Bulgarian Association of Consulting Companies in Railway Construction.
BACCRC. Bulgarian association of companies, whose activity is concerned with design, supervision and science researches in the field of the railway construction.
http://www.bakfjs.org/

Australian Railway Industry Corporation
Australian railway export association comprising companies supplying technologies to railway operations worldwide.
http://www.aric.net.au/

Railway Preservation Resources
Helping professionals, museums and private owners understand, conserve, restore and operate historic railway equipment. Historic railway consulting, research, conservation, restoration and collection management.
http://www.railwaypreservation.com

OpenTrack - Simulation of Railway Networks
ETH Zuerich
http://www.ivt.baug.ethz.ch/opentrack.html

National Railway Company of Tunesia - SNCFT
Information on the Tunisian railway system
http://www.tunisiaguide.com/trains/trains-out.html

Railway Technical Web Pages
Find the best information on railways and railroads around the world.
http://www.railway-technical.com

The Railway Forum
UK railway trade association which represents all sides of the industry.
http://www.railwayforum.com

Kershaw Mfg. Co.
Kershaw is a manufacturer of railway maintenance equipment serving the railway, utility and forestry industries worldwide.
http://www.kershawusa.com/

CADIZM
engineering design signalling railways technology computing
http://www.cadizm.com

Railway Project Engineering
Australian based railway consultancy, specialising in freight rolling stock and locomotive design.
http://www.railwayproject.com/