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NAICS Code· 541690

NAICS 541690: Other Scientific and Technical Consulting Services

This industry comprises establishments primarily engaged in providing advice and assistance to businesses and other organizations on scientific and technical issues (except environmental). Illustrative Examples: Agricultural consulting services Motion picture consulting services Biological consulting services Physics consulting services Chemical consulting services Radio consulting services Economic consulting services Safety consulting services Energy consulting services Security consulting services Cross-References. Establishments primarily engaged in--Show more

NAICS 541690 — Other Scientific and Technical Consulting Services encompasses a broad spectrum of specialized advisory work that supports federal mission objectives through non-routine, expert-driven analysis and technical guidance. This category includes services such as policy evaluation, operational modeling, data analytics, systems optimization, environmental impact assessment, and niche engineering consulting that fall outside more defined NAICS categories like engineering or IT design.

1.8K
Active Contracts
$708.5M
Total Obligations (12mo)
1.1K
Awarded Contracts (12mo)
541
Contractors Awarded (12mo)
1
Median Bidders per Award
-64.5%
YoY Growth

Contract Opportunities

Active solicitations and awarded contracts classified under NAICS 541690 — Other Scientific and Technical Consulting Services.

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NAICS 541690 FAQ

Frequently Asked Questions

NAICS code 541690 covers Other Scientific and Technical Consulting Services. This industry comprises establishments primarily engaged in providing advice and assistance to businesses and other organizations on scientific and technical issues (except environmental). Illustrative Examples: Agricultural consulting services Motion picture consulting services Biological consulting services Physics consulting services Chemical consulting services Radio consulting services Economic consulting services Safety consulting services Energy consulting services Security consulting services Cross-References. Establishments primarily engaged in--

Recently Posted in Other Scientific and Technical Consulting Services

NAICS: 541690
New
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Asphalt Mix Design and Technical Support
Materials and Tests Division

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in 6 months

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NAICS: 541690
New
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Traffic Data Analytics and Performance Validation
Traffic Safety Division

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in 6 months

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N/A
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NAICS: 541690
New
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Traffic Control & Safety Compliance Monitoring
Houston District

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in 6 months

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N/A
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NAICS: 541690
New
SLED
Call 014 2023500016
Solicitation # 2023500016
The solicitation titled Call 003 2023500016, issued by the West Virginia Department of Transportation, is categorized as a state and local government procurement with no specific set-aside designation. It was posted on August 11, 2026, with a response deadline set for the same date and time, indicating an immediate or potentially erroneous submission window. The contract pertains to work located in Wayne, West Virginia, and is intended to support transportation infrastructure initiatives. Bidders are expected to leverage detailed bid tab analysis and competitor insights to evaluate historical pricing across items and locations, enabling strategic positioning against other proposers. The agency does not list a point of contact, and all submission and information access must occur through the provided online portal at the BIDX platform. No NAICS code or additional organizational details are specified in the posting.
West Virginia Department of Transportation

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in 16 days

DEADLINE

in 16 days
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NAICS: 541690
New
SLED
Call 012 2024080021
Solicitation # 2024080021
The West Virginia Department of Transportation, Division of Highways, has issued solicitation 2024080021 for the Clay-Whetstone resurfacing project in Clay County, West Virginia, identified by project numbers S308-004-13.25 00 and STBG-0004(219)D. The scope involves resurfacing work with an anticipated disturbance of less than one acre, to be completed by November 20, 2026, following notice to proceed issued no later than ten calendar days after award. All construction must comply with the 2023 West Virginia Department of Transportation Division of Highways Standard Specifications for Roads and Bridges, as amended by the 2026 Supplemental Specifications, along with the official contract plans and documents available via www.Bidx.com. Bids are due by 10:00 AM on September 15, 2026, and must be submitted exclusively through the BidX portal. The contract is federally funded and incorporates full compliance with Davis-Bacon and Related Acts, requiring prevailing wage rates for laborers and mechanics, with a minimum hourly rate of $13.65 effective May 11, 2026, through December 31, 2026, under Executive Order 13658. Contractors must also adhere to Copeland Act requirements and submit electronic certified payrolls via the CRL module, making payments to subcontractors within fourteen days of receiving state payment. The Disadvantaged Business Enterprise program under 49 CFR Part 26 and Title VI nondiscrimination provisions under 49 CFR Part 21 and U.S. DOT Order 1050.2A are fully incorporated, alongside the Americans with Disabilities Act under 28 CFR Part 35 and 29 CFR Part 1630. The contract includes special provisions for subcontractor prompt payment, electronic payroll and payment submission, and legal responsibilities under Section 107. Oceanic shipments for materials require at least 50 percent gross tonnage to be transported via U.S.-flagged commercial vessels under 46 CFR 381.7, and all offerors must certify compliance with debarment, suspension, and anti-collusion requirements per 2 CFR 180, including a three-year review of prior contract defaults, fraud convictions, and unpaid federal tax liabilities
West Virginia Department of Transportation

