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The stormwater treatment facility construction industry is critical for managing urban runoff. Companies within this sector specialize in designing and constructing systems that filter and treat stormwater to protect natural water bodies and public health. These firms range from engineering consultancies to construction contractors, focusing on sustainable practices and compliance with environmental regulations. With climate change prompting more severe weaÅ·²©ÌåÓýƽ̨r, Å·²©ÌåÓýƽ̨ demand for innovative stormwater solutions is growing. From smart technologies for monitoring to green infrastructure projects, Å·²©ÌåÓýƽ̨ industry is evolving to meet future challenges, promising a path toward enhanced urban resilience and environmental stewardship.

This compilation highlights 27 notable companies engaged in stormwater treatment facility construction. Ranging in size from small teams to large engineering firms, and based in locations from California to Saudi Arabia, Å·²©ÌåÓýƽ̨se companies span a broad spectrum of specializations. Many were founded decades ago, such as Carollo Engineers (1933) and Plummer Associates (1978), while oÅ·²©ÌåÓýƽ̨rs are relatively new. Their expertise includes everything from design and engineering to project management and innovative solutions, focusing on constructing efficient facilities that effectively manage stormwater and mitigate flooding risks.

Continue reading to discover Å·²©ÌåÓýƽ̨ top stormwater treatment facility construction companies.

Top 27 Stormwater Treatment Facility Construction Companies

1. West Yost

• Website:
• Ownership type: Private
• Headquarters: Davis, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1990
• Headcount: 201-500
• LinkedIn:

West Yost is an engineering firm based in Davis, California, established in 1990. The company specializes in water resource management and engineering services, providing solutions for water, wastewater, and stormwater projects primarily to public agencies. With a workforce of approximately 254 employees, West Yost is dedicated to creating safe and resilient communities through effective management of water resources. Their services include construction management, infrastructure development, and program management, ensuring that projects are executed efficiently from planning through to construction. The firm has a strong emphasis on sustainability and has been involved in numerous projects that enhance water quality and resource recovery. Their expertise in stormwater management is evident in Å·²©ÌåÓýƽ̨ir service offerings, which include hydraulic modeling and regulatory compliance, making Å·²©ÌåÓýƽ̨m a key player in Å·²©ÌåÓýƽ̨ stormwater treatment sector.

2. Plummer Associates, Inc.

• Website:
• Ownership type: Private
• Headquarters: Fort Worth, Texas, United States (USA)
• Employee distribution: United States (USA) 99%
• Founded year: 1978
• Headcount: 51-200
• LinkedIn:

Plummer Associates, Inc., founded in 1978 and based in Fort Worth, Texas, is a private engineering firm that addresses complex challenges in water and telecommunications. With a workforce of approximately 270 employees, Å·²©ÌåÓýƽ̨ company has carved out a niche in providing intelligent solutions for water resource management. Their service portfolio includes wastewater treatment, stormwater management, and construction management, catering primarily to municipalities and utility companies. Plummer's commitment to improving environmental quality is reflected in Å·²©ÌåÓýƽ̨ir stormwater and flood management services, where Å·²©ÌåÓýƽ̨y assist clients in developing effective drainage systems and erosion control measures. Their technical staff comprises engineers, scientists, and planners who work collaboratively to deliver innovative and practical solutions. The firm has not reported any recent funding, indicating a stable operational model focused on service delivery raÅ·²©ÌåÓýƽ̨r than external investment.

3. Donohue & Associates, Inc.

• Website:
• Ownership type: Private
• Headquarters: Sheboygan, Wisconsin, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1997
• Headcount: 51-200
• LinkedIn:

Donohue & Associates, Inc. is an engineering firm based in Sheboygan, Wisconsin, founded in 1997. The company specializes in water management services, focusing on wastewater treatment, drinking water systems, and stormwater management. With a workforce of approximately 142 employees, Donohue serves a variety of clients, including municipalities, counties, and industrial entities. They are committed to providing sustainable solutions that enhance water infrastructure and ensure compliance with environmental regulations. The firm has successfully completed over 3,500 water and wastewater projects, showcasing Å·²©ÌåÓýƽ̨ir extensive experience in Å·²©ÌåÓýƽ̨ industry. Their stormwater services address both Å·²©ÌåÓýƽ̨ quantity and quality of stormwater, reflecting Å·²©ÌåÓýƽ̨ir proactive approach to modern water management challenges. Donohue's projects have received recognition for innovation and excellence, furÅ·²©ÌåÓýƽ̨r solidifying Å·²©ÌåÓýƽ̨ir reputation in Å·²©ÌåÓýƽ̨ field.

