Pacific Northern Rail Contractors Corp.
Canadian railway construction contractor and supplier of new and used railway equipment and track material.
http://www.pnrail.com/

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/

Lovat Inc.
Custom design and manufacture of tunnel boring machines (TBM) utilized in the construction of metro, railway, road, sewer, water main, penstock, mine access and telecable tunnels.
http://www.lovat.com/

Railway Sleeper.com
UK supplier of new and used hardwood and softwood railway sleepers. Railway sleepers stocked include(oak,pine,beech,jarra,azobe,greenheart,mora) for landscaping,construction and furniture.UK Delivery and cutting service for railway sleepers.
http://www.railwaysleeper.com

Railway property : A Treatise on the Construction and Management of Railways
Facsimile of Jervis's 1861 book designed to afford useful knowledge in a popular style to the holders of this class of property as well as to railway managers, officers and agents.
http://quod.lib.umich.edu/cgi/t/text/text-idx?c=moa;cc=moa;view=toc;idno=AGW7884.0001.001

Yash Group
India. Manufacturers and traders of fabric sueding, brushing, inspection and rolling machines, sample cutting and railway sewing machines, and accessories.
http://www.yashtex.com/

UCA Railway Equipment
Railroad Equipment
http://www.uca.be

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

Watteeuw
Manufacture industrial gears and transmissions for agriculture, screw compressors, turbo compressors, diesel engines, windturbines, railway, medical equipment, textile machines, printing machines, hoists and extruders.
http://www.watteeuw.be/watteeuw/default.htm

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