POSTED

in 16 days

DEADLINE

in 16 days
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NAICS: 541690
New
SLED
Call 011 70014-223352
Solicitation # 70014-223352
The Michigan Department of Transportation has issued solicitation 70014-223352, categorized under NAICS code 541690. This SLED organization project is designated for performance within Ottawa County, Michigan. The solicitation was posted on September 4, 2026, with the response deadline set for the same date. Interested parties can access further details and proposals through the provided official portal link.
Michigan Department of Transportation

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in 5 days

DEADLINE

in 5 days
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NAICS: 541690
New
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Railroad Coordination and Safety ComplianceThe contract requires comprehensive coordination with Union Pacific Railroad to ensure all activities near active rail lines are conducted safely and in full compliance with regulatory standards. This includes managing advance notifications to railroad authorities, verifying adherence to mandatory safety training protocols, and enforcing strict access procedures for personnel and equipment operating in proximity to rail infrastructure. The work is tied to a transportation project in Madera, California, under the oversight of the California Department of Transportation, and is structured as a subcontract under NAICS code 541690, which covers other scientific and technical consulting services. All parties must maintain continuous compliance with railroad safety requirements to prevent disruptions and protect public and worker safety.
California Department of Transportation

POSTED

in 4 days

DEADLINE

in 4 days
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NAICS: 541690
New
SLED
Call 541 T%20-45968-A
Solicitation # T%20-45968-A
The solicitation T-45968-A, issued by the Indiana Department of Transportation, is a competitive procurement under NAICS code 541690 targeting professional, scientific, and technical services. Posting on September 2, 2026, with an identical response deadline, the opportunity requires timely submission and is designated for state, local, and educational government procurement. The place of performance is specified in Allen County, Indiana, indicating work will be conducted within that region. The contract includes access to comprehensive Bid Tab Analysis and Competitor Insights tools, enabling bidders to review historical pricing data across items and locations to evaluate and position their proposals against other respondents. Although no specific point of contact is listed, the bidding process can be accessed via the provided uiLink for official documentation and submission guidelines. There is no set-aside classification indicated, meaning the solicitation is open to all eligible contractors without preference based on size or status.
Indiana Department of Transportation

POSTED

in 3 days

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in 3 days
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NAICS: 541690
New
SLED
Call 141 R%20-43371-A
Solicitation # R%20-43371-A
The solicitation R-43371-A, issued by the Indiana Department of Transportation, is a state and local government procurement opportunity with a posted date and response deadline both set for September 2, 2026. It targets contractors seeking to provide services related to transportation infrastructure in Dearborn, Indiana, with no specific set-aside classification designated. The contract is part of a broader suite that includes Bid Tab Analysis and Competitor Insights, enabling bidders to access historical pricing data across items and locations to benchmark against other proposers and strengthen their competitive positioning. The agency is based in Indiana, and while the office address details are not fully provided, the performance location is clearly identified as Dearborn within the state. Bidders are directed to the online portal for further details and submission, with no point of contact listed in the provided data.
Indiana Department of Transportation

POSTED

in 3 days

DEADLINE

in 3 days
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NAICS: 541690
New
SLED
Safety Compliance and Training ServicesThe contract involves the provision of a dedicated Safety Representative and the delivery of mandatory safety training programs on a job site in Santa Clara, California, under a subcontract arrangement with the California Department of Transportation. The scope includes ensuring full compliance with workplace safety protocols and delivering specialized training on protected species awareness to all relevant personnel, aiming to meet environmental and regulatory standards during construction or maintenance activities. The work is governed under NAICS code 541690, reflecting its focus on other scientific and technical consulting services, and the performance location is strictly confined to the Santa Clara area. The posting and response deadlines are both set for September 1, 2026, indicating a planned procurement timeline aligned with anticipated project phases. All deliverables must align with state-mandated safety and environmental guidelines, and the contractor is expected to implement practices that mitigate risks to both workers and local ecosystems.
California Department of Transportation

POSTED

in 2 days

DEADLINE

in 2 days
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NAICS: 541690
New
SLED
Structural Condition Reporting and Technical Documentation
Traffic Safety Division

POSTED

in 1 day

DEADLINE

N/A
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NAICS: 541690
New
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Data Analysis and Lifecycle Cost Modeling for VE Alternatives
Design Division

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in 1 day

DEADLINE

N/A
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