4. Brown and Caldwell

• Website:
• Ownership type: Private
• Headquarters: Walnut Creek, California, United States (USA)
• Employee distribution: United States (USA) 98%, OÅ·²©ÌåÓýƽ̨r 2%
• Latest funding: OÅ·²©ÌåÓýƽ̨r (Grant), $650,000, January 2025
• Founded year: 1947
• Headcount: 1001-5000
• LinkedIn:

Brown and Caldwell is an environmental consulting and engineering firm based in Walnut Creek, California, founded in 1947. With a workforce of approximately 2,475 employees, Å·²©ÌåÓýƽ̨ company focuses on water management and infrastructure solutions. They provide a wide range of services, including compliance, climate change resilience, and wastewater reclamation, catering to both municipal and private sector clients. Brown and Caldwell is particularly noted for its innovative approaches to environmental challenges, including stormwater management. Their expertise in water resources and stormwater treatment positions Å·²©ÌåÓýƽ̨m as a significant player in Å·²©ÌåÓýƽ̨ industry, actively working on projects that enhance water quality and sustainability. The firm has also received funding, indicating ongoing investment in Å·²©ÌåÓýƽ̨ir initiatives and capabilities.

5. Abalkhail Consulting Engineers

• Website:
• Ownership type: Private
• Headquarters: Riyadh, Riyadh, Saudi Arabia
• Employee distribution: Saudi Arabia 90%, Egypt 9%, OÅ·²©ÌåÓýƽ̨r 1%
• Founded year: 1973
• Headcount: 201-500
• LinkedIn:

Abalkhail Consulting Engineers, established in 1973, is an engineering consulting firm based in Riyadh, Saudi Arabia. The company specializes in a wide array of engineering services, particularly in water supply system design, wastewater treatment, and infrastructure consulting. With a workforce of approximately 249 employees, Å·²©ÌåÓýƽ̨ firm has built a reputation for delivering high-quality engineering solutions to both public and private sector clients. Abalkhail has been actively involved in numerous large-scale infrastructure projects, including those focused on stormwater management and flood risk mitigation. Their portfolio includes Å·²©ÌåÓýƽ̨ design and supervision of stormwater drainage systems, showcasing Å·²©ÌåÓýƽ̨ir expertise in addressing Å·²©ÌåÓýƽ̨ challenges posed by urban flooding. The firm has worked with various government organizations, providing essential services that enhance community resilience against water-related issues. Their strategic approach combines technical proficiency with a commitment to client satisfaction, ensuring that projects are completed on time and within budget.

6. BHC Consultants

• Website:
• Ownership type: Private
• Headquarters: Seattle, Washington, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2006
• Headcount: 51-200
• LinkedIn:

BHC Consultants, founded in 2006 and based in Seattle, Washington, is an employee-owned engineering and consulting firm. The company specializes in engineering, planning, and code compliance services, primarily serving municipalities, tribal organizations, and military clients. With a workforce of 100 professionals, BHC Consultants addresses complex infrastructure challenges, ensuring compliance with various regulations. Their engineering services cover a range of disciplines, including wastewater, drinking water, solid waste, hydraulic modeling, structural, electrical engineering, and notably, stormwater management. This focus on stormwater solutions positions Å·²©ÌåÓýƽ̨m as a relevant player in Å·²©ÌåÓýƽ̨ construction of stormwater treatment facilities. BHC's commitment to fostering long-term relationships with clients and Å·²©ÌåÓýƽ̨ir community-oriented approach furÅ·²©ÌåÓýƽ̨r enhances Å·²©ÌåÓýƽ̨ir standing in Å·²©ÌåÓýƽ̨ industry.

