Company lists · Data refreshed October 2026

Top 25 Downstream refining contractors based in the United Kingdom

RevenueBase identified 399 company matches for downstream refining contractors associated with the United Kingdom as of October 2026 and tracks 25,493 professional contacts across them, including 4,235 with verified work emails. London is the largest hub.

This list covers company matches for downstream refining contractors associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 11, 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 RevenueBase SmartSearch · Exact Recorded Oct 11, 2026 How this list was built
399Companies
25,493Contacts tracked
4,235Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest downstream refining contractors based in the United Kingdom

Ranked by team size
Top 25 of 399 company matches for downstream refining contractors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Oct 11, 20265,001-10,00011,863 contacts →

Exact match

“We are a leading international service provider to the energy industry, with a diverse client portfolio including many of the world’s leading energy companies.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
2Exact matchWarrington, United KingdomHQ recorded Oct 11, 20261,001-5,0002,157 contacts →

Exact match

“With a strong commitment to sustainability, Bilfinger UK stands out as a premier provider of engineering and maintenance services.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
3Exact matchLeatherhead, United KingdomHQ recorded Oct 11, 2026501-1,000702 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
4Exact matchGrangemouth, United KingdomHQ recorded Oct 11, 20261,001-5,000511 contacts →

Exact match

“Located at Grangemouth, some 40km west of Edinburgh, one of INEOS’ largest manufacturing sites directly employs c1500 highly skilled people.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
5Exact matchKendal, United KingdomHQ recorded Oct 11, 2026201-500480 contacts →

Exact match

“TEAM is a leading industrial services company offering an array of specialized services related to the construction, maintenance, and monitoring of pressurized piping and…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6Exact matchAberdeen, United KingdomHQ recorded Oct 11, 2026501-1,000405 contacts →

Exact match

“A new breed of engineering, procurement and construction (EPC) provider that is turning next-gen energy into operational reality, through innovative solutions, partnerships and…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
7Exact matchLeatherhead, United KingdomHQ recorded Oct 11, 2026201-500402 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
8Exact matchPembrokeshire, United KingdomHQ recorded Oct 11, 2026501-1,000280 contacts →

Exact match

“Ledwood is an independent engineering, fabrication and construction company specialising in the delivery of complex projects across the oil, gas, process and energy industries.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
9Exact matchGreat Yarmouth, United KingdomHQ recorded Oct 11, 2026201-500279 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10Exact matchAberdeen, United KingdomHQ recorded Oct 11, 2026201-500234 contacts →

Exact match

“SKN specialise in providing competent technical personnel to carry out engineering solutions from concept to completion in the design, supply, installation, commissioning…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
11Exact matchBirmingham, United KingdomHQ recorded Oct 11, 2026501-1,000214 contacts →

Exact match

“At Actemium UK, we are expert electrical, automation and mechanical engineers delivering bespoke engineering solutions across industry, infrastructure and beyond.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
12Exact matchGrimsby, United KingdomHQ recorded Oct 11, 2026201-500199 contacts →

Exact match

“For over 45 years, Blackrow Engineering has been delivering high-quality engineering, fabrication, and site services to clients across the UK and worldwide.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
13Exact matchThornaby-on-tees, United KingdomHQ recorded Oct 11, 2026201-500186 contacts →

Exact match

“Eastgate Engineering is an Electrical and Instrumentation contractor that delivers complex, high-risk infrastructure projects with cost certainty, without compromising safety or…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14Exact matchMiddlesbrough, United KingdomHQ recorded Oct 11, 2026201-500185 contacts →

Exact match

“Wilton Engineering is a multi-disciplined Engineering Services provider based on a 113 acre site by the River Tees in Middlesbrough, North-East England.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15Exact matchKintore, United KingdomHQ recorded Oct 11, 202611-50132 contacts →

Exact match

“RELIABLE | RESOURCEFUL | READY We continually raise the bar by challenging ourselves and our clients to enable safe and efficient performance.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16Exact matchElba Crescent, United KingdomHQ recorded Oct 11, 2026201-500120 contacts →

Exact match

“As a leading expert in thermal equipment, UnitBirwelco is dedicated to delivering excellence in design, project management, manufacturing, fabrication, construction, and…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17Exact matchGreat Yarmouth, United KingdomHQ recorded Oct 11, 202651-200115 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Oct 11, 202651-200108 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19Exact matchAberdeen, United KingdomHQ recorded Oct 11, 202611-50107 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20Exact matchWallsend, United KingdomHQ recorded Oct 11, 2026201-50098 contacts →

Exact match

“Founded in 1975 in the North East of England, Barrier Group is a multi-disciplined turnkey engineering, design, and build contractor with over 50 years’ experience across…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
21Exact matchScunthorpe, United KingdomHQ recorded Oct 11, 2026201-50095 contacts →

Exact match

“A specialist industrial services group that supports the global oil refining and petrochemical industries, based in North Lincolnshire, United Kingdom, Cat Tech International Ltd.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22Exact matchNewtownabbey, United KingdomHQ recorded Oct 11, 2026201-50088 contacts →

Exact match

“Copius Group is a premier provider of construction and engineering services, delivering comprehensive solutions for offshore and onshore projects across the globe.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
23Exact matchPaisley, United KingdomHQ recorded Oct 11, 202651-20087 contacts →

Exact match

“As a leading contractor within the construction and engineering industry, and now a proud subsidiary of Suir Engineering, we deliver projects across a range of markets to our…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
24Exact matchAberdeen, United KingdomHQ recorded Oct 11, 2026201-50082 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25Exact matchStockton-on-tees, United KingdomHQ recorded Oct 11, 202651-20082 contacts →

Exact match

“With over 50 years of continued success, K Home International (KHI) is a family-owned, multi-discipline engineering design and construction company, based in Thornaby…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase

Showing 25 of 399 downstream refining contractors based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 4,235 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Downstream refining contractors based in the United Kingdom at a glance

As of Oct 11, 2026
16.6%Verified-email coverage
63.9Average contacts per company
11-50Median size (employees)
11.3%Largest-city concentration · London
Oct 11, 2026Page data refreshed

Companies by employee count

1-10
164
11-50
141
51-200
59
201-500
17
501-1,000
9
1,001-5,000
6
5,001-10,000
1

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 399 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with the United Kingdom whose business descriptions match “downstream refining contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 4,235 professional contacts with verified work emails across the full matched dataset. 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 October 11, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “downstream refining contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many downstream refining contractors are there based in the United Kingdom?

RevenueBase identified 399 company matches for downstream refining contractors associated with the United Kingdom as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Petrofac tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most downstream refining contractors?

London leads with 45 company records, followed by Aberdeen (25) and Manchester (10).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 4,235 professional contacts with verified work emails tracked across these 399 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 11, 2026.

Ready to reach these companies? Verified emails and direct dials for all 399 downstream refining contractors based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

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.