Environmental engineering companies in Minnesota focus on safeguarding natural resources and enhancing ecological sustainability. These firms engage in a variety of projects, including environmental assessments, remediation of polluted sites, and resource management. Operating in sectors such as construction, energy, and manufacturing, the industry prioritizes compliance with environmental regulations while addressing contemporary challenges like climate change and urbanization. Notably, Minnesota's firms are increasingly adopting innovative technologies, paving the way for greener practices. The collective goal of these companies is to create resilient environments, which reflects a growing awareness of environmental issues at both local and global levels.

This list features 19 prominent environmental engineering companies headquartered in Minnesota. Ranging from small firms with fewer than 50 employees to larger companies employing thousands, these organizations were founded between 1949 and 2018. They specialize in various services, including environmental consulting, water management, and ecological restoration. Headquartered in cities like Minneapolis, Saint Paul, Mankato, and Duluth, these companies contribute significantly to the state's environmentally focused economy, showcasing a commitment to sustainable practices across their diverse portfolios.

Continue reading to learn about the top environmental engineering companies in Minnesota.

Top 19 Environmental Engineering Companies in Minnesota

1. Barr Engineering Co.

• Website: barr.com
• Ownership type: Private
• Headquarters: Minneapolis, Minnesota, United States (USA)
• Employee distribution: United States (USA) 94%, Canada 6%
• Founded year: 1966
• Headcount: 1001-5000
• LinkedIn: barr-engineering-co

Barr Engineering Co., based in Minneapolis, Minnesota, is a consulting firm that specializes in engineering and environmental services. Established in 1966, the company has grown to employ over 1,000 professionals who work collaboratively to provide tailored solutions for clients across various sectors, including fuels, manufacturing, mining, and public agencies. Barr is dedicated to helping clients navigate complex challenges while achieving sustainable outcomes. Their services include environmental investigation and remediation, permitting and compliance, and water management, among others. The firm has a strong commitment to community and environmental stewardship, which is reflected in their project portfolio that includes initiatives for water quality improvement and habitat restoration. Barr's employee ownership structure promotes a culture of engagement and accountability, ensuring that their team is invested in the success of their clients and the environment.

2. Seh

• Website: sehinc.com
• Ownership type: Private
• Headquarters: Saint Paul, Minnesota, United States (USA)
• Employee distribution: United States (USA) 99%
• Founded year: 1927
• Headcount: 501-1000
• LinkedIn: seh

Short Elliott Hendrickson Inc. (Seh) is an engineering and architectural firm based in Saint Paul, Minnesota. Founded in 1927, the company has grown to employ over 1,000 professionals. Seh offers a wide range of services, including civil engineering, construction management, and environmental consulting. They serve both government entities and private sector clients, helping to tackle complex infrastructure challenges while promoting sustainable development. Their environmental services focus on restoring ecological balance and include wastewater engineering, water resources management, and natural resources services. The firm is dedicated to fostering positive change in the environment and has a strong commitment to community engagement and sustainability. Their extensive experience and employee ownership model contribute to their innovative approach to engineering solutions.

3. Antea Group USA

• Website: us.anteagroup.com
• Ownership type: Private
• Headquarters: Saint Paul, Minnesota, United States (USA)
• Employee distribution: United States (USA) 76%, Netherlands 8%, Belgium 6%, Other 10%
• Founded year: 2001
• Headcount: 1001-5000
• LinkedIn: anteagroup

Antea Group USA is an engineering and consulting firm based in Saint Paul, Minnesota, founded in 2001. The company employs approximately 659 professionals and operates primarily in the United States, with additional offices in Europe and Latin America. Antea Group specializes in a range of services including transportation infrastructure, water management, environmental management, urban development, and energy solutions. They work with both public entities and private organizations, providing expertise to tackle intricate challenges related to sustainability and resource optimization. Their commitment to quality and environmental stewardship is reflected in their project management practices and their focus on innovative solutions. Antea Group has been involved in numerous significant projects that contribute to economic growth and social development while respecting environmental standards.

4. Isg

• Website: isginc.com
• Ownership type: Corporate
• Headquarters: Mankato, Minnesota, United States (USA)
• Employee distribution: United States (USA) 95%, Other 5%
• Latest funding: January 2006
• Founded year: 1973
• Headcount: 501-1000
• LinkedIn: i%26s-group

ISG Inc., based in Mankato, Minnesota, is a corporate entity founded in 1973. The firm operates as a 100% employee-owned company and employs over 1,000 professionals. ISG provides a wide array of services, including architecture, engineering, environmental, and planning. They cater to various clients, such as government agencies, educational institutions, and private businesses. Their portfolio showcases a commitment to sustainable solutions, particularly in environmental engineering, with projects like the Kingsley Wastewater Treatment Plant, which addressed critical water quality issues. ISG's approach combines technical expertise with a focus on community needs, making them a notable player in the environmental engineering sector.

