Company lists · Data refreshed October 2026

Top 25 Environmental engineering contractors based in the United Kingdom

Name: Environmental engineering contractors based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 571 companies tracked

RevenueBase identified 571 company matches for environmental engineering contractors associated with the United Kingdom as of October 2026 and tracks 9,349 professional contacts across them, including 3,565 with verified work emails. London is the largest hub.

This list covers company matches for environmental engineering 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 12, 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 12, 2026 How this list was built

571Companies

9,349Contacts tracked

3,565Verified emails

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The 25 largest environmental engineering contractors based in the United Kingdom

Ranked by team size

Top 25 of 571 company matches for environmental engineering contractors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	RSK Group	Exact match	Helsby, United KingdomHQ recorded Oct 12, 2026	10001+	1,212 contacts →
	Exact match “RSK Group is a global leader in the delivery of environmental and engineering solutions.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	Ricardo PLC	Exact match	London, United KingdomHQ recorded Oct 12, 2026	1,001-5,000	627 contacts →
	Exact match “Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	Atelier TEN	Exact match	London, United KingdomHQ recorded Oct 12, 2026	51-200	311 contacts →
	Exact match “As environmental design consultants, building services engineers and lighting designers, we are committed to high performance and sustainable design within the built environment.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Hydro Cleansing	Exact match	Croydon, United KingdomHQ recorded Oct 12, 2026	201-500	250 contacts →
	Exact match “Founded in we are one of London’s and Southeast's leading providers of environmental and waste management services.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	The Erith Group	Exact match	London, United KingdomHQ recorded Oct 12, 2026	501-1,000	235 contacts →
	Exact match “Supported by a network of specialist consulting engineers, environmentalists and our own collective experience, our philosophy is simple: to provide a qualitative economic and…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	Aqua Consultants	Exact match	Leeds, United KingdomHQ recorded Oct 12, 2026	51-200	170 contacts →
	Exact match “Aqua Consultants provide tailored environmental consultancy to broaden your thinking, lead transformation, and achieve successful outcomes.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	JURU	Exact match	London, United KingdomHQ recorded Oct 12, 2026	51-200	169 contacts →
	Exact match “Founded in 2015, Juru is an international engineering and consultancy firm with a mission to solve engineering and environmental problems.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	Envolve Infrastructure	Exact match	Cardiff Road, United KingdomHQ recorded Oct 12, 2026	201-500	154 contacts →
	Exact match “We’re envolve, specialist civil engineers.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	The Sirius Group	Exact match	Durham, United KingdomHQ recorded Oct 12, 2026	201-500	153 contacts →
	Exact match “End to End Service: From initial investigations and assessments to planning, design and engineering support, we give you a foundation of confidence for your site development…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	Lucion	Exact match	Gateshead, United KingdomHQ recorded Oct 12, 2026	501-1,000	153 contacts →
	Exact match “We're not just service providers; we're your long-term partners in creating a sustainable, compliant, and efficient future for your assets.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	Z-Tech Control Systems LTD	Exact match	Swavesey, United KingdomHQ recorded Oct 12, 2026	201-500	144 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	Mackley	Exact match	Small Dole, United KingdomHQ recorded Oct 12, 2026	51-200	124 contacts →
	Exact match “Mackley provides a comprehensive range of services from conception through construction to project delivery.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	Land Water	Exact match	Guildford, United KingdomHQ recorded Oct 12, 2026	201-500	107 contacts →
	Exact match “Land + Water is more than just a dredging company.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	ECS Engineering Services LTD	Exact match	Sutton In Ashfield, United KingdomHQ recorded Oct 12, 2026	51-200	100 contacts →
	Exact match “ECS Engineering Services are a diverse mechanical, electrical, and process engineering contractor with over 35 years of experience.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	ERG AIR Pollution Control LTD	Exact match	Horsham, United KingdomHQ recorded Oct 12, 2026	51-200	94 contacts →
	Exact match “ERG is a specialist environmental engineering contractor.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Taylor And Fraser	Exact match	Paisley, United KingdomHQ recorded Oct 12, 2026	51-200	87 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 12, 2026 · View company records in RevenueBase
17	Howard Civil Engineering	Exact match	Leeds, United KingdomHQ recorded Oct 12, 2026	51-200	82 contacts →
	Exact match “Howard Civil Engineering is one of the North’s leading multi-disciplined civil engineering companies.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	GEL Engineering	Exact match	Enfield, United KingdomHQ recorded Oct 12, 2026	51-200	80 contacts →
	Exact match “Welcome to Gel Engineering.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	Adman Group	Exact match	Omagh, United KingdomHQ recorded Oct 12, 2026	51-200	75 contacts →
	Exact match “The Adman group of companies is a leading provider of civil engineering and construction services with a proven track record of service delivery for both public and private sector…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Vertasefli Limited	Exact match	Portishead, United KingdomHQ recorded Oct 12, 2026	51-200	75 contacts →
	Exact match “VertaseFLI is a leading brownfield and contaminated land remediation contractor and environmental contracting specialist.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Envirocentre	Exact match	Glasgow, United KingdomHQ recorded Oct 12, 2026	51-200	75 contacts →
	Exact match “EnviroCentre is a solutions orientated consultancy that has a proven track record in providing innovative, effective and valuable advice.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	IWS Mechanical & Electrical	Exact match	Walsall, United KingdomHQ recorded Oct 12, 2026	51-200	70 contacts →
	Exact match “Integrated Water Services M&E is an established Principle Contractor and Designer within the MEICA Process sector, specialising in pump diagnostics and refurbishment, turn-key…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	Waterco Datrys	Exact match	Ruthin, United KingdomHQ recorded Oct 12, 2026	11-50	64 contacts →
	Exact match “Waterco Datrys is a leading consultancy in water and environmental engineering, formed through the merger of Waterco and Datrys in 2024.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Carney Construction	Exact match	Reading, United KingdomHQ recorded Oct 12, 2026	51-200	63 contacts →
	Exact match “Civil Engineering Contractor” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	MJ Abbott LTD	Exact match	Salisbury, United KingdomHQ recorded Oct 12, 2026	51-200	62 contacts →
	Exact match “MJ Abbott Limited is one of the UK's leading sports turf and water engineering contractors.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “environmental engineering contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 571 environmental engineering contractors based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 3,565 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Environmental engineering contractors based in the United Kingdom at a glance

As of Oct 12, 2026

38.1%Verified-email coverage

16.4Average contacts per company

1-10Median size (employees)

7.9%Largest-city concentration · London

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

283

11-50

183

51-200

201-500

501-1,000

1,001-5,000

10001+

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 571 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 “environmental engineering 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 3,565 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 12, 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.

Environmental engineering contractors by metro

Environmental engineering contractors in London45

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 “environmental engineering contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental engineering contractors are there based in the United Kingdom?

RevenueBase identified 571 company matches for environmental engineering 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?

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

Which city has the most environmental engineering contractors?

London leads with 45 company records, followed by Manchester (16) and Glasgow (13).

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 3,565 professional contacts with verified work emails tracked across these 571 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 12, 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 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.