Groen Brothers Aviation, Inc.
| OTC Markets: GNBA
Groen Brothers Aviation, Inc. is engaged in the business of designing and developing gyroplanes and gyrodynes. The company markets its products to the law enforcement agencies, public service organizations, military, commercial and private users. The company was founded by David L. Groen and H. Jay Groen in 1986 and is headquartered in Salt Lake City, UT.