MCI have worked in conjunction and alongside several of the leading companies and key members practicing on island, listed below are a few:

• WATER AND SEWERAGE COMPANY (WASCO)
• SKINNER HARPER AND DOLCY (closed)
• OTNEB CONSULTING (closed)
• TERRY ST CLAIR OFFICES (QUANTITY SURVEYOR)
• SANDALS RESORTS INTERNATIONAL PROJECTS OFFICE
• NLBA OFFICES
• CARRIBBEAN CONSULTING ENGINEERS
• C HEYWOOD OFFICES (QUANTITY SURVEYOR)
• FRANCIS AND FRANCIS OFFICES (MECHANICAL ENGINEERS)
• MICHELS ELECTRICALS
• PHA STRUCTURAL ENGINEERS SCOTTS
• PROJECT ENGINEERING
• GOVERNMENT OF ST LUCIA.
• GOLDER AND ASSOCIATES
• THEOBALDS CONSULTING
• DONNION ENGINEERING
• JH LARCHER ELECTRICAL