https://twitter.com/uberrimedildos Has worked multiples with SheVibe to do really questionable things, such as steal a design from a defunct shop "if they return we'd happily credit/pay" and then design an extremely sexualised and offensive trans fem toy. Probably some other stuff I'm not aware of, but these two seem to share the same mindset to keep doing stuff like this.
Uberrime
Bad Dragon
https://twitter.com/bad_dragon Extremely long problematic history from things like morals to things like terrible QA, unsafe toys and customer service and so much false advertising.
HodgePodgeEntourage
https://hodge-podge-entourage.com/ Had several issues in the past with handling communication, feedback on QA and safety practices. I haven't followed them since those issues so no idea how things have changed. People otherwise seem happy with their work.
Moon Fox Toys
https://twitter.com/MoonFoxToys Overall toxic interactions with community, issues with QA and showing real pours at the start - they only showed 3D renders. Just, not really great track record.
Dread The Empire