Comptran has undertaken projects under collaborative arrangement with various international consulting firms including the following:

Mutenga Batumbya Consulting Engineers, Kampala, Uganda
PROME Consultants Limited, Uganda
3BMD Associates – Consulting Engineers, Sierra Leone
Beza Consulting Engineers, PLC, Ethiopia
Agecet – BTP, Togo
SNC Lavalin, Canada
RAMBOLL International, Denmark
Carl Bro. International, Denmark
Construction Project Consultants, Japan
Crown Agents, United Kingdom
Louis Berger S.A., France
Ross Silcock Partnership, United Kingdom
Thorburn Colquhoun International, United Kingdom
Sogreah Ingenierie, France
Wardrop Engineering Inc., Canada
Snowy Mountains EngCorp.(SMEC), Australia