Company lists · Data refreshed September 2026

Top 25 Oil and gas consulting firms based in the United Kingdom

RevenueBase identified 743 oil and gas consulting firms headquartered in the United Kingdom as of September 2026 and tracks 39,056 professional contacts across them, including 10,849 with verified work emails and 4,652 with mobile numbers. London is the largest hub.

This list covers oil and gas consulting firms 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
743Companies
39,056Contacts tracked
10,849Verified emails
4,652Mobile numbers
Unlock all 743 companies Free signup · no credit card · 500 free credits

The 25 largest oil and gas consulting firms based in the United Kingdom

Ranked by team size
Top 25 of 743 oil and gas consulting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names oil and gas consulting firms: 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
WOODPartial evidence
Aberdeen, United KingdomHQ checked Sep 5, 202610001+26,949

“Wood is a global leader in consulting and engineering, delivering critical solutions across energy and materials markets.”

Source: company website · checked Sep 5, 2026
2
Excellence LoggingIndirect evidence
London W2 2es, United KingdomHQ checked Sep 5, 20261,001-5,000933

“Excellence Logging is an established energy services provider focused on optimizing well performance.”

Source: company website · checked Sep 5, 2026
3
ABLIndirect evidence
London, United KingdomHQ checked Sep 5, 20261,001-5,000804

“The Energy and Marine Consultants - an Aqualis company.”

Source: company website · checked Sep 5, 2026
4
KBR GranhernePartial evidence
Leatherhead, United KingdomHQ checked Sep 5, 2026501-1,000648

“KBR Consulting is one of the world's foremost engineering consultancies specializing in the hydrocarbon and energy industry.”

Source: company website · checked Sep 5, 2026
5
MESStrong evidence
Leatherhead, United KingdomHQ checked Sep 5, 2026201-500403

“Monaco Engineering Solutions (MES) is a specialised technical consultancy with a focus in the Oil & Gas, Petrochemical and Refining, Renewable & Clean Energy, Chemical…”

Source: company website · checked Sep 5, 2026
6
GenesisIndirect evidence
London, United KingdomHQ checked Sep 5, 2026501-1,000401

“Genesis is a market-leading advisory company focused on providing high-value technical and advisory services for the energy industry.”

Source: company website · checked Sep 5, 2026
7Great Yarmouth, United KingdomHQ checked Sep 5, 2026201-500279

“Claxton, an AF Gruppen Company, combines decades of industry experience, proprietary technology, and exceptional service quality to cut through offshore installation and…”

Source: company website · checked Sep 5, 2026
8London, United KingdomHQ checked Sep 5, 2026201-500113

“Hobark International Limited (HIL) is an Integrated Services Company whose subsidiaries: DrillPet International Limited (DIL), Uniterm Nigeria Limited (UNL), UltiProc Nigeria…”

Source: company website · checked Sep 5, 2026
9
Derrick Services UK LTDStrong evidence
Great Yarmouth, United KingdomHQ checked Sep 5, 202651-200111

“Derrick Service UK Ltd (DSL) is a diversified oil & gas construction company which provides a broad range of products and services to the market from our Worldwide locations.”

Source: company website · checked Sep 5, 2026
10
CTS Offshore & MarineIndirect evidence
London, United KingdomHQ checked Sep 5, 202651-200106

“CTS Offshore & Marine Ltd is an independent provider of engineering services tailored for energy and material markets.”

Source: company website · checked Sep 5, 2026
11
AXISIndirect evidence
Aberdeenshire, United KingdomHQ checked Sep 5, 202651-20094

“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: company website · checked Sep 5, 2026
12
Katoni EngineeringPartial evidence
Aberdeen, United KingdomHQ checked Sep 5, 202651-20090

“Katoni provides consulting, engineering, optimisation and emissions reduction support for the Energy Sector.”

Source: company website · checked Sep 5, 2026
13
Premtech LTDIndirect evidence
Ashby-de-la-zouch, United KingdomHQ checked Sep 5, 202651-20074

“Premtech is a dynamic company whose primary focus is to provide engineering, consultancy and design management services to all companies involved in the development and ownership…”

Source: company website · checked Sep 5, 2026
14
HRH GeologyStrong evidence
Aberdeen, United KingdomHQ checked Sep 5, 202651-20073

“HRH Geology is the Oil and Gas Industry's leading provider of Operational Geology solutions.”

