Yep, Pip's teleportation powers are a result of the Space stone. That's two of the Infinity Watchers who kept some of the powers.
I think there is a third person as well.
I was just discussing Maxam in another thread. Maxam was/is a warrior from the future, but it was never clear how he arrived in 616 from the future. My guess is that he used future tech or a time machine. But while he was in 616 he was given the Time gem. At the end of Warlock and the Infinity Watch all of the Infinity Stones disappeared, including the Time stone that Maxam had. Nevertheless, Maxam was able to teleport back to his future, even though he didn't have the Time gem, and without using any technological device to do so. My guess is that Maxam also retained some of the power from the Time gem. When you think about it, it kind of makes sense that a person who once held the Time gem will always have it, since the gem collapses past, present and future into one and the same.