Agencies › Department of Energy › Calvin Callahan Calvin Callahan Procurement contact · MSTS DOE CONTRACTOR · Department of Energy
Email callahcd@nv.doe.gov Phone 5097936963 On SAM.gov notices 14 since Dec 2024 — 14 in the last 24 months Last listed Apr 2026
What they buy NAICS Industry Notices 541380 Testing Laboratories And Services 5 541360 Geophysical Surveying And Mapping Services 4 541990 All Other Professional, Scientific, And Technical Services 3 237110 Water And Sewer Line And Related Structures Construction 1 238910 Site Preparation Contractors 1
PSC Product or service Notices 1195 MISCELLANEOUS NUCLEAR ORDNANCE 9 1095 MISCELLANEOUS WEAPONS 3
How they restrict competition No set-aside stated — 12 NONE — 2 What they post Solicitation — 12 Sources Sought — 2 Listed alongside Track what DOE buys See Calvin's full record, every buyer at DOE and the contracts expiring next in FedSift's Agency Intelligence. Free plan available, no credit card.
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Source: SAM.gov contract notices that list this contact, including SAM's fiscal-year archives from FY2015. FedSift republishes public federal procurement data and is not affiliated with the U.S. Government. Is this you? Ask us to remove this page .
