The environmental remediation industry focuses on addressing pollution and restoring contaminated sites. Companies engage in cleaning up hazardous materials, waste management, and ensuring compliance with environmental regulations. With increasing environmental challenges driven by urbanization and climate change, the sector is evolving toward innovative solutions like green technologies and sustainable practices. Driven by regulations and societal demands for sustainability, firms are adopting advanced methodologies for remediation, including bioremediation and integrated waste management, making the industry crucial for securing safer, healthier environments.


This listing features 18 environmental remediation companies, ranging in size from small firms with 11 employees to large enterprises boasting over 5,000. They are headquartered across various locations in the United States, Canada, and the UK, reflecting a strong North American presence. Founded between the 1920s and 2000s, these companies offer specialized services such as remediation, waste management, and ecological assessments. Their commitment to regulatory compliance and environmental sustainability highlights their importance in mitigating ecological damage while supporting industries and municipal projects.


Continue reading to discover the top environmental remediation companies.


Top 18 Environmental Remediation Companies


1. Advanced Waste Services, Inc.

  • Website: covanta.com
  • Ownership type: Private Equity
  • Headquarters: West Allis, Wisconsin, United States (USA)
  • Latest funding: $5.3B, July 2021
  • Founded year: 1992
  • Headcount: 51-200
  • LinkedIn: advanced-waste-services-inc.

Advanced Waste Services, Inc., now known as Reworld, is a waste management company based in West Allis, Wisconsin. Founded in 1992, the company has built a reputation for providing sustainable waste solutions tailored to the needs of businesses and communities. Their services include wastewater treatment, hazardous waste management, and resource recovery, which are essential for helping clients reduce their environmental footprint and comply with regulatory requirements. Reworld serves a variety of industries, such as agriculture, healthcare, and chemical manufacturing, as well as government entities. The company has reported impressive metrics, including the diversion of 19 million tons of waste from landfills annually and the recycling of 250 million gallons of wastewater. This demonstrates their active involvement in promoting sustainability and environmental stewardship.


2. Envirocon

  • Website: envirocon.com
  • Ownership type: Private
  • Headquarters: Missoula, Montana, United States (USA)
  • Employee distribution: United States (USA) 98%, India 2%
  • Founded year: 1988
  • Headcount: 201-500
  • LinkedIn: envirocon

Envirocon, Inc. is an environmental services firm based in Missoula, Montana, with a workforce of approximately 269 employees. Established in 1988, the company specializes in environmental remediation, ecological restoration, and decommissioning and demolition. Envirocon has a proven track record, having completed over 3,500 projects nationwide, which showcases their expertise in addressing complex environmental issues. They serve a variety of clients, including government agencies and private sector companies, across multiple industries such as energy, manufacturing, mining, and oil and gas. The company emphasizes safety and quality in its operations, striving to deliver reliable and effective solutions to environmental challenges. Their commitment to community and environmental stewardship further underscores their role in the industry.


3. Geosyntec Consultants

  • Website: geosyntec.com
  • Ownership type: Private Equity
  • Headquarters: Boca Raton, Florida, United States (USA)
  • Employee distribution: United States (USA) 87%, Canada 7%, Other 6%
  • Latest funding: May 2022
  • Founded year: 1983
  • Headcount: 1001-5000
  • LinkedIn: geosyntec-consultants

Geosyntec Consultants is a consulting and engineering firm based in Boca Raton, Florida, established in 1983. With a workforce of over 2,200 professionals, the company provides a wide array of services in environmental management, civil engineering, and infrastructure development. Geosyntec focuses on helping clients navigate the complexities of contaminated site assessment, water resource management, and compliance with environmental regulations. Their expertise extends to contaminated site assessment and cleanup, where they conduct investigations, develop remediation strategies, and implement solutions for various environmental challenges. The firm also engages in innovative practices related to sustainability and infrastructure safety, supporting clients in both the public and private sectors. Geosyntec's commitment to addressing pressing environmental issues positions them as a significant player in the environmental remediation industry.