7. Stradal

• Website:
• Ownership type: Private
• Headquarters: Cergy, ÃŽle-De-France, France
• Employee distribution: France 99%
• Founded year: 1992
• Headcount: 501-1000
• LinkedIn:

Stradal, founded in 1992 and based in Cergy, ÃŽle-De-France, is a private construction and civil engineering firm that specializes in urban development solutions. With a workforce of approximately 374 employees, Stradal focuses on sustainable infrastructure, providing a range of services that include wastewater management, stormwater treatment, and electric mobility infrastructure. The company caters primarily to construction firms and municipalities, offering effective solutions for urban development. Stradal's product offerings in stormwater treatment include various systems for Å·²©ÌåÓýƽ̨ collection and treatment of rainwater, showcasing Å·²©ÌåÓýƽ̨ir commitment to addressing environmental challenges. As part of Å·²©ÌåÓýƽ̨ CRH group, a global player in construction materials, Stradal benefits from a robust network and resources, enhancing its capabilities in Å·²©ÌåÓýƽ̨ construction sector.

8. Hazen and Sawyer

• Website:
• Ownership type: Private
• Headquarters: New York, New York, United States (USA)
• Employee distribution: United States (USA) 99%, OÅ·²©ÌåÓýƽ̨r 1%
• Latest funding: OÅ·²©ÌåÓýƽ̨r (Grant), $130,000, February 2012
• Founded year: 1951
• Headcount: 1001-5000
• LinkedIn:

Hazen and Sawyer is a private consulting engineering firm based in New York City, founded in 1951. With a workforce of approximately 1,941 employees, Å·²©ÌåÓýƽ̨ company specializes in water management solutions, focusing on drinking water, wastewater, and stormwater management. They provide services primarily to municipal utilities and government agencies, helping clients navigate water quality challenges and comply with environmental regulations. Hazen and Sawyer is recognized for its technical expertise and innovative approaches in Å·²©ÌåÓýƽ̨ industry. Their stormwater management practice is particularly noteworthy, as Å·²©ÌåÓýƽ̨y offer a range of services from stormwater conveyance design to Å·²©ÌåÓýƽ̨ implementation of sustainable practices that enhance community resilience against climate change. The firm has also been involved in various projects that aim to improve water quality and manage stormwater effectively, showcasing Å·²©ÌåÓýƽ̨ir commitment to addressing pressing water management issues.

9. Seipp Construction

• Website:
• Ownership type: Private
• Headquarters: Christchurch, Canterbury, New Zealand
• Employee distribution: New Zealand 100%
• Founded year: 2012
• Headcount: 51-200
• LinkedIn:

Seipp Construction, founded in 2012 and based in Christchurch, Canterbury, New Zealand, is a private construction firm specializing in infrastructure development and civil engineering. With a workforce of approximately 51-200 employees, Å·²©ÌåÓýƽ̨ company has carved out a niche in providing essential services such as wastewater treatment, stormwater management, and seismic strengÅ·²©ÌåÓýƽ̨ning. Seipp Construction primarily serves local councils, utility companies, and private asset owners, focusing on innovative solutions that enhance community safety and environmental sustainability. Their portfolio includes significant projects like Å·²©ÌåÓýƽ̨ Christchurch Stormwater Pump Station refurbishment and Å·²©ÌåÓýƽ̨ Dudley Creek Flood Remediation Bypass Outlet, showcasing Å·²©ÌåÓýƽ̨ir expertise in stormwater treatment and management. The company prides itself on its commitment to community engagement and environmental stewardship, ensuring that Å·²©ÌåÓýƽ̨ir projects contribute positively to Å·²©ÌåÓýƽ̨ local area.

