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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 7751–7800 of 15356 bids that are currently: Active.
Denotes bidding opportunities that have been amended
| Maryland - US | Agency | Bid Type | Due Date | As PDF |
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Traffic Calming Measures and Intersection 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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Chesapeake and Delaware (C and D) Canal Building Replacement Project.
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | Federal Prebids | Nov. 25, 2026 |
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On-Call Maintenance, Repair and Upgrade of Utilities Infrastructure
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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Potomac WFP Water Quality\/PFAS Pilot Project
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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Penn Manor Large Valve Vault 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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Stormwater Repairs
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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Force Main Replacement Phase 1 Project
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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Repair Port Deposit I&I
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 10, 2026 |
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Piezometer Automation
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 24, 2026 |
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Long Quarter Interceptor Rehabilitation
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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Utility System Repair and Replacement Services
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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Fairlee WTP Well #3 Redevelopment
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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Mystic Harbour WWTP Biosolids Upgrade
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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Underground Mechanical Utilities Maintenance Contract
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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Wastewater Treatment Plant Sludge Pad Replacement
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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| Massachusetts - US | Agency | Bid Type | Due Date | As PDF |
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Tradesperson Installation, Repair and Maintenance Services - Boilers
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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Tradesperson Installation, Repair and Maintenance Services - HVAC\/Sheet Metal
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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Mechanical & Envelope Upgrades at Franklin Field - 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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Town Offices, Phase 3 - 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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Dry Cooler and Telecom Cooling
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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Town Hall Building Renovations Interior and Exterior - 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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DUCTLESS MINI-SPLIT PREVENTATIVE MAINTENANCE SERVICE
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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ES BLDG 1624 RM 203 VTC & A\/V Upgrade - FY27 RFQ
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Dec. 04, 2026 |
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Planroom: Burlington Somerville, MA Renovation - ductwork
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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Planroom: Burlington Somerville, MA Renovation - HVAC system
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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Planroom: Burlington Somerville, MA Renovation - mechanical
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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Library Boiler Replacement
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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Memorial Elementary School Building Updates - Heating \/ Ventilating \/ Air-Conditioning (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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Planroom: Memorial Elementary School Building Updates - Heating \/ Ventilating \/ Air-Conditioning (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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Preventative Maintenance Services - Refrigeration Equipment
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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Anatomy\/Animal Medicine AHU Replacement
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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HVAC Maintenance & Repairs Service
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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HEATING UNIT REPAIR WORK
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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HVAC Upgrades Fire Station
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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Mechanical Room Geothermal HVAC Installation
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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HVAC Work Bay Exhaust System Maintenance
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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Boiler Replacement
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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Brooks School Walk-In Fridge\/Freezer Compressor\/Evaporator Replacement
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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Routine and Emergency HVAC Maintenance Services
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 26, 2026 |
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RESIDENTS HALL DAMPER REPLACEMENT PHASE I
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 10, 2026 |
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McCormack AHU Upgrades Phase 1 & 2
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 02, 2026 |
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Paint Spray Booth Replacement - 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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HVAC Preventative Maintenance and Repairs
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 02, 2026 |
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ON-CALL HVAC PREVENTIVE MAINTENANCE & REPAIR
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 24, 2026 |
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HVAC Controls Upgrade
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 24, 2026 |
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Renovation\/Stabilization of Lynn Courthouse - 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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Shea Theater RTU Replacement
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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HVAC Classroom Renovation
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 02, 2026 |
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DX AHU Replacement
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 02, 2026 |
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On-Call AC-HVAC Services for Multiple Locations
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 30, 2026 |
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