4. HydroGeoLogic, Inc.

  • Website: hgl.com
  • Ownership type: Private
  • Headquarters: Reston, Virginia, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1987
  • Headcount: 501-1000
  • LinkedIn: hydrogeologic-inc.

HydroGeoLogic, Inc. (HGL) is an environmental consulting and engineering services firm based in Reston, Virginia. Established in 1987, HGL specializes in environmental cleanup and remediation, addressing complex challenges faced by government and military clients. The company has developed a strong reputation for its expertise in areas such as PFAS response, climate change planning, and advanced modeling services. HGL's commitment to ensuring compliance with environmental regulations is evident in their work across various projects, including Superfund site remediation and military munitions response. With a workforce of approximately 431 employees, HGL continues to innovate and adapt to the evolving environmental landscape, providing solutions that prioritize sustainability and effective resource management.


5. North Wind Group

  • Website: northwindgrp.com
  • Ownership type: Private Equity
  • Headquarters: Idaho Falls, Idaho, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: May 2024
  • Founded year: 1997
  • Headcount: 1001-5000
  • LinkedIn: north-wind-inc-

North Wind Group, based in Idaho Falls, Idaho, is a private equity-owned consulting firm founded in 1997. With a workforce of over 700 employees, the company specializes in environmental consulting, engineering, and construction services. They cater to a wide array of clients, including federal, state, and local agencies, as well as private sector companies. North Wind Group is particularly noted for its environmental services, which include site assessments, hazardous materials remediation, and compliance with environmental regulations. Their projects range from small-scale assessments to large remediation efforts, demonstrating their capability to manage complex environmental challenges. The firm has a strong track record of working with agencies like the U.S. Department of Energy and the Bureau of Land Management, showcasing their expertise in navigating regulatory frameworks and delivering effective remediation solutions. Additionally, North Wind Group has developed a reputation for successfully executing projects in remote and difficult terrains, further enhancing their credibility in the environmental remediation field.


6. Enviropacific

  • Website: enviropacific.com.au
  • Ownership type: Corporate
  • Headquarters: Macquarie Park, New South Wales, Australia
  • Employee distribution: Australia 100%
  • Latest funding: July 2013
  • Founded year: 2001
  • Headcount: 201-500
  • LinkedIn: enviropacific

Enviropacific Services Limited, based in Macquarie Park, New South Wales, Australia, is an environmental services company founded in 2001. With a workforce of approximately 272 employees, the company specializes in remediation, water treatment, and resource recovery. Enviropacific has established itself as a significant player in the environmental sector, particularly in remediation, where it claims to be the largest specialist in Australia. The company has successfully executed numerous landmark remediation projects, demonstrating its capability to manage contaminated sites effectively. Enviropacific also operates SOLVE, one of Australia's largest waste treatment facilities, which focuses on the safe treatment of hazardous industrial wastes. Their services cater to both government and industrial clients, emphasizing their role in ensuring environmental compliance and addressing various environmental challenges. Enviropacific's commitment to sustainability is evident in their operational practices and community engagement initiatives, which aim to create safer environments and sustainable communities.


7. SCS Engineers

  • Website: scsengineers.com
  • Ownership type: Corporate
  • Headquarters: Long Beach, California, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: July 2018
  • Founded year: 1970
  • Headcount: 1001-5000
  • LinkedIn: scs-engineers

SCS Engineers, established in 1970 and headquartered in Long Beach, California, is an employee-owned environmental consulting and construction firm. With a workforce of over 1,100 professionals, the company specializes in a wide array of services that include waste management, site remediation, and renewable energy solutions. SCS Engineers has a notable history of involvement in significant environmental projects, particularly in the areas of brownfields redevelopment and hazardous waste management. They assist clients across various industries, including construction, healthcare, and government, in navigating complex environmental regulations and implementing sustainable practices. Their innovative approach to environmental challenges is evident in their development of technologies for landfill gas management, carbon sequestration, and energy systems. SCS Engineers has also been recognized for their contributions to the field, receiving awards and accolades for their work in environmental sustainability and compliance.


