Rafael Herzberg is a partner at Interact Ltd, a Brazilian energy consulting company.
- Electrical engineer graduated by Instituto Mauá de Tecnologia (1976).
- Co-founder and consulting partner at Interact Ltda. (since 1992)
- CEO at ELTEC S/A from 1987 to 1992 where he started as an intern in 1976ELTEC was a leading Brazilian connector and accessories company supplying for all the electric sector (generation, transmission and distribution)
- Led the ALCOA - ELTEC joint-venture from 1990 to 1992