What MEPCO does. Based near Maldon, Essex MEPCO Engineering Limited provides comprehensive Mechanical design services assisting you from the earliest stages of a project through to its complication. We supply mechanical design / drawing services to industry based in Essex. We can design from concept to production package using industry standard Solidworks CAD package. We can also produce proof of principle designs and go straight to prototype using our own machine shop. We are also very good at taking on existing prototype and re-engineering it for production volume by using the latestproduction methods.