WIST is a member school of the Caribbean Evangelical Theological Association (CETA) formerly Caribbean Association of Bible Colleges (CABC).
WIST is presently a registered for Accreditation with the Accreditation Council of Trinidad and Tobago (ACTT).
WIST is presently a member of Caribbean Area Network Quality Assurance for Tertiary Education (CANQATE) and International Network for Quality Assurance Agencies in Higher Education (INAAHE).