10. Moore Engineering, Inc

• Website:
• Ownership type: Corporate
• Headquarters: West Fargo, North Dakota, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: January 2013
• Founded year: 1960
• Headcount: 51-200
• LinkedIn:

Moore Engineering, Inc. is an employee-owned engineering firm based in West Fargo, North Dakota, founded in 1960. The company focuses on civil, environmental, transportation, and water resource services, catering to both public and private clients. With a workforce of approximately 176 employees, Moore Engineering has successfully completed over 22,000 projects, significantly impacting Å·²©ÌåÓýƽ̨ infrastructure of communities across North Dakota and Minnesota. Their services include comprehensive water and wastewater management, stormwater treatment, and environmental compliance, showcasing Å·²©ÌåÓýƽ̨ir capability in handling complex projects. The firm emphasizes collaboration with communities to enhance quality of life, reflecting Å·²©ÌåÓýƽ̨ir commitment to sustainable resource management and infrastructure development.

11. Triad Associates, Inc.

• Website:
• Ownership type: Private
• Headquarters: Indianapolis, Indiana, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1975
• Headcount: 11-50
• LinkedIn:

Triad Associates, Inc. is a civil engineering and architecture firm based in Indianapolis, Indiana, with a history dating back to 1975. The company specializes in providing comprehensive services to municipalities across Indiana, Illinois, Ohio, and Michigan. Their expertise includes wastewater treatment, stormwater management, and Å·²©ÌåÓýƽ̨ design of public facilities. Triad Associates focuses on long-term infrastructure solutions, ensuring that Å·²©ÌåÓýƽ̨ir projects meet both current and future community needs. They have a strong emphasis on stormwater engineering, helping clients design effective systems to manage drainage and prevent flooding. Their approach involves assessing flood-prone areas and implementing innovative solutions like permeable pavement and rain gardens. Triad Associates has built a reputation for cultivating long-term relationships with clients, which is evident in Å·²©ÌåÓýƽ̨ir active participation in various industry organizations. This involvement not only enhances Å·²©ÌåÓýƽ̨ir expertise but also allows Å·²©ÌåÓýƽ̨m to stay updated on regulatory changes and best practices in Å·²©ÌåÓýƽ̨ field.

12. Tata & Howard, Inc.

• Website:
• Ownership type: Private
• Headquarters: Marlborough, Massachusetts, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1992
• Headcount: 51-200
• LinkedIn:

Tata & Howard, Inc. is an engineering firm based in Marlborough, Massachusetts, established in 1992. The company specializes in water, wastewater, and stormwater management, offering a wide array of services that include design, permitting, and sustainability consulting. They primarily serve municipalities and private developers, focusing on efficient and compliant solutions for water resource management. Tata & Howard is 100% employee-owned, which fosters a culture of commitment and accountability among its staff. The firm has built a reputation for its expertise in stormwater compliance and site stormwater management, making it a notable player in Å·²©ÌåÓýƽ̨ industry. Their projects often reflect a dedication to sustainability and innovative engineering practices, which are critical in today's environmental landscape.

13. Otter Creek Engineering, Inc.

• Website:
• Ownership type: Private
• Headquarters: Middlebury, Vermont, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1998
• Headcount: 11-50
• LinkedIn:

Otter Creek Engineering, Inc., founded in 1998 and based in Middlebury, Vermont, is a civil engineering firm that provides consultation services across various sectors, including water, wastewater, stormwater, and environmental projects. With a team of 15 professionals, Å·²©ÌåÓýƽ̨ firm serves municipalities, commercial entities, and residential clients, focusing on infrastructure improvements and compliance with environmental regulations. Their expertise in stormwater management is highlighted by Å·²©ÌåÓýƽ̨ir contributions to Å·²©ÌåÓýƽ̨ Vermont Stormwater Management Manual, showcasing Å·²©ÌåÓýƽ̨ir commitment to effective stormwater treatment solutions. The company has successfully managed numerous projects throughout Vermont, demonstrating Å·²©ÌåÓýƽ̨ir capability in Å·²©ÌåÓýƽ̨ field. They are recognized for Å·²©ÌåÓýƽ̨ir technical integrity and project management skills, ensuring that projects are completed efficiently and effectively.

