Cilcorp rhymes with:
bancorp, investcorp, keycorp, pacificorp, refcorp, summcorp, trustcorp, utilicorp, vicorp, althorp, bancorp, investcorp, keycorp, mapplethorpe, medendorp, pacificorp, refcorp, summcorp, trustcorp, utilicorp, vicorp
Cilcorp sounds like:
calgroup, calligraphy, colegrove, colgrove