5. Bolton & Menk, Inc.

• Website: bolton-menk.com
• Ownership type: Private
• Headquarters: Mankato, Minnesota, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1949
• Headcount: 1001-5000
• LinkedIn: bolton-%26-menk

Bolton & Menk, Inc. is an engineering firm based in Mankato, Minnesota, founded in 1949. With a workforce of approximately 921 employees, the company provides a range of planning and engineering services aimed at improving community infrastructure. Their expertise spans several sectors, including municipal, transportation, parks and recreation, education, healthcare, commercial, residential, industrial, and energy. Notably, Bolton & Menk offers specialized services in water and wastewater engineering, environmental planning and permitting, and water resources engineering. The firm is dedicated to sustainable development, ensuring that the projects they undertake not only meet current needs but also consider future environmental impacts. Their commitment to community engagement and technical solutions has made them a trusted partner for municipalities and other entities seeking to enhance their infrastructure.

6. Emmons & Olivier Resources, Inc. (EOR)

• Website: eorinc.com
• Ownership type: Private
• Headquarters: Saint Paul, Minnesota, United States (USA)
• Employee distribution: United States (USA) 96%, Canada 4%
• Founded year: 1997
• Headcount: 51-200
• LinkedIn: emmons-and-olivier-resources

Emmons & Olivier Resources, Inc. (EOR) is an engineering and environmental consulting firm based in Saint Paul, Minnesota. Established in 1997, EOR has built a reputation for its expertise in water resources, ecological restoration, and landscape architecture. The firm provides a range of services that include civil engineering, environmental reviews, and planning guidance, catering to both government and private sector clients. EOR is particularly known for its work in environmental compliance, where it conducts thorough assessments and permits for various projects, ensuring adherence to regulatory standards. Their projects often focus on enhancing community resilience and managing natural resources effectively. EOR's commitment to social equity is evident in their JEDI (Justice, Equity, Diversity, and Inclusion) framework, which aims to represent the interests of historically excluded communities in their work. With a team of skilled professionals, EOR employs innovative technologies to deliver high-quality solutions that address complex environmental challenges.

7. Landmark Environmental, LLC

• Website: landmarkenv.com
• Ownership type: Private
• Headquarters: Bloomington, Minnesota, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2000
• Headcount: 11-50
• LinkedIn: landmark-environmental-llc

Landmark Environmental, LLC, based in Bloomington, Minnesota, is an environmental consulting firm founded in 2000. The company specializes in brownfield redevelopment and compliance services, providing a comprehensive suite of offerings that include environmental assessments, remediation planning, and regulatory compliance support. Landmark serves a wide range of clients, including government entities, developers, and industries, helping them navigate complex environmental issues. Their team consists of experienced professionals, including civil, environmental, and geological engineers, hydrogeologists, and environmental scientists. Landmark is recognized as a women-owned small business and holds various certifications that enhance its credibility in the market. The firm has been involved in numerous projects, addressing contaminated sites and ensuring compliance with environmental regulations, which highlights its commitment to facilitating sustainable development and environmental stewardship.

8. LHB, Inc.

• Website: lhbcorp.com
• Ownership type: Venture Capital
• Headquarters: Duluth, Minnesota, United States (USA)
• Employee distribution: United States (USA) 99%, Other 1%
• Latest funding: $550,000, December 2024
• Founded year: 1966
• Headcount: 201-500
• LinkedIn: lhbaefirm

LHB, Inc. is an architecture and engineering firm based in Duluth, Minnesota, founded in 1966. With a workforce of approximately 276 employees, the company provides a wide array of professional services, including design, planning, and engineering across multiple sectors. LHB serves clients ranging from government agencies to educational institutions and commercial developers, focusing on innovative solutions to complex project challenges. Notably, LHB has a dedicated environmental engineering division that tackles various environmental issues, emphasizing sustainability and climate action. Their recent funding of $549,671 in December 2024 reflects ongoing investment in their capabilities and services, particularly in areas related to climate solutions and renewable energy.

9. Merjent

• Website: merjent.com
• Ownership type: Private
• Headquarters: Minneapolis, Minnesota, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2004
• Headcount: 51-200
• LinkedIn: merjent-inc.

Merjent, Inc. is an environmental consulting and engineering services firm based in Minneapolis, Minnesota, founded in 2004. The company employs between 51 and 200 professionals, all based in the United States. Merjent focuses on providing comprehensive solutions for energy projects and environmental management, serving both businesses and government entities. Their services include consulting on air quality, environmental permitting, and low carbon energy transition, as well as engineering services related to civil design, hydropower, and water resources. They have a notable track record, having permitted over 100,000 miles of pipeline and restored more than 25,000 acres of land. Merjent's team is equipped with experts in various fields, including wetland ecology, air quality, and cultural resources, which enhances their ability to manage complex projects across multiple states. Their commitment to environmental compliance and restoration positions them as a significant player in the environmental engineering industry.

