1947: Employers Overload (EO) is founded by R.B. Miller, an industry pioneer.
1951: EO helps set the legal standard for the industry through a ruling received from the U.S. Treasury Department.
1958: EO grows through a nationwide network of branch offices.
1960: EO opens an office in Portland, Oregon.
1969: Peter J. Szambelan joins EO in Portland, Oregon as a branch manager.
1974: Peter J. Szambelan becomes an EO Franchise owner.
1988: R.B. Miller retires, and the Szambelans retain the rights to continue operating as Employers Overload.
1978-2007: EO expands throughout the Pacific Northwest and into the Columbus, Ohio area, including:
- 1978 Vancouver, WA
- 1979 Longview, WA (licensee operation)
- 1986 Beaverton, OR
- 1987 Wilsonville, OR
- 1989 Gresham, OR
- 1990 Tigard, OR
- 1992 Supported Employment Division, Vancouver, WA
- 1998 Hillsboro, OR
- 1998 Eugene, OR
- 2000 Corvallis, OR
- 2000 Salem, OR
- 2002 Columbus, OH (licensee operation)
- 2004 Newark, OH (licensee operation)
- 2007 Zanesville, OH (licensee operation)
- 2007 Grove City, OH (licensee operation)
