The National Institute of Standards and Technology (NIST) is seeking sources for on-demand catering services for official conferences and meetings at its Boulder, Colorado campus, with a base period of one year and four one-year options. Services may be performed on-site or off-site within 50 miles of the NIST Boulder campus, and the contractor must also be located within that radius. Attendee numbers range from 20 to 325, with events lasting 1-5 days. Budget information is not specified, but meal cost limits are set at $20 per person for continental breakfast and $22 per person for lunch, inclusive of gratuity and service charges. This is a sources sought notice for market research only, not a solicitation.