The Specialty Trade Contractors subsector comprises establishments whose primary activity is performing specific activities (e.g., pouring concrete, site preparation, plumbing, painting, and electrical work) involved in building construction or other activities that are similar for all types of construction, but that are not responsible for the entire project. The work performed may include new work, additions, alterations, maintenance, and repairs. The production work performed by establishments in this subsector is usually subcontracted from establishments of the general contractor type or for-sale builders, but especially in remodeling and repair construction, work also may be done directly for the owner of the property. Specialty trade contractors usually perform most of their work at the construction site, although they may have shops where they perform prefabrication and other work. Establishments primarily engaged in preparing sites for new construction are also included in this subsector. There are substantial differences in types of equipment, work force skills, and other inputs required by specialty trade contractors. Establishments in this subsector are classified based on the underlying production function for the specialty trade in which they specialize. Throughout the Specialty Trade Contractors subsector, establishments commonly provide both the parts and labor required to complete work. For example, electrical contractors supply the current-carrying and noncurrent-carrying wiring devices that are required to install a circuit. Plumbing, heating, and air-conditioning contractors also supply the parts required to complete a contract. Establishments that specialize in activities primarily related to heavy and civil engineering construction that are not normally performed on buildings, such as the painting of lines on highways are classified in Subsector 237, Heavy and Civil Engineering Construction. Establishments that are primarily engaged in selling construction materials are classified in Sector 42, Wholesale Trade, or Sector 44-45, Retail Trade, based on the characteristics of the selling unit.
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| Maryland - US | Agency | Bid Type | Due Date | As PDF |
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Exterior Foundation Waterproofing
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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Mechanical and Plumbing Services
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 18, 2026 |
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23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | May. 29, 2026 |
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23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Jun. 19, 2026 |
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XB1705182 TMDL SWM Grass Swales
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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Cambria Park Improvements
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 18, 2026 |
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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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ARFF Building Demolition
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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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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Water Treatment Plant Overhead Door 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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Manway Door Replacements
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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OVERHEAD DOOR SYSTEMS & SECURITY GATE SYSTEMS, INSTALLATION, MAINTENANCE, REPAIR AND REPLACEMENT
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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MURPHY FINE ARTS DOOR REPLACEMENT AND SECURITY UPGRADES
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 08, 2026 |
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23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Jun. 04, 2026 |
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23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 22, 2026 |
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New Direct Deisel Battery Electric Locomotives Consortium
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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Lighting Replacement
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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Dining Hall 13kV Switch Replacement
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 16, 2026 |
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WWTP Electrical Service Improvements
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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Generator Replacement
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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Air DC\/MSC EV installation Project
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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Fair Hill NRMA Site Electrical Improvements (IQC)
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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Transfer Switches Replacement
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 18, 2026 |
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Carter M Hickman DC\/MSC Elevator Service
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 29, 2026 |
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Elevator Service and Maintenance
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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New Power Operated Rolling Gate and Adjacent Fence Sections
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 09, 2026 |
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Fence\/Access Gate Realignment
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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Fencing
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 05, 2026 |
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Mechanical Fire Gates
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 05, 2026 |
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Perimeter Security Fence Replacement
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 18, 2026 |
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Barrister Court - Painting of Common Areas and 16 Apartments
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 26, 2026 |
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Water Storage Tanks Painting and Repairs
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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23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 30, 2026 |
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BUILDING SYSTEM GUTTERING & ROOF DRAIN SYSTEMS INSPECTION, CLEANING & MAINTENANCE SERVICES
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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ROOF SYSTEMS INSTALLATION, REPAIR AND MAINTENANCE
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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Replace Roofs on Service Center
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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Campus Wayfinding Message Updates
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 12, 2026 |
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| Massachusetts - US | Agency | Bid Type | Due Date | As PDF |
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Back Station Ventilation, Power and Concourse Improvements
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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Maintenance - HVAC Services
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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On-Call HVAC Maintenance & Repair
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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Remove Existing Galv. Metal Exhaust
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 Controls Service
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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AIR TRAFFIC CONTROL TOWER PHASE 2A - Heating, Ventilation and Air Conditioning
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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KITCHEN EXHAUST & MUA SYSTEM 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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South Station Bus Terminal Cooling Tower Replacement
23 - Construction (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 17, 2026 |
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Jail - 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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New J.W. Killam Elementary School - Heating \/ Ventilating \/ Air-Conditioning (HVAC)
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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HVAC Repair and Service
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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UNIT VENTILATOR & AHU 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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IT Room HVAC 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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