I know (at levels varying from 'friend' to 'acquaintance', so the field is more like 100-200 than your 25; but these are all people I have at least conversed with multiple times) two trans men and at least seven trans women (off the top of my head.) These are all people who are, at a minimum, currently taking prescribed hormones corresponding to their self-identified gender.

But I understand that there may be a self-selection effect where a lot of trans women end up in technical fields, so my sample may well be biased.