The Sector as a Whole The construction sector comprises establishments primarily engaged in the construction of buildings or engineering projects (e.g., highways and utility systems). Establishments primarily engaged in the preparation of sites for new construction and establishments primarily engaged in subdividing land for sale as building sites also are included in this sector. Construction work done may include new work, additions, alterations, or maintenance and repairs. Activities of these establishments generally are managed at a fixed place of business, but they usually perform construction activities at multiple project sites. Production responsibilities for establishments in this sector are usually specified in (1) contracts with the owners of construction projects (prime contracts) or (2) contracts with other construction establishments (subcontracts). Establishments primarily engaged in contracts that include responsibility for all aspects of individual construction projects are commonly known as general contractors, but also may be known as design-builders, construction managers, turnkey contractors, or (in cases where two or more establishments jointly secure a general contract) joint-venture contractors. Construction managers that provide oversight and scheduling only (i.e., agency) as well as construction managers that are responsible for the entire project (i.e., at risk) are included as general contractor type establishments. Establishments of the "general contractor type" frequently arrange construction of separate parts of their projects through subcontracts with other construction establishments. Establishments primarily engaged in activities to produce a specific component (e.g., masonry, painting, and electrical work) of a construction project are commonly known as specialty trade contractors. Activities of specialty trade contractors are usually subcontracted from other construction establishments, but especially in remodeling and repair construction, the work may be done directly for the owner of the property. Establishments primarily engaged in activities to construct buildings to be sold on sites that they own are known as operative builders, but also may be known as speculative builders or merchant builders. Operative builders produce buildings in a manner similar to general contractors, but their production processes also include site acquisition and securing of financial backing. Operative builders are most often associated with the construction of residential buildings. Like general contractors, they may subcontract all or part of the actual construction work on their buildings. There are substantial differences in the types of equipment, work force skills, and other inputs required by establishments in this sector. To highlight these differences and variations in the underlying production functions, this sector is divided into three subsectors. Subsector 236, Construction of Buildings, comprises establishments of the general contractor type and operative builders involved in the construction of buildings. Subsector 237, Heavy and Civil Engineering Construction, comprises establishments involved in the construction of engineering projects. Subsector 238, Specialty Trade Contractors, comprises establishments engaged in specialty trade activities generally needed in the construction of all types of buildings. Force account construction is construction work performed by an enterprise primarily engaged in some business other than construction for its own account and use, using employees of the enterprise. This activity is not included in the construction sector unless the construction work performed is the primary activity of a separate establishment of the enterprise. The installation and the ongoing repair and maintenance of telecommunications and utility networks is excluded from construction when the establishments performing the work are not independent contractors. Although a growing proportion of this work is subcontracted to independent contractors in the Construction Sector, the operating units of telecommunications and utility companies performing this work are included with the telecommunications or utility activities.
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| Illinois - US | Agency | Bid Type | Due Date | As PDF |
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Corporate: GLEN CARBON WATER TREATMENT PLANT - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 23, 2026 |
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23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 03, 2026 |
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23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | Federal Prebids | Mar. 11, 2026 |
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Corporate: STUDENT CENTER RENOVATION PHASE 3 - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 16, 2026 |
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Beyer EC Restroom Renovation & Plumbing Upgrades
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 05, 2026 |
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Corporate: Honda - Mechanical
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 25, 2026 |
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Scum Separator Building HVAC and Roof Replacement
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 17, 2026 |
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Corporate: Battery E Activated Sludge Facility - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 28, 2026 |
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Corporate: Logan Square Blue Line Station Headhouse Reconstruction - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 27, 2026 |
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HVAC Inspections, Service, Maintenance, and Authorized Repairs
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 24, 2026 |
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Hamilton ES-MEP
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 19, 2026 |
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High School Master Facility Phase 2 - Mechanical
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 20, 2026 |
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HVAC Replacement
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 24, 2026 |
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TEFFT MIDDLE SCHOOL HVAC REPLACEMENT
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 25, 2026 |
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Corporate: Water Treatment Plant Project - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 23, 2026 |
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METCOM HVAC SYSTEMS REPLACEMENT
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 26, 2026 |
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HVAC Upgrades \u2013 Phase III
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 03, 2026 |
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Corporate: High School Campus Fine Arts Addition & Remodeling - Mechanical
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 26, 2026 |
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Corporate: High School Science Classroom Renovation - Mechanical
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 26, 2026 |
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Various mechanical services
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 23, 2026 |
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23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Feb. 25, 2026 |
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Corporate: Roosevelt Community Education Center-Science Lab - HVAC - N
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 16, 2026 |
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Corporate: Roosevelt Community Education Center-Science Lab - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 16, 2026 |
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Corporate: Sycamore_2026 Influent Pump Station Improvements - Heating, Vent & Air-Cond
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 24, 2026 |
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D300 2026 Summer Renovation - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 03, 2026 |
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Corporate: Roselle Public Library District New Building - HVAC\/Geothermal
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 03, 2026 |
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WEST CAMPUS INFRASTRUCTURE - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 05, 2026 |
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D300 2026 Summer - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 24, 2026 |
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Corporate: Rebuild of Dewatering Facility, CWRP - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 24, 2026 |
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Mechanical Work
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 05, 2026 |
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Corporate: Rockford_Well No 46 Water Treatment Facility - Heating, Vent & Air-Cond
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 19, 2026 |
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Corporate: New Meadowbrook Elementary School - Heating, Vent & Air-Cond
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 17, 2026 |
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HVAC Scheduled Inspections, Service, Maintenance, and Authorized Repairs
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 18, 2026 |
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MASONRY RESORATION
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 27, 2026 |
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23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 31, 2027 |
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23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 03, 2026 |
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23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 25, 2026 |
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Corporate: MWRD_Electrical Power Distribution & Phosphorus Removal - Pre-Engineered Buildings
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 15, 2026 |
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23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | Federal Prebids | Mar. 04, 2026 |
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Various Trades Work For The Operations And Maintenance Program
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 27, 2026 |
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Corporate: GLEN CARBON WATER TREATMENT PLANT - MASONRY
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 23, 2026 |
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Corporate: GLEN CARBON WATER TREATMENT PLANT - THERMAL AND MOISTURE PROTECTION
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 23, 2026 |
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Corporate: GLEN CARBON WATER TREATMENT PLANT - OPENINGS
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 23, 2026 |
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Corporate: GLEN CARBON WATER TREATMENT PLANT - FINISHES
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 23, 2026 |
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Corporate: GLEN CARBON WATER TREATMENT PLANT - SPECIALTIES
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 23, 2026 |
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Corporate: GLEN CARBON WATER TREATMENT PLANT - EARTHWORK
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 23, 2026 |
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Corporate: GLEN CARBON WATER TREATMENT PLANT - EXTERIOR IMPROVEMENTS
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 23, 2026 |
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Corporate: GLEN CARBON WATER TREATMENT PLANT - UTILITIES
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 23, 2026 |
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Corporate: GLEN CARBON WATER TREATMENT PLANT - PROCESS INTEGRATION
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 23, 2026 |
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23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 26, 2026 |
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