| Institution | Year Joined |
|---|---|
| Chevalier College | 2010 |
| Southern Highlands Christian School | 2010 |
| Oxley College | 2011 |
| Bradman Foundation | 2012 |
| Tudor House | 2012 |
| Our Lady of the Sacred Heart (Hartzer Park) | 2013 |
| St Thomas Aquinas Primary Bowral | 2015 |
| St Paul’s Primary Moss Vale | 2015 |
| St Paul’s International College | 2015 |
If you are interested in joining the HHERN network, please get in touch.