- Cintra Concesiones de Infraestructuras de Transporte S.A. (Equity Member)
- Meridiam Infrastructure SICAR (Equity Member)
- Ferrovial Agromán S.A.
- W.W. Webber, LLC
- Earth Tech, Inc.
- Maunsell Australia Proprietary Limited
- AE Com
- Aguirre & Fields, LP
- JPMorgan
- Ross Communications
- CSJ Engineering Assoc.
- Dallas Police and Fire Pension System