Company lists · Data refreshed September 2026

Top 25 Oil and gas management consulting firms based in London, United Kingdom

RevenueBase identified 438 oil and gas management consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 5,140 professional contacts across them, including 2,006 with verified work emails. London is the largest hub.

This list covers oil and gas management consulting firms headquartered in London, 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 21, 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 21, 2026 86% judged on-target in blind review
438Companies
5,140Contacts tracked
2,006Verified emails
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The 25 largest oil and gas management consulting firms based in London, United Kingdom

Ranked by team size
Top 25 of 438 oil and gas management consulting firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to oil and gas management consulting firms: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLondon, United KingdomHQ checked Sep 21, 20261,001-5,000804 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceLondon, United KingdomHQ checked Sep 21, 2026501-1,000401 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
3Strong evidenceLondon, United KingdomHQ checked Sep 21, 2026201-500249 contacts →

Strong evidence

“We offer a comprehensive range of consulting services for trade lifecycle management to the energy, commodity, shipping, treasury, and financial markets, delivered by the most…”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceLondon, United KingdomHQ checked Sep 21, 2026201-500113 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 21, 2026
5Indirect evidenceLondon, United KingdomHQ checked Sep 21, 202651-200106 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceLondon, United KingdomHQ checked Sep 21, 202651-20074 contacts →

Indirect evidence

“Whether complex transformation is required across your business or you are seeking support with a small project, we are here to help.”

Source: RevenueBase Database · checked Sep 21, 2026
7Strong evidenceLondon, United KingdomHQ checked Sep 21, 202651-20066 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceLondon, United KingdomHQ checked Sep 21, 202651-20058 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceLondon, United KingdomHQ checked Sep 21, 202651-20058 contacts →

Partial evidence

“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: RevenueBase Database · checked Sep 21, 2026
10Strong evidenceLondon, United KingdomHQ checked Sep 21, 202611-5048 contacts →

Strong 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 21, 2026
11Partial evidenceLondon, United KingdomHQ checked Sep 21, 202611-5045 contacts →

Partial evidence

“In a world where speed is a competitive advantage, Gas Strategies accelerates your route to readiness.”

Source: RevenueBase Database · checked Sep 21, 2026
12Partial evidenceLondon, United KingdomHQ checked Sep 21, 202611-5022 contacts →

Partial evidence

“Working across the full energy portfolio, we deliver solutions and capabilities in project management, project assurance, agile product teams, digital expertise, data…”

Source: RevenueBase Database · checked Sep 21, 2026
13Partial evidenceLondon, United KingdomHQ checked Sep 21, 202611-5020 contacts →

Partial evidence

“Business Management Consultant and Expert”

Source: RevenueBase Database · checked Sep 21, 2026
14Partial evidenceLondon, United KingdomHQ checked Sep 21, 202611-5019 contacts →

Partial evidence

“Aczel is a management consultancy with a unique difference.”

Source: RevenueBase Database · checked Sep 21, 2026
15Strong evidenceLondon, United KingdomHQ checked Sep 21, 20261-1017 contacts →

Strong evidence

“Islay Subsurface & Engineering Ltd was founded in 2010 by Iain Whyte to provide support to oil and gas operators, and their partners.”

Source: RevenueBase Database · checked Sep 21, 2026
16Strong evidenceLondon, United KingdomHQ checked Sep 21, 20261-1015 contacts →

Strong evidence

“Welcome to Telos, partnering with a broad range of global clients, and their advisers, throughout the oil and gas, renewables, and alternative energy industry.”

Source: RevenueBase Database · checked Sep 21, 2026
17Strong evidenceLondon, United KingdomHQ checked Sep 21, 202611-5015 contacts →

Strong evidence

Management Consulting Company”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 21, 202611-5013 contacts →

Indirect evidence

“The best way to address subsurface risk in exploration is by industry collaboration.”

Source: RevenueBase Database · checked Sep 21, 2026
19Strong evidenceLondon, United KingdomHQ checked Sep 21, 202611-5013 contacts →

Strong evidence

“PETROXIN is an international upstream oil and gas company providing technical expertise and cost-effective full life-cycle integrated solutions to global clients of operators and…”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceLondon, United KingdomHQ checked Sep 21, 20261-1012 contacts →

Indirect evidence

“Highbridge Partners is a specialist Energy and Commodity Executive Search and Advisory firm partnering with a broad selection of global clients across EMEA, Asia-Pacific and The…”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceLondon, United KingdomHQ checked Sep 21, 20261-1011 contacts →

Indirect evidence

“CITAC Africa Ltd is a UK-based, independent consultancy company focusing on the downstream African Energy market.”

Source: RevenueBase Database · checked Sep 21, 2026
22Strong evidenceLondon, United KingdomHQ checked Sep 21, 20261-1011 contacts →

Strong evidence

“Acrometis is a consultancy formed by senior oil and gas industry professionals, which helps energy companies improve the sustainable performance of their assets by enhancing…”

Source: RevenueBase Database · checked Sep 21, 2026
23Strong evidenceLondon, United KingdomHQ checked Sep 21, 202651-20011 contacts →

Strong evidence

“FGE is a preeminent global oil and gas consultancy which provides leading independent research, analysis, consultation, and advisory services to a large and diverse client base…”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceLondon, United KingdomHQ checked Sep 21, 20261-1011 contacts →

Indirect evidence

“Syntillica is an independent energy consultancy group with more than 200 talented experts with experience across more than 100 countries We provide Energy Experts on Demand across…”

Source: RevenueBase Database · checked Sep 21, 2026
25Partial evidenceLondon, United KingdomHQ checked Sep 21, 202611-5010 contacts →

Partial evidence

“ESP Consulting is a specialist provider of advisory services to the energy sector.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 438 oil and gas management consulting firms based in London, United Kingdom

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Oil and gas management consulting firms based in London, United Kingdom at a glance

As of Sep 21, 2026
39.0%Verified-email coverage
11.7Average contacts per company
1-10Median size (employees)
100.0%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
310
11-50
83
51-200
18
201-500
9
501-1,000
4
1,001-5,000
5
5,001-10,000
1

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 438 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 oil and gas management consulting firms, 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 London, United Kingdom whose own description of what they do matches “oil and gas management consulting firms”. 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 oil and gas management consulting firms), 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 oil and gas management consulting firms, and records with no verified work email. Companies headquartered outside London 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, 2,006 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 21, 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 management consulting firms by metro in the United Kingdom

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 oil and gas management consulting firms, 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 oil and gas management consulting firms are there based in London, United Kingdom?

RevenueBase identified 438 oil and gas management consulting firms headquartered in London, 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?

ABL, headquartered in London, tops this list with the largest team on record.

Which city has the most oil and gas management consulting firms?

London leads with 438 headquartered companies, followed by Aberdeen (135) and Edinburgh (29).

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 2,006 verified decision-maker contacts tracked across these 438 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 21, 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.