Gentex (GNTX) 10-K 2016 FY Annual report

Exhibit 21

List of Gentex Corporation Subsidiaries

1. E.C. Aviation Services, Inc., a Michigan corporation, is a wholly-owned subsidiary of Gentex Corporation.

2. Gentex Holdings, Inc., a Michigan corporation, is a wholly-owned subsidiary of Gentex Corporation.

3. Gentex GmbH, a German limited liability company, is a subsidiary 50% owned by Gentex Corporation and 50% owned by Gentex Holdings, Inc.

4. Gentex Japan, Inc., a Japanese corporation, is a wholly-owned subsidiary of Gentex Corporation.

5. Gentex Mirrors Ltd., a United Kingdom limited liability company, is a wholly-owned subsidiary of Gentex Corporation.

6. Gentex France, SAS, a French simplified liability corporation, is a wholly-owned subsidiary of Gentex Corporation.

7. Gentex Technologies Korea Co., Ltd., a Korean limited stock company, is a wholly-owned subsidiary of Gentex Corporation.

8. Gentex (Shanghai) Electronics Technology Co., Inc., a Chinese limited liability company, is a wholly-owned subsidiary of Gentex Corporation.