Current: ProActive Engineering Inc.

2006:         PSL - Physical Sciences Lab - Ice Cube Project

1998~2005: Berg Liquor Dispensing Systems 

1993~1995: Accurate Solid Material Feeders 

1992~1992: Decar Inc. (no longer in business)

1989~1992: Nicolet Instruments Inc. (Analytical Div.)

1988~1989: Burdick Corp. - electrocardiographs

1978~1988: Nicolet Instruments Inc. (Oscilloscope Div.)

1976~1977: Hewlett Packard (Data Terminad Div.)

1975 (Summer): IBM Madrid, programmer intern

1971~1975: U.Wis.Madison - Engineering Computing Lab.

1970:         NCR Corp. - Milwaukee Wis. 

1965~1969: USMC Paris Isl./Cherry Point NC/Da Nang Viet.