ARA is an experienced firm. I still have an old version of ATBlast I picked up from a Protective Design seminar. I'd say off the top of my head for blast design or analysis, you got Baker Engineering, Karagozian and Case, Weidlinger, Century Dynamics has some impressive modelling capability but I'm not so sure about their blast expertise...couple more firms I can't think of right now....
As an engineer, it's great to have the money to model the "what if"s and "how could"s, but as a taxpayer I cringe a little spending money on a goose chase that isn't going to assuage anyone...
