According to official records at the United Nations-backed Principles for Responsible Investment (UN PRI), there were 51 signatories who were admitted at the same time on 27 April 2006:
| 1 | Caisse de dépôt et placement du Québec |
| 2 | Canada Pension Plan Investment Board |
| 3 | Bâtirente |
| 4 | Amalgamated Bank |
| 5 | CDC – Caisse des dépôts et consignations |
| 6 | Christian Super |
| 7 | New York State Local Retirement System |
| 8 | Generation Investment Management LLP |
| 9 | Stichting Pensioenfonds ABP |
| 10 | Government Employees Pension Fund of South Africa |
| 11 | Storebrand Asset Management |
| 12 | Munich Re |
| 13 | New York City Employees Retirement System |
| 14 | BNP Paribas Asset Management |
| 15 | CALPERS |
| 16 | Folksam |
| 17 | AP2 |
| 18 | Hermes Investment Management |
| 19 | Bank J. Safra Sarasin Ltd |
| 20 | Threadneedle Asset Management Ltd |
| 21 | United Nations Joint Staff Pension Fund |
| 22 | Vigeo EIRIS |
| 23 | Mercer Investments |
| 24 | Nathan Cummings Foundation |
| 25 | Stichting Pensioenfonds Zorg en Welzijn |
| 26 | Catholic Superannuation Fund |
| 27 | Wespath Investment Management (General Board of Pension and Health Benefits of the United Methodist Church) |
| 28 | Sumitomo Mitsui Trust Asset Management |
| 29 | New Zealand Superannuation Fund |
| 30 | Daiwa Asset Management Co. Ltd |
| 31 | Domini Impact Investments |
| 32 | Janus Henderson Investors |
| 33 | BMO Global Asset Management |
| 34 | Fonds de réserve pour les retraites – FRR |
| 35 | Mitsubishi UFJ Trust and Banking Corporation |
| 36 | Calvert Research and Management |
| 37 | ERAFP – Etablissement de Retraite Additionnelle de la Fonction Publique Pension Scheme |
| 38 | Ireland Strategic Investment Fund (ISIF) |
| 39 | Connecticut Retirement Plans and Trust Funds |
| 40 | British Columbia Investment Management Corporation |
| 41 | Insight Investment |
| 42 | Amundi |
| 43 | BT Pension Scheme |
| 44 | FTSE Russell |
| 45 | GES International |
| 46 | Groupama Asset Management |
| 47 | Universities Superannuation Scheme – USS |
| 48 | Pensionfund Metalektro (PME) |
| 49 | Kikkoman Corporation Pension Scheme |
| 50 | Aviva Investors |
| 51 | PREVI |
