Outside is used with these nouns:
agency, assistance, auditor, bet, broadcast, chance, consultant, contractor, corner, counsel, customer, diameter, edge, expert, expertise, force, funding, help, influence, interest, interference, intervention, investment, investor, lane, lavatory, light, line, loo, observer, source, staircase, supplier, toilet, wall, world

Outside is used with these verbs:
snow, step, venture