Comment by dugidugout

I'll add Oreck to the list! Their commercial vacs [0] are robust (the design is dead simple) and overall a refreshing packaging in a bizzaro land where lights and sensors are prioritized over weight and profile! Although I did hear they have fallen from prestige as result from an international buyout some-time ago. Leaving this here for the chance someone can provide an account! Mine from the mid 2000s is still a beast!

[0]: https://oreck.com/collections/commercial-vacuums