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NIGP 925-36: Engineering Services, General Professional (Multi-Disciplinary & Systems) — State & Local Bids & NAICS Crosswalk (740+ Bids Open)

Search 740+ Bids open state, county & municipal RFPs for NIGP 925-36 (Class 925 — Engineering Services, Professional: Engineering Services, General Professio...

NIGP 925-36 (Class 925): Engineering Services, General Professional (Multi-Disciplinary & Systems) — Active State & Local SLED Solicitations

State & local (SLED) procurement guide, state portal spend, cooperative vehicles, and NAICS/PSC crosswalk for NIGP 925-36 (Engineering Services, General Professional (Multi-Disciplinary & Systems)).

NIGP Code 925-36 — Engineering Services, General Professional (Multi-Disciplinary & Systems) — is a standardized State, Local, and Education (SLED) procurement classification within Class 925 — Engineering Services, Professional of the National Institute of Governmental Purchasing (NIGP) Commodity/Services Code taxonomy. Across all 50 states, over 33 state central purchasing offices and thousands of county governments, municipal utilities, public university systems, transit authorities, and K-12 school districts obligate approximately $7.2 Billion annually under NIGP 925-36, generating 740+ Bids active Invitations for Bid (IFBs), Requests for Proposals (RFPs), and informal quote requests each year. The NIGP taxonomy uses a hierarchical structure where the 3-digit Class (925) identifies the broad commodity or service family (Engineering Services, Professional) and the 5-digit Class-Item code (925-36) pinpoints the specific service (engineering) deliverable. When state and municipal buyers post solicitations on portals such as Texas TxDOT & ESBD, California Cal eProcure, New York NYSCR & MTA, and Virginia eVA, automated bid invitations are dispatched exclusively to vendors who have added NIGP Class 925 and Item 925-36 to their supplier registration profiles. Typical scopes of work under NIGP 925-36 include Multi-Disciplinary Civil, Structural, Mechanical, Electrical & Environmental Engineering; Transit Rail Systems Engineering, Positive Train Control (PTC) & Bus Rapid Transit (BRT); and Coastal Engineering, Dam/Levee Safety Inspections & Flood Mitigation Modeling. In addition to standalone municipal RFPs and sealed low-bid IFBs, a substantial share of NIGP 925-36 purchasing flows through cooperative purchasing agreements and statewide term contracts—including State DOT, Transit & Municipal On-Call Engineering. Holding or partnering on a cooperative master contract allows public sector buyers to issue direct purchase orders without repeating a lengthy formal solicitation cycle. Furthermore, most state and municipal procurements under NIGP 925-36 enforce Historically Underutilized Business (HUB), Minority/Women-Owned Business Enterprise (MBE/WBE), Disadvantaged Business Enterprise (DBE), or Service-Disabled Veteran-Owned Business participation goals. For contractors operating across both SLED and federal markets, NIGP 925-36 cross-walks directly to Federal Product and Service Code (PSC) R425 (Support - Professional: Engineering and Technical) and Primary NAICS 541330 (Engineering Services). InTandem's government contracting platform unifies state and local NIGP 925-36 solicitations with federal PSC R425 and NAICS 541330 bids, giving your capture team complete visibility across every jurisdiction.

NIGP 3-Digit Parent Class: Class 925 — Engineering Services, Professional
Annual State & Local (SLED) Spend: $7.2 Billion
Active Open SLED Bids: 740+ Bids
Cooperative Vehicles: State DOT, Transit & Municipal On-Call Engineering
Primary Paired NAICS Code: NAICS 541330 — Engineering Services
Paired Federal PSC Code: PSC R425 — Support - Professional: Engineering and Technical

