samsearch
    Platform
    01InfluenceShape the requirement before it's on your competitor's radar.
    Signal
    Recompete window opens in 42 days
    Facilities maintenance IDIQ$8.4M
    Forecast
    Agency spend up 18% next FY
    DoD facilitiesQ3 window
    02CaptureFind and qualify the work across every market.
    Federal91%
    Network engineering support — GSA MAS
    GSA541512
    SLED88%
    Custodial services — Fairfax County Public Schools
    K-12561720
    DIBBS79%
    Aircraft hydraulic fitting — DLA Aviation
    DLANSN 5330
    03AnalyzeExtract requirements and build the compliance matrix.
    Compliance matrix
    L.2.1Technical approachVol I
    L.3.4Staffing planVol I
    M.1Past performanceEvaluated
    SOW breakdown
    Requirements extracted38
    Mapped to Section L/M38
    Every extractionCited
    Ask Sammy
    “Do we meet the small business set-aside?”
    04ManageRun the pursuit through to award.
    Pipeline
    QualifyFacilities support · USACE
    CaptureComms upgrade · DLA
    ProposalShipyard dredging · NAVSEA
    PriyaAlex
    This week
    Submit past performance refsThu
    Confirm subK teamingFri
    Upload SF 33Mon
    05RespondDraft and submit your response.
    Drafting · Volume I
    247 words
    RFI response
    CompanyAcme Robotics LLC
    UEIJK4M8…
    Capability narrativeDrafted
    06FinanceGet paid faster on what you win.
    Capital available
    $2.4M against your award
    Facilities maintenance IDIQAwarded
    Partner matched
    LenderFederal Capital Partners
    Draw available$2.4M
    UnderwritingCleared
    The platform
    Influence
    Capture
    Analyze
    Manage
    Respond
    Finance
    One pipeline, six stages, start to award.
    See the whole platform
    Solutions
    By industry
    Tech & softwareSoftware and SaaS companies entering GovCon.Defense contractorsPrimes and subs in the defense industrial base.ConstructionBuilders bidding federal, state, and local work.CybersecuritySecurity vendors pursuing federal mandates.
    By team
    Capture managers & BDPipeline, qualification, and win strategy.Proposal teamsCompliance matrices and proposal drafting.Subcontractors & primesTeaming, subcontracting, and partner fit.
    By company size
    Small businessesSet-aside and small business contractors.EnterpriseLarge contractors running multiple pursuits.ConsultantsAdvisors and capture consultants.
    Browse all industries
    CustomersPricing
    ResourcesNew
    Learn
    AcademyCourses, guides, and playbooks.WebinarsLive sessions and recordings.DocsProduct documentation and setup guides.Implementation planOperational rollout guidance.
    Tools & data
    Free GovCon toolsCalculators, lookups, and more.Gov ExploreContracts, agencies, and NAICS codes.GovCon eventsConferences, training, and set-aside events.
    Latest blogIntroducing the New SamSearch: The Operating System for Government ContractingSamSearch has a new brand, a new site, and a new way of explaining what the platform actually does — the operating system for government contracting, organized around six stages instead of a single search box. Here's what changed and why.Read the post →
    All resources and tools
    Sign inRequest a demo
    /

    SamSearch Platform

    Stop searching. Start winning.

    AI-powered intelligence for the right opportunities, the right leads, and the right time.

    Book a Demo
    samsearch

    The Complete AI Platform for Government Contracting

    Platform
    • Product
    • Pricing
    • ROI calculator
    • Integrations
    • Changelog
    Solutions
    • Solutions
    • Customers
    • Comparisons
    • Market watch
    Resources
    • Blog
    • Free GovCon tools
    • Glossary
    • Docs
    Company
    • API & partnerships
    • Careers
    • Support
    • Compliance
    • Trust centre
    • Contact
    Recognised & verified
    SOC 2 Type II Compliant, SamSearchAWS Partner - Advanced, SamSearch on AWS MarketplaceGartner Peer Insights Customer First, SamSearch
    Ask AI about samsearch
    Ask ChatGPTAsk ClaudeAsk Perplexity
    Follow

    © 2026 samsearch. All rights reserved.

