Most of EIC’s constituent societies maintain About Us or History pages on their own websites. Here are convenient links to their pages:
CDA History Page
CGS History Page
CMBES History Page
CNS History Page
CSBE History Page
CSCE History Page
CSChE History Page
CSEM History Page
CSME History Page
CSSE History Page
IEEE Canada History Page
IISE Canada Region History Page
TAC History Page
URSI Canada History Page