Didula Nawanjana Karunaratne (Male) - Medical Student, 3 As for A/L s. An Instructor and Exam marker, Making Chemistry papers/Answers
Pulasthi Senawardena (Male) - BSc (Hons)
Sandamina De Silva (Male) - University candidate
Lalindra Karunarathna (Male) - Former Assistant Lecturer, Department of Chemistry, University of Jayawardenepura, Over 20 years of teaching experience
Wipula Wickramarathna (Male) - BSc, National School teacher, Paper marking examiner
Excel Educational Center - Classes are conducted by qualified and experienced teachers
Saman Geeganage (Male) - B.Sc, M.Sc