Katarzyna Sirak -  ISG Managing director 
Agata Kożuszek -  HISG director
Agata Maderska  - Administration manager
   
 Vanesa Jimenez Molina  - G10 and G11 homeroom teacher, Spanish teacher, native speaker
 Anna Bobrowska  - G12 homeroom teacher, math teacher
 Adriana Budzisz - Orłowska  - Geography teacher
 Edyta Caban - Żywicka  - English teacher
 David Calladine  - English and Culture studies teacher
 Aleksandra Czyżykowska - Physical education teacher
 Dorota Gąsiorowska - German teacher
 Dane Gerber  - Music teacher
 James Gibbs  - Ethics, history, business, IT teacher, native speaker
 Kamil Kucharski  - History teacher
 Teresa Łepek  - Chemistry teacher
 Ewelina Łęgowska  - Physics and science experiments teacher
 Małgorzata Macierzanka  - Biology teacher
 Magdalena Majdańska   - Polish for foreigners teacher
 Paweł Roziewski  - Physical education teacher
 Izabela Tereszkiewicz  - Polish and graphic design teacher
Zofia Wesner  - Art teacher