The phrase "select partners" means to choose or pick out a group, team, or individual(s) that you want to work with or collaborate with. Full definition
Earn points and miles when you book directly with select partners. (hipmunk.com)
Also available on all Show days, a free shuttle service runs every 20 minutes to and from select partner hotels. (sema.org)
We may also share your data with carefully selected partners who may also send you information about products they believe will be of interest to you. (educationbusinessuk.net)