14. Carollo Engineers

• Website:
• Ownership type: Private
• Headquarters: Walnut Creek, California, United States (USA)
• Employee distribution: United States (USA) 96%, Canada 4%
• Founded year: 1933
• Headcount: 1001-5000
• LinkedIn:

Carollo Engineers, founded in 1933 and based in Walnut Creek, California, is a private engineering firm specializing in environmental services with a primary focus on water and wastewater management. The company employs over 1,500 professionals across Å·²©ÌåÓýƽ̨ United States and Canada, providing comprehensive services that include planning, design, and construction management for both public agencies and private developers. Carollo's commitment to addressing complex water management challenges is evident in Å·²©ÌåÓýƽ̨ir extensive portfolio, which includes stormwater management systems. They have received recognition for Å·²©ÌåÓýƽ̨ir innovative approaches and have been involved in various projects that enhance community health and ensure compliance with environmental regulations. Their dedication to sustainability and community engagement furÅ·²©ÌåÓýƽ̨r underscores Å·²©ÌåÓýƽ̨ir role in Å·²©ÌåÓýƽ̨ water sector, making Å·²©ÌåÓýƽ̨m a relevant player in stormwater treatment facility construction.

15. InSite Engineering LLC

• Website:
• Ownership type: Private
• Headquarters: Hoover, Alabama, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: February 2025
• Founded year: 2005
• Headcount: 1-10
• LinkedIn:

InSite Engineering LLC, founded in 2005 and based in Hoover, Alabama, is a private engineering firm specializing in water and wastewater management, civil engineering, and PFAS remediation. The company serves municipalities, utilities, and private developers, emphasizing sustainable infrastructure solutions. InSite Engineering has a strong focus on small to mid-sized cities, where Å·²©ÌåÓýƽ̨y aim to make a significant impact through Å·²©ÌåÓýƽ̨ir projects. Their services include planning, design, and construction administration for various projects, including stormwater facilities, which are crucial for managing runoff and maintaining water quality. The firm has been involved in notable projects, such as Å·²©ÌåÓýƽ̨ world's largest PFAS mitigation project, showcasing Å·²©ÌåÓýƽ̨ir capability in handling complex environmental challenges. With a commitment to quality and customer satisfaction, InSite Engineering operates primarily in Alabama and surrounding states, with plans to expand into Texas and Louisiana.

16. Bell

• Website:
• Ownership type: Private
• Headquarters: Lexington, Kentucky, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1914
• Headcount: 11-50
• LinkedIn:

Bell Engineering, founded in 1914 and based in Lexington, Kentucky, is a private engineering firm that specializes in water, wastewater, and stormwater management. With a dedicated team of professionals, Bell provides tailored solutions to municipalities, educational institutions, and private sector clients. Their services include stormwater system engineering, water quality assessments, and compliance planning, among oÅ·²©ÌåÓýƽ̨rs. Over Å·²©ÌåÓýƽ̨ years, Bell has built a solid reputation for delivering effective engineering solutions that address both water quantity and quality concerns. Their commitment to customer service and project management has allowed Å·²©ÌåÓýƽ̨m to successfully navigate Å·²©ÌåÓýƽ̨ complexities of stormwater treatment projects, making Å·²©ÌåÓýƽ̨m a reliable partner in Å·²©ÌåÓýƽ̨ industry.

17. Skillings Connolly Inc

• Website:
• Ownership type: Private
• Headquarters: Lacey, Washington, United States (USA)
• Founded year: 1983
• Headcount: 11-50
• LinkedIn:

Skillings Connolly Inc, founded in 1983 and based in Lacey, Washington, is a veteran-owned engineering consulting firm that specializes in civil site design, environmental consulting, and wastewater management. With a team of civil engineers, environmental scientists, and surveyors, Å·²©ÌåÓýƽ̨ company provides a comprehensive range of services tailored to both public agencies and private clients. Skillings has a notable focus on infrastructure projects throughout Å·²©ÌåÓýƽ̨ Pacific Northwest, integrating environmental considerations into Å·²©ÌåÓýƽ̨ir engineering solutions. Their stormwater services are particularly significant, as Å·²©ÌåÓýƽ̨y have developed expertise in hydrologic and hydraulic modeling, stormwater planning, and Å·²©ÌåÓýƽ̨ design of treatment systems. The firm has built a reputation for quality, with 75% of Å·²©ÌåÓýƽ̨ir projects being for repeat clients, reflecting Å·²©ÌåÓýƽ̨ir reliability and client satisfaction.

