100 leading environmental services companies in England (2026 list)

These English companies are primarily large corporations providing environmental services, utilities, and manufacturing. Many focus on sustainability and resource management. Notable examples include DS Smith, which offers packaging and recycling; RSK Group, a global environmental consultancy; Johnson Matthey, specializing in sustainable technologies; and Pentair, a provider of water solutions.

A significant portion of these companies, such as Thames Water, Severn Trent, United Utilities, Anglian Water Services, and Yorkshire Water, are utilities. They are headquartered across various English cities, with a notable cluster in London, reflecting the capital's role as a business hub.

#	Company	Industry	Headquarters	Employees	Founded
1	DS Smith dssmith.com Innovative packaging solutions, paper products and recycling services using renewable resources to minimize environmental impact while optimizing supply chains for increased profitability.	Manufacturing	🇬🇧 London	13,157	n/a
2	RSK Group rskgroup.com Global provider of environmental consultancy and engineering services, integrating innovation and multidisciplinary collaboration to address complex sustainability challenges.	Environmental Services	🇬🇧 Helsby	12,442	n/a
3	Johnson Matthey matthey.com development of sustainable technologies supporting energy, chemicals, and automotive sectors to decarbonise, reduce emissions, and enhance sustainability	Chemical Manufacturing	🇬🇧 London	8,592	1817
4	Pentair pentair.com This company provides sustainable water solutions for residential, business, and industrial use globally, focusing on improving lives and the environment	Industrial Machinery Manufacturing	🇬🇧 London	7,711	1966
5	Thames Water thameswater.co.uk Providing clean water and wastewater services to millions, maintaining infrastructure, ensuring quality, investing in sustainability and community education.	Utilities	🇬🇧 Reading	7,000	n/a
6	Severn Trent severntrent.com Provision of clean water and safe wastewater removal for homes, schools, businesses, and hospitals, focusing on community care and quality service.	Utilities	🇬🇧 Coventry	7,000	1974
7	RPS rpsgroup.com Global consulting and engineering firm part of Tetra Tech, providing services in property, energy, transport, water, resources, defense, and government sectors	Business Consulting and Services	🇬🇧 Abingdon	5,846	n/a
8	United Utilities unitedutilities.com Provides water and wastewater services to seven million people in the North West of England through treatment, delivery, and environmental protection measures	Utilities	🇬🇧 Warrington	5,299	1995
9	Tarmac tarmac.com Leading UK company providing sustainable building materials, asphalt, cement, concrete, and infrastructure services for major construction projects.	Construction	🇬🇧 Solihull	4,393	2015
10	Sellafield Ltd careers.sellafieldsite.co.uk A global leader in nuclear engineering, setting international standards in high-hazard reduction and pioneering nuclear power generation for electricity	Chemical Manufacturing	🇬🇧 Risley	4,333	1947
11	Anglian Water Services anglianwater.co.uk Supply clean water and recycling services to millions in dry regions, ensuring sustainable water management and availability.	Utilities	🇬🇧 Huntingdon	4,126	n/a
12	Kirklees Council linktr.ee Providing public services and governance through elected leadership, supporting community needs across children, health, resources, and local development sectors.	Government Relations Services	🇬🇧 Huddersfield	4,102	n/a
13	Cornwall Council cornwall.gov.uk Provide comprehensive public services including care, infrastructure, housing, and community support across a large rural county with strong local partnerships.	Government Administration	🇬🇧 Truro	4,087	n/a
14	Southwark Council southwark.gov.uk Local government focused on enhancing community quality of life through investment, workforce development, and improving safety, cleanliness, and accessibility.	Government Administration	🇬🇧 London	3,630	n/a
15	Yorkshire Water yorkshirewater.com Manage water supply, wastewater services, protect environment, support communities and economy, ensuring clean water and sanitation across Yorkshire region.	Utilities	🇬🇧 Bradford	3,398	1989
16	London Borough of Lambeth beacons.ai Providing planning, social work, housing, and education services to a diverse community of over 300,000 residents and businesses.	Government Administration	🇬🇧 London	3,148	1965
17	Newcastle City Council new.newcastle.gov.uk Local government providing public services and governance for Newcastle upon Tyne, representing 78 councillors across 26 wards serving residents.	Government Administration	🇬🇧 Newcastle upon Tyne	3,140	1974
18	Biffa biffa.co.uk Provides collection, treatment, recycling, and energy generation services. Helps businesses and households with waste management and sustainability goals.	Environmental Services	🇬🇧 High Wycombe	3,127	1912
