9 Open NAICS 541990 Solicitations — Transportation Department Of
All Other Professional, Scientific, and Technical Services
9 open NAICS 541990 solicitations are currently posted by Transportation Department Of. Over the past 12 months, 13 solicitations were posted in this category.
Open Solicitations
See all →- Notice of Intent to Sole Source - Defensive Counterintelligence & Insider Threat Program Support Services - PHK ENTERPRISES, LLC
TRANSPORTATION, DEPARTMENT OFDue Aug 31, 2026
• PHK Enterprises, LLC provides professional and technical support services under the terms of this sole source contract for the U.S. Department of Transportation's Defensive Counterintelligence and Insider Threat Program (DCIITP). • The Contractor shall offer services including counterintelligence analysis, insider threat detection and monitoring using user activity tracking, and policy development; however, Sensitive Security Information (SSI) handling is not included in this contract. • Responses to solicitations received by the end date of June 30, 2026. (*) Deadline is replaced as per request.
- Post-Construction Environmental Compliance Monitoring Services for OR FLAP GRANT 24(2) Granite Hill Road Reconstruction Phase II
TRANSPORTATION, DEPARTMENT OFDue Sep 1, 2026
• The State University of New York, Purchase Medical Center requires post-construction environmental compliance monitoring services at its facility located in New York. • As a Total Small Business Set-Aside, no further solicitations will be issued; offers are being requested with unlimited competition. • The period of performance is 12 months, commencing upon award and ending on December 31, 2028.
- 3D LiDAR AND SMARTPHONE-BASED PLATFORMS FOR MOTOR VEHICLE TRAFFIC DATA
TRANSPORTATION, DEPARTMENT OFDue Sep 2, 2026
• The U.S. Transportation Department needs dual-platform approach to roadway data collection using 3D LiDAR and smartphone-based platforms for enhanced safety and operational efficiency of selected roadway facilities. • This acquisition is set aside for small businesses under NAICS code 811219 (Other Electronic and Precision Equipment Repair), except for the RFQ which requires unrestricted full and open competition. • The contract spans one base year plus two option years at various roadway facilities nationwide, with a deadline for responses being July 2, 2027.
Frequently Asked Questions
What professional services contracts does the federal government award (NAICS 54)?
NAICS sector 54 (Professional, Scientific, and Technical Services) is one of the largest federal contracting sectors, covering IT consulting, engineering, R&D, management consulting, architecture, legal services, and accounting. Major buyers include DoD, DHS, VA, and civilian agencies across all categories.
How do I find federal contracting opportunities?
Federal contracting opportunities are posted on SAM.gov (System for Award Management). You can search by keyword, NAICS code, set-aside type, agency, and response deadline. FedOps aggregates and enriches SAM.gov data daily so you can filter and track opportunities in one place.
What is a set-aside in federal contracting?
A set-aside is a procurement reserved for a specific category of small business. Common set-asides include SDVOSB (Service-Disabled Veteran-Owned), 8(a), WOSB (Women-Owned), HUBZone, and Small Business. Only businesses that meet the eligibility requirements can bid on a set-aside contract.
How do I register to bid on federal contracts?
You must register your business in SAM.gov (sam.gov), which is free. You'll need a DUNS/UEI number, NAICS codes for your business, bank account information for electronic funds transfer, and applicable certifications (8(a), SDVOSB, WOSB, etc.) if bidding on set-asides. Registration is renewed annually.