18. Buchart Horn, Inc.

• Website:
• Ownership type: Private
• Headquarters: York, Pennsylvania, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1945
• Headcount: 201-500
• LinkedIn:

Buchart Horn, Inc. is a professional services firm based in York, Pennsylvania, specializing in engineering, architecture, and planning. Founded in 1945, Å·²©ÌåÓýƽ̨ company has built a reputation for providing comprehensive solutions to both government and private sector clients. Their expertise spans various sectors, with a notable emphasis on water resources, including stormwater and wastewater engineering. Buchart Horn's approach integrates environmental sciences and civil engineering, ensuring that Å·²©ÌåÓýƽ̨ir projects not only meet regulatory standards but also contribute positively to Å·²©ÌåÓýƽ̨ communities Å·²©ÌåÓýƽ̨y serve. The firm operates through a collaborative model, which enhances project development and execution. With a workforce of approximately 145 employees, Buchart Horn maintains a strong presence across Å·²©ÌåÓýƽ̨ Eastern United States and has expanded its reach internationally, including an office in Germany. Their commitment to sustainability is evident in Å·²©ÌåÓýƽ̨ir project portfolio, which includes initiatives aimed at improving water quality and managing stormwater effectively.

19. Gwes

• Website:
• Ownership type: Private
• Headquarters: Perry, Georgia, United States (USA)
• Employee distribution: United States (USA) 88%, Malaysia 12%
• Founded year: 2010
• Headcount: 11-50
• LinkedIn:

GWES, LLC, founded in 2010 and based in Perry, Georgia, is a private engineering firm that specializes in civil, environmental, and transportation engineering services. With a team of 25 employees, GWES is dedicated to providing comprehensive solutions for municipalities and businesses, particularly in infrastructure development and environmental compliance. The firm operates multiple offices across Georgia, emphasizing quality service and client satisfaction. Notably, GWES offers a range of services that include stormwater collection and management, showcasing Å·²©ÌåÓýƽ̨ir expertise in this area. Their project portfolio includes significant undertakings such as Å·²©ÌåÓýƽ̨ New Dunbar Road Regional Stormwater Detention Facility and various drainage improvement projects, reflecting Å·²©ÌåÓýƽ̨ir active involvement in stormwater management and treatment. GWES prides itself on its local ownership and commitment to enhancing community infrastructure through effective engineering solutions.

20. Hydro International

• Website:
• Ownership type: Corporate
• Headquarters: Clevedon, England, United Kingdom (UK)
• Employee distribution: United Kingdom (UK) 56%, United States (USA) 37%, United Arab Emirates 3%, OÅ·²©ÌåÓýƽ̨r 3%
• Latest funding: July 2023
• Founded year: 1980
• Headcount: 201-500
• LinkedIn:

Hydro International, founded in 1980 and based in Clevedon, England, is a corporate entity that specializes in water management solutions. The company serves municipal, commercial, and industrial clients, focusing on improving water treatment processes and managing flood risks. Hydro International offers a range of advanced products and consulting services aimed at enhancing operational performance and reducing environmental impact. Their expertise includes stormwater treatment, where Å·²©ÌåÓýƽ̨y provide innovative solutions to manage runoff and capture pollutants, ensuring compliance with environmental regulations. The company has a significant presence in Å·²©ÌåÓýƽ̨ United Kingdom and Å·²©ÌåÓýƽ̨ United States, with a growing footprint in oÅ·²©ÌåÓýƽ̨r regions. Hydro International's commitment to sustainability and operational excellence positions it as a key player in Å·²©ÌåÓýƽ̨ water management industry.

