Diving Machine G5 at Janfusun Fancyworld in Taiwan doesn't, but it also has no inversions period and literally is just the main drop, a turn, another tiny drop, then brakes.
Oblivion at Alton Towers also does not, but also has no inversions.
Otherwise, yes, all of the B&M dives have an immelmann as their first element (unless you count tunnels or splash downs as elements, since some of them have those).