Companies that support research, building, maintaining, safety, recycling, and delivery of nuclear weapons :
Boeing (planes /components) ,
Northrup Grumman (B2, components),
General Dynamics (tactical B61 capable fighters, major Ohio SSBN upgrade),
GenCorp Aerojet (safety, plane load),
Huntington Ingalls, (nuclear subs/ships and safety),
Lockheed Martin (Planes, electronics, fusing, bomb hookups, etc) Babcock & Wilcox (uranium enrichment) ,
Betchel (research),
Honeywell (safety, components) ,
URS Corp(Y12 plant ) ,
GE (housing/release/guidance/electrics) ,
Aecom Flour (warhead assembly and plant services) ,
Jacobs Engineering (nuclear facilities and lifecycle),
Alliant Techsystems (targeting/battle damage assessment(BDA), and
Rockwell Collins (guidance/gyros)
IBM (super computers) .
Good to keep an eye out on some of these names. Many smaller companies also support nuclear transporting, storage, and safety, (ITT, Raytheon, Freightliner/Ford/GM, Colt/FN/Motorola, etc), but the big government contracts to the companies above.
Let me know if you have any questions.
Thanks Bryan!