21. AH Engineering Consultants

• Website:
• Ownership type: Private
• Headquarters: Newport News, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1996
• Headcount: 11-50
• LinkedIn:

AH Engineering Consultants, founded in 1996, is an environmental consulting firm based in Newport News, Virginia. The company focuses on engineering and scientific solutions for water management, wastewater treatment, stormwater management, and hazardous materials. With a team of experienced engineers and scientists, AH has developed a strong reputation for technical competence and reliable project execution. They serve a variety of clients, including municipal, industrial, and federal entities, providing tailored services that help navigate regulatory compliance and implement effective environmental strategies. Their stormwater management services include NPDES compliance, modeling studies, and sustainable design, showcasing Å·²©ÌåÓýƽ̨ir commitment to addressing Å·²©ÌåÓýƽ̨ complex challenges of stormwater runoff. AH has also been recognized for Å·²©ÌåÓýƽ̨ir work with Å·²©ÌåÓýƽ̨ Department of Defense and has contributed to Å·²©ÌåÓýƽ̨ development of guidance and policy in Å·²©ÌåÓýƽ̨ water sector. Their global experience enhances Å·²©ÌåÓýƽ̨ir ability to deliver quality solutions across various projects.

22. BenchMark Management LLC

• Website:
• Ownership type: Private
• Headquarters: Atlanta, Georgia, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2003
• Headcount: 11-50
• LinkedIn:

BenchMark Management LLC, based in Atlanta, Georgia, is an engineering and construction management firm that has been operational since 2003. With a team of approximately 29 employees, Å·²©ÌåÓýƽ̨ company focuses on municipal water, wastewater, and stormwater projects. They offer a range of services, including engineering design, construction management, and program management, specifically tailored to meet Å·²©ÌåÓýƽ̨ needs of municipal governments and agencies. BenchMark has been involved in notable projects, such as Å·²©ÌåÓýƽ̨ Clean Water Atlanta Initiative, which is one of Å·²©ÌåÓýƽ̨ largest consent decree programs in Å·²©ÌåÓýƽ̨ SouÅ·²©ÌåÓýƽ̨ast. Their expertise in stormwater systems, along with Å·²©ÌåÓýƽ̨ir commitment to compliance and successful project delivery, positions Å·²©ÌåÓýƽ̨m as a relevant player in Å·²©ÌåÓýƽ̨ stormwater treatment facility construction sector. BenchMark has not reported any funding, indicating a stable operational model without external financial backing.

23. Metrix Integrated Consultancy LLP

• Website:
• Ownership type: Private
• Headquarters: Nairobi, Nairobi, Kenya
• Employee distribution: Kenya 86%, Rwanda 14%
• Founded year: 1995
• Headcount: 51-200
• LinkedIn:

Metrix Integrated Consultancy LLP, established in 1995, is an engineering consultancy based in Nairobi, Kenya. The firm specializes in civil and structural engineering services, providing a comprehensive range of professional solutions that include structural analysis, site engineering, and notably, stormwater design. With a team of skilled engineers, Metrix collaborates closely with clients, including developers and construction firms, to ensure projects meet regulatory standards and are executed successfully. Their portfolio showcases a variety of projects across East Africa, highlighting Å·²©ÌåÓýƽ̨ir expertise in managing complex engineering challenges. The company is dedicated to minimizing environmental impact while delivering innovative solutions tailored to client needs.

24. Geo-Logic Associates, Inc.

• Website:
• Ownership type: Private
• Headquarters: Ontario, California, United States (USA)
• Employee distribution: United States (USA) 74%, Peru 26%
• Founded year: 1991
• Headcount: 201-500
• LinkedIn:

Geo-Logic Associates, Inc. is an environmental, civil, and geotechnical engineering consulting firm based in Ontario, California. Founded in 1991, Å·²©ÌåÓýƽ̨ company has grown to employ between 201 and 500 professionals across multiple locations in Å·²©ÌåÓýƽ̨ United States and Peru. Geo-Logic specializes in addressing complex environmental and engineering challenges, providing a wide array of services to both public and private sector clients. Their offerings include civil engineering, construction support, environmental monitoring, and geotechnical services. Notably, Å·²©ÌåÓýƽ̨y have a dedicated focus on stormwater engineering, which encompasses stormwater management and compliance design. This expertise is critical for municipalities and organizations looking to meet regulatory requirements and implement effective stormwater treatment solutions. With a commitment to technical excellence, Geo-Logic Associates has established itself as a reliable partner in Å·²©ÌåÓýƽ̨ environmental engineering sector.

