Company lists · Data refreshed September 2026

Top 25 Petroleum refining equipment installation companies based in the United Kingdom

Name: Petroleum refining equipment installation companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 15, 2026 76 companies tracked

RevenueBase identified 76 petroleum refining equipment installation companies headquartered in the United Kingdom as of September 2026 and tracks 1,584 professional contacts across them, including 478 with verified work emails. London is the largest hub.

This list covers petroleum refining equipment installation companies 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 15, 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 15, 2026 86% judged on-target in blind review

76Companies

1,584Contacts tracked

478Verified emails

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The 25 largest petroleum refining equipment installation companies based in the United Kingdom

Ranked by team size

Top 25 of 76 petroleum refining equipment installation companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to petroleum refining equipment installation companies: 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	Ledwood Mechanical Engineering LTD	Indirect evidence	Pembrokeshire, United KingdomHQ checked Sep 15, 2026	501-1,000	266 contacts →
	Indirect evidence “Ledwood is an independent engineering, fabrication and construction company specialising in the delivery of complex projects across the oil, gas, process and energy industries.” Source: RevenueBase Database · checked Sep 15, 2026
2	Wilton Engineering	Indirect evidence	Middlesbrough, United KingdomHQ checked Sep 15, 2026	201-500	188 contacts →
	Indirect evidence “Wilton Engineering is a multi-disciplined Engineering Services provider based on a 113 acre site by the River Tees in Middlesbrough, North-East England.” Source: RevenueBase Database · checked Sep 15, 2026
3	Forsyths LTD	Indirect evidence	Rothes, United KingdomHQ checked Sep 15, 2026	201-500	124 contacts →
	Indirect evidence “Forsyths Ltd is the fabrication division of The Forsyth Group, operating from four strategically located fabrication facilities in the North East of Scotland.” Source: RevenueBase Database · checked Sep 15, 2026
4	Unitbirwelco	Partial evidence	Elba Crescent, United KingdomHQ checked Sep 15, 2026	201-500	117 contacts →
	Partial evidence “As a leading expert in thermal equipment, UnitBirwelco is dedicated to delivering excellence in design, project management, manufacturing, fabrication, construction, and…” Source: RevenueBase Database · checked Sep 15, 2026
5	Derrick Services UK LTD	Indirect evidence	Great Yarmouth, United KingdomHQ checked Sep 15, 2026	51-200	111 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 15, 2026
6	CAT Tech International LTD	Partial evidence	Scunthorpe, United KingdomHQ checked Sep 15, 2026	201-500	91 contacts →
	Partial evidence “A specialist industrial services group that supports the global oil refining and petrochemical industries, based in North Lincolnshire, United Kingdom, Cat Tech International Ltd.” Source: RevenueBase Database · checked Sep 15, 2026
7	Boustead International Heaters	Indirect evidence	Burgess Hill, United KingdomHQ checked Sep 15, 2026	51-200	79 contacts →
	Indirect evidence “Boustead International Heaters is a leading global specialist in designing, engineering and supplying direct-fired process heater systems, waste heat recovery units and once…” Source: RevenueBase Database · checked Sep 15, 2026
8	Kirstall Limited	Partial evidence	Nantwich, United KingdomHQ checked Sep 15, 2026	51-200	69 contacts →
	Partial evidence “We are a successful mechanical installation company offering services to the Oil & Gas / Petro-Chemical Industries.” Source: RevenueBase Database · checked Sep 15, 2026
9	Simon Carves	Indirect evidence	Manchester, United KingdomHQ checked Sep 15, 2026	51-200	44 contacts →
	Indirect evidence “Simon Carves Engineering is a full-service Process Engineering Contractor, providing a comprehensive range of services to the Process and Energy industries worldwide.” Source: RevenueBase Database · checked Sep 15, 2026
10	Quanta EPC	Indirect evidence	Cramlington, United KingdomHQ checked Sep 15, 2026	51-200	42 contacts →
	Indirect evidence “Quanta delivers engineering, procurement and construction services to the energy industry, working in partnership with our clients to provide integrated end to end solutions…” Source: RevenueBase Database · checked Sep 15, 2026
11	Enerfac Solutions	Indirect evidence	London, United KingdomHQ checked Sep 15, 2026	51-200	38 contacts →
	Indirect evidence “Enerfac Solutions is a global leader in Engineering, Procurement, Construction, and Commissioning (EPCC), delivering innovative, reliable, and technologically advanced services…” Source: RevenueBase Database · checked Sep 15, 2026
12	Flotech Performance Systems	Indirect evidence	Chichester, United KingdomHQ checked Sep 15, 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 15, 2026
13	Eesb Engineering Limited	Indirect evidence	Birkenhead, United KingdomHQ checked Sep 15, 2026	11-50	33 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026
14	Petro GAS LLP	Indirect evidence	London, United KingdomHQ checked Sep 15, 2026	501-1,000	28 contacts →
	Indirect evidence “PetroGas” Company was founded in 1998.” Source: RevenueBase Database · checked Sep 15, 2026