19	Southern Water southernwater.co.uk Supply drinking water and treat wastewater for millions in South East England, focusing on sustainability and resilience amid climate challenges.	Utilities	🇬🇧 Worthing	2,927	n/a
20	London Borough of Hackney hackney.gov.uk A high-performing local authority in the UK, focusing on residents to make Hackney fairer, safer, and more sustainable through excellent services and thriving businesses	Government Administration	🇬🇧 London	2,896	n/a
21	Salford City Council salford.gov.uk provides comprehensive public services and facilities to residents, supports economic growth, housing development, and community well-being in Salford.	Government Administration	🇬🇧 Salford	2,714	n/a
22	ACS acstesting.co.uk Providing materials testing, consultancy, and geo-environmental services to the Building, Construction, and Civil Engineering industries across the South of England	Construction	🇬🇧 Poole	2,708	1987
23	Portsmouth City Council portsmouth.gov.uk Providing local government services including news updates, event information, applications, payments, bookings, and reporting for community residents.	Government Administration	🇬🇧 Portsmouth	2,681	1997
24	Hull City Council hull.gov.uk Providing over 400 public services to residents, managing cultural assets, supporting city redevelopment, and overseeing local governance and community investment.	Government Administration	🇬🇧 Hull	2,681	n/a
25	Cheshire West and Chester Council cheshirewestandchester.gov.uk Unitary authority formed in 2009, delivering customer-focused services in Cheshire West and Chester, emphasizing value for money and best practices	Government Administration	🇬🇧 Chester	2,584	2009
26	Worcestershire County Council worcestershire.gov.uk Local government focusing on economic growth, child and family welfare, environmental preservation, and improving health and well-being of residents.	Government Administration	🇬🇧 Worcester	2,517	n/a
27	AO ao-jobs.com Sells a full range of electricals online, including white goods and mobile services, with its own logistics and recycling plant for a circular approach.	Retail	🇬🇧 Bolton	2,488	2000
28	Stoke-on-Trent City Council stoke.gov.uk Local government focused on improving city services, enhancing customer satisfaction, and fostering a strong, ambitious, and innovative workforce.	Government Administration	🇬🇧 Stoke-on-Trent	2,386	1910
29	Walsall Council go.walsall.gov.uk Local authority providing waste collection, planning, leisure, business support, and community services to residents in Walsall borough.	Government Administration	🇬🇧 Walsall	2,315	n/a
30	North Tyneside Council northtyneside.gov.uk Local government authority providing representation, community services, employment, and fostering diversity and inclusion within North Tyneside borough.	Government Administration	🇬🇧 Cobalt Business Park	2,229	1974
31	EMR uk.emrgroup.com Global leader in metal recycling since the 1950s, with over 130 sites worldwide Recycles 10 million tonnes annually into 200+ sustainable raw materials	Environmental Services	🇬🇧 Warrington	2,192	1950
32	Dudley Council dudley.gov.uk Local government providing essential public services, managing community resources, supporting residents, and fostering economic opportunities across multiple towns.	Government Administration	🇬🇧 Dudley	2,183	1974
33	Sefton Council sefton.gov.uk Providing essential local government services, supporting residents, businesses, and visitors across diverse urban and coastal communities in Sefton.	Government Administration	🇬🇧 Bootle	2,147	1974
34	London Borough of Waltham Forest walthamforest.gov.uk Local government focused on cultural heritage, community diversity, urban regeneration, and improving quality of life for residents.	Government Administration	🇬🇧 London	2,136	1965
35	Lanes Group lanesgroup.com A diversified wastewater solutions provider offering drainage, rail maintenance, sewer rehabilitation, and environmental services with a focus on innovation and service excellence	Utilities	🇬🇧 Leeds	2,125	1992
36	London Borough of Barking and Dagenham lbbd.gov.uk A growing London borough investing in physical infrastructure, community, housing, a film studio, a university campus, and a Youth Zone Visit website for more information	Government Administration	🇬🇧 London	2,002	1965
37	Swindon Borough Council swindon.gov.uk Local government providing education, social care, highways, waste management, economic regeneration, libraries, transport, and support services to residents.	Government Administration	🇬🇧 Swindon	1,982	n/a
38	Central Bedfordshire Council centralbedfordshire.gov.uk Local government providing community services, fostering collaboration, supporting employee development, managing resources efficiently, and enhancing quality of life for residents.	Government Administration	🇬🇧 Chicksands	1,960	2009
39	Cavendish Nuclear cavendishnuclear.com A leading nuclear services provider with international presence, specializing in innovative solutions across the nuclear energy life cycle	Engineering Services	🇬🇧 Birchwood	1,908	n/a
