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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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Showing 601–650 of 13336 bids that are currently: Active.
Denotes bidding opportunities that have been amended
| California - US | Agency | Bid Type | Due Date | As PDF |
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Corporate: Anderson Dam Seismic Retrofit Project - Mechanical Contractor
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 24, 2026 |
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HVAC Pilot Property Assessments, Residential
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 22, 2026 |
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Joint Administration Office Replacement
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 19, 2026 |
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Corporate: Canyon Lake Water Treatment Plant Design-Build - heating, ventilation and air conditioning
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 18, 2026 |
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Corporate: Canyon Lake Water Treatment Plant - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 24, 2026 |
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WLA Boiler Replacement Service
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 18, 2026 |
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Boiler Replacement Service
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 21, 2026 |
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SENIOR HOUSING APARTMENTS MECHANICAL
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 28, 2026 |
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HVAC Systems
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 20, 2026 |
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HVAC REPLACEMENT SERVICES
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 15, 2026 |
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SJC Airside High Mast Lighting Replacement
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 28, 2026 |
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REDDING SERVER ROOM HVAC MINISPLIT
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 19, 2026 |
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HVAC REPLACEMENT SERVICES
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 19, 2026 |
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MECHANICAL CONTRACTOR
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 15, 2026 |
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C-20 MECHANICAL CONTRACTOR
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 15, 2026 |
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Corporate: Canyon Lake Water Treatment Plant - HVAC sub
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 24, 2026 |
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Corporate: Canyon Lake Water Treatment Plant - Mechanical sub
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 24, 2026 |
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Corporate: Bishop's Peak Elementary School Phase 2 New Classroom Building - Mechanical
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 28, 2026 |
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Heating, Ventilation, and Air Conditioning (HVAC)
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 21, 2026 |
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WWES Boiler and Pump Replacement
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 20, 2026 |
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MIDDLE SCHOOL HVAC REPLACEMENT
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 19, 2026 |
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Corporate: Ophir Water Treatment Plant - HVAC\/MECHNICAL
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 03, 2026 |
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Rooftop Air Handling\/Heating Units Replacement
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 01, 2026 |
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HVAC Replacement Services
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 20, 2026 |
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Corporate: AMVA - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 19, 2026 |
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Regional Wastewater Facility HVAC Improvements Phase 1
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 04, 2026 |
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Convention Center HVAC Control Upgrades
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 04, 2026 |
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Corporate: OUSD Garfield Elementary School - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 16, 2026 |
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Corporate: Diamond Village Phase 2 - Mechanical\/HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 26, 2026 |
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Chiller
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 11, 2026 |
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Boiler Controls Retrofit
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 27, 2026 |
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HVAC UNITS
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 22, 2026 |
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Corporate: SAN T2E Lounge Expansion - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 20, 2026 |
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Corporate: Terminal 2 East Lounge Expansion - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 21, 2026 |
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Corporate: San Diego Airport Terminal 2 East Lounge Expansion C&S - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 20, 2026 |
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On-Call HVAC Maintenance, Repair, and Emergency Services
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 22, 2026 |
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Corporate: Canyon Lake Water Treatment Plant Improvements Fixed Price Design-Build Project Delivery - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 24, 2026 |
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Corporate: Gridley Behavioral Health - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 21, 2026 |
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Building Automation Controls Replacement
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 02, 2026 |
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AIR CONDITIONING UNIT REPLACEMENT
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 26, 2026 |
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AIR CONDITIONING UNIT REPLACEMENT
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 26, 2026 |
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SCHOOL KITCHEN MINI-SPLIT INSTALLATIONS
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 27, 2026 |
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Testing, Adjusting, Balancing HVAC Systems
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 27, 2026 |
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Corporate: Gridley Behavioral Health Center - hvac
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 21, 2026 |
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Sand Canyon Headquarters and Operations Center HVAC Upgrades
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 10, 2026 |
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Corporate: Jesse Bethel High School Sports Fields Modernization - Air Distribution
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 20, 2026 |
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Corporate: City of Garden Grove Wells 22, 26, and 27 PFAS Water Treatment Plants Project - HVAC subcontractor
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 08, 2026 |
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Corporate: City of Garden Grove Wells 22, 26, and 27 PFAS Water Treatment Plants Project - Mechanical subcontractor
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 08, 2026 |
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Corporate: City of Garden Grove Wells 22, 26 # 27 PFAS WTP - HVAC\/MECHANICAL
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 08, 2026 |
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Corporate: City of Garden Grove Wells 22, 26, and 27 PFAS Water Treatment Plants Project - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 08, 2026 |
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