Ramp (business spend platform) is launching a transferrable partners program. The following partners are available:
Marriott Bonvoy
Wyndham Rewards
British Airways Executive Club
KLM/AF Flying Blue
Qatar Avios
Aeromexico Rewards
Avianca Lifemiles
Etihad Guest
Qantas
TAP Air Portugal
Unfortunately the transfer rate is 1.5 ramp points = 1 transferrable point. Ramp offers 1.5x points on all purchases and a 25,000 point sign up bonus after $1,000 in spend. Going to be a pretty niche addition, but might be useful for some.
Hat tip to sammyph200 & award wallet