I thought so, but they are the only ones I know of.
What about some powered armour suits (from your range of choice - bulky or 'sleek') painted in 'hi-vis' safety schemes, with hoses or extinguishers replacing the weaponry?
Black Hat do some good stuff in their Cobalt and Mutants and Madmen ranges. Dreadball figures, Studio McVey or similar may work too?