Yost Engineering Inc., produces sophisticated educational robotics kits, robotic and animatronics controllers and various software for healthcare providers. But it bucks the stodgy stereotype that often follows engineers, touting "a relaxed, friendly, team environment for employees." Maybe that's one reason Yost, founded in Portsmouth in 1999, has attracted so many top interns. Yost Engineering is just one of more than 700 high-tech Ohio companies who've found a partner in Third Frontier. Established in 2002, it links employers with talented college students in an effort to train and retain some of the state's most talented young workers. More than 3,000 students have gone through the program.