10. Braun Intertec Corporation

• Website: braunintertec.com
• Ownership type: Private
• Headquarters: Minneapolis, Minnesota, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1957
• Headcount: 501-1000
• LinkedIn: braun-intertec-corporation

Braun Intertec Corporation, founded in 1957 and based in Minneapolis, Minnesota, is a consulting firm that specializes in engineering and environmental services. With a workforce of approximately 953 employees, the company offers a wide array of services, including geotechnical engineering, environmental consulting, and construction materials testing. They cater to various sectors such as healthcare, mining, and transportation, ensuring project success and regulatory compliance. Their environmental consulting division focuses on critical areas like environmental site investigations, soil and groundwater assessments, and contaminated site remediation. This involvement underscores their commitment to addressing environmental issues and supporting sustainable practices across industries. Braun Intertec's expertise in environmental health and safety consulting further enhances their role in the environmental engineering sector, making them a significant player in the field.

11. Northeast Technical Services, Inc.

• Website: netechnical.com
• Ownership type: Private
• Headquarters: Virginia, Minnesota, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1985
• Headcount: 11-50
• LinkedIn: northeast-technical-services-inc.

Northeast Technical Services, Inc. (NTS) is an environmental consulting firm based in Virginia, Minnesota, founded in 1985. Initially focused on managing water and wastewater treatment plants, NTS has evolved into a full-service environmental services provider. The company employs approximately 50 professionals, including engineers, field scientists, and geologists, who work collaboratively to deliver quality services. NTS specializes in a range of areas, including aquatic ecology, site assessment, water science, and environmental compliance. Their expertise extends to managing complex projects for both industrial and governmental clients, ensuring adherence to environmental regulations and standards. NTS is recognized for its commitment to integrity, teamwork, and client-focused solutions, making it a reliable partner in addressing environmental challenges.

12. Wenck

• Website: wenck.com
• Ownership type: Corporate
• Headquarters: Maple Plain, Minnesota, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: December 2020
• Founded year: 1985
• Headcount: 201-500
• LinkedIn: wenck-associates-inc-

Wenck, a part of Stantec, is an engineering and environmental consulting firm based in Maple Plain, Minnesota. Founded in 1985, the company has built a reputation for addressing intricate challenges in various sectors, including community development, energy, and water management. Wenck serves both businesses and government entities, providing expert guidance and innovative solutions to enhance infrastructure and promote sustainability. Their projects often focus on critical areas such as ecosystem restoration, climate solutions, and water resource management, showcasing their commitment to environmental stewardship. With a workforce of around 90 employees, Wenck continues to play a significant role in the environmental engineering industry, contributing to projects that aim to improve community resilience and environmental health.

13. Pinnacle Engineering, Inc.

• Website: pineng.com
• Ownership type: Private
• Headquarters: Minneapolis, Minnesota, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1991
• Headcount: 51-200
• LinkedIn: pinnacle-engineering-inc---mn

Pinnacle Engineering, Inc., based in Minneapolis, Minnesota, is an environmental consulting firm that has been active since 1991. With a workforce of 51-200 employees, the company specializes in providing engineering and environmental services tailored to the needs of various sectors, including industrial, railroad, and energy. Pinnacle assists clients in navigating the complexities of environmental regulations, ensuring compliance, and offering remediation solutions. Their service offerings include environmental assessments, air permitting, water services, and emergency response, among others. The firm operates across the Midwest, with multiple office locations, and prides itself on its collaborative approach, working closely with clients to develop effective and sustainable solutions to environmental challenges. Pinnacle Engineering has built a reputation for responsiveness and reliability, making it a trusted partner for businesses facing environmental issues.

14. Nova Group, GBC

• Website: novagroupgbc.com
• Ownership type: Private
• Headquarters: St. Louis Park, Minnesota, United States (USA)
• Employee distribution: United States (USA) 99%, Other 1%
• Founded year: 1987
• Headcount: 201-500
• LinkedIn: novagroupgbc

Founded in 1987 and based in St. Louis Park, Minnesota, Nova Group, GBC is a consulting firm that provides a wide range of environmental and engineering services. The company has built a reputation for delivering innovative solutions tailored to the needs of businesses and organizations, particularly in the areas of real estate due diligence, environmental compliance, and energy efficiency. With a workforce of approximately 265 employees, Nova operates through local offices and a network of professionals across North America, Europe, and Asia. Their services include environmental investigation and remediation, health and safety assessments, solid waste management, and energy audits, among others. Nova Group is also recognized as a Certified B Corporation, reflecting their commitment to using business as a force for good. This certification underscores their dedication to social responsibility and environmental stewardship, which are critical components of their operational ethos.

