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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 651–700 of 15087 bids that are currently: Active.

Denotes bidding opportunities that have been amended

California - US Due Date
Corporate: Special Education Classroom Addition at Caruthers ES Project C2025-13 - HVAC
23 - Construction
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Feb. 11, 2026
Corporate: REDWOOD MS MODERNIZATION - HVAC Install
23 - Construction
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Feb. 18, 2026
Corporate: REDWOOD MS MODERNIZATION - HVAC Controls for HVAC
23 - Construction
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Feb. 18, 2026
Corporate: CITY OF CORNING PLAZA AND RECREATION CENTER - mechanical
23 - Construction
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Feb. 19, 2026
Corporate: SECONDARY TREATMENT SYSTEM UPGRADES PROJECT - HVAC
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Mar. 03, 2026
Corporate: Cater Reservoir Resiliency Project - HVAC
23 - Construction
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Feb. 07, 2026
AIR CONDITIONING UNIT REPLACEMENT
23 - Construction
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Mar. 02, 2026
Corporate: CALPINE WELL AND TREATMENT PROJECT - HVAC
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Feb. 19, 2026
Isolation Room Testing, Air Balancing, and Certification Services
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Feb. 23, 2026
HVAC Contractor
23 - Construction
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Feb. 24, 2026
Corporate: District Restroom Projects \u2013 Package B at Chico Jr. High School, Hooker Oak Elementary School, and Marsh Jr. High - HVAC
23 - Construction
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Feb. 10, 2026
Corporate: District Restroom Projects \u2013 Package B at Chico Jr. High School, Hooker Oak Elementary School, and Marsh Jr. High - HVAC air distribution
23 - Construction
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Feb. 10, 2026
HOSPITAL BUILDING 70 HVAC AND REROOF
23 - Construction
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Feb. 27, 2026
Corporate: Calpine Well and Treatment Project - Mechanical
23 - Construction
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Feb. 19, 2026
Corporate: Calpine Well and Treatment Project - HVAC
23 - Construction
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Feb. 19, 2026
HVAC Replacement Services
23 - Construction
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Mar. 31, 2026
HVAC System Refurbishment
23 - Construction
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Feb. 19, 2026
RBHS Chiller Replacement Phase 1
23 - Construction
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Feb. 23, 2026
Corporate: Alchemist Public Market - HVAC
23 - Construction
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Feb. 23, 2026
Corporate: Calpine Well & Treatment Project - HVAC
23 - Construction
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Feb. 19, 2026
Corporate: City of Corning Plaza and Recreation Center - Mechanical
23 - Construction
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Feb. 19, 2026
Corporate: Town of Windsor \u2013 Secondary Treatment System Upgrades Project - HVAC
23 - Construction
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Mar. 03, 2026
High School Kitchen Split Systems Addition
23 - Construction
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Feb. 17, 2026
POLICE ACADEMY MAT ROOM \u2013 HVAC REPLACEMENT
23 - Construction
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Feb. 17, 2026
Corporate: 26th Street MARS\/ELO-P Facility Increments No. 1 & No. 2 - HVAC
23 - Construction
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Feb. 17, 2026
Uninterrupted Power Supply (UPS) Replacement
23 - Construction
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Feb. 25, 2026
Corporate: JCC Butte Juvenile Court Renovation - HVAC
23 - Construction
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Mar. 03, 2026
Corporate: LAX UAL Hangar Demo - HVAC
23 - Construction
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Feb. 19, 2026
Corporate: City of Fontana City Hall Renovation - Phase II - HVAC
23 - Construction
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Feb. 11, 2026
HVAC Replacement
23 - Construction
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Feb. 06, 2026
AIR HANDLER UNIT REPLACEMENT
23 - Construction
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Mar. 11, 2026
Corporate: Mission Bay South Block 4E PH1 & PH2 - HVAC
23 - Construction
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Mar. 03, 2026
Corporate: Merced City School District - Mechanical
23 - Construction
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Feb. 17, 2026
Corporate: 6B E St Waterline Replacement and 9th St Improvements Project - Mechanical stabilization
23 - Construction
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Mar. 05, 2026
Corporate: William Woollett Jr. Aquatic Center Expansion and Heritage Park Parking Lots - HVAC
23 - Construction
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Feb. 23, 2026
Corporate: New TK Modular Building and Administration Building Modernization & 2 Relocatable Replacement - Mechanical
23 - Construction
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Feb. 10, 2026
Corporate: Tulare Union High School Auditorium Improvements Project - Mechanical
23 - Construction
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Feb. 24, 2026
Bell Gardens High School Adams Hall HVAC Upgrade
23 - Construction
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Feb. 23, 2026
Boiler Plant Tuning, Testing and Preventative Maintenance Services for the Greater Los Angeles VA Healthcare System
23 - Construction
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Feb. 17, 2026
Clark Center HVAC Project
23 - Construction
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Mar. 02, 2026
Corporate: Secondary Treatment System Upgrades Project - Heating & Air Conditioning
23 - Construction
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Feb. 27, 2026
Heating and Air Conditioning Replacement Project
23 - Construction
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Feb. 26, 2026
Corporate: John Adams Allied Health Relocation - HVAC
23 - Construction
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Feb. 16, 2026
25-0010-CMT SR 41 Expressway
23 - Construction
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Feb. 13, 2026
Citywide Sewer Conditional Assessment Project
23 - Construction
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Feb. 12, 2026
TRAFFIC SIGNAL IMPROVEMENT PLAN
23 - Construction
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Mar. 12, 2026
Water Treatment Plant Administration
23 - Construction
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Mar. 03, 2026
Construction Management and Inspection Services
23 - Construction
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Feb. 23, 2026
Water Quality Technical Services
23 - Construction
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Mar. 02, 2026
GWP Water Advanced Meter Infrastructure (AMI) System Replacement
23 - Construction
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Feb. 10, 2026

Showing 651–700 of 15087 bids that are currently: Active.