| Name | Type | Sector | Country | Joined On |
|---|---|---|---|---|
| International Centre for Sustainable Development (ICSD) | Civil Society Organization & Other | Greece | 06-Oct-2011 | |
| Cosmos Aluminium | Small or Medium-sized Enterprise | Building Materials: Other | Greece | 16-Jul-2009 |
| Fourlis Holdings SA | Company | Diversified Retailers | Greece | 26-Nov-2008 |
| Athens Water and Sewerage Company - EYDAP S.A. | Company | Water | Greece | 02-Jul-2008 |
| Club Serres for UNESCO | Civil Society Organization & Other | Greece | 01-Jul-2008 | |
| Interamerican | Company | Life Insurance | Greece | 18-Jun-2008 |
| INTRALOT | Company | Casinos and Gambling | Greece | 18-Jun-2008 |
| Metlen Energy & Metals | Company | Multi-Utilities | Greece | 18-Jun-2008 |
| OTE S.A. - Hellenic Telecommunciations Organization S.A. | Company | Telecommunications Services | Greece | 18-Jun-2008 |
| Athens Chamber of Commerce and Industry - ACCI | Business Association | Greece | 17-Jun-2008 | |
| Athens International Airport S.A. | Company | Transportation Services | Greece | 13-Jun-2008 |
| SEV Hellenic Federation of Enterprises | Business Association | Greece | 13-Jun-2008 |