| | SERVICE: STEAM VALVES REPLACEMENT AT NMNH | WELCH AND RUSHE, LLC | $13,100 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | J041MAINT/REPAIR/REBUILD OF EQUIPMENT- REFRIGERATION, AIR CONDITIONING, AND AIR CIRCULATING EQUIPMENT | Mar 6, 2025 | Mar 6, 2025 | Aug 1, 2025 |
| | EQUIPMENT REPAIR/REPLACEMENT FOR COLD STORAGE | WELCH AND RUSHE, LLC | $57,778 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | Z1NZMAINTENANCE OF OTHER UTILITIES | Sep 4, 2024 | Sep 4, 2024 | Dec 31, 2024 |
| | NMZ - SERVICES,NATURAL HISTORY BUILDING (COTR)B. SPENCER | WELCH AND RUSHE, LLC | $33,433 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | J041MAINT/REPAIR/REBUILD OF EQUIPMENT- REFRIGERATION, AIR CONDITIONING, AND AIR CIRCULATING EQUIPMENT | Apr 3, 2024 | Apr 3, 2024 | Dec 31, 2024 |
| | QUARTERLY MAINTENANCE CONTRACT OF EEPA COLD VAULT | WELCH AND RUSHE, LLC | $13,688 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | Z1JAMAINTENANCE OF MUSEUMS AND EXHIBITION BUILDINGS | Feb 26, 2024 | Feb 26, 2024 | Dec 31, 2024 |
| | WELSH AND RUSHE|SERVICE CHILLED WATER PUMP #3 | WELCH AND RUSHE, LLC | $21,341 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 221310Water Supply and Irrigation Systems | J043MAINT/REPAIR/REBUILD OF EQUIPMENT- PUMPS AND COMPRESSORS | Jan 31, 2024 | Jan 31, 2024 | Feb 23, 2024 |
| | NMZ - SERVICES,NATURAL HISTORY BUILDING (COTR)B. SPENCER | WELCH AND RUSHE, LLC | $14,214 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | J041MAINT/REPAIR/REBUILD OF EQUIPMENT- REFRIGERATION, AIR CONDITIONING, AND AIR CIRCULATING EQUIPMENT | Jan 29, 2024 | Jan 29, 2024 | Aug 31, 2024 |
| | NMZ - SERVICES,NATURAL HISTORY BUILDING (COTR)B. SPENCER | WELCH AND RUSHE, LLC | $44,815 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | J041MAINT/REPAIR/REBUILD OF EQUIPMENT- REFRIGERATION, AIR CONDITIONING, AND AIR CIRCULATING EQUIPMENT | Jan 26, 2024 | Jan 26, 2024 | Aug 31, 2024 |
| | NMZ - SERVICES,NATURAL HISTORY BUILDING (COTR)B. SPENCER | WELCH AND RUSHE, LLC | $21,902 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | J041MAINT/REPAIR/REBUILD OF EQUIPMENT- REFRIGERATION, AIR CONDITIONING, AND AIR CIRCULATING EQUIPMENT | Jan 25, 2024 | Jan 25, 2024 | Aug 31, 2024 |
| | NMZ - SERVICES,NATURAL HISTORY BUILDING (COTR)L. CHRISTIAN | WELCH AND RUSHE, LLC | $15,712 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | J041MAINT/REPAIR/REBUILD OF EQUIPMENT- REFRIGERATION, AIR CONDITIONING, AND AIR CIRCULATING EQUIPMENT | Jun 28, 2023 | Jun 28, 2023 | Sep 11, 2023 |
| | NMZ - SERVICES,NATURAL HISTORY BUILDING (COTR)L. CHRISTIAN | WELCH AND RUSHE, LLC | $9,985 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | J041MAINT/REPAIR/REBUILD OF EQUIPMENT- REFRIGERATION, AIR CONDITIONING, AND AIR CIRCULATING EQUIPMENT | Apr 10, 2023 | Apr 10, 2023 | Jul 28, 2023 |
| | REMOVE/REPLACE EXISTING DOMESTIC HOT WATER PUMP AT HIRSHHORN | WELCH AND RUSHE, LLC | $77,436 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | N044INSTALLATION OF EQUIPMENT- FURNACE, STEAM PLANT, AND DRYING EQUIPMENT; NUCLEAR REACTORS | Apr 3, 2023 | Apr 3, 2023 | Apr 28, 2023 |
| | NMZ - SERVICES,NATURAL HISTORY BUILDING (COTR)L. CHRISTIAN | WELCH AND RUSHE, LLC | $8,632 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | J041MAINT/REPAIR/REBUILD OF EQUIPMENT- REFRIGERATION, AIR CONDITIONING, AND AIR CIRCULATING EQUIPMENT | Mar 9, 2023 | Mar 9, 2023 | May 31, 2023 |