15. Carlson McCain, Inc.

• Website: carlsonmccain.com
• Ownership type: Private
• Headquarters: Blaine, Minnesota, United States (USA)
• Founded year: 1997
• Headcount: 51-200
• LinkedIn: carlson-mccain-inc-

Carlson McCain, Inc., founded in 1997 and based in Blaine, Minnesota, is a consulting firm that specializes in environmental, engineering, and surveying services. With a team of experts, the company provides comprehensive solutions tailored to the needs of businesses and organizations involved in construction and land development. Their services include environmental site assessments, brownfield redevelopment, and remediation, which are essential for managing environmental risks and ensuring compliance with regulations. Additionally, they offer civil engineering, land surveying, and solid waste management services, showcasing their multifaceted approach to project management. Carlson McCain is recognized for its ability to help clients navigate complex environmental challenges effectively, making it a significant player in the environmental engineering sector.

16. Windsor Engineers

• Website: windsorengineers.com
• Ownership type: Private
• Headquarters: Duluth, Minnesota, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2018
• Headcount: 11-50
• LinkedIn: windsor-engineers

Windsor Engineers is a private engineering firm based in Duluth, Minnesota, founded in 2018. The company specializes in mechanical, electrical, and plumbing (MEP) engineering, as well as civil infrastructure services. With a team of 11 to 50 employees, Windsor Engineers focuses on providing planning, design, and construction management solutions for both municipalities and private developers. Their projects often emphasize sustainability and high performance, reflecting a commitment to environmentally responsible engineering practices. Windsor Engineers has engaged in various projects that include stormwater management, wastewater services, and energy modeling, showcasing their expertise in addressing environmental challenges. They aim to deliver innovative solutions that not only meet client expectations but also contribute positively to the environment.

17. Karvakko Engineering, Inc.

• Website: karvakko.com
• Ownership type: Private
• Headquarters: Bemidji, Minnesota, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2006
• Headcount: 11-50
• LinkedIn: karvakko-engineering

Karvakko Engineering, Inc., founded in 2006 and based in Bemidji, Minnesota, is a private engineering firm with a workforce of 11 to 50 employees. The company offers a range of services, including engineering, surveying, landscape architecture, and environmental consulting. Karvakko is dedicated to serving municipalities, airports, and government entities, helping them navigate complex projects with precision and compliance. Their environmental services are particularly noteworthy, as they specialize in environmental permitting, wetland delineation, and site assessments, which are essential for ensuring projects meet regulatory standards. The firm prides itself on a collaborative approach, working closely with clients to tailor solutions that address their unique needs. Karvakko's commitment to community improvement and environmental preservation is evident in their mission to enhance the quality of life in the Upper Midwest. They actively participate in local initiatives and charitable efforts, further solidifying their role as a responsible corporate citizen in the environmental engineering sector.

18. Adams Engineering Inc

• Website: adams-engineering.com
• Ownership type: Private
• Headquarters: Stillwater, Minnesota, United States (USA)
• Founded year: 1970
• Headcount: 51-200
• LinkedIn: adams-engineering-inc

Adams Engineering Inc, based in Stillwater, Minnesota, has been a player in the engineering and environmental consulting field since its establishment in 1970. The firm offers a range of services that include site assessment, environmental remediation, and landscape architecture. They cater to a variety of clients, from government entities to private developers, assisting them in navigating the intricate regulatory landscape associated with environmental projects. Their expertise in environmental compliance and remediation showcases their commitment to addressing environmental challenges effectively. While the company has maintained a steady presence in the industry, specific details about their recent projects or innovations are not readily available, which may affect their recognition in the broader market.

19. Wsb

• Website: wsbeng.com
• Ownership type: Private Equity
• Headquarters: Minneapolis, Minnesota, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: September 2023
• Founded year: 1995
• Headcount: 1001-5000
• LinkedIn: wsb-%26-associates-inc-

WSB is a consulting and engineering firm based in Minneapolis, Minnesota, founded in 1995. With a workforce of over 1,100 employees, the company specializes in infrastructure development, community planning, and environmental services. They cater to both municipalities and private sector clients, offering innovative solutions aimed at enhancing community infrastructure and promoting sustainability. WSB's expertise spans several sectors, including transportation, construction, energy, and technology. Their environmental services include compliance, investigation, and remediation, as well as sustainability initiatives that protect natural resources and support local ecosystems. WSB's commitment to sustainability is evident in their projects, such as the Burnsville Solar Panel Project, which advises clients on renewable energy investments. They have not reported any recent funding, indicating a stable operational model without external financial dependencies.

Environmental Engineering Insights: Key Companies in Minnesota

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