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Top Environmental Consulting Companies

Environmental consulting firms assess and manage the environmental risk tied to land, buildings and operations. Their work includes Phase 1 and Phase 2 environmental site assessments for property deals, hazardous materials surveys before renovation or demolition, air, water and stormwater permits, compliance audits, wetland studies and remediation planning. Lenders, buyers, developers, manufacturers and municipalities hire them when a transaction needs due diligence, a project needs a permit, or a regulator issues a notice.

Listed consultants range from single-discipline specialists to engineering firms. Compare them on the assessment or permit you need, the credentials of the person signing the report, and laboratory accreditation.

How this list is built

We evaluate companies on verified profile data: services, pricing, locations, and portfolio. Client reviews are being collected. We may earn a fee for some placements. How we rank and verify

List of the Best Environmental Consulting Agencies

  1. Aster Environmental Services Ltd. logo
    Aster Environmental Services Ltd.
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    Aster Environmental Services (AES) focuses on delivering effective and affordable solutions for natural heritage assessments, environmental impact assessments, and environmental conservation and restoration.

    Highlights

    2-9

    Employees

    Waubaushene, Ontario, Ca

    Services Provided
    100% Environmental Consulting
    AI Summary

    “Aster Environmental Services Ltd. specializes in natural heritage assessments, environmental impact evaluations, and conservation to provide effective, affordable, and sustainable environmental solutions.”

  2. Amiante​ Environmental Consulting Inc. logo
    Amiante​ Environmental Consulting Inc.
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    We are committed to safeguarding your health and safety by offering expert guidance and professional services for the management of hazardous materials. If you intend to renovate your home or take down a building, rely on a certified and licensed hazardous materials consultant to assist you througho

    Highlights

    $1,000+

    Min Project Size

    $25-49/hr

    Avg Hourly Rate

    2-9

    Employees

    Services Provided
    100% Environmental Consulting
    AI Summary

    “Amiante Environmental Consulting Inc. provides certified, professional hazardous materials management and consulting services, ensuring regulatory compliance and safety during renovations and demolitions.”

  3. E
    EPAC Environmental Services, Inc.
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    EPAC Environmental Services, Inc. was founded in 1987 as a partnership among friends in the lively South Florida region. We started by concentrating on Phase I and II Environmental Site Assessments and soon gained acclaim for our commitment to environmental care and adherence to regulations. By 1989

    Highlights

    10-49

    Employees

    Services Provided
    100% Environmental Consulting
    AI Summary

    “Founded in 1987, EPAC Environmental Services, Inc. offers comprehensive environmental consulting, including site assessments and regulatory compliance, primarily along the U.S. East Coast.”

  4. H3M Environmental logo
    H3M Environmental
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    Flexible, comprehensive environmental and regulatory assistance for clients in the upstream and midstream oil and gas sectors, as well as municipalities, Indigenous communities, mining, industrial, commercial real estate, forestry, and utilities. Services are offered throughout the various phases of

    Highlights

    $1,000+

    Min Project Size

    $50-99/hr

    Avg Hourly Rate

    50-249

    Employees

    Calgary, Alberta, Ca

    Services Provided
    89% Environmental Consulting
    11% Compliance Consulting Services
    AI Summary

    “H3M Environmental specializes in environmental consulting and compliance services, providing solutions to manage environmental risks and ensure regulatory adherence across diverse industries.”

  5. MSE Environmental logo
    MSE Environmental
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    At MSE Environmental, we strive to ensure the health, safety, and regulatory compliance of all our residential and commercial clients.

    Highlights

    $5,000+

    Min Project Size

    $25-49/hr

    Avg Hourly Rate

    10-49

    Employees

    Services Provided
    89% Environmental Consulting
    11% Safety Consulting Services
    AI Summary

    “MSE Environmental delivers health and safety solutions ensuring regulatory compliance for residential and commercial clients, focusing on environmental services and client well-being.”

  6. Path Forward Partners, Inc. logo
    Path Forward Partners, Inc.
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    Path Forward Partners, Inc. was established by David Grunat, Greg Noblet, and Craig Pelletier to deliver effective, practical, and health-oriented solutions for our clients' environmental challenges. We approach each project with a combination of technical expertise, creativity, quick responsiveness

    Highlights

    $1,000+

    Min Project Size

    $50-99/hr

    Avg Hourly Rate

    2-9

    Employees

    Oakland, California, Us

    Services Provided
    78% Environmental Consulting
    11% Cleaning Services
    11% Healthcare Services
    AI Summary

    “Path Forward Partners, Inc. offers comprehensive environmental consulting and engineering services, including risk assessments, remediation, air quality monitoring, and site investigations with scientific rigor.”

