32
E.5.28.10.73... service bureaus
E.5.28.10.82... typefoundries
E.5.28.10.82.4.... digital foundries
E.5.28.21..
E.5.28.21.7... small businesses
E.5.28.37.. business ventures
E.5.28.37.4... joint ventures
E.5.28.37.6... partnerships
E.5.28.51.. companies
E.5.28.51.5... corporations
E.5.28.51.5.6.... non-profit corporations
E.5.55. institutions
E.5.55.4.. foundations