The Department of Energy is seeking qualified subcontractors to provide janitorial services at the Nevada National Security Site (NNSS), operated by Mission Support and Test Services (MSTS). The subcontractor will be responsible for maintaining cleanliness in secure areas, requiring personnel to have appropriate security clearances, and ensuring adequate supervision and management of staff. This opportunity is crucial for maintaining operational efficiency at the NNSS, which spans approximately 3,561 square kilometers and supports various governmental functions. Interested companies must respond by April 18, 2025, to Pam Grant at GrantPM@NV.DOE.GOV or by phone at 509-392-1081, as this notice serves as a sources sought announcement for market research purposes and is not a solicitation for proposals.