- 1992 SB 1448 California Charter Schools Act approved by CA Legislator
- 1993 California Charter Schools Act goes into effect
- 1993 Randy Gaschler starts Horizon Instructional Systems (today known as Horizon Charter)
- 1998 Randy Gaschler forms non-profit organization Innovative Education Management, Inc. (IEM) – a management company for charter schools
- 2005 South Sutter Charter School founded – Northern California
- 2005 Ocean Grove Charter School founded – Bay Area
- 2007 Sky Mountain Charter School founded – Southern California
Today IEM continues its mission in serving over 6000 students through its 3 charter schools.
A Rich History in Charter School Development
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- Horizon Charter (1993 – formerly Horizon Instructional Systems)
- Mattole Valley Charter School (1998)
- Golden Valley Charter School – Ventura (2001)
- Connecting Waters Charter School (2002)
- Liberty Family Academy
- Delta Empire
- Heritage Family Academy
- Eagle’s Peak
- Muir Charter School
- Accelerated Family Academy