services to the upstream energy industry.” Source: RevenueBase Database · checked Sep 28, 2026
14	Gorevega	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 28, 2026	51-200	37 contacts →
	Indirect evidence “GoreVega supports the global oil and gas industry by providing valuable technical expertise for operators and service companies at each stage of a well’s lifecycle, from drilling…” Source: RevenueBase Database · checked Sep 28, 2026
15	Costain Upstream LTD	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 28, 2026	201-500	37 contacts →
	Indirect evidence “We provide innovative engineering and technology-led solutions to meet the needs of our customers.” Source: RevenueBase Database · checked Sep 28, 2026
16	Flotech Performance Systems	Indirect evidence	Chichester, United KingdomHQ checked Sep 28, 2026	11-50	35 contacts →
	Indirect evidence “Flotech Performance Systems is a manufacturer and turnkey solutions provider to the Petrochemical, Process and Energy sectors.” Source: RevenueBase Database · checked Sep 28, 2026
17	NMC Energy	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 28, 2026	11-50	31 contacts →
	Indirect evidence “NMC Energy is a dynamic and fast growing company at the forefront of the energy sector, building strong, collaborative partnerships with customers across the UK, Europe, and…” Source: RevenueBase Database · checked Sep 28, 2026
18	Eigen LTD	Indirect evidence	Leatherhead, United KingdomHQ checked Sep 28, 2026	11-50	29 contacts →
	Indirect evidence “Eigen \| We are digital problem solvers in Oil and Gas - Eigen was formed in 2007 following the successful delivery of a series of complex integration projects for an oil major in…” Source: RevenueBase Database · checked Sep 28, 2026
19	Gaffneycline	Indirect evidence	Farnham, United KingdomHQ checked Sep 28, 2026	51-200	29 contacts →
	Indirect evidence “GaffneyCline provides integrated technical and commercial consulting and independent advice on oil, gas and carbon management.” Source: RevenueBase Database · checked Sep 28, 2026
20	Fuelsoft Limited	Indirect evidence	Woodgate Business Park, United KingdomHQ checked Sep 28, 2026	11-50	25 contacts →
	Indirect evidence “Fuelsoft is a software vendor specialising in on premise and cloud based software solutions for the fuel distribution and fuel card industries.” Source: RevenueBase Database · checked Sep 28, 2026
21	Fleet OIL LTD	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 28, 2026	11-50	21 contacts →
	Indirect evidence “Fleet Oil Limited is a specialist Oilfield Chemistry Consultancy providing solutions to Oil Services companies and Production Operators globally.” Source: RevenueBase Database · checked Sep 28, 2026
22	Quorum	Partial evidence	Sedgefield, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Partial evidence “Delivering market-leading software, IT infrastructure, and advice for businesses involved in the energy market.” Source: RevenueBase Database · checked Sep 28, 2026
23	Jemmac Software LTD	Indirect evidence	Cranfield, United KingdomHQ checked Sep 28, 2026	11-50	19 contacts →
	Indirect evidence “Overview: Jemmac provide software design and development services for a range of industries including Oil & Petrochemicals, Refining, Fleet Telematics, Office Services and…” Source: RevenueBase Database · checked Sep 28, 2026
24	Elixir Consultant UK	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 28, 2026	51-200	19 contacts →
	Indirect evidence “ELIXIR Consultants provide market leading state-of-the art consultancy support to the oil and gas and Petrochemical industries across all lifecycle stages – from appraise through…” Source: RevenueBase Database · checked Sep 28, 2026
25	Hydrovolve	Indirect evidence	Dyce, United KingdomHQ checked Sep 28, 2026	11-50	18 contacts →
	Indirect evidence “HydroVolve offers an integrated range of pioneering technology products and services across the well lifecycle – all designed, engineered and manufactured inhouse by our dedicated…” Source: RevenueBase Database · checked Sep 28, 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: downstream petroleum IT services. 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 downstream petroleum IT services.
Partial evidence: Its own public description names part of downstream petroleum IT services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name downstream petroleum IT services. 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 265 downstream petroleum IT services based in the United Kingdom

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Downstream petroleum IT services based in the United Kingdom at a glance

As of Sep 28, 2026

26.6%Verified-email coverage

13.6Average contacts per company

1-10Median size (employees)

22.3%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

144

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 265 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 downstream petroleum IT services, 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 “downstream petroleum IT services”. 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 downstream petroleum IT services), 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 downstream petroleum IT services, 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, 960 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 28, 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.

Downstream petroleum IT services by metro

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 downstream petroleum IT services, 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 downstream petroleum IT services are there based in the United Kingdom?

RevenueBase identified 265 downstream petroleum IT services 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?

KBR Granherne, headquartered in Leatherhead, tops this list with the largest team on record.

Which city has the most downstream petroleum IT services?

London leads with 59 headquartered companies, followed by Aberdeen (40) and Edinburgh (7).

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 960 verified decision-maker contacts tracked across these 265 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 28, 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.