O'Sullivan College is authorized by the Ministry of Education of Quebec to teach the following programs. Successful completion will be recognized by a Diploma of Collegial Studies (DEC) or an Attestation of Collegial Studies (AEC) sanctioned by the Ministry of Education.

• Computerized Financial Accounting (AEC-LCA.AU)
• Damage Insurance (AEC-LCA.64)
• International Trade (AEC-LCA.88)
• Media Technology for Film and Television Production Sets (AEC-NWY.18)
• Medical Transcription (AEC-LCC.05)
• Medical Records (DEC – 411.A0) 
• Office Systems Technology (AEC-LCE.44)
• Paralegal Technology (DEC-310.C0)

The length of each program depends on the diploma or attestation sought.

Programs leading to a DEC last three (3) years and those leading to an AEC last eight to twelve (8-12) months, depending of the program of study chosen. The College may change programs of study or course content, in conformity with directives from the Ministry of Education.