The Board of Governors


The Board of Governors

The BISI Board of Govenors are dynamically involved in the running of the school and gather on a monthly basis to discuss all school related matters.


If you wish to contact the board, please email :



Erdal SezenErdal Sezen - Chairman of the Board                                                                                

Erdal was born in Ankara, Turkey. In 1974 he completed his middle school years at EHFB English High School in Istanbul. He then attended Paddington Technical College in London where he studied Pure/Applied Maths and Physics. He later moved to California where he took a Major in Electronics and Computer Engineering and a Minor in Computer Science. In 1982 he attended Stanford University where he obtained his MBA Degree. Whilst in California he met with his wife, Alexandra and they have two children, a daughter and a son. 


Erdal then proceeded to become the founder of many international companies in various countries including, Alpine Industries Trading Electronic Components), PDI LTD: Ukraine Telecommunication Engineering, Installation and Service Company For GSM Networks Located in Kiev Ukraine, Precision Design Inc: Design and Manufacturing of Multi-Layer Printed Circuit Boards For Commercial and Military Operations in California USA, PDI-Erkom A.S: Government IT Contractual Company in Ankara Turkey, Precision Design Intelligence: Media


Online and IT: Internet and Marketing both Located in Istanbul Turkey and finally BISI (PDI-Er A.S): The British International School in Istanbul.Erdal spends most of his time travelling between his various businesses but his country of residence is Istanbul. His hobbies are Scuba Diving, Skiing, Photography and Travelling.




Alexandra SezenAlexandra Sezen - Permanent Board Member                                                                             

Alexandra Sezen is of Greek origin, born in Africa and lived in the UK and the US before moving to Turkey in 1998.

She has been a board member for the past 18 years and both her children graduated from the British International School, Istanbul.






Erik KlompNazım Ünsal Abuşoğlu - Permanent Board Member                                                                                

Nazım Ünsal Abuşoğlu was born in Erzurum, Turkey, 1976. After completing his Primary and Secondary education in Istanbul, then graduated from university with a BA in mechanical engineering.

Ünsal’s further studies are in Business Administration which was followed as a combined post graduate programme from Marmara, La Salle and Main Universities. He then took various training in marketing, management, finance and digital media which has led him to the Information Technology sector.

Ünsal joined Superonline where he directed Campaigns and dealt with VIP customers. Then he worked long years as a manager and business development responsible at PDI Group which operates in Education, Digital Media, Finance and Information Technology fields.

Ünsal is currently acting as a Board Member and General Manager of PDI Group. He is also the managing partner of Online Media Marketing Agency and PDI Digital Media Agency.

He is representing the PDI Group at the Board of Governors of the British International School, Istanbul.



Erik KlompErik Klomp - Board Member                                                                                

Erik Klomp is a Dutch citizen who graduated as a civil engineer. He started his working career as a dredging engineer in Saudi Arabia working for an international contractor. After 2 years he decided to continue his education and studied marketing and sales for his second degree. He continued his career by working for an international trade agency which specialised in trade in Eastern Europe and Russia.


After gaining enough export experience he became International Sales Manager for a large Dutch trading company focusing on the, at that time, newly emerging Russian market. Seeing the opportunities in the fast growing market in Russia, he started his own business which concentrated on the sales of construction materials. Twelve years after his start in Moscow he finally ended up in Istanbul.


Today his own business, named Novodoor, has developed well and became a major door supplier for contractors in Turkey and abroad. Erik is married and has three children who all attended BISI. He likes to travel with his family abroad to gain new experiences and loves all kinds of adventurous sports.


Erik has been a member of the Board of Governors of BISI since 2009. His goal is that BISI will continue to be the best International School in Turkey and that the Board of Governors, the school leadership, the parents and the students will cooperate in such a way to achieve the best out of it!



Levent KafkaslıLevent Kafkasli
Education: Istanbul Technical University, Civil Engineering Department, B.Sc, 1987, University of Istanbul, Construction Management MBA 1988.

Career: He has started his professional career, in 1988 as Site Engineer at various companies. He joined Tekfen Construction and Installation Co., Inc. in 1990. He was Site Engineer, Company Representative, Head Office Coordinator, Project Manager at sites, respectively until 2005.
Mr. Kafkaslı who was Vice President in Azfen JV from 1999 to 2000, was appointed as Vice President, Operations Responsible for Caspian Region in 2005. In May 2013, he was appointed as the President of Tekfen Construction.

Mr. Kafkaslı is married, with 2 children and fluent in English


Richard I'AnsonRichard I'Anson - Associated Board Member

Richard I'Anson was born in London, United Kingdom in 1965. He attended Nottingham Trent University and graduated in 1989 with a BEng Honours degree in Mechanical Engineering. Richard worked for two years within the production department of Bridgeport Machines, a Leicester based milling machine manufacturer.


Following a short period of travel, Richard embarked on a significant career change and attended Leicester University where he obtained a Post Graduate Certificate in Education, specialising in Early Years and Primary. His first teaching post was for two years in Alexandria, Egypt. He then went on to work as a Primary Teacher for the London Borough of Croydon. During his ten years within the borough, Richard had various leadership roles including, Head of ICT, EYFS and Key Stage One Leader, Deputy Head Teacher and Member of the Board of Governors.


In 2004, Richard joined the British International School Istanbul and currently leads the EYFS and Primary section at both the City and Zekeriyaköy Campuses. In addition to his leadership role, Richard is a Council of International School Team Visitor and supports the accreditation process for schools around the world.


William BradleyWilliam Bradley - Associated Board Member

William was a late entrant into the field of education, having delayed going to university until he was 33 years old. Since taking his first position as a Teacher of Mathematics at the age of 36, William has taught in the UK, Bermuda, the United Arab Emirates, Qatar and Turkey. William is currently in his tenth year as Director of Secondary at BISI.


William is married to Cheryl and they have two sons, one living in Bournemouth in the UK and one living in Auckland, New Zealand. They are grand parents with a grandson and two granddaughters and their permanent home is on the Greek island of Skopelos.