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NAICS Code· 541620

Environmental Consulting Services

This industry comprises establishments primarily engaged in providing advice and assistance to businesses and other organizations on environmental issues, such as the control of environmental contamination from pollutants, toxic substances, and hazardous materials. These establishments identify problems (e.g., inspect buildings for hazardous materials), measure and evaluate risks, and recommend solutions. They employ a multidisciplined staff of scientists, engineers, and other technicians with expertise in areas, such as air and water quality, asbestos contamination, remediation, ecological restoration, and environmental law. Establishments providing sanitation or site remediation consulting services are included in this industry. Cross-References.Show more

NAICS 541620 – Environmental Consulting Services encompasses a broad spectrum of professional services focused on environmental assessment, remediation planning, regulatory compliance, and sustainability advisory. Contractors in this sector deliver technical expertise in environmental site investigations, hazardous material management, ecological impact assessments, water quality modeling, air emissions analysis, and brownfield redevelopment.

2.0K
Active Contracts
$6.1B
Total Obligations (12mo)
1.9K
Awarded Contracts (12mo)
706
Contractors Awarded (12mo)
+286.9%
YoY Growth

Contract Opportunities

Active solicitations and awarded contracts classified under NAICS 541620 — Environmental Consulting Services.

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NAICS 541620 FAQ

Frequently Asked Questions

NAICS code 541620 covers Environmental Consulting Services. This industry comprises establishments primarily engaged in providing advice and assistance to businesses and other organizations on environmental issues, such as the control of environmental contamination from pollutants, toxic substances, and hazardous materials. These establishments identify problems (e.g., inspect buildings for hazardous materials), measure and evaluate risks, and recommend solutions. They employ a multidisciplined staff of scientists, engineers, and other technicians with expertise in areas, such as air and water quality, asbestos contamination, remediation, ecological restoration, and environmental law. Establishments providing sanitation or site remediation consulting services are included in this industry. Cross-References.

Recently Posted in Environmental Consulting Services

NAICS: 541620
New
Federal
NASA Environmental Restoration and Compliance Contract (NERCCF) follow-onNASA is preparing to issue a follow-on agency-wide contract for Architect-Engineer professional services focused on environmental restoration and compliance across all NASA centers, facilities, and assets. This indefinite delivery, indefinite quantity (IDIQ) multiple award contract will support a broad range of environmental remediation, regulatory compliance, and sustainability initiatives necessary to maintain NASA’s operational and environmental stewardship responsibilities. The work will be performed at locations yet to be determined, with services spanning contamination assessment, hazardous waste management, ecological restoration, and adherence to federal environmental laws and regulations. The North American Industry Classification System code for this effort is 541620, and the solicitation is being managed by the Kennedy Space Center under the National Aeronautics and Space Administration. Point of contact for technical inquiries is Anne M. Chrest, with Natalie B. Colvin serving as the Small Business Specialist to support contractor engagement and participation. This forecast anticipates a competitive acquisition process expected to launch in October 2026.
Kennedy Space Center

POSTED

in 3 months

DEADLINE

N/A
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NAICS: 541620
New
Federal
Preservation and Conservation of Archival MediaThe contract entails the application of preservation-level handling and conservation techniques to sensitive archival media such as magnetic tapes, floppy discs, and photographs, ensuring their long-term integrity and accessibility. This work focuses on specialized methods designed to stabilize, repair, and protect deteriorating materials without altering their original content, requiring expert knowledge in historical media formats and conservation science. The services are to be performed at the Washington Navy Yard under the oversight of the Naval History and Heritage Command, leveraging industry-standard practices to safeguard culturally significant records. This subcontract falls under the NAICS code 541620, indicating it is classified as other scientific and technical consulting services, and is intended to support the agency’s mission of preserving naval historical assets. No set-aside provisions are specified, and the contract does not designate a point of contact or solicitation number, suggesting it may be issued under a broader master agreement or existing framework. The work is critical to maintaining the authenticity and usability of historical records, and all activities must align with professional conservation standards to prevent further degradation of fragile materials.
Naval History and Heritage Command (NHHC)

POSTED

in 2 months

DEADLINE

N/A
View Details
NAICS: 541620
New
SLED
Asbestos Inspection and TestingThis subcontract involves inspecting and testing materials for asbestos during demolition activities to ensure compliance with relevant regulations and to protect worker safety. The work will take place in District 2 under the oversight of the Massachusetts Department of Transportation (MASSDOT). The contract falls under the NAICS code 541620, which relates to environmental consulting services. The solicitation does not specify a set-aside category or provide detailed office location data, and the posted date and response deadline are both August 28, 2026. The primary objective is to identify any asbestos-containing materials before demolition begins, thereby mitigating health risks and ensuring the project adheres to environmental and safety standards.
MASSDOT

