- Bruns
- Craighill
- Creative Crafthouse
- Escape Welt
- Eureka!
- Felix Ure
- Hanayama
- Idventure
- Infinite Loop Games
- Inside3
- Jean Claude Constantin
- Karakuri
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- NKD
- Pelikan Puzzles
- Puzzle Michèle Wilson
- Puzzlocks
- Rademic
- Siebenstein-Spiele
- Transylvanyart
- Two Brass Monkeys
- Vinco
- Vladimir Krasnoukhov
- V-cube
- Yavuz Demirhan
- Yuu Asaka
