| | LIQUID NITROGEN FOR MTE K2A SYSTEM | UNITED STATES WELDING, INC. | $38,031 | BUREAU OF RECLAMATION | BUREAU OF RECLAMATION | — | 325120Industrial Gas Manufacturing | 6830GASES: COMPRESSED AND LIQUEFIED | Apr 27, 2026 | May 1, 2026 | Apr 30, 2027 |
| | GASES AND SUPPLIES TO FORT COLLINS, CO | UNITED STATES WELDING, INC. | $111,116 | CENTERS FOR DISEASE CONTROL AND PREVENTION | CENTERS FOR DISEASE CONTROL AND PREVENTION | — | 325120Industrial Gas Manufacturing | 3655GAS GENERATING AND DISPENSING SYSTEMS, FIXED OR MOBILE | Nov 21, 2025 | Nov 21, 2025 | Nov 14, 2026 |
| | LIQUID OXYGEN FARM TANK REPAIRS | UNITED STATES WELDING, INC. | $21,797 | VETERANS AFFAIRS, DEPARTMENT OF | VETERANS AFFAIRS, DEPARTMENT OF | — | 811310Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance | J065MAINT/REPAIR/REBUILD OF EQUIPMENT- MEDICAL, DENTAL, AND VETERINARY EQUIPMENT AND SUPPLIES | Sep 24, 2025 | Aug 29, 2025 | Sep 28, 2025 |
| | CO-HOTCHKISS NFH-VALVE REPAIR OXYGEN | UNITED STATES WELDING, INC. | $12,132 | US FISH AND WILDLIFE SERVICE | US FISH AND WILDLIFE SERVICE | — | 325120Industrial Gas Manufacturing | Z2PZREPAIR OR ALTERATION OF OTHER NON-BUILDING FACILITIES | Nov 8, 2024 | Nov 8, 2024 | Nov 15, 2024 |
| | BULK LIQUID NITROGEN | UNITED STATES WELDING, INC. | $435,840 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 325120Industrial Gas Manufacturing | 6830GASES: COMPRESSED AND LIQUEFIED | Apr 15, 2024 | Apr 16, 2024 | Apr 16, 2029 |
| | WY-COMPRESSED GAS CYLINDER PROCUREMENT | UNITED STATES WELDING, INC. | $80,543 | BUREAU OF RECLAMATION | BUREAU OF RECLAMATION | — | 325120Industrial Gas Manufacturing | 8120COMMERCIAL AND INDUSTRIAL GAS CYLINDERS | Apr 8, 2024 | Apr 8, 2024 | Feb 26, 2025 |
| | SUPPLY APPROXIMATELY 100,000 CCF OF TYPE II CLASS B 99.9998% PURE NITROGEN BY VOLUME. | UNITED STATES WELDING, INC. | $365,100 | AGRICULTURAL RESEARCH SERVICE | AGRICULTURAL RESEARCH SERVICE | — | 325120Industrial Gas Manufacturing | 6830GASES: COMPRESSED AND LIQUEFIED | Mar 5, 2024 | Mar 5, 2024 | Mar 4, 2029 |
| | TYPE II CLASS B 99.9998% PURE NITROGEN | UNITED STATES WELDING, INC. | $22,414 | AGRICULTURAL RESEARCH SERVICE | AGRICULTURAL RESEARCH SERVICE | — | 325120Industrial Gas Manufacturing | 6830GASES: COMPRESSED AND LIQUEFIED | Sep 27, 2023 | Sep 27, 2023 | Dec 31, 2023 |
| | LIQUID NITROGEN SYSTEM REPAIRS | UNITED STATES WELDING, INC. | $8,639 | AGRICULTURAL RESEARCH SERVICE | AGRICULTURAL RESEARCH SERVICE | — | 325120Industrial Gas Manufacturing | J041MAINT/REPAIR/REBUILD OF EQUIPMENT- REFRIGERATION, AIR CONDITIONING, AND AIR CIRCULATING EQUIPMENT | Sep 3, 2023 | Sep 3, 2023 | Dec 31, 2023 |
| | CO-FWS HOTCHKISS NFH-BULK OXYGEN | UNITED STATES WELDING, INC. | $203,859 | US FISH AND WILDLIFE SERVICE | US FISH AND WILDLIFE SERVICE | — | 325120Industrial Gas Manufacturing | 6830GASES: COMPRESSED AND LIQUEFIED | Feb 18, 2022 | Feb 18, 2022 | Jun 1, 2027 |
| | BULK LIQUID NITROGEN, DELIVERED. | UNITED STATES WELDING, INC. | $189,384 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 325120Industrial Gas Manufacturing | 8120COMMERCIAL AND INDUSTRIAL GAS CYLINDERS | Sep 5, 2019 | Sep 5, 2019 | Mar 31, 2024 |
| | BULK LN2 TANK FOR NLGRP | UNITED STATES WELDING, INC. | $238,328 | AGRICULTURAL RESEARCH SERVICE | AGRICULTURAL RESEARCH SERVICE | — | 332420Metal Tank (Heavy Gauge) Manufacturing | 5430STORAGE TANKS | Sep 13, 2018 | Sep 13, 2018 | May 28, 2020 |
| | BUILDING 8027 MATERIAL TEST FACILITY NITROGEN BULK TANK PAD AND NITROGEN LINE INSTALLATION | UNITED STATES WELDING, INC. | $84,759 | OFFICE OF THE ASSISTANT SECRETARY FOR ADMINISTRATION (ASA) | DEPT OF THE ARMY | — | 332420Metal Tank (Heavy Gauge) Manufacturing | 5430STORAGE TANKS | May 17, 2018 | May 17, 2018 | Dec 30, 2018 |