POSTED

in 2 months

DEADLINE

in 2 months
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NAICS: 541620
New
SLED
Environmental & Safety Compliance SupportThe contract titled Environmental & Safety Compliance Support is a subcontract issued by the City of Greeley in Colorado, focusing on the development and ongoing monitoring of safety and environmental compliance programs. Key responsibilities include the preparation and submission of stormwater management plans and quality assurance and quality control reporting to ensure adherence to regulatory standards. The solicitation was posted on June 26, 2026, with a response deadline of July 31, 2026, at 5:00 PM. It is classified under NAICS code 541620, which corresponds to environmental consulting services, indicating that the work requires specialized technical expertise in environmental regulation and compliance. The place of performance and point of contact details are not specified, and no set-aside type is indicated, meaning the subcontract is open to all eligible entities without restriction based on business size or ownership characteristics.
City of Greeley

POSTED

2 days ago

DEADLINE

in about 1 month
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NAICS: 541620
New
SLED
Lead Risk Assessment Field ServicesThe contract requires the performance of on-site lead risk assessments at residential properties within Texas, focusing on identifying potential lead hazards through visual inspections and dust wipe sampling to ensure compliance with both HUD guidelines and Texas TELRR regulations. The work involves systematic evaluation of residential structures to detect lead-based paint hazards and other related risks, with results used to inform mitigation strategies and regulatory adherence. All activities must be conducted in accordance with established federal and state protocols to protect public health and property integrity. This is a subcontract under solicitation numbered RFP2026-020 issued by the City of Waco, Texas, with a response deadline of July 23, 2026, and a posted date of June 26, 2026. The North American Industry Classification System code is 541620, indicating it relates to environmental consulting services. The place of performance is not specified beyond the state level, and while no set-aside type is designated, the opportunity is open to qualified subcontractors aiming to support public health initiatives in Waco-area residential communities. Access to details and submissions must be made through the Texas SmartBuy portal.
CITY OF WACO

POSTED

2 days ago

DEADLINE

in 25 days
View Details
NAICS: 541620
New
SLED
Lead Clearance Examination ServicesThe contract seeks qualified service providers to perform post-remediation lead clearance examinations in compliance with established safety standards, ensuring that lead hazards have been effectively mitigated in affected environments. This includes conducting thorough re-sampling of surfaces and air quality, analyzing results, and submitting detailed clearance reports that document the success of remediation efforts and confirm the area is safe for re-occupancy. The work is critical to protecting public health, particularly in residential or child-inhabited spaces where lead exposure poses significant risks. The contract is a subcontract opportunity under NAICS code 541620, issued by the CITY OF WACO through the Texas SmartBuy procurement system, with a response deadline of July 23, 2026. While specific performance locations and point of contact details are not provided, the work is anticipated to occur within the jurisdiction of the City of Waco, Texas. Interested parties must submit proposals by the deadline to be considered for award, and all services must adhere to regulatory guidelines for lead abatement verification and documentation.
CITY OF WACO

POSTED

2 days ago

DEADLINE

in 25 days
View Details
NAICS: 541620
New
SLED
RFQ No. 26-001-300, CEQA ComplianceThe California State Water Resources Control Board is soliciting Statement of Qualifications from firms to provide technical and administrative services in support of compliance with the California Environmental Quality Act (CEQA), under solicitation number 26-001-300. The contract will award a single vendor based on a weighted evaluation of written submissions and an oral interview, with selection determined by a panel of State Water Board staff. Submission of a complete SOQ package including attachments such as the written statement of qualifications, resumes, licenses for engineers and geologists, federal form 330, certification documents, business licenses, and references is mandatory. Respondents must meet minimum qualification requirements to proceed to scoring, which evaluates experience in similar services (60 points), qualifications of assigned personnel (40 points), quality of recent work (60 points), knowledge of applicable regulations (80 points), reliability and availability (20 points), and references (126 points), totaling a maximum of 386 points. The evaluation uses a 0 to 10 scoring scale, with a requirement for clear, well-documented responses that meet or exceed professional standards. At least three top-ranked respondents will be invited for interviews scheduled for the week of August 10, 2026, followed by fee negotiations in the week of August 17, 2026, with an anticipated start date upon approval. The resulting agreement will have an anticipated term of sixty months, with performance primarily based in Alameda, California, though flexibility exists for amendments to extend time, scope, or budget. Contractors must deliver environmental documentation including project descriptions, aquatic and biological resources assessments, cultural resources evaluations, initial studies, negative declarations, and full Environmental Impact Reports, as well as tribal consultation materials and litigation support. All deliverables must be submitted electronically, follow a structured draft-revision process, and comply with California Government Code section 11546.7 and WCAG 2.2 Level AA accessibility standards. Contracting firms must certify compliance with California’s non-discrimination laws, maintain current business standing, adhere to the Contractor Certification Clauses (CCC 04/2017), and ensure DVBE participation of at least 3%. Additional requirements include compliance with health and safety regulations, procurement of necessary permits, maintenance of $1 million motor vehicle liability insurance, adherence to Russian sanctions and the Darfur Contracting Act, and adherence to prompt payment rules under Government Code Chapter 4.5. Invoices must be
State Water Resources Control

