1984. 5.  7  

CHO, Inc establishment 

 1987. 5. 11

Changing name of company into MTI(Mentor Technologies, Inc)

 1989. 8. 1 - Current

NASA/GSFC : EOSDIS / TSDIS System Design and Development support

 1990. 9. 12 - 1999. 3

US Army ARL : engineering R&D 

 1995. 6. 26 - 2002. 4. 2

US Army  OPTEC : Multiple target tracking system enhancement services and maintenance

 1995. 8. - 2000. 5

NRL(Naval Research Laboratory): Space Telecommunication /

Low-power Atmospheric,  Compensation Experiment Satellite

 1996. 8. - 2001. 9

NSA(National security agency) SW/HW Support Maryland Procurement Office, Ft. Meade

 1997.11. 1  - Current

US Marine C4I/Quantico communications engineering support