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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WWTP Improvements
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 03, 2026 |
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Corporate: LAUSD - Palisades Charter High School - HVAC CONTROLS WET AND DRY SIDE
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 06, 2026 |
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Corporate: Palisades Charter High School Campus Reconstruction, HVAC Replacement, Fencing & Secure Entry System - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 06, 2026 |
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Corporate: SECONDARY REACTORS REHABILITATION, Phase 2 - mechanical
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 18, 2026 |
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Corporate: LAUSD Marquez Fire Recovery - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 17, 2026 |
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Corporate: Machado WWTF Upgrade and Expansion Project - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 20, 2026 |
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Corporate: Inglewood HS New Buildings 5 & 6 - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 19, 2026 |
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Corporate: Sewer Collection System and Wastewater Treatment Plant Improvements - Heating, Ventilating & Air Conditioning
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 19, 2026 |
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Corporate: WALNUT CREEK WATER TREATMENT PLANT FILTERS IMPROVEMENTS - mechanical
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 10, 2026 |
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Corporate: Water Treatment Plant Effluent Meters, Large Customer Meters Improvements, and Circle Regulator Replacement - HVAC\/ MECHANICAL
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 18, 2026 |
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Corporate: Student Housing - hvac
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 16, 2026 |
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Corporate: SKUSD Dance room & weight room modernizations - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 03, 2026 |
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HVAC UNITS AT WATER RECLAMATION FACILITY
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 05, 2026 |
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Heating, Ventilating and Air Conditioning (HVAC) Maintenance Services
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 08, 2026 |
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Mechanical Maintenance Services
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 13, 2026 |
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Corporate: City of Redlands Wastewater Treatment Plant Upgrades Project, Phase 2 - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 12, 2026 |
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Corporate: Digester 9 Expansion at Visalia Water Reclamation Facility - HVAC\/MECHANICAL
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 19, 2026 |
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Corporate: Bubbling Wells ES - New Construction and Modernization - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 19, 2026 |
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ELEMENTARY SCHOOL MPR HVAC REPLACEMENT
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 18, 2026 |
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HVAC Maintenance at City Facilities
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 10, 2026 |
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Police Department Supplemental HVAC Project
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 10, 2026 |
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Corporate: Fire Station 63 SSF - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 12, 2026 |
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Corporate: Purified Water Replenishment SJV Advanced Water Purification Facility - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 19, 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 | Nov. 16, 2026 |
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Corporate: Sewer Collection System & WWTP Improvements - HVAC\/MECHANICAL
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 19, 2026 |
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Corporate: Purified Water Replenishment - San Jacinto Valley Advanced Water Purification Facility - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 19, 2026 |
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Corporate: Purified Water Replenishment - San Jacinto Valley Advanced Water Purification Facility - MECHANICAL EVAPORATORS
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 19, 2026 |
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Corporate: Marquez Charter Elementary - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 01, 2026 |
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Corporate: Marquez Charter Elementary - Controls
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 01, 2026 |
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Corporate: Marquez Charter Elementary - Kitchen Hood & Ventilation
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 01, 2026 |
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Corporate: Fisher Middle School Upgrades - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 12, 2026 |
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Cogeneration Plant New Electric Chiller
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 05, 2026 |
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Corporate: MPC- ADPE HVAC Modifications & Controls - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 05, 2026 |
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Corporate: MPC- ADPE HVAC Modifications & Controls - Mechanical
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 05, 2026 |
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Corporate: MWWTP Secondary Reactors Rehabilitation, Phase 2 - Mechanical piping, valves and supports
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 18, 2026 |
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Corporate: City of Redlands Wastewater Treatment Plant Upgrades - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 12, 2026 |
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Corporate: Madera Outdoor Athletic Facilities Increment I & II - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 18, 2026 |
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Corporate: COLLEGE PARK HIGH SCHOOL BOYS AND GIRLS LOCKER ROOM BUILDINGS MODERNIZATION - Mechanical
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 05, 2026 |
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Corporate: City of Sunnyvale Cleanwater Admin Building & Perimeter Wall - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 10, 2026 |
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Districtwide HVAC Projects
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 18, 2026 |
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Office of Education HVAC and Electrical Project
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 19, 2026 |
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Corporate: COLLEGE PARK HIGH SCHOOL BOYS AND GIRLS LOCKER ROOM BUILDINGS - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 05, 2026 |
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Corporate: COLLEGE PARK HIGH SCHOOL BOYS AND GIRLS LOCKER ROOM BUILDINGS - Louvers and Vents
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 05, 2026 |
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Corporate: WATER TREATMENT PLANT EFFLUENT METERS, LARGE CUSTOMER METERS IMPROVEMENTS, AND CIRCLE REGULATOR REPLACEMENT - Mechanical
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 25, 2026 |
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Corporate: College Park High School Boys and Girls Locker Room Buildings Modernization - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 05, 2026 |
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Corporate: Southwestern College Student Union Renovation - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 17, 2026 |
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Corporate: Site Modifications at the Palmyrita WTP for PFAS Removal - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 21, 2026 |
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Corporate: Purified Water Replenishment San Jacinto Valley - HVAC
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 14, 2026 |
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Building Management System (BMS) Replacement
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 23, 2026 |
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Elementary School New HVAC Installation
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 01, 2026 |
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