About Us

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What is ISENZ?

ISENZ (International Student Education New Zealand) is an organisation which can take the hassle out of arranging study in New Zealand. Effectively, we are a one stop shop for overseas students wishing to study in New Zealand. ISENZ was established in 2003 by Russell Trethewey (ISENZ Company Director), former Principal of Freyberg High School and a leader in high school education in New Zealand. Russell has a passion for education and is a strong believer in the value of international study.

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Our Services

ISENZ provides the following services:

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Our Team

Russell Trethewey

Company Director

Amanda Trethewey

Marketing Manager

Lesley McDonald


Mattana Khwanyao


To find out how ISENZ can help you, get in touch with us.