- A.R.M.
- Able Machine & Welding
- Acheron
- Advantage Rides
- Allan Herschell
- Alltel
- Alpine Slide
- Am Tech
- Aqua World
- Arrow Development, Dynamics
- Barbieri
- Barlison
- Barrango
- Belmonte Christiani
- Bertazzon
- Bisch-Rocco
- Boyles
- Bumper Boats Inc.
- C.W.Parker Amusement Co.
- Camber Entertainment
- Can Am
- Catarzi
- Chance
- Chance/Morgan
- Childres/Hi lite
- Childress
- Cristiani
- Crow Metal Prods.
- Curl
- Custom Rides
- Cutting Edge
- Dartron
- Deggler
- Denco
- Development
- Dinn
- Dixie Land Fun Machines
- Doron
- Electra Motor Sports
- Eli
- Eli Bridge
- Eli-5
- Eyerly
- Eyerly Aircraft
- Excelda-Ohio Co.
- F.L.K.
- F3000
- Fabbri
- Fajume
- Far Fabri
- Farmer Caseville Jetstream
- Fiberglass Interaction
- Flying Dragons
- Formula 2000
- Formula K
- Foster
- Frederekson
- Funni Fright
- Garbrick Manufacturing
- Garbrick's Welding & Machine Works. (Nittany Rides)
- General Electric
- Glenmore Village Mfg.
- Go Forth
- Hampton
- Herschell
- Herschell Spillman
- Hi Lite
- High Roller
- Hofbrau
- Hollingsworth
- Hrubetz
- Huss
- IMTS
- In-Motion
- Inter Fair Holl
- J&J
- J&K
- Johnson
- Kalinski
- Kid Power
- Kiddie Bumper Boats
- Kiddie Rides USA
- Kilinski
- King Amusement Co.
- KMG
- KMMS
- Kramer
- KT Enterprises Ltd.
- Lamkin
- Larson
- Lowell Stapf Amusement Co., Inc.
- Lusse
- Mac
- Mack
- Majestic Mfg.
- Manco
- Mangles
- Mason
- Masters & Murphy Construction
- Max Flight
- Mazur
- Mel Park
- Midway
- Miller
- Minati
- Miner Denver
- Miracle
- Morning Star
- Morgan
- Mulligan
- National Amusement Device
- Natural str.
- Nittany
- O.R.I.
- OTB Int.
- Overland Express
- Owens
- Pacific Waterslide
- Perfect Line
- Philadelphia Toboggan Company
- Pinfari
- Pinto Brothers
- Pirates Unlimited
- Pretzel Amusement Ride Co.
- Pro Parks
- Proslide
- R.E. Enterprize
- Rainbow Bend
- RCP Industries
- RDC
- Reghep Enterprises
- Regher Ent.
- Reverchon
- Rides 4 U
- Rideworks
- Roll Amusements
- Royal Rides
- S A Hampton
- Salem Enterprises, Inc.
- S&S Power
- San Antonio Roller Works
- Sartori
- SBF
- Schaller
- Scooter
- SDC
- Sellner
- Schiff
- Show Me
- Sim Ex
- Sky Coaster
- Smith & Smith
- Sodi Kart
- Soriani & Moser
- Spectrum Sports
- Splasherhorn
- Splashtacular
- Sports Center Mfg.
- Sportsplay Equipment
- SR5
- Standard Kiddie Ride Mfg.Co.
- Sulzbach Aichach
- Sunshine Manufacturing Co.
- Terrapin
- Theel
- Thompson
- Thumberg
- Tivoli
- Triple Quest Inc.
- Universal
- Vekoma SLC
- Venture
- Vertical Reality Ride System
- Visa
- Ward Lo.
- Watkins
- Wattmon
- Watts Tech.
- Webber
- Wet Willie
- White Water
- White Water West
- Winnie Ride Co.
- Wisdom
- WMI
- Wonderland Amusement
- Woodkie
- World Famous
- Zamperla
- Zierer
- Zuchini