    Terms of usePrivacy policy
    1. Home
    2. /Gov Explore
    3. /NAICS Codes
    4. /237990

    NAICS Demand Lane

    Other Heavy and Civil Engineering Construction, Contract Opportunities

    10,906 total opportunities (10,906 active) tied to NAICS 237990 across federal, state, local, and forecast sources.
    NAICS 237990Federal + SLED10.9K total
    View NAICS definition →
    Total Opportunities
    10.9K
    Across all indexed sources
    Active Estimate
    10.9K
    Approximate active count
    Source Count
    3
    Federal, SLED, and forecast lanes

    Latest federal solicitations for NAICS 237990.

    DEPT OF DEFENSE

    CHIEF JOSEPH DAM 480V STATION SERVICE SQ1-3, & DSQ 1-2

    Active

    AI Summary

    The Department of Defense is anticipating a solicitation for the Chief Joseph Dam 480V Station Service project, which involves replacing aging electrical equipment. The estimated construction cost is between $5 million and $10 million, with a performance period of 1,000 days. This is a total small business set-aside op…

    WA

    Posted Sep 4, 2026Due Sep 18, 2026PresolicitationNAICS 237990Total Small Business Set-Aside (FAR 19.5)Sol: W912DW26RA053
    View details→

    DEPT OF DEFENSE

    FINDERNE FARMS WETLAND MITIGATION SITE, BRIDGEWATER, NJ

    Active

    AI Summary

    The Department of Defense is soliciting proposals for the Finderne Farms Wetland Mitigation Site in Bridgewater, NJ. This opportunity involves environmental services related to wetland mitigation. A site visit is scheduled, and interested bidders should prepare accordingly.

    NY

    Posted Sep 4, 2026Due Sep 9, 2026SolicitationNAICS 237990Sol: W912DS26BA025
    View details→

    DEPT OF DEFENSE

    CALCASIEU RIVER AND PASS, LA, MAINTENANCE DREDGING FY26, MILE 5.0 TO MILE 17.0, INCLUDING BENEFICIAL USE WITHIN CWPPRA SABINE CYCLE 6 MARSH CREATION AREAS, CALCASIEU AND CAMERON PARISHES, LA ED 23-024

    Active

    AI Summary

    This opportunity involves maintenance dredging of the Calcasieu River and Pass, including beneficial use within marsh creation areas. The project has an estimated construction cost between $25 million and $100 million, with a completion time of 300 days. The solicitation is unrestricted and includes various constructio…

    LA

    Posted Sep 4, 2026Due Sep 16, 2026SolicitationNAICS 237990Sol: W912P826BA023
    View details→

    DEPT OF DEFENSE

    PLACEMENT AREA MATOC, TEXAS

    Active

    AI Summary

    The Department of Defense is soliciting for a MATOC in Texas, focusing on construction services. This opportunity is set aside for SBA and is categorized under NAICS code 237990. Bidders should prepare for a competitive solicitation process.

    TX

    Posted Sep 4, 2026Due Oct 5, 2026SolicitationNAICS 237990Total Small Business Set-Aside (FAR 19.5)Sol: W912HY26RA008
    View details→

    DEPARTMENT OF THE INTERIOR

    C--DREDGING OF SEDIMENT POND & CONTACT POOL

    Active

    AI Summary

    The US Geological Survey requires dredging services for Pond 3 and a chlorine contact tank in Jefferson County, West Virginia. The project includes removing sediment and debris, with a performance period of 60 days post-notice to proceed. This opportunity is a 100% Small Business Set Aside, and quotes are due by Septem…

    VA

    Posted Sep 4, 2026Due Sep 8, 2026SolicitationNAICS 237990Total Small Business Set-Aside (FAR 19.5)Sol: 140G0126Q0241
    View details→

