Exhibit 21 ---------- Subsidiaries of Registrant WMS INDUSTRIES INC. AND SUBSIDIARIES & AFFILIATES AS OF 6/30/95 Date and Type of % of State Jurisdictions Name & Tax ID No. Business Ownership Organized Qualified ----------------- -------- --------- --------- ------------- PARENT: ------ WMS Industries Holding company Public 11/20/74 New York-1/18/83 Inc. Delaware Illinois-3/29/91 36-2814522 Mississippi-12/28/94 Nevada-7/27/95 SUBSIDIARIES: (HOTELS AND CASINOS) ------------ El Conquistador Ferryboat Shuttle 100% by WHGI 9/30/93 - - Ferryboat Inc. Puerto Rico 66-0499293 ESJ Hotel Holding company 100% 6/4/84 - - Corporation Delaware 13-3237264 Isla Verde Tourism Parking Lot 100% by WHGI 11/6/92 - - Parking Corp. Concession Holder Puerto Rico Posadas de Puerto Hotel and casino 95% by 6/13/83 Puerto Rico Rico Associates, ownership WMS Hotel Delaware 7/15/83 Incorporated 66-0401424 Posadas Finance Holding company 100% by Pos. de 8/12/88 - - Corporation PR Assoc. Inc. Delaware 52-1635050 WMS El Con Corp. Holding company 100% 10/11/89 - - 06-1288059 Delaware WMS Hotel Holding company 100% 6/13/83 - - Corporation Delaware (Name Change 5/20/87 from Williams Hotel Corporation) 36-3277014 Williams Hotel Holding company 100% 5/20/87 New York-3/1/88 Corporation Delaware Surrendered-3/15/93 13-3408888 Williams Hotel management 62% by 6/13/83 Puerto Rico-7/5/83 Hospitality WMS Hotel Delaware Group Inc. (Name Change 11/3/93 from Williams Hospitality Management Corporation) 66-0408507 WMS Property Inc. R.E. Holding Co. 100% 8/27/93 Puerto Rico-9/15/93 36-3906015 Delaware -1- Date and Type of % of State Jurisdictions Name & Tax ID No. Business Ownership Organized Qualified ----------------- -------- --------- --------- ------------- SUBSIDIARIES: (GAMES) ------------ Lenc-Smith Inc. Manufacturer of 100% 3/23/92 Illinois 36-3843629 amusement games Delaware 11/4/92 Midway Manufacturer of 100% 7/15/88 Illinois Manufacturing amusement games Delaware 8/3/88 Company 22-2906244 WMS Games Asia Holding Company 79% by 9/7/93 -- Limited WMS Games Hong Kong Bus.Reg.Cert. 17358232-000-09-93-2 1% by WEG WMS Games Promotion and 100% 11/26/92 - - (Europe) GmbH Marketing of Games Germany WMS Games Inc. Holding company 100% 8/25/88 Mississippi 13-3491757 Delaware WMS Games Sales Foreign Sales 100% 4/26/93 - - Corporation Corporation Barbados 98-0132712 WMS Games Parts Amusement games 100% 2/28/90 Illinois & Service Inc. part sales Delaware 11/8/91 36-3741556 WMS Gaming Inc. Manufacture of 100% 6/5/91 IL - 6/21/91 36-3770687 Video Lottery Delaware SD - 6/12/91 Terminals and MT - 9/4/91 Gaming Machines OR - 12/12/91 LA - 12/16/91 WV - 2/3/92 RI - 10/1/92 CO - 11/24/92 MS - 2/5/93 NV - 5/10/93 WI - 11/5/93 ND - 5/13/94 MO - 8/26/94 IN - 9/23/94 IO - 9/22/94 NJ - 9/26/94 AZ - 11/4/94 MN - 5/22/95 CT - 6/16/95 WMS Gaming Manufacture of 100% 5/24/93 (Nevada) Inc. Video Lottery Nevada 36-3895992 Terminals and Gaming Machines Williams Elec- Manufacturer of 100% 4/13/84 Illinois-1/17/86 tronics Games, Amusement games Delaware Inc. 36-3331124 Williams Enter- Design, manufacture 100% 12/16/93 CA - 4/27/94 tainment Inc. and sale of amusement Delaware TX - 4/22/94 36-3933621 games for home systems -2- Date and ------------ Type of % of State Jurisdictions -------- ----- ----- ------------- Name & Tax ID No. Business Ownership Organized Qualified ----------------- -------- --------- --------- ----------- Williams Manufacturer of 100% 9/18/84 Illinois Innovative amusement games Delaware 10/17/84 Technologies, Inc. 36-3371266 Williams/ Design, manufacture 50% by 3/15/94 [Illinois Nintendo Inc. and sale of amusement WMS Games Delaware Pending] [ID# App. For] games for home systems PARTNERSHIPS: ------------- El Conquistador Hotel and casino 50% 01/16/90 Partnership L.P. ownership by WKA Delaware 06-1288145 [23.3% WMS] Las Casitas El Conquistador 50% by 4/27/93 - - Development Condominium WKA El Con Puerto Rico Company I, S development Associates en C (S.E.) Posadas de San Hotel and casino 50% by 07/30/84 Juan Associates ownership ESJ Hotel New York 66-041121 WKA Development, Real Estate 98% WHGI 6/1/91 - - S.E. Holding Company 2% WKA El Con Puerto Rico 66-0476163 (formerly WMS Development, S.E.) WKA El Con Partner in El 46.54% by 01/09/90 Associates Conquistador L.P. WMS El Con New York 06-1288143 -3-