- Areyougame
- BePuzzled
- Buffalo Games
- Cobble Hill
- Cobble Hill Puzzle Company
- Crocodile Creek
- Educa
- Eurographics
- Flash Popup
- Hart Puzzles
- Kaplan Early Learning
- MasterPieces Puzzles
- New York Puzzle Company
- NMR Distribution
- Paladone Products Ltd.
- Pomegranate Communications, Inc.
- Professor Puzzle
- Quokka
- Shantou South Toys Factory
- TDC Games
- TF Publishing Paper Goods
- Trefl
- University Games
- Willow Creek Press