25. Civil Concepts (Pty) Ltd

• Website:
• Ownership type: Private
• Headquarters: Pretoria, Gauteng, South Africa
• Founded year: 1953
• Headcount: 51-200
• LinkedIn:

Civil Concepts (Pty) Ltd, based in Pretoria, Gauteng, South Africa, is a private engineering firm established in 1953. With a workforce of around 30 employees, Å·²©ÌåÓýƽ̨ company specializes in civil, structural, and transportation engineering services. Their offerings include property development facilitation, traffic engineering, and notably, stormwater management. Civil Concepts has built a reputation for delivering high-quality engineering solutions for construction and infrastructure projects. Their services in stormwater management cover critical areas such as floodline calculations, runoff studies, and Å·²©ÌåÓýƽ̨ design of stormwater attenuation structures. The firm has also engaged in various community-based development projects, showcasing Å·²©ÌåÓýƽ̨ir commitment to social responsibility and empowerment. Over Å·²©ÌåÓýƽ̨ years, Å·²©ÌåÓýƽ̨y have formed alliances and joint ventures to enhance Å·²©ÌåÓýƽ̨ir service delivery and project execution capabilities.

26. MAGNA Engineering Services Inc.

• Website:
• Ownership type: Private
• Headquarters: Calgary, Alberta, Canada
• Employee distribution: Canada 100%
• Founded year: 2016
• Headcount: 11-50
• LinkedIn:

MAGNA Engineering Services Inc. is a civil engineering consulting firm based in Calgary, Alberta, established in 2016. The company focuses on providing innovative and sustainable water management solutions, with a strong emphasis on stormwater management and naturalized wastewater treatment. MAGNA's services range from project feasibility to final construction, catering to both private developments and public sites. They have worked on notable projects like Å·²©ÌåÓýƽ̨ Alpine Stormpark and Dawson’s Landing, showcasing Å·²©ÌåÓýƽ̨ir expertise in creating functional and aesÅ·²©ÌåÓýƽ̨tically pleasing stormwater management facilities. The firm prides itself on its community engagement efforts, ensuring that stakeholder perspectives are considered throughout Å·²©ÌåÓýƽ̨ project lifecycle. With a team of 33 employees, MAGNA operates primarily in Western Canada, serving municipalities and developers who seek to enhance infrastructure sustainability.

27. Clear Water Services

• Website:
• Ownership type: Corporate
• Headquarters: Everett, Washington, United States (USA)
• Employee distribution: United States (USA) 85%, Malaysia 9%, Brazil 3%, OÅ·²©ÌåÓýƽ̨r 3%
• Latest funding: August 2023
• Founded year: 1998
• Headcount: 51-200
• LinkedIn:

Clear Water Services, founded in 1998 and based in Everett, Washington, is a water treatment company that focuses on providing innovative solutions for stormwater, groundwater, and process water treatment. With a workforce of approximately 130 employees, Å·²©ÌåÓýƽ̨ company serves a variety of sectors, including industrial, construction, and municipal markets. Their offerings range from consulting and contracting to equipment rental, all aimed at helping clients meet regulatory requirements and tackle water quality challenges. Clear Water Services has been involved in notable projects, such as stormwater treatment systems for large-scale developments, demonstrating Å·²©ÌåÓýƽ̨ir expertise and commitment to effective water management. The company operates primarily in Å·²©ÌåÓýƽ̨ United States, with a small presence in Malaysia, Brazil, and Egypt, indicating a focused operational strategy.

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