40	NWG (Northumbrian Water Group)nwl.co.uk Provides water and sewerage services to millions in North East and South East England, focusing on customer service and reliability.	Utilities	🇬🇧 Durham	1,866	n/a
41	Solihull Metropolitan Borough Council solihull.gov.uk Local government providing public services, community support, and strategic partnerships to improve health, safety, prosperity, and quality of life for residents.	Government Administration	🇬🇧 Solihull	1,844	1974
42	Harsco Environmental harsco-environmental.com Global leader in environmental services and solutions for the steel industry, focusing on safety, sustainability, and extracting value from waste	Environmental Services	🇬🇧 Leatherhead	1,834	1853
43	South Staffordshire Plc south-staffordshire.com Integrated services group operating regulated water supply businesses and offering waste, infrastructure, compliance, software, and water logistics solutions.	Utilities	🇬🇧 Walsall	1,822	n/a
44	City of York Council york.gov.uk A municipal organization in York delivering essential services to residents, managing properties, supporting businesses, and caring for vulnerable individuals	Government Administration	🇬🇧 York	1,792	n/a
45	Wessex Water wessexwater.co.uk Regional water and sewage treatment services in southwest England, including engineering, construction, property development, waste management, and renewable energy.	Utilities	🇬🇧 Bath	1,765	n/a
46	Warrington Borough Council warrington.gov.uk Local government focused on economic growth, social inclusion, community resilience, workforce wellbeing, and supporting vulnerable populations within the borough.	Government Administration	🇬🇧 Warrington	1,680	1974
47	Safetykleen safetykleeninternational.com Leading provider of chemical cleaning & environmental solutions since 1973, offering products and services to enhance productivity, quality, compliance, and sustainability	Environmental Services	🇬🇧 Brentford	1,514	n/a
48	Keltbray keltbray.com UK specialist engineering contractor, offering engineering, construction, demolition, decommissioning, remediation, environmental services and reinforced concrete frame solutions	Construction	🇬🇧 London	1,500	1976
49	Magnox Ltd gov.uk A UK-based company responsible for managing and operating 12 nuclear sites and a hydroelectric plant, focusing on electricity generation, defuelling, and decommissioning activities	Utilities	🇬🇧 South Gloucestershire	1,474	n/a
50	JN Bentley mottmacbentley.co.uk A UK-based company part of a global consultancy, providing feasibility, design, construction, and engineering services with a turnover exceeding £300 million	Civil Engineering	🇬🇧 Skipton	1,425	1972
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51	South West Water southwestwater.co.uk Provision of high-quality drinking water and wastewater services, maintaining bathing waters, and protecting coastal and river environments in southwest England.	Utilities	🇬🇧 Exeter	1,371	1989
52	SUEZ UK suez.co.uk Provides drinking water, wastewater treatment, waste collection, waste recovery, and renewable energy generation for communities worldwide.	Environmental Services	🇬🇧 Maidenhead	1,369	1988
53	Network Plus networkplus.co.uk Leading UK utility and infrastructure service provider with a workforce of over 3,500, focusing on health and safety, delivering services nationwide	Utilities	🇬🇧 Worsley	1,306	2000
54	MITIE Security Ltd. Strategic outsourcing and energy services provider offering integrated facilities, energy, and property services to support client buildings and infrastructure	Security and Investigations	🇬🇧 Salford	1,270	n/a
55	West Northamptonshire Council westnorthants.gov.uk Local government authority providing public services, community support, and governance for residents of West Northamptonshire area.	Government Administration	🇬🇧 Northampton	1,259	n/a
56	Aggregate Industries UK aggregate.com Supplier of sustainable construction materials focused on creating better built environments through environmentally responsible approaches and innovation.	Construction	🇬🇧 Markfield	1,245	1858
57	GTC gtc-uk.co.uk The company is a leading utility infrastructure provider for house builders, developers, landowners, consultants, and public sector developers nationwide	Utilities	🇬🇧 Bury St Edmunds	1,238	1995
58	Heidelberg Materials UK heidelbergmaterials.co.uk This company is a major supplier of lower carbon heavy building materials, including aggregates, asphalt, cement, and concrete, to the construction industry	Wholesale Building Materials	🇬🇧 Maidenhead	1,235	1964
59	Redcar & Cleveland Borough Council redcar-cleveland.gov.uk Public sector organization focused on improving quality of life by prioritizing children, health, employment, environment, and community involvement through collaborative efforts	Government Administration	🇬🇧 Redcar	1,220	n/a