8. EnviroTrac Ltd.

  • Website: envirotrac.com
  • Ownership type: Private
  • Headquarters: Yaphank, New York, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1993
  • Headcount: 51-200
  • LinkedIn: envirotrac

EnviroTrac Ltd., based in Yaphank, New York, is an environmental consulting firm that specializes in providing solutions for environmental management, remediation, and construction. Established in 1993, the company has built a reputation for addressing environmental challenges faced by both businesses and government agencies. EnviroTrac offers a wide array of services, including due diligence and site assessments, emergency spill response, groundwater remediation, and environmental compliance. They also engage in environmental construction, ensuring that projects meet high environmental standards. The firm operates through a network of over 130 professionals, many of whom hold advanced licenses in their fields. EnviroTrac's commitment to safety is evident in their rigorous safety protocols and their achievement of over 2 million hours without a lost time accident. Their ability to provide tailored solutions to complex environmental issues positions them as a relevant player in the environmental remediation industry.


9. Weston Solutions, Inc.

  • Website: westonsolutions.com
  • Ownership type: Private
  • Headquarters: West Chester, Pennsylvania, United States (USA)
  • Employee distribution: United States (USA) 97%, Other 3%
  • Founded year: 1957
  • Headcount: 1001-5000
  • LinkedIn: weston-solutions-inc-

Weston Solutions, Inc. is a private, employee-owned company based in West Chester, Pennsylvania, specializing in environmental and infrastructure services. Founded in 1957, Weston has built a reputation for tackling complex challenges in environmental remediation, compliance, and infrastructure improvements. The firm serves a variety of clients, including government agencies and industrial sectors, providing tailored solutions that prioritize sustainability and community welfare. Their services include remediation of contaminated sites, investigation of PFAS, and management of oil and gas well plugging. With a workforce of over 1,400 employees, Weston is committed to delivering effective and environmentally responsible solutions, reflecting their dedication to making a positive impact in the communities they serve.


10. Environmental Consulting & Technology, Inc. (ECT)

  • Website: ectinc.com
  • Ownership type: Private
  • Headquarters: Gainesville, Florida, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1988
  • Headcount: 201-500
  • LinkedIn: ectinc

Environmental Consulting & Technology, Inc. (ECT), founded in 1988 and based in Gainesville, Florida, is a private environmental consulting firm with a workforce of approximately 304 employees. The company provides a wide array of services, including ecological assessments, remediation, and sustainability planning. ECT serves a broad spectrum of clients, including businesses and government entities, assisting them in navigating complex environmental regulations and implementing effective ecological solutions. Their expertise spans multiple markets, such as power and energy, infrastructure, land development, and natural resources. ECT has a notable track record in remediation and redevelopment projects, demonstrating their capability in transforming contaminated sites into usable land. Their commitment to sustainability and community engagement is evident in their long-term projects, such as the Depot Park transformation in Gainesville, which highlights their role in ecological restoration. ECT's focus on compliance and sustainability further underscores their relevance in the environmental consulting industry.


11. Envirochem Services Inc.

  • Website: envirochem.com
  • Ownership type: Private
  • Headquarters: North Vancouver, British Columbia, Canada
  • Employee distribution: Canada 100%
  • Founded year: 1984
  • Headcount: 11-50
  • LinkedIn: envirochem-services-inc-

Envirochem Services Inc. is an environmental consulting firm based in North Vancouver, British Columbia, Canada. Founded in 1984, the company has built a solid reputation in the environmental consulting industry. With a team of professionals that includes engineers, scientists, and technologists, Envirochem provides a wide array of services aimed at addressing environmental challenges. Their offerings include environmental assessments, EHS management, and technology solutions tailored to meet the needs of clients across various sectors such as agriculture, mining, oil and gas, and government. The firm has successfully completed over 5000 projects, showcasing their extensive experience and capability in managing complex environmental issues. Envirochem is committed to helping clients navigate environmental regulations and achieve compliance while promoting sustainability and health and safety in their operations.


