Utilities and Related Entities

Northern Telecom
Corp of Engineers
California State Regional Water Resources Boards
Pacific Gas and Electric
Chevron and Shell Refineries

Technology and Related Companies

Transportation and Transit Agencies/Owners (USA)

Consulting Firms

Transit Agencies / Consulting Firms  (International)

DUPLO Engineering
RENFE -Spanish Train operator
SNCF -TGV Rail
Fundacion -CDH
Deutschebahn
Translink Rail Vancouver