- 1945 – I.D.E.A., Industrial Development Engineering Associates
- 1947 – I.D.E.A., Inc.
- 1950’s – Several divisions within I.D.E.A. created
Regency Division
Radell Division
Monitoradio Division
Electronic Equipment Division - 1955 – Radio Apparatus Corporation merged with I.D.E.A.
- 1961 -Name changed from I.D.E.A. to Regency Electronics Inc.
- 1960’s – Operations added
Metrotek Electronics Inc.
Regency Avionics - 1989 – Regency became Relm Communications Inc.