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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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Showing 3401–3450 of 7047 bids that are currently: Active.

Denotes bidding opportunities that have been amended

Maryland - US Due Date
Exterior Foundation Waterproofing
23 - Construction
(to see the full NAICS category code login  or  upgrade)
May. 26, 2026
Mechanical and Plumbing Services
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jun. 18, 2026
Sources Sought (ISBEE and Small Business Concerns) - Preventive Plumbing Maintenance Services
23 - Construction
(to see the full NAICS category code login  or  upgrade)
May. 29, 2026
Replacement of Cooling Tower Base
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jun. 19, 2026
XB1705182 TMDL SWM Grass Swales
23 - Construction
(to see the full NAICS category code login  or  upgrade)
May. 28, 2026
Cambria Park Improvements
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jun. 18, 2026
Former Dormitory Demolition
23 - Construction
(to see the full NAICS category code login  or  upgrade)
Jun. 03, 2026
ARFF Building Demolition
23 - Construction
(to see the full NAICS category code login  or  upgrade)
May. 28, 2026
Dance Flooring and Installation
23 - Construction
(to see the full NAICS category code login  or  upgrade)
May. 28, 2026
Water Treatment Plant Overhead Door Replacement
23 - Construction
(to see the full NAICS category code login  or  upgrade)
May. 28, 2026
Manway Door Replacements
23 - Construction
(to see the full NAICS category code login  or  upgrade)
May. 27, 2026
OVERHEAD DOOR SYSTEMS & SECURITY GATE SYSTEMS, INSTALLATION, MAINTENANCE, REPAIR AND REPLACEMENT
23 - Construction
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May. 27, 2026
MURPHY FINE ARTS DOOR REPLACEMENT AND SECURITY UPGRADES
23 - Construction
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Jul. 08, 2026
Door and Lock Installation
23 - Construction
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Jun. 04, 2026
Airfield Lighting System Electrical Repairs and Maintenance
23 - Construction
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Nov. 22, 2026
New Direct Deisel Battery Electric Locomotives Consortium
23 - Construction
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Jun. 10, 2026
Lighting Replacement
23 - Construction
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Jun. 03, 2026
Dining Hall 13kV Switch Replacement
23 - Construction
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Jun. 16, 2026
WWTP Electrical Service Improvements
23 - Construction
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Jun. 11, 2026
Generator Replacement
23 - Construction
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Jun. 04, 2026
Air DC\/MSC EV installation Project
23 - Construction
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May. 28, 2026
Fair Hill NRMA Site Electrical Improvements (IQC)
23 - Construction
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Jun. 04, 2026
Transfer Switches Replacement
23 - Construction
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Jun. 18, 2026
Carter M Hickman DC\/MSC Elevator Service
23 - Construction
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May. 29, 2026
Elevator Service and Maintenance
23 - Construction
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May. 26, 2026
New Power Operated Rolling Gate and Adjacent Fence Sections
23 - Construction
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Jun. 09, 2026
Fence\/Access Gate Realignment
23 - Construction
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May. 28, 2026
Fencing
23 - Construction
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Jun. 05, 2026
Mechanical Fire Gates
23 - Construction
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Jun. 05, 2026
Perimeter Security Fence Replacement
23 - Construction
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Jun. 18, 2026
Barrister Court - Painting of Common Areas and 16 Apartments
23 - Construction
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Dec. 26, 2026
Water Storage Tanks Painting and Repairs
23 - Construction
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Jun. 02, 2026
Elementary School Comprehensive Roof Replacement
23 - Construction
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Jun. 30, 2026
BUILDING SYSTEM GUTTERING & ROOF DRAIN SYSTEMS INSPECTION, CLEANING & MAINTENANCE SERVICES
23 - Construction
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May. 27, 2026
ROOF SYSTEMS INSTALLATION, REPAIR AND MAINTENANCE
23 - Construction
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May. 28, 2026
Replace Roofs on Service Center
23 - Construction
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May. 28, 2026
Campus Wayfinding Message Updates
23 - Construction
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Jun. 12, 2026
 
 
Massachusetts - US Due Date
Back Station Ventilation, Power and Concourse Improvements
23 - Construction
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Jun. 11, 2026
Maintenance - HVAC Services
23 - Construction
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Jun. 10, 2026
On-Call HVAC Maintenance & Repair
23 - Construction
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Jun. 04, 2026
Remove Existing Galv. Metal Exhaust
23 - Construction
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May. 27, 2026
HVAC Controls Service
23 - Construction
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May. 28, 2026
AIR TRAFFIC CONTROL TOWER PHASE 2A - Heating, Ventilation and Air Conditioning
23 - Construction
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Jun. 11, 2026
KITCHEN EXHAUST & MUA SYSTEM REPLACEMENT
23 - Construction
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May. 28, 2026
South Station Bus Terminal Cooling Tower Replacement
23 - Construction
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Jun. 17, 2026
Jail - HVAC
23 - Construction
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Jun. 08, 2026
New J.W. Killam Elementary School - Heating \/ Ventilating \/ Air-Conditioning (HVAC)
23 - Construction
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Jun. 04, 2026
HVAC Repair and Service
23 - Construction
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Jun. 10, 2026
UNIT VENTILATOR & AHU UPGRADES
23 - Construction
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Jun. 04, 2026
IT Room HVAC Upgrades
23 - Construction
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Jun. 04, 2026

Showing 3401–3450 of 7047 bids that are currently: Active.