Exhibit 21 Woodward Governor Company Subsidiaries of the Registrant Woodward Governor Nederland B.V. Hoofddorp, The Netherlands Woodward Governor (U.K.) Limited Reading, England Woodward Governor GmbH Lucerne, Switzerland and Hoofddorp, The Netherlands Woodward Governor (Japan) Ltd. Tomisato, Chiba, Japan and Kobe, Japan Woodward Governor (Reguladores) Limitada Campinas, Sao Paulo, Brazil Woodward Governor (Quebec) Inc. Montreal, Quebec, Canada Woodward Governor France S.A.R.L. Venissieux, France Woodward Governor Asia/Pacific PTE. LTD. Singapore, Republic of Singapore Woodward Governor Poland, Limited Warsaw, Poland Woodward Governor Germany GmbH Aken and Kelbra, Germany Woodward HSC, Inc. Buffalo, New York Woodward Governor de Mexico S.A. de C.V. Mexico City, Mexico Woodward Governor Company (New Zealand) Limited Christchurch, New Zealand Woodward Governor India PTE. LTD. Ballabgarh, India Woodward Aircraft Controls Prestwick, Inc. Prestwick, Scotland Woodward Foreign Sales Corporation St. Thomas, U.S. Virgin Islands Baker Electrical Products, Inc. Memphis, MI Woodward FST, Inc. Zeeland, MI Woodward Tianjin Controls Company Limited Tianjin, China