Company lists · Data refreshed September 2026

Top 15 Natural gas processing plant installation companies based in the United Kingdom

RevenueBase identified 47 natural gas processing plant installation companies headquartered in the United Kingdom as of September 2026 and tracks 729 professional contacts across them, including 215 with verified work emails. London is the largest hub.

This list covers natural gas processing plant 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
47Companies
729Contacts tracked
215Verified emails
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The 15 largest natural gas processing plant installation companies based in the United Kingdom

Ranked by team size
Top 15 of 47 natural gas processing plant 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 natural gas processing plant 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidencePembrokeshire, United KingdomHQ checked Sep 15, 2026501-1,000266 contacts →

Partial 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
2Indirect evidenceElba Crescent, United KingdomHQ checked Sep 15, 2026201-500117 contacts →

Indirect 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
3Indirect evidenceManchester, United KingdomHQ checked Sep 15, 202651-20044 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
4Indirect evidenceHull, United KingdomHQ checked Sep 15, 202651-20041 contacts →

Indirect evidence

“OSL is a multi-disciplined team of creative, forward thinking technical specialists, working collaboratively with the energy and related sectors to provide quality implemented…”

Source: RevenueBase Database · checked Sep 15, 2026
5Indirect evidenceChichester, United KingdomHQ checked Sep 15, 202611-5035 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
6Indirect evidenceBirkenhead, United KingdomHQ checked Sep 15, 202611-5033 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 15, 2026
7Partial evidenceGodalming, United KingdomHQ checked Sep 15, 202611-5031 contacts →

Partial evidence

“iGAS Technology Solutions are world leaders in the design and delivery of turnkey projects to the Industrial Gases sector, providing guaranteed, risk free solutions to maximise…”

Source: RevenueBase Database · checked Sep 15, 2026
8Indirect evidenceLondon, United KingdomHQ checked Sep 15, 2026501-1,00028 contacts →

Indirect evidence

“PetroGas” Company was founded in 1998.”

Source: RevenueBase Database · checked Sep 15, 2026
9Indirect evidenceNew Mills, United KingdomHQ checked Sep 15, 202611-5014 contacts →

Indirect evidence

“Environ is a multi-disciplinary project delivery and fabrication company.”

Source: RevenueBase Database · checked Sep 15, 2026
10Partial evidenceMiddlesbrough, United KingdomHQ checked Sep 15, 20261-109 contacts →

Partial evidence

“We are a supplier of process plant equipment and precision CNC machining services to a range of industries.”

Source: RevenueBase Database · checked Sep 15, 2026
11Strong evidenceIrvine, United KingdomHQ checked Sep 15, 20261-107 contacts →

Strong evidence

“AGW is a leading gas engineering company specialising in the design, installation, maintenance, and servicing of gas infrastructure and appliances for both domestic and commercial…”

Source: RevenueBase Database · checked Sep 15, 2026
12Strong evidenceLondon, United KingdomHQ checked Sep 15, 202611-506 contacts →

Strong evidence

“The specialists of Howe-Baker have great experience in all aspects of natural gas processing, crude oil refinery and water treatment plants.”

Source: RevenueBase Database · checked Sep 15, 2026
13Strong evidenceNewark, United KingdomHQ checked Sep 15, 20261-104 contacts →

Strong evidence

“CRS Gas Solutions provide specialist, innovative forward thinking engineering solutions for Industrial and Commercial gas installations nationwide.”

Source: RevenueBase Database · checked Sep 15, 2026
14Indirect evidenceBrierley Hill, United KingdomHQ checked Sep 15, 202611-504 contacts →

Indirect evidence

“Biogas Products Ltd design, manufacture and install biogas equipment in the UK and overseas.”

Source: RevenueBase Database · checked Sep 15, 2026
15Indirect evidenceManchester, United KingdomHQ checked Sep 15, 20261-101 contacts →

Indirect evidence

“Mechglobal is a dynamic design and engineering company that was founded in 2017.”

Source: RevenueBase Database · checked Sep 15, 2026

Showing 15 of 47 natural gas processing plant installation companies based in the United Kingdom

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Natural gas processing plant installation companies based in the United Kingdom at a glance

As of Sep 15, 2026
29.5%Verified-email coverage
15.5Average contacts per company
11-50Median size (employees)
14.9%Largest-city concentration · London
Sep 15, 2026Page data refreshed

Companies by employee count

1-10
21
11-50
19
51-200
3
201-500
2
501-1,000
2

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 47 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 natural gas processing plant 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 “natural gas processing plant 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 natural gas processing plant 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 natural gas processing plant 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, 215 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 natural gas processing plant 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 natural gas processing plant installation companies are there based in the United Kingdom?

RevenueBase identified 47 natural gas processing plant 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 natural gas processing plant installation companies?

London leads with 7 headquartered companies, followed by Manchester (3) and Hull (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 215 verified decision-maker contacts tracked across these 47 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.