Bilt Rewards has announced Marriott as the latest travel partner. Members can transfer Bilt points to Marriott at a rate of 1:1. In addition for every 20,000 Bilt points you transfer in a single transfer you’ll receive 5,000 bonus Marriott points. You can also earn 100 Bilt points by linking your Bilt & Marriott accounts in the Bilt app.
Given Bilt’s other transfer partners and the transfer rate I don’t think this is a particularly interesting transfer partner and represents poor value. It might get interesting if Bilt offers an insane transfer bonus.