This is a Small Business Sources Sought Notice seeking information on qualified small businesses capable of providing comprehensive maintenance and repair services for four Optos California ultrawide-field imaging devices used by the National Eye Institute (NEI). The contractor would perform on-site planned and emergency maintenance, including parts and repairs, with a technician on-site within 48 hours of request and service visits during 8:00 a.m.–5:00 p.m., Monday–Friday, excluding holidays. The anticipated period of performance is January 1, 2027 through December 31, 2027, with services performed on-site at NEI/NIH. Interested small businesses must demonstrate relevant capability and provide their business size/type, UEI, organization details, and points of contact; the notice is intended to help define the acquisition strategy and is not a solicitation. Respondents should also indicate whether they maintain or could establish an administrative office within 100 miles of the NIH campus.