This is a market research Sources Sought notice, not a solicitation, from NIST seeking information on vendors that can provide a Wavelength Meter. The government will use the responses to determine if a small business set-aside is possible, and all responsible sources, including large and small businesses, are encouraged to respond. The applicable NAICS code is 334516, with a small business size standard of 1,000 employees. No budget information or location for performance of services is specified. The only timeline mentioned is the deadline for submitting capability statements to the Contract Specialist.