If this is the correct Institute, it is affiliated to the University of Porto - in which case, simply Institute... I think the superior in this case refers to the fact that it is a university-level institute. Many universities have their own institutes.

UP - Instituto Superior de Estudos EmpresariaisAddress:. R. dos Salazares, 842 P-4149-002 Porto Tel: +351.226 153 270 Fax: +351.226 100 861 E-mail: [email protected] URL: http://www.egp.up.pt ...
www.up.pt/site_ingles/conhecaup_i/ facinst_i/egp_i/egpt_i.htm

Creating A Culture Of Entrepeneurship - Plugging The Leaks p3
... continue to work with its long-term academic partners such as Pembrokeshire
College and the Institute of Business Studies, University of Aberystwyth. ...
www.planed.org.uk/e_t/Eet_3.htm

Lingnan University - Hong Kong Institute of Business Studies
Tel: 2616 8373 Fax: 2572 4171 Email: [email protected]. © Copyright 2005 Lingnan
University, Hong Kong Institute of Business Studies.
www.ln.edu.hk/hkibs/index.shtml

INSTITUTE OF BUSINESS ADMINISTRATION
Institute of Business Administration (IBA) which, is so far known for its quality
... Later, it was associated with the University of Southern California. ...
www.pakistaneconomist.com/database1/cover/c2002-12.as