Building Trust on Tracks:
Excellence Through Integrity in Quality Assurance
Railcar Quality Services, Inc. (RQS) is a trusted partner in the transit industry, delivering expert quality assurance oversight and on-site inspection services during vehicle production and testing—right at the source.
Founded in 1997, RQS began as a Sole Proprietorship and evolved into a California Limited Liability Company in 2008, before becoming a Corporation in 2012. With nearly three decades of experience, we’ve built a reputation rooted in integrity, transparency, and uncompromising quality.
We are proud to be a certified Minority-Owned, Disadvantaged Business Enterprise (DBE), recognized through the California Unified Certification Program and numerous DBE/MBE programs across the country—including certifications in Oregon, North Carolina, New York State and City, Georgia, Pennsylvania, and others.
Headquartered in Gold River, California—just 15 miles east of Sacramento—our team brings deep expertise, attention to detail, and a steadfast commitment to quality to every project we undertake.
Some of our Clients
CH2M Hill, Inc.
Jacobs Engineering Group, Inc.
ABB Traction, Inc.
Bombardier Transportation
Hitachi Rail
San Francisco MTA
CAF (Spain)
Pgh Wong Engineering
Calgary Transit (Canada)
Booz-Allen & Hamilton, Inc.
Jakes Associates, Inc.
Alstom Transportation
Caltrans
Los Angeles MTA
Siemens Industries, Inc.
Atlanta, GA/MARTA
Portland, OR (TriMet)
Kawasaki Rail Car
LTK Engineers
Parsons Brinkerhoff
Ansaldo Breda, Inc.
Brookville Equipment Corporation
New York City MTA
Washington (DC) Metro
Charlotte NC/(CATS)
San Jose (VTA)
Kinki Sharyo Ltd. (Osaka, Japan)