| Contributing firm | Author(s) |
| Colombia | |
| Philippi Prietocarrizosa Ferrero DU & Uría | Martin Carrizosa |
| England | |
| Coombs Martin | Sarah Martin |
| Jomati Consultants UK | Tony Williams |
| Estonia | |
| SORAINEN | Aku Sorainen |
| Germany | |
| KermaPartners | Rupprecht Graf von Pfeil |
| Mexico | |
| KermaPartners | Leopoldo Hernández Romano |
| Rocio Vazquez | |
| Singapore | |
| Freshfields Bruckhaus Deringer LLP | Stephen M Revell |
| Switzerland | |
| Internal Consulting | Michael Roch |
| Ukraine | |
| Independent Consultant | Iryna Nikitina |
| USA | |
| Walker Clark LLC | Lisa M Walker Johnson |
| Norman Clark |