| | CANY - WELDER IGF::OT::IGF | UNITED STATES WELDING, INC. | $4,533 | NATIONAL PARK SERVICE | NATIONAL PARK SERVICE | — | 333992Welding and Soldering Equipment Manufacturing | 3431ELECTRIC ARC WELDING EQUIPMENT | Jan 24, 2018 | Jan 24, 2018 | Apr 18, 2018 |
| | ENG. ROAD MTCE WELDER | UNITED STATES WELDING, INC. | $7,797 | FOREST SERVICE | FOREST SERVICE | — | 333992Welding and Soldering Equipment Manufacturing | 5130HAND TOOLS, POWER DRIVEN | Apr 20, 2017 | Apr 20, 2017 | May 31, 2017 |
| | FP-GAS DRIVEN WELDER FOR WAREYARD IGF::OT::IGF | UNITED STATES WELDING, INC. | $5,813 | BUREAU OF LAND MANAGEMENT | BUREAU OF LAND MANAGEMENT | — | 325120Industrial Gas Manufacturing | 3438MISCELLANEOUS WELDING EQUIPMENT | Feb 9, 2016 | Feb 9, 2016 | Feb 29, 2016 |
| | LN2 GAS - BULK | UNITED STATES WELDING, INC. | $65,469 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 325120Industrial Gas Manufacturing | 8120COMMERCIAL AND INDUSTRIAL GAS CYLINDERS | Jun 3, 2015 | Jun 2, 2015 | Sep 20, 2019 |
| | US WELD - GASSES&MATERIALS FOR STUDENT CAREER TECHNIAL TRAINING | UNITED STATES WELDING, INC. | $1,686 | FOREST SERVICE | FOREST SERVICE | — | 423840Industrial Supplies Merchant Wholesalers | 5340HARDWARE, COMMERCIAL | Oct 22, 2014 | Oct 22, 2014 | Sep 30, 2015 |
| | US WELD - MATERIALS/SUPPLIES FOR CENTER CAREER TECHNICAL TRAINING PROJECTS OCT 1, 2014 - MAR 31, 2015 | UNITED STATES WELDING, INC. | $1,599 | FOREST SERVICE | FOREST SERVICE | — | 423840Industrial Supplies Merchant Wholesalers | 3439MISCELLANEOUS WELDING, SOLDERING, AND BRAZING SUPPLIES AND ACCESSORIES | Sep 24, 2014 | Sep 24, 2014 | Mar 31, 2015 |
| | SUPPLY AND DELIVERY OF THE FOLLOWING GASES: HYDROGEN, OXYGEN, HELIUM, LIQUID NITROGEN AND SYN AIR FOR THE BOULDER LABS. | UNITED STATES WELDING, INC. | $16,735 | BUREAU OF ECONOMIC ANALYSIS | NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION | — | 325120Industrial Gas Manufacturing | 6830GASES: COMPRESSED AND LIQUEFIED | Sep 23, 2013 | Sep 23, 2013 | Sep 30, 2014 |
| | CYLINDER, NITROGEN K-SIZE USP (NF) | UNITED STATES WELDING, INC. | $8,324 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 423450Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers | 6515MEDICAL AND SURGICAL INSTRUMENTS, EQUIPMENT, AND SUPPLIES | Mar 22, 2013 | Mar 21, 2013 | Mar 27, 2013 |
| | WELDING EQUIPMENT | UNITED STATES WELDING, INC. | $12,504 | BUREAU OF RECLAMATION | BUREAU OF RECLAMATION | — | 424690Other Chemical and Allied Products Merchant Wholesalers | 3431ELECTRIC ARC WELDING EQUIPMENT | Jul 10, 2012 | Jul 10, 2012 | Jul 31, 2012 |
| | US WELD/ WELDING SUPPLIES FOR TAR TRAINING / ROD,WIRE, HEADGEAR ETC./ DUNS 078353927/ TIN 840383383/ NAICS 424690/ PSC W068 | UNITED STATES WELDING, INC. | $3,950 | FOREST SERVICE | FOREST SERVICE | — | 424690Other Chemical and Allied Products Merchant Wholesalers | W068LEASE OR RENTAL OF EQUIPMENT- CHEMICALS AND CHEMICAL PRODUCTS | May 17, 2012 | May 17, 2012 | Jun 30, 2012 |
| | US WELD/ SUPPLIES FOR WELDING TRADE/4 MONTH GAS SUPPLE/STUDENT TRADE GLOVES/ DUNS 078353927/TIN 840383383/ PSC 3438/ NAICS 424690 | UNITED STATES WELDING, INC. | $4,522 | FOREST SERVICE | FOREST SERVICE | — | 424690Other Chemical and Allied Products Merchant Wholesalers | 3438MISCELLANEOUS WELDING EQUIPMENT | May 11, 2012 | May 11, 2012 | Jun 30, 2012 |
| | US WELDING INC.,/ WELDING EQUIPMENT FOR STUDENT TRAINING/ MILLERMATIC -252 #90732-1/LINCOLN POWER MIG 255XT #K270-1/LINCOLN POWER MIG 350MP #K2403-1/LINCOLN RANGER 255 #K2857-1/DUNS 078353927 | UNITED STATES WELDING, INC. | $13,298 | FOREST SERVICE | FOREST SERVICE | — | 424690Other Chemical and Allied Products Merchant Wholesalers | 3438MISCELLANEOUS WELDING EQUIPMENT | Jun 17, 2011 | Jun 17, 2011 | Jul 30, 2011 |