  7. Spectrum Water Technology logo
    Spectrum Water Technology
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    Spectrum Water Technology collaborates with clients throughout North America to create and apply tailored solutions for various wastewater issues. With our in-house laboratory for wastewater analysis, we can examine your waste stream and pinpoint any inefficiencies in your treatment process. Our tea

    Highlights

    $10,000+

    Min Project Size

    10-49

    Employees

    Geismar, Louisiana, Us

    Services Provided
    70% Environmental Consulting
    30% Analytics Services
    AI Summary

    “Spectrum Water Technology offers expert wastewater treatment solutions across North America, utilizing in-house laboratory analysis and decades of experience to optimize waste management processes.”

  8. ASTI Environmental logo
    ASTI Environmental
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    ASTI Environmental, part of PEA Group, has been offering environmental and engineering services to both industry and government since 1985. To effectively support our clients across the Great Lakes region, ASTI operates three offices. Our main headquarters is situated in Brighton, Michigan, with add

    Highlights

    Brighton, Michigan, Us

    Services Provided
    70% Environmental Consulting
    30% Engineering Services
    AI Summary

    “ASTI Environmental, part of PEA Group since 1985, delivers comprehensive environmental and engineering services across Michigan's Great Lakes region from its three offices.”

  9. Hanis Consulting, Inc. logo
    Hanis Consulting, Inc.
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    Managing environmental risks and liabilities is not merely a checkbox task, as improper handling can lead to serious consequences. Environmental consultants often exhibit two predominant mindsets, prioritizing their own interests over those of their clients. Some firms lure clients with low bids, th

    Highlights

    $1,000+

    Min Project Size

    $50-99/hr

    Avg Hourly Rate

    2-9

    Employees

    Palatine, Illinois, Us

    Services Provided
    70% Environmental Consulting
    30% Business Consulting Services
    AI Summary

    “Hanis Consulting delivers client-focused environmental risk management and advisory services using value-based pricing, emphasizing transparent communication and informed decision-making without billable-hour incentives.”

  10. Leaf Global logo
    Leaf Global
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    Leaf Global is an international sustainability consultancy that assists real estate developers, owners, and investors in achieving prestigious global certifications while maintaining schedules and enhancing financial outcomes. With over 400 certified projects in various markets, we employ proven met

    Highlights

    $5,000+

    Min Project Size

    $25-49/hr

    Avg Hourly Rate

    50-249

    Employees

    Ciudad de Mexico, Mx

    Services Provided
    70% Environmental Consulting
    30% Project Management
    AI Summary

    “Leaf Global is a sustainability consultancy guiding real estate projects to achieve global certifications efficiently, enhancing financial outcomes through strategic planning and proven execution methodologies.”

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Buyer's guide

Hiring Environmental Consulting companies

What the work covers, how to judge a partner and what drives the price.

What environmental consultants deliver

Transaction work centers on the Phase 1 environmental site assessment, which reviews historical records, regulatory databases and a site walk to flag recognized environmental conditions under the ASTM E1527 standard. When it finds one, a Phase 2 follows with soil, groundwater or vapor sampling, and possibly a remediation plan and cost estimate.

Building work covers asbestos, lead paint, mold and PCB surveys before renovation or demolition, abatement specifications and air clearance testing. Operating work covers air emissions permits, stormwater pollution prevention plans, spill prevention plans, waste characterization, environmental management systems aligned with ISO 14001, and greenhouse gas inventories.

Land and development projects add environmental impact assessments, natural heritage and species surveys, wetland delineation and agency consultation. Engagements are usually a fixed-scope report, a multi-phase project, or a compliance retainer with scheduled inspections and reporting.

Chapter 1 of 3
FAQ

Environmental Consulting FAQs

Short answers to what buyers ask before hiring a Environmental Consulting company.

Question not covered? Ask our team

An environmental consulting firm identifies and manages environmental risk for property owners and operators. It performs Phase 1 and II site assessments, hazardous materials surveys, permitting, compliance audits, ecological studies and remediation planning, and it prepares the reports that lenders, buyers and regulators rely on.

Standard reports are fixed-fee, while sampling and remediation are billed on time and materials plus laboratory costs. Site size, history, sample count, turnaround and regulatory reporting set the price. Most firms in this listing set no minimum or a minimum project of $1,000 to $5,000, with some starting at $100,000 or $250,000 for remediation programs.

A Phase 1 is typically ordered before buying, refinancing or developing commercial property, because lenders require it and it supports the innocent landowner defense under federal law. It is also used before leasing industrial space. If the report flags a recognized environmental condition, a Phase 2 with sampling usually follows.

Environmental consulting deals with what a property or operation releases into land, air and water and how it is permitted. Health and safety consulting protects workers, covering hazard assessments, OSHA compliance, training and exposure monitoring. Hazmat surveys and industrial hygiene sit between the two, and many firms offer both.

Listed firms most often serve manufacturing, energy and natural resources, government, financial services, real estate and business services clients. Lenders and real estate buyers order transaction assessments, manufacturers and energy companies need permits and audits, and public agencies commission impact studies.

Listed environmental consulting firms are spread across Atlanta, Calgary, Chicago, Clearwater and Los Angeles. Site work requires field staff to visit the property, and consultants need to know the reviewing agency, so confirm a firm has worked in the state or province where your site sits.

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