| Researched in depth, not ranked (14), continued |
| Kollmorgen63 | Frameless servo… | | Frameless robot-joint motors fit, but US manufacturing is unconfirmed. |
| Maxon Motor USA64 | Brushed… | Ann Arbor, US | Likely overlaps the maxon US entry already picked; US making unverified. |
| Nabtesco Motion Control, Inc.65 | Precision cycloidal… | US | Robot cycloidal reducers, but no US manufacturing shown. |
| Neugart USA66 | Precision planetary… | US | Robot planetary gearboxes, but US site only assembles and distributes; certificate renewal date unseen. |
| Ondrives.US67 | Precision… | Copiague, US | Certified US gearbox maker for robotics, but no motor manufacturing shown. |
| Onvio LLC68 | Precision planetary… | Salem, US | Robot reducers and wheel motors, but primary manufacturing is in Puebla, Mexico. |
| Wittenstein55 | Planetary… | US | Gearheads and motors fit, but no US address was confirmed. |
| Yaskawa America (Drives & Motion Division)55 | AC servo motors… | Waukegan, US | Servo motors and gearmotors in Illinois, but US manufacturing is unclear. |
| Fit the brief, not researched (13) |
| Glentek, Inc.64 | Designs… | El Segundo, US | No homepage was given, so we could not open its own site. Brief says it makes servo motors in the USA with ISO 9001… |
| Groschopp, Inc.69 | Manufacturer… | Sioux Center | No homepage was given in the brief, so we could not open its own site. Brief says it makes gearmotors, but ISO 9001… |
| iNetic Motion70 | Robotic joint… | | Says it designs and manufactures robotic joint motors and actuators. The pages read give no country or plant location… |
| Island Components Group, Inc.71 | Manufacturer… | US | No homepage was given, so we could not open its own site. Brief says linear servo motors for aerospace; no robotics or… |
| Maxon Precision Motors, Inc.71 | Worldwide… | US | No homepage was given, so we could not open its own site. Brief says DC servo motors mainly for aerospace… |
| Modar Motor72 | | | |
| Moog Inc.73 | Advanced… | US | Brief says it makes actuators and motion control systems. No website was given and we could not open its homepage… |
| Nidec Drive Technology America Corporation74 | KINEX high-torque… | US | Sells KINEX cycloidal reducers for robotics and automation. Site is a sales and support page for a Nidec group company… |
| Oriental Motor USA Corp.55 | Motors and control… | Torrance, US | No homepage was given, so we could not open its own site. Brief says motors and control systems; the brief also flags… |
| Parker Hannifin Corporation73 | Advanced… | US | No homepage was given in the brief and we did not search. Parker’s US status and ISO 9001 are unconfirmed, so we… |
| Rockwell Automation (Allen-Bradley)75 | Allen-Bradley… | Milwaukee, US | Lead says it makes servo motors and motion control, a large vendor. Gearboxes are not mentioned. No homepage was… |
| Span Tech Conveyors69 | Custom… | US | No homepage was given, so we could not open its own site. Brief says DC gearmotors for robotics, but location and ISO… |
| Thomas Magnete (U.S. operations)54 | | US | No homepage was given in the brief, so we did not read its site. The brief says it builds custom BLDC motors with US… |