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Great Lakes St. Lawrence Seaway Development Corporation commercial construction contracts

Captivaq tracked 6 commercial construction notices from Great Lakes St. Lawrence Seaway Development Corporation since Aug 7, 2026. 6 are open now.

NAICS 236220: Commercial and Institutional Building ConstructionPart of the Department of TransportationUpdated Sep 24, 2026

Commercial construction notices from Great Lakes St. Lawrence Seaway Development Corporation

Open notices first, soonest deadline first. Recently closed ones follow. See every agency on the commercial construction page.

OpportunityPlacePostedDeadlineSource
Construction of a New Administration Building and Maintenance Garage

6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP

Massena, NY 13662Sep 23, 2026Sep 25, 2026SAM.gov
Construction of a New Administration Building and Maintenance Garage

6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP

Massena, NY 13662Sep 21, 2026Sep 25, 2026SAM.gov
Construction of a New Administration Building and Maintenance Garage

6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP

Massena, NY 13662Sep 17, 2026Sep 25, 2026SAM.gov
Construction of a New Administration Building and Maintenance Garage

6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP

Massena, NY 13662Sep 3, 2026Sep 25, 2026SAM.gov
Construction of a New Administration Building and Maintenance Garage

6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP

Massena, NY 13662Aug 28, 2026Sep 25, 2026SAM.gov
Construction of a New Administration Building and Maintenance Garage

6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP

Massena, NY 13662Aug 27, 2026Sep 25, 2026SAM.gov

What else Great Lakes St. Lawrence Seaway Development Corporation buys

IndustryNoticesOpen now
Ship Building and Repairing

NAICS 336611

41
Other Building Equipment Contractors

NAICS 238290

31
Iron and Steel Forging

NAICS 332111

31
Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing

NAICS 334511

11
Other Measuring and Controlling Device Manufacturing

NAICS 334519

10
Industrial equipment repair

NAICS 811310

11

Other agencies buying commercial construction

AgencyNoticesOpen now
Department of the Army

Department of Defense

478168
Department of Veterans Affairs326143
Department of the Navy

Department of Defense

25080
Department of the Air Force

Department of Defense

17751
GSA Public Buildings Service

General Services Administration

7628
Forest Service

Department of Agriculture

5726
Department of State493
National Park Service

Department of the Interior

4623
U.S. Fish and Wildlife Service

Department of the Interior

3723
DOL Office of the Assistant Secretary for Administration and Management

Department of Labor

2619

Who wins commercial construction work at Great Lakes St. Lawrence Seaway Development Corporation

Contractors ranked by value obligated on Great Lakes St. Lawrence Seaway Development Corporation awards under NAICS 236220.

ContractorAwardsObligated
Con Tech Building Systems, Inc.

UEI GD6AEMR6MHK3

1$8.7M

From federal award records of $1M or more since October 2023. More in the contractor directory.

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Captivaq is an independent service from Logesta Labs LLC and is not affiliated with or endorsed by the U.S. government or SAM.gov. The notice on the official source portal is the record that governs; confirm deadlines and amendments there.