    DEPT OF DEFENSE

    THOMAS J. O BRIEN (TJO) EMBANKMENT REPAIR

    Active

    AI Summary

    The U.S. Army Corps of Engineers is soliciting bids for the Thomas J. O'Brien Embankment Repair project in Chicago, Illinois. This construction project involves raising embankment height, clearing vegetation, repairing culverts, and placing riprap. The estimated cost is between $1,000,000 and $5,000,000, and the solici…

    IL

    Posted Sep 4, 2026Due Sep 14, 2026SolicitationNAICS 2379908(a) Set-Aside (FAR 19.8)Sol: W912P626BA028
    View details→

    DEPT OF DEFENSE

    USACE NATIONAL ENTERPRISE DREDGING CENTER SCOPE DREDGE TO BUDGET CONTRACT

    Active

    AI Summary

    The USACE is hosting a Virtual Industry Day on October 16, 2026, to discuss the Scope Dredge to Budget acquisition strategy for dredging services in the Galveston/Houston area. Interested companies are encouraged to attend and provide feedback on the proposed strategies. RSVP by October 15, 2026, to participate.

    NC

    Posted Sep 4, 2026Due Oct 15, 2026Special NoticeNAICS 237990Sol: W912PM27RA006
    View details→

    DEPARTMENT OF AGRICULTURE

    FOREST WIDE DECOMMISSIONING, GUNNISON NATIONAL FOREST COLORADO

    Active

    AI Summary

    The Grand Mesa, Uncompahgre and Gunnison National Forests are seeking contractors for the removal of unusable structures at three campgrounds in Colorado. The project includes decommissioning a toilet building, abandoning water wells, and removing a concrete water tank. Interested bidders should prepare to submit propo…

    UT

    Posted Sep 4, 2026Due Sep 22, 2026SolicitationNAICS 237990Total Small Business Set-Aside (FAR 19.5)Sol: 1240LT26Q0177
    View details→

    DEPT OF DEFENSE

    HALEIWA SMALL BOAT HARBOR MAINTENANCE DREDGING AND REVETTED MOLE REPAIR, HALEIWA, OAHU, HAWAII

    Active

    AI Summary

    The opportunity involves maintenance dredging and revetted mole repair at Haleiwa Small Boat Harbor in Oahu, Hawaii. This solicitation is issued by the Department of Defense, specifically the Department of the Army. Interested bidders should refer to the Procurement Integrated Enterprise Environment (PIEE) for the late…

    HI

    Posted Sep 4, 2026Due Oct 8, 2026SolicitationNAICS 237990Sol: W9128A26BA002
    View details→

    DEPT OF DEFENSE

    W912HV27BA003 FY27 Maintenance Dredging Yokohama North Dock

    Active

    AI Summary

    The U.S. Army Corps of Engineers is seeking to prequalify sources for the FY27 Maintenance Dredging project at Yokohama North Dock. This presolicitation is part of the procedures authorized by Class Deviation 2026 O0019. Interested parties should prepare for the upcoming solicitation W912HV27BA003.

    AP

    Posted Sep 4, 2026Due Oct 7, 2026PresolicitationNAICS 237990Sol: W912HV-27-B-A003
    View details→

    Source mix

    How this NAICS code is represented across indexed contract sources.

    federal
    9,050
    sled
    1,729
    forecast
    127

    Related NAICS Codes

    • 23, Construction→
    • 236, Construction of Buildings→
    • 2361, Residential Building Construction→
    • 23611, Residential Building Construction→
    • 236115, New Single-Family Housing Construction (except For-Sale Builders) →
    • 236116, New Multifamily Housing Construction (except For-Sale Builders) →
    • 236117, New Housing For-Sale Builders →
    • 236118, Residential Remodelers →
    • 2362, Nonresidential Building Construction→
    • 23621, Industrial Building Construction→

    Explore

    • 237990 Definition→
    • Browse NAICS Codes→
    • PSC Contract Lanes→
    • AI Contract Categories→
    • Browse by Agency→
    • Browse by State→

    About NAICS 237990

    This industry comprises establishments primarily engaged in heavy and civil engineering construction projects not classified under other specific categories. Activities include specialized construction such as underwater construction, pile driving, and other heavy construction projects.

    Read the full NAICS definition →