15	G R Carr Essex LTD	Indirect evidence	Basildon, United KingdomHQ checked Sep 15, 2026	51-200	24 contacts →
	Indirect evidence “Founded in 1970, GR Carr (Essex) Ltd.” Source: RevenueBase Database · checked Sep 15, 2026
16	Prodecon	Indirect evidence	Nantwich, United KingdomHQ checked Sep 15, 2026	11-50	19 contacts →
	Indirect evidence “ProDecon is a leading provider of turnkey chemical cleaning, refinery decontamination and pre-commissioning cleaning services.” Source: RevenueBase Database · checked Sep 15, 2026
17	OWS Engineering Services	Indirect evidence	Birkenhead, United KingdomHQ checked Sep 15, 2026	51-200	17 contacts →
	Indirect evidence “OWS Engineering Services are an established pipe services, engineering and steel fabrication company motivated by helping to find solutions to your individual engineering problems.” Source: RevenueBase Database · checked Sep 15, 2026
18	NW Total Engineered Solutions	Indirect evidence	Barrow-in-furness, United KingdomHQ checked Sep 15, 2026	51-200	11 contacts →
	Indirect evidence “NW Total Engineered Solutions Ltd.” Source: RevenueBase Database · checked Sep 15, 2026
19	Clarke Construction Services Limited	Partial evidence	Lichfield, United KingdomHQ checked Sep 15, 2026	11-50	9 contacts →
	Partial evidence “At Clarke Construction (Services) Limited we specialise in construction within the petroleum industry.” Source: RevenueBase Database · checked Sep 15, 2026
20	Puma Engineering & Construction LTD	Indirect evidence	Southampton, United KingdomHQ checked Sep 15, 2026	51-200	8 contacts →
	Indirect evidence “Established in the year our workshops and offices are located in Southampton, Hampshire.” Source: RevenueBase Database · checked Sep 15, 2026
21	Apsl Systems Limited	Strong evidence	Rugby, United KingdomHQ checked Sep 15, 2026	1-10	7 contacts →
	Strong evidence “APSL Systems Limited (APSL) is a global supplier of Oil, Gas, Produced Water and Sea Water process equipment solutions to the Oil, Gas, Refining and Petrochemicals Industries.” Source: RevenueBase Database · checked Sep 15, 2026
22	MDM Services LTD	Indirect evidence	Newport, United KingdomHQ checked Sep 15, 2026	11-50	6 contacts →
	Indirect evidence “MDM are Forecourt and Petrol Pump Specialists.” Source: RevenueBase Database · checked Sep 15, 2026
23	Westfield Services UK LTD	Indirect evidence	Batley, United KingdomHQ checked Sep 15, 2026	11-50	5 contacts →
	Indirect evidence “Westfield Services (UK) Ltd is a company based out of the United Kingdom.” Source: RevenueBase Database · checked Sep 15, 2026
24	Vartiss LTD	Indirect evidence	Birkenhead, United KingdomHQ checked Sep 15, 2026	11-50	5 contacts →
	Indirect evidence “Vartiss provide welding, fabrication and mechanical, pipework, steelwork & storage-tank contract services to the oil & gas, petro-chemical and process industries.” Source: RevenueBase Database · checked Sep 15, 2026
25	Falcon Fuel	Strong evidence	Armagh, United KingdomHQ checked Sep 15, 2026	1-10	5 contacts →
	Strong evidence “Petroleum Equipment Supplies, Installation and Maintenance.” Source: RevenueBase Database · checked Sep 15, 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: petroleum refining equipment installation companies. 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 petroleum refining equipment installation companies.
Partial evidence: Its own public description names part of petroleum refining equipment installation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name petroleum refining equipment installation companies. 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 76 petroleum refining equipment installation companies based in the United Kingdom

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Petroleum refining equipment installation companies based in the United Kingdom at a glance

As of Sep 15, 2026

30.2%Verified-email coverage

20.8Average contacts per company

11-50Median size (employees)

14.5%Largest-city concentration · London

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 76 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 refining equipment installation companies, 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 refining equipment installation companies”. 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 refining equipment installation companies), 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 refining equipment installation companies, 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, 478 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 15, 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 refining equipment installation companies, 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 refining equipment installation companies are there based in the United Kingdom?

RevenueBase identified 76 petroleum refining equipment installation companies 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?

Ledwood Mechanical Engineering LTD, headquartered in Pembroke Dock, tops this list with the largest team on record.

Which city has the most petroleum refining equipment installation companies?

London leads with 11 headquartered companies, followed by Birkenhead (3) and Bristol (2).

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 478 verified decision-maker contacts tracked across these 76 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 15, 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.