To be technical about it, many of the pistols mentioned in the responses don't have strikers. Most DA pistols with decockers de-cock a HAMMER, not a striker. Hammers do strike firing pins. A firing pin is analogous to a striker, but firing pins do not remain cocked or partially cocked, as do strikers. (An HK P7 does, of course, cock and de-cock its striker.)
Except for striker-fired Glocks, which I got to know very well, inside and out, and the P7, I am much more familiar with hammer-fired pistols. As the OP is asking about striker-fired pistols, not hammer-fired pistols, I will let the striker-fire gurus chime in, and defer to ther expertise.