UNSPSC 81101800: Chemical engineering

UNSPSC 81101800 Chemical engineering is a Class code that encompasses professional engineering services for facility design, environmental assessment, and technical support across water, wastewater, infrastructure, and utility systems. State and local governments soliciting under this code buy design engineering, feasibility studies, system modeling, permitting support, construction administration, and specialized technical consultation—typically embedded within larger capital projects or on an as-needed basis through task-order contracts. The recent solicitation activity shows a heavy emphasis on architect-engineer (A-E) pre-qualification for qualified vendor lists (QVL) rather than individual project procurements, with state and local agencies establishing multiple-award pools of consultants to draw from as projects arise.

Issuing bodies include county public works departments, water and wastewater authorities, cities, state departments of transportation, and special-purpose districts. The County of Orange, California appears repeatedly as a standout buyer, posting multiple RFQs for A-E services across disciplines including flood control engineering, cost estimating, MEP design support, land surveying, CIP project management, geotechnical and materials testing, green infrastructure, power generation and commissioning, and airport planning and materials testing—all structured as three-year QVL contracts with multiple awards and task-order assignment. Beyond Orange County, the recent opportunities span Georgia (GDOT general engineering consulting and construction engineering inspection for highway projects; City of Union City plan review and inspection; City of Nicholls gymnasium design following Hurricane Helene damage), Florida (Tampa Bay Water as-needed engineering across multiple disciplines; Orange County utilities continuing engineering; City of Fort Myers water wellfield expansion design-build), Arizona (City of Tucson on-call electrical and SCADA design for water facilities), Michigan (Great Lakes Water Authority third-party design review), Georgia counties (Madison County wastewater treatment and sewer extension design), and other municipal and regional authorities nationwide. Geographic spread concentrates heavily in California (particularly Orange County) and Georgia, with scattered activity across Florida, Arizona, Michigan, and other states. Representative recent opportunities include the State of Utah Division of Purchasing's RFP SB266 for construction project management services (due August 20, 2026), covering site due diligence, design support, procurement planning, and construction surveillance across planning and design phases with $6.47 million in historical usage (2020–2025) split primarily between K-12 schools (55.5%), cities (19%), and service districts (17%); the County of Orange RFQ 0803091002RE for flood control engineering services (due August 13, 2026), establishing a pre-qualified vendor list for hydraulic and hydrologic analyses, design, floodplain management, and levee recertification; and Tampa Bay Water's RFP 2026046055 for as-needed engineering services (due April 14, 2026), awarding up to ten contracts of $1.25 million each for comprehensive task-order support across water resources, construction management, treatment, stormwater, and related disciplines.