The following brands have screwdriver lines with hex bolsters, some with striking caps. I'm working on making a complete list, so if someone has a brand to add please chime in. Some brands are mentioned more than others, this is just a list in no order.
PB Swiss
Witte
Wera
Wiha
Facom
Felo
Gedore
Hazet
KS Tools
Vessel
Williams
Snap-On
Elora
Steelman Pro
Proto
MAC
Gearwrench
I use my Wera 900's for dirty use, and PB Swiss drivers for everything else although they're more than capable. Many brands on this list are highly spoken of, some hardly mentioned due to the difficulty of buying them.