What State, County & Municipal Buyers Procure Under NIGP 925-36

Multi-Disciplinary Civil, Structural, Mechanical, Electrical & Environmental Engineering
Transit Rail Systems Engineering, Positive Train Control (PTC) & Bus Rapid Transit (BRT)
Coastal Engineering, Dam/Levee Safety Inspections & Flood Mitigation Modeling
Construction Engineering and Inspection (CEI), Materials Testing & Quality Assurance
Public Council / Board Presentation Delivery, Stakeholder Workshops & Executive Summaries
HUB / MBE / WBE / DBE Subconsultant Utilization & Monthly Invoicing Progress Reports
Compliance with State Open Records (FOIA/PIA), Conflict of Interest & Ethics Statutes
Grant Compliance Documentation (FEMA, USDOT, EPA, HUD, ARPA/IIJA) & Audit Readiness

Top State Procurement Portals Buying NIGP 925-36

Texas TxDOT & ESBD (State of Texas): $1.6 Billion
California Cal eProcure (State of California): $1.5 Billion
New York NYSCR & MTA (State of New York): $1.2 Billion
Virginia eVA (Commonwealth of Virginia): $680 Million

Common SLED Cooperative Purchasing Vehicles

State DOT, Transit & Municipal On-Call Engineering (National & Statewide Cooperative Purchasing Agreements): Pre-competed master agreements allowing cities, counties, K-12 school districts, and state agencies to issue direct purchase orders under NIGP 925-36 without running a 90-day formal RFP.
Formal Municipal & State IFBs / RFPs (NIGP 925-36) (Sealed Competitive Bidding & Best-Value Proposals): Solicitations published on state portals (Texas TxDOT & ESBD, California Cal eProcure) where vendors registered under NIGP Class 925 and Item 925-36 receive automated bid notifications.
Multi-Year Annual Term & On-Call IDIQ Contracts (City, County, ISD & Transit Authority Blanket Orders): 1-to-5 year Indefinite Quantity or Job Order Contracts (JOC) establishing fixed unit pricing or hourly rates for recurring engineering services, general professional (multi-disciplinary & systems) requirements.

NIGP 925-36 Frequently Asked Questions

What is NIGP Code 925-36?

NIGP 925-36 (Engineering Services, General Professional (Multi-Disciplinary & Systems)) is a 5-digit Class-Item commodity/service code under Class 925 — Engineering Services, Professional. State agencies, cities, counties, school districts, and public universities use NIGP 925-36 to classify procurements and notify registered vendors for Multi-Disciplinary Civil, Structural, Mechanical, Electrical & Environmental Engineering and Transit Rail Systems Engineering, Positive Train Control (PTC) & Bus Rapid Transit (BRT).

How much do state and local governments spend under NIGP 925-36?

State, municipal, county, and educational (SLED) agencies obligate an estimated $7.2 Billion annually under NIGP 925-36, with approximately 740+ Bids active solicitations posted across state portals such as Texas TxDOT & ESBD and California Cal eProcure.

What are the Federal NAICS and PSC equivalents for NIGP 925-36?

NIGP 925-36 maps directly to Federal Primary NAICS 541330 (Engineering Services) and Federal Product and Service Code (PSC) R425 (Support - Professional: Engineering and Technical).

Which cooperative purchasing contracts cover NIGP 925-36?

Public agencies frequently procure Engineering Services, General Professional (Multi-Disciplinary & Systems) under NIGP 925-36 through cooperative and statewide vehicles including State DOT, Transit & Municipal On-Call Engineering, as well as municipal annual term contracts.

Should I register for NIGP 925-36 or the full NIGP Class 925?

You should register for both NIGP 925-36 (Engineering Services, General Professional (Multi-Disciplinary & Systems)) and the parent 3-digit NIGP Class 925 (Engineering Services, Professional), including 925-00 and related codes like 925-17, so you never miss a solicitation when a local buyer codes a bid broadly.

Related NIGP Commodity/Services Codes

Browse All 136 NIGP Commodity Codes | NAICS 541330 Guide | PSC R425 Guide | 50-State Procurement Portals