12. EA Engineering, Science, and Technology, Inc., PBC


EA Engineering, Science, and Technology, Inc., PBC, founded in 1973 and based in Cockeysville, Maryland, is an environmental consulting and engineering services firm. With a workforce of approximately 825 employees, the company provides a wide array of solutions tailored to federal, state, municipal, and private sector clients. Their services include contaminated site assessment and remediation, which is critical for addressing environmental hazards. They also focus on chemicals and contaminants of emerging concern, climate change strategies, and natural resource management. As a public benefit corporation, EA emphasizes sustainability and community support, integrating these principles into their operations. Their commitment to improving environmental quality is evident in their approach to complex environmental challenges, where they apply interdisciplinary strategies to develop effective and sustainable solutions. EA's reputation for technical expertise and responsive service further solidifies their position in the environmental sector.


13. Roux

  • Website: rouxinc.com
  • Ownership type: Corporate
  • Headquarters: Islandia, New York, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: May 2021
  • Founded year: 1981
  • Headcount: 201-500
  • LinkedIn: roux-associates

Roux is an environmental consulting firm based in Islandia, New York, with a workforce of approximately 442 employees. Founded in 1981, the company has built a reputation for providing comprehensive environmental, health, and safety compliance services. Roux serves both private and public sector clients, assisting them in navigating complex environmental regulations and managing contamination risks. Their service offerings include ecological risk assessments, engineering and remediation services, and litigation support. Roux has worked on a variety of projects, including those involving brownfields, landfills, and industrial facilities, showcasing their capability to handle diverse environmental challenges. The firm also emphasizes sustainable practices through their green remediation initiatives, which aim to minimize environmental impact while addressing contamination issues.


14. TerranearPMC

  • Website: terranearpmc.com
  • Ownership type: Private
  • Headquarters: Exton, Pennsylvania, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2004
  • Headcount: 51-200
  • LinkedIn: terranearpmc

TerranearPMC, founded in 2004 and based in Exton, Pennsylvania, is a private environmental consulting and engineering services firm. The company specializes in environmental remediation, waste management, and renewable energy solutions. With a workforce of approximately 66 employees, TerranearPMC has built a reputation for delivering high-quality services to federal, state, and municipal agencies. Their core service areas include environmental engineering, radiological services, groundwater treatment, and compliance consulting. The firm has successfully completed numerous projects, showcasing their expertise in managing contaminated sites and addressing complex environmental challenges. Their commitment to safety is evident in their Zero Accident culture, which emphasizes the prevention of workplace incidents. TerranearPMC's focus on sustainability and innovative approaches positions them as a significant player in the environmental services industry.


15. Groundwater & Environmental Services, Inc.


Groundwater & Environmental Services, Inc. (GES) is an environmental consulting firm based in Wall Township, New Jersey, with a workforce of approximately 413 employees. Established in 1985, GES specializes in a wide array of services that address environmental challenges faced by businesses and organizations. Their expertise includes air quality management, brownfield restoration, ecological assessments, and various remediation services. GES has a strong presence in sectors such as oil and gas, industrial, and government, providing essential support for compliance with environmental regulations. The company is known for its proactive approach to environmental due diligence and risk management, helping clients navigate complex regulatory landscapes. GES has also been recognized for its innovative use of technology, including the deployment of small unmanned aircraft systems for data collection and site assessments. Their commitment to safety and quality is evident in their operational practices, making them a trusted partner in environmental remediation efforts.


16. EnviroVantage, Inc

  • Website: envirovantage.com
  • Ownership type: Private
  • Headquarters: Epping, New Hampshire, United States (USA)
  • Employee distribution: United States (USA) 94%, Puerto Rico 6%
  • Founded year: 1985
  • Headcount: 51-200
  • LinkedIn: envirovantage

EnviroVantage, Inc. is an environmental remediation and demolition company based in Epping, New Hampshire. Established in 1985, the firm specializes in hazardous material abatement, particularly asbestos and lead, alongside providing indoor air quality services. With a workforce of approximately 69 employees, EnviroVantage serves a wide array of clients, including federal and state government agencies, general contractors, educational institutions, and homeowners. The company prides itself on its safety culture, maintaining a low experience modification rate (EMR) of 0.67 in 2023, which reflects its commitment to workplace safety. EnviroVantage operates multiple offices across the United States and Puerto Rico, allowing it to manage projects in various locations. The firm handles over 500 contracts annually, showcasing its active engagement in the industry. Their services extend beyond abatement to include demolition and site restoration, making them a comprehensive solution for environmental remediation needs.