Source: company website · checked Sep 5, 2026
15
PDI LTDIndirect evidence
Aberdeen, United KingdomHQ checked Sep 5, 202651-20072

“Project Development International Limited (PDi) is a highly skilled and experienced consultancy providing project management and discipline engineering solutions to the global…”

Source: company website · checked Sep 5, 2026
16
RDSStrong evidence
Aberdeen, United KingdomHQ checked Sep 5, 20261,001-5,00070

“RDS is an engineering specialist working for oil and gas companies and major topsides and drilling contractors.”

Source: company website · checked Sep 5, 2026
17
Omnia ProjectsIndirect evidence
Northallerton, United KingdomHQ checked Sep 5, 202651-20068

“Omnia Projects are an Engineering Consultancy providing multidisciplinary expertise for energy projects providing a complete service from feasibility and concept development…”

Source: company website · checked Sep 5, 2026
18London, United KingdomHQ checked Sep 5, 202651-20066

“We are a leading independent consulting company with global expertise in Refining, Gas, Petrochemicals, Renewables, and Alternative Energies.”

Source: company website · checked Sep 5, 2026
19
JBA EngineeringIndirect evidence
Wynyard, United KingdomHQ checked Sep 5, 202611-5063

“JBA are industry-leading consultants, providing flexible engineering and design solutions, procurement, and construction services.”

Source: company website · checked Sep 5, 2026
20
ADC Energy LTDIndirect evidence
Aberdeen, United KingdomHQ checked Sep 5, 202611-5062

“ADC Energy Ltd.(formerly Aberdeen Drilling Consultants) is an international, family owned company with a worldwide reputation, gained by providing the highest standard of Rig…”

Source: company website · checked Sep 5, 2026
21
PIM LTDIndirect evidence
Aberdeen, United KingdomHQ checked Sep 5, 202651-20059

“PIM provide consultancy and strategic management support, for critical plant and equipment, to help clients manage the function and integrity of their assets.”

Source: company website · checked Sep 5, 2026
22London, United KingdomHQ checked Sep 5, 202651-20058

“NexantECA, the Energy and Chemicals Advisory company is the leading advisor to the energy, refining, and chemical industries.”

Source: company website · checked Sep 5, 2026
23
OPCPartial evidence
London, United KingdomHQ checked Sep 5, 202651-20058

“OPC is a leading global energy consultancy specialising in providing clients with top-tier expertise and innovative solutions across the upstream E&P, Gas and CO2 storage domains…”

Source: company website · checked Sep 5, 2026
24
Scaled Solutions LTDStrong evidence
Livingston, United KingdomHQ checked Sep 5, 202651-20053

“Scaled Solutions is a global independent laboratory testing and consultancy provider and Celnor Group member company, established in serving the oil and gas production sector…”

Source: company website · checked Sep 5, 2026
25
KeltonIndirect evidence
Aberdeen, United KingdomHQ checked Sep 5, 202611-5052

“Kelton is the energy industry’s consultancy partner.”

Source: company website · checked Sep 5, 2026

Showing 25 of 743 oil and gas consulting firms based in the United Kingdom

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Oil and gas consulting firms based in the United Kingdom at a glance

As of Sep 5, 2026
1-10Median size (employees)
LondonLargest hub · 188 HQs
4,652Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
504
11-50
159
51-200
44
201-500
15
501-1,000
7
1,001-5,000
4
5,001-10,000
1
10001+
3

Verified emails by last verification

0–30
9,911
31–60
632
61–90
1
90–180
1
180+
304

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 oil and gas consulting firms, 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 “oil and gas consulting firms”. 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 oil and gas consulting firms, 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, 10,849 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.

Oil and gas consulting firms by metro

  • Oil and gas consulting firms in London188
  • Oil and gas consulting firms in Aberdeen125

Frequently asked

How many oil and gas consulting firms are there based in the United Kingdom?

RevenueBase identified 743 oil and gas consulting firms 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?

WOOD, headquartered in Aberdeen, tops this list with the largest team on record.

Which city has the most oil and gas consulting firms?

London leads with 188 headquartered companies, followed by Aberdeen (125) and Edinburgh (19).

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 10,849 verified decision-maker contacts tracked across these 743 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.

Ready to reach these companies? Verified emails and direct dials for all 743 oil and gas consulting firms based in the United Kingdom. Start with a free account, no credit card.

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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.