Service agreement for four Analytical Ultracentrifuges

The National Institutes of Health, through the National Institute of Biomedical Imaging and Bioengineering (NIBIB) Laboratory of Dynamics of Macromolecular Assembly (LDMA), is procuring a service agreement for maintenance, support, and repairs of four analytical ultracentrifuges (AUCs)—specialized instruments capable of spinning samples at speeds up to 60,000 rpm with integrated laser and UV light systems for molecular tracking and data collection. These instruments support critical biomedical research in protein structure, macromolecular interactions, and nanoparticle studies. Offerors must submit capability statements, technical proposals, cost-price proposals, period of performance specifications, Unique Entity ID, Taxpayer Identification Number, and business size certification. The procurement will be conducted under FAR Part 13 Simplified Acquisition Procedures using non-competitive sole-source contracting due to the specialized technical requirements and precise specifications necessary for proper AUC operation. All interested parties must maintain active registration in the System for Award Management (SAM) and submit proposals to Mr. Vishnuvajjala Hanumanth Rao at vishnuh@mail.nih.gov by April 18, 2026 at 9:00 AM Eastern time.

This procurement has no set-aside designation and is being sole-sourced to Bio Niquest Labservices (696 San Ramon Valley Blvd #346, Danvalle, CA 94526), the incumbent contractor providing these specialized services. The contract is not to exceed $350,000 and covers maintenance, replacement parts, and repairs for the four analytical ultracentrifuges under FAR Part 13 procedures. The NAICS classification is 811210 (Electronic and Precision Equipment Repair and Maintenance) with a $34.0 million size standard, and the PSC code is J066 (Maint/Repair/Rebuild Of Equipment—Instruments and Laboratory Equipment). While the government has indicated its intent to award to the current contractor, the presolicitation notice remains open for other interested parties to submit competing proposals through the April 18, 2026 deadline.