1. Anderson International Corp, 6200 Harvard Avenue, Cleveland, OH 44105, USA (http://www.andersonintl.net).
2. Crown Iron Works Company, P.O. Box 1364, 1600 Broadway Street N.E., Minneapolis, Minnesota 55440-1364, USA (http://www.crowniron.com).
3. Desmet Ballestra Group N.V. Minervastraat 1, B – 1930 Zavetem, Belgium (http://www.desmetballestra.com).
4. The Dupps Company, 548N. Cherry Street, Germantown, OH 45327, USA (http://www.dupps.com).
5. Duyvis, B. V. Machinefabriek P. M. Duyvis, 1541 KD Koog ann de Zaan, P.O. Box 10, The Netherlands (http://www.pmduyvis.nl).