Great Lakes St. Lawrence Seaway Development Corporation contracts
11 open notices from Great Lakes St. Lawrence Seaway Development Corporation right now. It posted 19 since Aug 7, 2026.
What Great Lakes St. Lawrence Seaway Development Corporation buys
Its notices by NAICS code, busiest first. Codes with steady volume link to their own page.
| Industry | Notices | Open now |
|---|---|---|
| Commercial construction NAICS 236220 | 6 | 6 |
| Ship Building and Repairing NAICS 336611 | 4 | 1 |
| Other Building Equipment Contractors NAICS 238290 | 3 | 1 |
| Iron and Steel Forging NAICS 332111 | 3 | 1 |
| Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing NAICS 334511 | 1 | 1 |
| Industrial equipment repair NAICS 811310 | 1 | 1 |
| Other Measuring and Controlling Device Manufacturing NAICS 334519 | 1 | 0 |
Latest notices from Great Lakes St. Lawrence Seaway Development Corporation
Open notices first, soonest deadline first. Recently closed ones follow.
| Opportunity | Place | Posted | Deadline | Source |
|---|---|---|---|---|
| AtoN Buoy Chains 6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP | Massena, NY 13662 | Sep 18, 2026 | Not listed | SAM.gov |
| Maintenance and Testing on Miter Gate Motor 6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP | Massena, NY 13662 | Sep 2, 2026 | Not listed | SAM.gov |
| Maintenance Base Overhead Door Replacement 6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP | Massena, NY 13662 | Sep 1, 2026 | Not listed | SAM.gov |
| Ice Buoy Lanterns 6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP | Massena, NY 13662 | Aug 14, 2026 | Not listed | SAM.gov |
| Construction of a New Administration Building and Maintenance Garage 6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP | Massena, NY 13662 | Sep 23, 2026 | Sep 25, 2026 | SAM.gov |
| Construction of a New Administration Building and Maintenance Garage 6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP | Massena, NY 13662 | Sep 21, 2026 | Sep 25, 2026 | SAM.gov |
| Dry Docking and Special Periodical Survey for M/V “Seaway Guardian” 6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP | Not listed | Sep 18, 2026 | Sep 25, 2026 | SAM.gov |
| Construction of a New Administration Building and Maintenance Garage 6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP | Massena, NY 13662 | Sep 17, 2026 | Sep 25, 2026 | SAM.gov |
| Construction of a New Administration Building and Maintenance Garage 6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP | Massena, NY 13662 | Sep 3, 2026 | Sep 25, 2026 | SAM.gov |
| Dry Docking and Special Periodical Survey for M/V “Seaway Guardian” 6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP | Not listed | Sep 3, 2026 | Sep 18, 2026Closed | SAM.gov |
| AtoN Buoy Chains 6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP | Massena, NY 13662 | Aug 31, 2026 | Sep 1, 2026Closed | SAM.gov |
| Dry Docking and Special Periodical Survey for M/V “Seaway Guardian” 6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP | Not listed | Aug 28, 2026 | Sep 8, 2026Closed | SAM.gov |
| Construction of a New Administration Building and Maintenance Garage 6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP | Massena, NY 13662 | Aug 28, 2026 | Sep 25, 2026 | SAM.gov |
| Construction of a New Administration Building and Maintenance Garage 6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP | Massena, NY 13662 | Aug 27, 2026 | Sep 25, 2026 | SAM.gov |
| Maintenance Base Overhead Door Replacement 6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP | Massena, NY 13662 | Aug 25, 2026 | Aug 26, 2026Closed | SAM.gov |
| AtoN Buoy Chains 6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP | Massena, NY 13662 | Aug 19, 2026 | Sep 1, 2026Closed | SAM.gov |
| Maintenance Base Overhead Door Replacement 6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP | Massena, NY 13662 | Aug 14, 2026 | Aug 26, 2026Closed | SAM.gov |
| Dry Docking and Special Periodical Survey for M/V “Seaway Guardian” 6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP | Not listed | Aug 11, 2026 | Sep 8, 2026Closed | SAM.gov |
| Meteorological Weather Stations and Maintenance Support 6923G5 GREAT LAKES ST LAWRENCE SWY DEV CORP | Massena, NY 13662 | Aug 10, 2026 | Aug 24, 2026Closed | SAM.gov |
Other Department of Transportation buyers
Top contractors at Great Lakes St. Lawrence Seaway Development Corporation
Contractors ranked by value obligated on Great Lakes St. Lawrence Seaway Development Corporation awards.
| Contractor | Awards | Obligated |
|---|---|---|
| Con Tech Building Systems, Inc. UEI GD6AEMR6MHK3 | 1 | $8.7M |
| Kubricky Construction Corp UEI DL36KLS1F8S5 | 1 | $7.7M |
| Patterson Stevens Inc UEI H9ZRLUCPL5A7 | 2 | $6M |
| Amerifield LLC UEI W9WQRHQM5G85 | 1 | $2.7M |
| PTG International, Inc. UEI EHVWQC5LJRV9 | 1 | $2M |
| Ums Metal Fabricators Inc UEI MDFNYTA19J33 | 1 | $1.8M |
| Perras Excavating, Inc. UEI LGMAFL7B8AV9 | 1 | $1.6M |
| WSP USA Inc UEI Y1WEBU3PGA15 | 1 | $1.4M |
| S1S Bravo, LLC UEI ZXMSAGL3NLA7 | 1 | $1.1M |
| Marcus International LLC UEI W1DQBF9LJV15 | 1 | $809K |
From federal award records of $1M or more since October 2023. More in the contractor directory.
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Questions people ask
How do I find Great Lakes St. Lawrence Seaway Development Corporation contract opportunities?
Great Lakes St. Lawrence Seaway Development Corporation posts its solicitations on SAM.gov, the federal source of record. This page lists them as they post, open ones first, with a link to each official notice.
What does Great Lakes St. Lawrence Seaway Development Corporation buy most?
By notice count since Aug 7, 2026: Commercial construction, Ship Building and Repairing, Other Building Equipment Contractors.
How do I hear when Great Lakes St. Lawrence Seaway Development Corporation posts something I can bid on?
Captivaq watches every new notice against your company profile and alerts you when one fits, then scores it and drafts the response.
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.