Company lists · Data refreshed September 2026

Top 25 Petroleum engineering consulting firms based in the United Kingdom

RevenueBase identified 551 petroleum engineering consulting firms headquartered in the United Kingdom as of September 2026 and tracks 50,119 professional contacts across them, including 10,899 with verified work emails. London is the largest hub.

This list covers petroleum engineering 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 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 29, 2026 86% judged on-target in blind review
551Companies
50,119Contacts tracked
10,899Verified emails
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The 25 largest petroleum engineering consulting firms based in the United Kingdom

Ranked by team size
Top 25 of 551 petroleum engineering consulting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to petroleum engineering 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
1Strong evidenceAberdeen, United KingdomHQ checked Sep 29, 202610001+26,949 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceLondon W2 2es, United KingdomHQ checked Sep 29, 20261,001-5,000933 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceAberdeen, United KingdomHQ checked Sep 29, 2026501-1,000653 contacts →

Partial evidence

“PD & MS Group has full multi-discipline in-house EPCC capability and is recognised as a provider of safe, effective, and cost efficient design and engineering services to onshore…”

Source: RevenueBase Database · checked Sep 29, 2026
4Strong evidenceLeatherhead, United KingdomHQ checked Sep 29, 2026501-1,000648 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceLeatherhead, United KingdomHQ checked Sep 29, 2026201-500403 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceGreat Yarmouth, United KingdomHQ checked Sep 29, 2026201-500279 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 29, 2026
7Indirect evidenceLondon, United KingdomHQ checked Sep 29, 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 29, 2026
8Indirect evidenceGreat Yarmouth, United KingdomHQ checked Sep 29, 202651-200111 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceLondon, United KingdomHQ checked Sep 29, 202651-200106 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
10Partial evidenceAberdeen, United KingdomHQ checked Sep 29, 202611-5099 contacts →

Partial evidence

“Innovative Engineering Excellence for the energy sector through our engineering design & field development divisions.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceWesthill, United KingdomHQ checked Sep 29, 202651-20098 contacts →

Indirect evidence

“Fearnley Group is committed to the growth and development of our people through continuous training and support.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceAberdeenshire, United KingdomHQ checked Sep 29, 202651-20094 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 29, 2026
13Strong evidenceAberdeen, United KingdomHQ checked Sep 29, 202651-20090 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceAberdeen, United KingdomHQ checked Sep 29, 2026201-50089 contacts →

Partial evidence

“Elemental Energies is a global engineering and project management business with a track record spanning more than 35 years.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceAshby-de-la-zouch, United KingdomHQ checked Sep 29, 202651-20074 contacts →

Partial evidence

“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: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceAberdeen, United KingdomHQ checked Sep 29, 2026201-50074 contacts →

Indirect evidence

“At TDC we focus on two fundamental areas of business; our customers and our people.”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceAberdeen, United KingdomHQ checked Sep 29, 202651-20072 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceAberdeen, United KingdomHQ checked Sep 29, 20261,001-5,00070 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
19Partial evidenceNorthallerton, United KingdomHQ checked Sep 29, 202651-20068 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
20Partial evidenceLondon, United KingdomHQ checked Sep 29, 202651-20066 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
21Partial evidenceWynyard, United KingdomHQ checked Sep 29, 202611-5063 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-20058 contacts →

Indirect 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 29, 2026
23Indirect evidenceSouthampton, United KingdomHQ checked Sep 29, 202611-5050 contacts →

Indirect evidence

“Crondall Energy is an independent offshore energy consultancy specialising in floating and subsea facilities.”

Source: RevenueBase Database · checked Sep 29, 2026
24Strong evidenceLondon, United KingdomHQ checked Sep 29, 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 29, 2026
25Partial evidenceAberdeen, United KingdomHQ checked Sep 29, 202611-5045 contacts →

Partial evidence

“Zenith Energy Limited is a Well Engineering Consultancy and Project Management company providing a range of specialist services to the Oil and Gas Industry.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 551 petroleum engineering consulting firms based in the United Kingdom

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Petroleum engineering consulting firms based in the United Kingdom at a glance

As of Sep 29, 2026
21.7%Verified-email coverage
91.0Average contacts per company
1-10Median size (employees)
18.7%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
379
11-50
115
51-200
35
201-500
8
501-1,000
4
1,001-5,000
3
5,001-10,000
1
10001+
4

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 551 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 petroleum engineering 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 the United Kingdom whose own description of what they do matches “petroleum engineering 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 petroleum engineering 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 petroleum engineering 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 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, 10,899 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 29, 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

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 petroleum engineering 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 petroleum engineering consulting firms are there based in the United Kingdom?

RevenueBase identified 551 petroleum engineering 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 petroleum engineering consulting firms?

London leads with 103 headquartered companies, followed by Aberdeen (94) and Edinburgh (12).

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 10,899 verified decision-maker contacts tracked across these 551 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 29, 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.