RailPlan, Inc. (formally EDA Inc.) was formed in 1987 and began work immediately with Amtrak on  the Ontario Northland Uni-Level Conversion engineering program.

EDA continued to work  on projects as varied as the Caltrans Intercity and Food Service Cars, ABB Septa Norristown N-5 Vehicle, Amtrak Amfleet I Cab Conference Car, Bursa Turkey and Calcutta India LRV Programs, The State of North Carolina Car Refurbishment Program, and Virginia Railway Express Bi-Level cars. In 1995 EDA Inc. was purchased by ICF Kaiser and became a wholly owned subsidiary known as Kaiser / EDA.

1999 -   three of the original partners reacquired the business from Kaiser and created a new entity known as RailPlan International, Inc.

1986 -  The original business (EDA) Incorporated was formed in Silver Spring, Maryland.

1991 -  RailPlan (as EDA) designed and manufactured the first ADA compliant toilet room modules for Metro North           Railroad (M-6)

1995 -  RailPlan (as EDA) designed and manufactured the first ADA compliant toilet room modules for Amtrak

1995 -  EDA is sold to ICF Kaiser International (wholly owned subsidiary)

1998 -  RailPlan re-purchased the assets of EDA from ICF Kaiser

2001 -  RailPlan relocated it’s current headquarters and manufacturing facility in Baltimore       Maryland

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