|Tech Manufacturing Sub Groups||Count||%|
|3||Instruments: Medical, Optical||285||15.90%|
1) Tech Manufacturers employ 7% of all OC workers.
2) Tech Manufacturers employ 50% of all OC manufacturer workers.
3) A total of 87,700 people are employed by tech firms.
4) Santa Ana and Irvine are home to 29% of OC tech firms.