60	FM Conway Ltd fmconway.co.uk Deliver infrastructure services including design, construction, maintenance, recycling, and asphalt production with a focus on sustainability and innovation.	Construction	🇬🇧 Sevenoaks	1,217	1961
61	Bracknell Forest Council bracknell-forest.gov.uk Local authority providing community services, promoting inclusivity, ambition, and continuous learning to support sustainable and resilient local communities.	Government Administration	🇬🇧 Bracknell	1,210	n/a
62	Morrison Water Services mgroupltd.com This company helps clients maintain resilient assets, ensuring water flow and safe wastewater disposal in local communities with a national workforce	Utilities	🇬🇧 Stevenage	1,133	n/a
63	Viridor viridor.co.uk A UK-based company specializing in resource and waste management, committed to becoming climate positive by 2045, aiming to eliminate waste	Waste Treatment and Disposal	🇬🇧 Taunton	1,096	1957
64	United Kingdom National Nuclear Laboratory uknnl.com National laboratory specializing in nuclear science focused on clean energy, health, environmental restoration, and security for societal benefit.	Research Services	🇬🇧 Warrington	1,095	n/a
65	MWH Treatment mwhtreatment.com A leading UK water sector Design and Build provider with a heritage dating back to 1820, offering end-to-end services for major projects and maintenance	Construction	🇬🇧 Stockport	1,048	n/a
66	Restore plc restoreplc.com The company specializes in information and data management, technology recycling, and commercial relocation services, including data storage, digitization, secure data erasure, and IT recycling	Facilities Services	🇬🇧 Rainham	1,048	n/a
67	Affinity Water affinitywater.co.uk Supply safe, high-quality drinking water daily to millions of customers, focusing on community service and operational excellence.	Utilities	🇬🇧 Hatfield	1,043	n/a
68	Torbay Council torbay.gov.uk A unitary local authority in the UK with a population of over 130,000, providing services in education, highways, waste management, economic development, libraries, and planning	Government Administration	🇬🇧 Torquay	1,031	1968
69	Binnies binnies.com In partnership with industry leaders, we offer comprehensive solutions for water management, infrastructure planning, and environmental sustainability to benefit communities now and in the future	Civil Engineering	🇬🇧 Redhill	1,012	2022
70	Eurocell plc eurocell.co.uk Leading UK manufacturer and distributor of PVC-U profiles with a focus on sustainable design and recycling, offering a wide range of building products and services	Wholesale Building Materials	🇬🇧 South Normanton	998	1974
71	Oxford City Council oxford.gov.uk Focus on sustainable urban development, housing, community engagement, environmental initiatives, and efficient local government services for diverse population.	Government Administration	🇬🇧 Oxford	985	1974
72	FCC Environment fccenvironment.co.uk A leading UK waste management company emphasizing recycling, minimizing landfill waste, and generating green energy through processing waste as a resource	Environmental Services	🇬🇧 Doncaster	963	n/a
73	SOCOTEC UK & Ireland socotec.co.uk Empowering ambitious businesses through testing, inspection, compliance, technical expertise, real estate, and risk management, with a focus on innovation and sustainable delivery.	Environmental Services	🇬🇧 Burton Upon Trent	950	2017
74	Ground Control ground-control.co.uk Maintaining external grounds and landscapes, enhancing biodiversity, and providing services like winter gritting and EV charging for commercial properties while pursuing sustainability goals.	Environmental Services	🇬🇧 Billericay	910	1973
75	D S Smith Packaging dssmith-packaging.com Leading UK corrugated packaging manufacturer offering a wide range of packaging solutions for various industries, providing advisory services and global perspective	Packaging and Containers Manufacturing	🇬🇧 Maidenhead	901	1940
76	Careys careys.co Family-owned construction business operating in UK and Ireland, focusing on quality, safety, innovation, and community impact.	Construction	🇬🇧 King's Cross	870	1969
77	MAG (Mines Advisory Group)maginternational.org Clearance of land contaminated by explosives, reducing civilian risks, and creating safe conditions for development in conflict-affected areas.	Non-profit Organizations	🇬🇧 Manchester	841	1989
78	Mott MacDonald Bentley \| MMB mottmacbentley.co.uk Fully-integrated civil engineering design-and-construct company formed by JN Bentley and Mott MacDonald, delivering water sector projects with strategic focus and client relationships	Civil Engineering	🇬🇧 Skipton	791	n/a
79	JBA Consulting jbaconsulting.com Specializing in climate change resilience, we offer interdisciplinary solutions for clients worldwide by combining analytical, engineering, social, and nature-inspired approaches	Environmental Services	🇬🇧 Skipton	784	1995
80	South East Water UK southeastwater.co.uk Providing high-quality drinking water to 22 million customers in the south east of England through a vast network of pipes Vision to be preferred water supplier and employer	Utilities	🇬🇧 Snodland	740	1992
