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Management Team

The management team at SISB is dedicated to ensuring our organisation remains true to its mission to be a leading educational provider that equips, enhances and empowers diverse learners as contributing global citizens.

Mr Koh is the co-founder and chief executive officer of SISB Co. Ltd. Mr Koh was educated in Singapore and has been based in Thailand since 1992. He holds an executive MBA Degree from Sasin, Graduate Institute of Business Administration of Chulalongkorn University, Thailand and a diploma in mechanical engineering from Ngee Ann Polytechnic, Singapore. He speaks fluent English, Chinese and Thai.
Ms Panthip Kolyanee is a Licensee representative of SISB and School Director of SISB Pracha Uthit campus. She served for eight years as the School Director of an international school prior to joining SISB and has also amassed more than 20 years of teaching and management experience in the education industry. Ms Kolyanee holds a Master Degree (MPE) from Thammasat University, a Bachelor of Arts Degree from Chiangmai University and a Post Graduate in Education Management from Chiangmai Ratchapat University.
Ms Kaewkanokvijit is the co-founder and admissions director of Singapore International School of Bangkok. Overseeing the admissions department of the school, Ms Kaewkanokvijit spearheads all student enrolment matters and serves as the key liaison for the school with the parents and students. She also sits on the board of directors. Ms Kaewkanokvijit is a trained accountant and holds a diploma in accounting from Rajamangala University of Technology, Thailand.
Ms Narisa Lertnamwongwan has been on the academic team of SISB since 2007. She started her career at SISB as an early-years teacher, and rose to become a member of the management team. Ms Lertnamwongwan oversees the early-years sections of all five SISB campuses as their Executive Principal, and manages the Thonburi and Ekkamai campuses as Principal. She has two Bachelor’s Degrees (one in Psychology), Diploma in Business Management, in Montessori and in Early Childhood Development.
Ms Leelasaengsai works with the CEO on the overall control and responsibility of the organisation’s financial strategy, analyses figures and implements recommendations on the group’s finances. She oversees the finance system of the corporate unit and schools under the SISB Group and plays an instrumental role in the Group’s expansion and joint venture projects. Previously to joining SISB, she has worked as the Financial Controller and Finance Director of various reputable companies in the high-end retail and FMCG sectors and one of Asia’s largest casual dining and quick-service restaurant company. She holds an MBA and an MS from California State Polytechnic University, USA and a BBA from Assumption University, Thailand.
Mr Ngiam oversees and directs the operational activities of SISB and administers policies in accordance with the Group’s objectives. A veteran in the hospitality industry who has served as the General Manager of major hotel chains in Thailand, Mr Ngiam was formerly the Operations Director of Sodexo Support Services, Thailand, a French based market leader in the provisions of quality healthcare, corporate and education services. He graduated from Ecole Des Roches, Switzerland with a specialisation in hotel & tourism management.
Ms Euamporn Warawatanathamrong joined SISB in 2013 as Accounting Manager and rose to become Senior Accounting Manager. She oversees the overall control of accounting and financial organisation and process, as well as the account and finance system of the corporate unit and schools under SISB Group. Before joining SISB, Ms Warawatanathamrong worked as the Finance and Human Resource Manager of German-based Thyssenkrupp Elevator and Escalator for almost 10 years, and also for more than three years with Sodexo health-care support services from France, which provides outsourcing of health-care related services. Ms Warawattanathamrong holds a Bachelor of Business Administration (accounting major) from Ramkhamhaeng University, Thailand.