17. Environmental Works, Inc.


Environmental Works, Inc. is an environmental consulting firm based in Springfield, Missouri, established in 1992. The company specializes in a wide array of services, including remediation, demolition, and emergency response. With a workforce of approximately 246 employees, Environmental Works, Inc. caters to businesses and organizations that require expertise in environmental compliance and risk management. Their service portfolio includes site characterization, environmental risk assessment, and brownfields redevelopment, showcasing their involvement in critical remediation efforts. The company emphasizes safety and innovative solutions, ensuring that they address environmental challenges effectively. They have built a reputation for reliability and thoroughness, making them a trusted partner for clients across various sectors. Environmental Works, Inc. operates primarily within the United States, with a strong focus on local and regional projects.


18. Adler & Allan

  • Website: adlerandallan.co.uk
  • Ownership type: Private Equity
  • Headquarters: Harrogate, England, United Kingdom (UK)
  • Employee distribution: United Kingdom (UK) 100%
  • Latest funding: April 2024
  • Founded year: 1926
  • Headcount: 501-1000
  • LinkedIn: adler-and-allan-ltd

Adler & Allan, based in Harrogate, England, is an environmental services provider with a history dating back to 1926. The company specializes in risk reduction and compliance management, offering a wide range of services that include consultancy, asset management, and incident response. They cater to various sectors such as utilities, energy, and construction, helping clients manage environmental challenges effectively. Their services include contaminated land management, water quality monitoring, and ecological assessments, all aimed at achieving sustainability goals. Adler & Allan is also involved in energy transition initiatives, supporting clients in adapting to new energy infrastructures while maintaining compliance with environmental regulations. With a workforce of approximately 555 employees, the company operates entirely within the UK, ensuring a focused approach to local environmental issues.



Environmental Remediation Insights: Key Companies


CompanyHeadquarterSizeFoundedOwnership
Advanced Waste Services, Inc.West Allis, Wisconsin, United States (USA)51-2001992Private Equity
EnviroconMissoula, Montana, United States (USA)201-5001988Private
Geosyntec ConsultantsBoca Raton, Florida, United States (USA)1001-50001983Private Equity
HydroGeoLogic, Inc.Reston, Virginia, United States (USA)501-10001987Private
North Wind GroupIdaho Falls, Idaho, United States (USA)1001-50001997Private Equity
EnviropacificMacquarie Park, New South Wales, Australia201-5002001Corporate
SCS EngineersLong Beach, California, United States (USA)1001-50001970Corporate
EnviroTrac Ltd.Yaphank, New York, United States (USA)51-2001993Private
Weston Solutions, Inc.West Chester, Pennsylvania, United States (USA)1001-50001957Private
Environmental Consulting & Technology, Inc. (ECT)Gainesville, Florida, United States (USA)201-5001988Private
Envirochem Services Inc.North Vancouver, British Columbia, Canada11-501984Private
EA Engineering, Science, and Technology, Inc., PBCCockeysville, Maryland, United States (USA)501-10001973Private
RouxIslandia, New York, United States (USA)201-5001981Corporate
TerranearPMCExton, Pennsylvania, United States (USA)51-2002004Private
Groundwater & Environmental Services, Inc.Wall Township, New Jersey, United States (USA)201-5001985Private
EnviroVantage, IncEpping, New Hampshire, United States (USA)51-2001985Private
Environmental Works, Inc.Springfield, Missouri, United States (USA)201-5001992Private
Adler & AllanHarrogate, England, United Kingdom (UK)501-10001926Private Equity


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