81	Norse Group A leading service provider offering facilities management, property services, and specialist care facilities through joint venture partnerships across England and Wales	Facilities Services	🇬🇧 Norwich	734	1988
82	Nuclear Waste Services nuclearwasteservices.uk Managing UK's nuclear waste sustainably and innovatively, bringing together leading capabilities for safe and secure waste management for future generations	Environmental Services	🇬🇧 Harwell Campus	686	n/a
83	BRADFORD METROPOLITAN DISTRICT COUNCIL Hospital & health care company located in West Yorkshire, UK Part of the local district council, serving the community's healthcare needs	Hospitals and Health Care	🇬🇧 Bingley	680	n/a
84	idverde UK idverde.co.uk A leading green service provider in the UK, offering a wide range of horticulture and environmental management services nationwide	Environmental Services	🇬🇧 Coventry	643	n/a
85	Adler & Allan adlerandallan.co.uk Environmental and energy infrastructure services focused on asset management, maintenance, emergency response, and supporting sustainability and operational risk reduction.	Environmental Services	🇬🇧 Harrogate	636	1926
86	Norwich City Council norwich.gov.uk Local government authority providing municipal services, community support, urban planning, housing, and public amenities for Norwich residents.	Government Administration	🇬🇧 Norwich	627	1403
87	Selwood Ltd selwood.co.uk Leading UK company providing pump rental services and manufacturing high-quality pumps for water, environmental, and construction sectors worldwide.	Equipment Rental Services	🇬🇧 Eastleigh	623	1946
88	BUUK Infrastructure bu-uk.co.uk The leading independent provider of last-mile utility networks in the UK, pioneering ownership in gas, electricity, water, broadband, and community heat sectors	Utilities	🇬🇧 Bury St Edmunds	589	n/a
89	Atlantica Sustainable Infrastructure Plc atlantica.com Atlantica is a sustainable infrastructure company investing in renewable energy, storage, natural gas, transmission lines, water assets for stable cash flows and growth	Renewables & Environment	🇬🇧 London	586	2014
90	Chelmsford City Council chelmsford.gov.uk A city council serving Chelmsford's growing population, offering support for businesses and residents with a focus on creating a fair, green, safe, and well-connected community	Government Administration	🇬🇧 Chelmsford	574	1974
91	Cedo cedo.com A market leader in consumer household cleaning products, focusing on innovation, environmentally friendly practices, and recycling post-consumer waste into new products	Manufacturing	🇬🇧 Telford	571	1965
92	Glendale glendale-services.co.uk National provider of green services including grass cutting and arboriculture, dedicated to excellence, transparency, and building lasting relationships with clients and employees	Environmental Services	🇬🇧 Chorley	534	1990
93	Avove Utilities avove.co.uk Expert partner transforming UK utilities infrastructure to improve communities with sustainable solutions, leaving a positive legacy while embracing innovation and engagement	Utilities	🇬🇧 Chorley	523	2022
94	Trant Engineering Ltd trant.co.uk A leading UK engineering company with a diverse portfolio in Energy, Process & Water, Defence, and Nuclear sectors, offering innovative engineering solutions globally	Civil Engineering	🇬🇧 Southampton	501	1958
95	APEM apemltd.com Environmental and geospatial consultancy, specializing in marine, freshwater, terrestrial ecology, and geospatial data. A world-class environmental group.	Environmental Services	🇬🇧 Stockport	500	1987
96	Rhodar Ltd rhodar.co.uk Leading company asbestos removal, demolition, remediation, and passive fire protection services across the UK, delivering high-end projects for various sectors.	Environmental Services	🇬🇧 Leeds	500	1976
97	Temple ramboll.com Providing sustainable architecture, engineering, and consultancy services with expanded global reach and multidisciplinary solutions through Ramboll partnership.	Environmental Services	🇬🇧 London	493	1997
98	Nuclear Decommissioning Authority gov.uk Leading nuclear clean-up organization in the UK, responsible for decommissioning 17 sites safely, securely, and cost-effectively to leave them ready for future use	Government Relations Services	🇬🇧 Moor Row	487	2005
99	Restore Information Management restore.co.uk Specializes in secure physical document storage, digital transformation, and data management to help businesses protect and access information efficiently.	Information Services	🇬🇧 Rainham	475	n/a
100	Crawley Borough Council crawley.gov.uk Provision of waste management, housing, planning, leisure, taxation, environmental, and community services for a town of 100,000 people.	Government Administration	🇬🇧 Crawley	466	n/a

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100 leading environmental services companies in England

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