Wooden

Crafty Puzzles Company
Puzzles, brain teasers and 3D jigsaws from a UK company. Time-lapse graphics illustrate the building of puzzles.
http://www.craftypuzzles.com

Mamasoes
Educational puzzles and toys for 2 to 6 year olds. Suggestions for age group applicable to each product.
http://www.mamasoes.com/

Puzzle Box World
Puzzle boxes from around the World including manufacturers in Japan, Vietnam, Morocco and Costa Rica.
http://www.puzzleboxworld.com

Turtle Creek
Puzzle boxes, games and puzzles together with other small wooden items for home and garden.
http://www.puzzleboxguy.com/