- Academy Plastic Model
- Accurail
- Aeronaut Books
- Agassiz Publications
- AK Interactive
- American Art Clay
- American Limited Models
- AMT Models
- Andover Junction Publications
- ANE Model
- Arizona Hobbies
- Atlantis Models
- Atlas
- Aubrey Publications
- Bachmann
- Badger Air-Brush
- Baltimore and Ohio Railroad Historical Society
- Bandai Namco
- Benchmark Publications
- Big Jim Video Productions
- Blair Line
- BLMA Models
- Bluford Shops
- Bob Smith Industries
- Bobs Photo Railroad Books
- Bowser Manufacturing
- Bowyer Productions
- Broadway Limited
- Brooklyn Peddler
- Bullfrog Snot
- Caboose Industries
- Cal-Scale
- Calvert Systems
- Canadian Caboose Press
- Carstens Publications
- Center for Railroad Photography and Art
- Central Electric Railfans Association
- Central Valley
- Challenger Press
- Charles Smiley Presents
- Chooch Industries
- Circuitron
- City Classics
- Classic Metal Works
- Colorado Historical Society
- Colorado Railroad Museum
- Con-Cor International
- Dapol
- DCC Concepts
- DeLorme Publishing
- Depot Square Publishing
- Design Preservation
- DeskMap Systems
- Double Take Productions
- Durango Press
- Eaglemoss
- EB Trucks
- Edson Publications
- Electric Railroaders Association
- Enthusiast Books
- Estes Rockets
- Evergreen Scale
- Express Press
- Fine Scale Miniatures
- Fleischmann
- Floquil-Polly S
- Four Ways West Publications
- Fox Valley Models
- GarGraves Trackage
- George H. Deike
- Glencoe Models
- Golden West Books
- Grenadier Publications
- Hasegawa
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- Heartland Rails
- Hobby Boss
- Hob-e-lube
- Hundman Publishing
- Imex
- Imperial Hobby Productions
- InterMountain Railway Company
- Italeri
- J & L Innovations
- Jacksonville Terminal
- JM Hobby Supply
- John Pechulis Media
- J-T Publishing
- JTs Mega-Steam Smoke
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- K+S Engineering
- Kachina Press
- Kadee
- Kahndog Publications
- Kalmbach Publishing
- Kato
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- Kitty Hawk
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- Kratville Publications
- Labelle Lubricants
- LGB
- Lindberg-Hawk
- Lionel
- Lockridge Press
- LokSound by ESU
- Machines of Iron
- Main Track Media
- Marklin
- McMillan Publications
- Mid-South Media
- Midwest Products
- Mileposts Publishing
- Miller Engineering
- Minatronics
- Minicraft Models
- Model Power
- Model Rectifier
- Moebius Models
- Monroe Models
- Morning Sun Books
- Mountain Automation
- MPC Models
- Mr. Hobby
- MTH Electric Trains
- Museum of North Idaho
- N&W Historical Society
- Narrow Gauge Preservation Foundation
- National Geographic
- NCE DCC
- New York Central System Historical Society
- NixTrains
- NJ International
- NMRA Gauges
- Norscot Models
- North Texas Chapter NRHS
- NorthWest Short Line
- Northwestern Pacific RR HS
- Old Line Graphics
- Omni Publications
- Operations Special Interest Group
- Oso Publishing
- Outer Station Project
- Pacific Fast Mail
- Panda Model
- Peco
- Pegasus Hobbies
- Pennsylvania Railroad T&H Society
- Pentrex
- Pictorial Histories Publishing
- PikeStuff
- PineCar
- Plastruct
- Polar Lights
- Prairie Works
- Pre-Size Models
- R Robb Ltd
- Railpace Company
- Railroad Avenue Enterprises
- Railroad Explorer
- Railway Express Miniatures
- Rapido Books
- Rapido Trains
- Ratio Models
- RD Publications
- Revell
- RF&P Railroad Historical Society
- Rix Products
- RK Publishing
- Rock Island Hobby
- Rock Island Lines
- Roco
- RP CYC Publishing
- RPC Publications
- Salvinos JR Models
- Santa Fe Railway H&M Society
- Scenic Express
- Schuco
- Shade Tree Books
- Sierra Grande Press
- Signature Press
- SilverLake Images
- Simmons-Boardman Books
- SmallTown USA
- Sono Nis Press
- Sonrisa Publications
- Sooauthor Publishing
- South Platte Press
- Southern Pacific H&T Society
- Steam Powered Video
- Stephan M. Koenig
- Stony Clove & Catskill Mountain Press
- Stonybrook Press
- Sundance Publications
- Sunstar
- T. Lee Publications
- Tahoe Model Works
- Tamiya Models
- Testors
- Texas Zephyr Publishing
- The Crowood Press
- The Garbely Publishing Company
- The Railroad Press
- Timber Times
- TLC Publishing
- Tom Klinger Publishing
- Train Control Systems
- Trix
- Tru-Color Paint
- Trumpeter
- Tuolumne County Historical Society
- Union Pacific Historical Society
- Union Terminal Publications
- University of Nevada Press
- Vallejo Paint
- VTD Rail Publishing
- Weekend Chief Publishing
- West Jersey Chapter NRHS
- Western Reflections
- White River Productions
- Williams by Bachmann
- Wills Kits
- Withers Publishing
- Woodland Scenics
- Xuron Tools
- Zona Tools
- Zvezda