Below you can find logos, similar to the Federal Signal.

Federal Law Enforcement Federal Law Enforcement vector
Ausport Federal Government Ausport Federal Government vector
Allied Signal Allied Signal  vector
Policia Federal de Caminos Mexico Policia Federal de Caminos Mexico vector
FIRST FEDERAL BANK OF CALIF FIRST FEDERAL BANK OF CALIF vector
Alfa Signal Alfa Signal vector
federal bureau of nvestigation federal bureau of nvestigation vector
GLENDALE FEDERAL GLENDALE FEDERAL vector
HSW Signall HSW Signall vector
Fidelity Federal Fidelity Federal vector
Federal Mogul Federal Mogul vector
Club Tiro Federal de Bahia Blanca Club Tiro Federal de Bahia Blanca vector
Federal Aviation Administration Federal Aviation Administration vector
Signal Croissance Signal Croissance  vector
Navy Federal Navy Federal vector