Root Neal Manufacturers
| A.W.Cash | Dixon | Jergens | Powell |
| ASCO | Dodge | John Crane | Precision Pulley |
| Acco | Dodge Inertia Dynamics | Krack | Price |
| Alco | Dorris | Kunkle | Prosser |
| Alemite | Drive All | LaRoche | Punchlok |
| Alfa Laval | Durabla | L.C. Thomsen | Ranco |
| Allied Locke | Ebara | Leeson | Reelcraft® |
| Allied Signal | Essex | Legris | Reeves |
| Alling-Lander | FMC- John Bean | Lieman | Regal-Beloit |
| American Autogard | Fairview | Little Giant | Reliance |
| Anderson Metals | Falk | Loadmaster | Reliance Electric |
| Apollo | Filing | Lone Drive | Renold |
| Aquadyne | Flow Manager | Lonedrive | Revere |
| Armstrong | Flux | Lonergan | Rex |
| Aro | Formsprag | Lovejoy | Rexnord |
| B/W Electrode | Freon | Lube Devices | Rice Lake |
| Baldor | Fulflo | Lubesite | Ridgid |
| Bando | G & L | Lyon Metal | Rigid |
| Barnes | Gadren | MP | Ritchie Engineering |
| Benshaw | General | MSI | Robinair |
| Berkley | Genetron | MTH Pumps | Rockford-Eclipse |
| Bijur | Gits | Malco | Roto Cone |
| Boston Gear | Globe | Marlow | Ruthman |
| Brown & Sharpe | Goulds | Marsh | SM Cyclo |
| Burks | Graco | Marshalltown | Salter |
| C.H.& E. | Grant Gear | Martin Sprocket | Screw Conveyor |
| Caldwell | Gray | Maryland Wire Belt | Seepex |
| Cambridge Wire | Graymills | Masstron | Serfilco |
| Carlisle | Grundfos | Mettler | Sherman |
| Cloth | Gusher | Milford/Sandvik | Speed Selector |
| Cash | HBM | Milwaukee | Spirax Sarco |
| Chatillon | Hamilton | Modine | Sporlan |
| Chem-Tech | Hamilton Caster | Moline | Sprayon-Krylon |
| Coilhose | Hammond | Morse | Sumitomo |
| Comfort Aire | Harrington | Mulhern | Standard |
| Conbraco | Hautz | NB | Stewart Warner |
| Continental | Hayes | Nason | Sumitomo |
| Cornell | Hayward | Nationwide | Sysdyne |
| Crane Deming | Hedland | New London | T. B. Woods |
| Crane Pumps & Systems | Honeywell | Newage | Taylor |
| Crown | Hub City | Nu-Calgon | Tecumseh |
| Curtis | Imperial | Oberdorfer | Thermo Scientific/Barnant |
| Daido | Indco | Ohaus | UST |
| Dalton | Ingersoll-Rand® | Old Forge | Viking |
| Dalton Gear | InScale | Oster | Weigh-Tronix |
| David Round | Intercomp | Overly Hautz | Weinman |
| De-Sta-Co | Irwin | Pacer | World Wide Electric |
| Detecto | Ishida Cambridge | Pelouze | Wright |
| Diamond | Iwaki | Penberthy | Zoeller |
| Digi | Jabsco | Perfection Gear | Zurn |
| Dillon | Jayco | Pioneer |