POSTED

2 days ago

DEADLINE

in 30 days
View Details
NAICS: 541620
New
SLED
Environmental Impact Report (EIR) PreparationThe contract requires the preparation of Draft and Final Environmental Impact Reports under the California Environmental Quality Act, encompassing comprehensive technical analysis, coordination of public review processes, and drafting of responses to comments received during public consultation. Work under this subcontract will be performed primarily in Alameda, with responsibilities extending to all phases of EIR development including data collection, environmental assessment, and regulatory compliance documentation to ensure adherence to CEQA standards. The solicitation is open for responses until July 29, 2026, and is classified under NAICS code 541620, indicating it pertains to environmental consulting services. The procuring entity is the State Water Resources Control Board under the California government, and while no specific set-aside or organizational restrictions are noted, the contract is structured as a subcontract within the state's environmental infrastructure framework.
State Water Resources Control

POSTED

2 days ago

DEADLINE

in 30 days
View Details
NAICS: 541620
New
SLED
Aquatic and Biological Resources AssessmentThe contract titled Aquatic and Biological Resources Assessment focuses on conducting field studies and assessments of aquatic and biological resources, with specific emphasis on in-stream flow analysis and habitat evaluation. These activities are critical for understanding ecosystem health and supporting informed water resource management decisions within the state. The work will be carried out in Alameda, California, and is structured as a subcontract under the NAICS code 541620, which corresponds to environmental consultative services. The solicitation was posted on June 26, 2026, with responses due by July 29, 2026, and is being managed by the State Water Resources Control agency in California. The contract aims to generate scientific data to inform regulatory and conservation efforts related to water quality and biological habitats.
State Water Resources Control

POSTED

2 days ago

DEADLINE

in 30 days
View Details
NAICS: 541620
New
SLED
Cultural Resources and Tribal Consultation (AB 52)The contract requires the performance of cultural resources assessments and leadership of tribal consultation activities in accordance with California’s Assembly Bill 52, focusing on identifying, evaluating, and documenting cultural resources that may be impacted by state projects. This includes conducting comprehensive outreach to federally recognized tribes and other interested parties, facilitating meaningful consultation, and ensuring all interactions and findings are thoroughly recorded to meet regulatory compliance standards. The work is tied to projects within Alameda, with all documentation required to support environmental review processes under state law. The solicitation is categorized as a subcontract under NAICS code 541620, which encompasses environmental consulting services, and has a response deadline of July 29, 2026. It is issued by the State Water Resources Control under the California agency structure, though specific contact details and set-aside information are not provided. Potential bidders must be prepared to coordinate with tribal governments in a culturally respectful and legally compliant manner, ensuring that all activities align with AB 52 requirements and contribute to the protection of California’s significant cultural heritage. The contract opportunity is accessible through the CalEProcure portal.
State Water Resources Control

POSTED

2 days ago

DEADLINE

in 30 days
View Details
NAICS: 541620
New
SLED
Mitigation and Monitoring Program DesignThe contract seeks a subcontractor to design and document mitigation and monitoring programs aimed at addressing environmental impacts identified through CEQA reviews. The work will focus on developing scientifically sound and regulatory-compliant strategies to reduce harm to natural resources, with clear protocols for implementation, data collection, and long-term oversight. The successful bidder must demonstrate expertise in environmental planning, environmental impact assessment, and the creation of enforceable monitoring frameworks that align with California’s environmental statutes. The opportunity is open under NAICS code 541620 for environmental consulting services and is posted by the State Water Resources Control agency under the California state government. Proposals are due by July 29, 2026, and performance is expected to take place in Alameda. While no set-aside status or point of contact is specified, the subcontract nature of the award implies that prime contractors may be seeking qualified environmental specialists to fulfill contractual obligations related to CEQA compliance and environmental stewardship across state-funded projects.
State Water Resources Control

POSTED

2 days ago

DEADLINE

in 30 days
View Details
NAICS: 541620
New
SLED
Potential Environmental Compliance MonitoringThis contract opportunity relates to potential environmental compliance monitoring services required during forestry or fire management operations, with a focus on supporting environmental permitting, regulatory adherence, or related monitoring activities. The work is classified under NAICS code 541620, indicating it involves environmental consulting services, and is structured as a subcontract, suggesting the prime contractor will manage broader project objectives while leveraging this subcontractor’s expertise in compliance. The opportunity was posted on June 26, 2026, with a response deadline of July 10, 2026, and is being pursued by the state of Utah through its agency portal, with no specific city or address provided for performance location. The nature of the work implies a need for experienced professionals familiar with state and federal environmental regulations applicable to land management activities, particularly in sensitive or fire-prone ecosystems. While the solicitation number and point of contact are not listed, interested parties must submit proposals through the Utah BonfireHub platform before the deadline to be considered.
Utah

POSTED

2 days ago

DEADLINE

in 12 days
View Details

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