| | NMZ - SERVICES,NATURAL HISTORY BUILDING (COTR)L. CHRISTIAN | WELCH AND RUSHE, LLC | $4,525 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | J041MAINT/REPAIR/REBUILD OF EQUIPMENT- REFRIGERATION, AIR CONDITIONING, AND AIR CIRCULATING EQUIPMENT | Jan 11, 2023 | Jan 11, 2023 | Mar 30, 2023 |
| | QUARTERLY MAINTENANCE CONTRACT OF EEPA COLD VAULT | WELCH AND RUSHE, LLC | $3,545 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | Z1JAMAINTENANCE OF MUSEUMS AND EXHIBITION BUILDINGS | Dec 28, 2022 | Dec 28, 2022 | Dec 31, 2023 |
| | NMZ - SERVICES,NATURAL HISTORY BUILDING (COTR)L. CHRISTIAN | WELCH AND RUSHE, LLC | $39,928 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | J041MAINT/REPAIR/REBUILD OF EQUIPMENT- REFRIGERATION, AIR CONDITIONING, AND AIR CIRCULATING EQUIPMENT | Dec 22, 2022 | Dec 22, 2022 | Dec 30, 2022 |
| | NMZ - SERVICES,NATURAL HISTORY BUILDING (COTR)L. CHRISTIAN | WELCH AND RUSHE, LLC | $9,474 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | J041MAINT/REPAIR/REBUILD OF EQUIPMENT- REFRIGERATION, AIR CONDITIONING, AND AIR CIRCULATING EQUIPMENT | Nov 8, 2022 | Nov 8, 2022 | Feb 28, 2023 |
| | NMZ - SERVICES,NATURAL HISTORY BUILDING (COTR)L. CHRISTIAN | WELCH AND RUSHE, LLC | $8,474 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | J041MAINT/REPAIR/REBUILD OF EQUIPMENT- REFRIGERATION, AIR CONDITIONING, AND AIR CIRCULATING EQUIPMENT | Nov 8, 2022 | Nov 8, 2022 | Feb 28, 2023 |
| | EMERGENCY REPAIR OF THE GAS LINE AT NMAI-DC | WELCH AND RUSHE, LLC | $14,879 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | 4510PLUMBING FIXTURES AND ACCESSORIES | Oct 20, 2022 | Oct 20, 2022 | Nov 30, 2022 |
| | NMZ - SERVICES,NATURAL HISTORY BUILDING (COTR)L. CHRISTIAN | WELCH AND RUSHE, LLC | $100,212 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | J041MAINT/REPAIR/REBUILD OF EQUIPMENT- REFRIGERATION, AIR CONDITIONING, AND AIR CIRCULATING EQUIPMENT | Sep 22, 2022 | Sep 22, 2022 | Apr 28, 2023 |
| | REPLACE FAILING COMPRESSOR UNIT IN COLD STORAGE UNIT | WELCH AND RUSHE, LLC | $3,978 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | J041MAINT/REPAIR/REBUILD OF EQUIPMENT- REFRIGERATION, AIR CONDITIONING, AND AIR CIRCULATING EQUIPMENT | Jun 14, 2022 | Jun 14, 2022 | Jul 30, 2022 |
| | INSTALL SIX (6) DUCT PANEL DOORS AT NMNH | WELCH AND RUSHE, LLC | $9,462 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | 4150VORTEX TUBES AND OTHER RELATED COOLING TUBES | Aug 31, 2021 | Aug 31, 2021 | Sep 30, 2021 |
| | RESEAL COLD BOX BRACKET/FLOORING TO PREVENT WATER INTRUSION | WELCH AND RUSHE, LLC | $4,277 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | R499SUPPORT- PROFESSIONAL: OTHER | Aug 30, 2021 | Aug 30, 2021 | Aug 30, 2021 |
| | NMZ - SERVICES, NATURAL HISTORY BUILDING (COTR) SCOTT LYONS | WELCH AND RUSHE, LLC | $33,222 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | J096MAINT/REPAIR/REBUILD OF EQUIPMENT- ORES, MINERALS, AND THEIR PRIMARY PRODUCTS | Jun 24, 2021 | Jun 24, 2021 | May 11, 2022 |
| | NMZ - SERVICES, & SI CASTTLE (COTR) B. SOENCER | WELCH AND RUSHE, LLC | $4,733 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | J096MAINT/REPAIR/REBUILD OF EQUIPMENT- ORES, MINERALS, AND THEIR PRIMARY PRODUCTS | Jun 3, 2021 | Jun 3, 2021 | Jun 30, 2021 |
| | REPLACEMENT OF SHAFT/BEARINGS/SHEAVES ON HV-1 AT NMAI-DC | WELCH AND RUSHE, LLC | $6,767 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 238220Plumbing, Heating, and Air-Conditioning Contractors | 4120AIR CONDITIONING EQUIPMENT | May 27, 2021 | May 27, 2021 | Jun 30, 2021 |