- Rubik Online
 - Official Rubik's Cube website. - Bits and Pieces
- Collection of jigsaw and mechanical puzzles, secret puzzle boxes, mechanical banks, kaleidoscopes, etc.
- Briarpatch
- Makers of games and puzzles for children.
- Kadon Enterprises, Inc.
- Games and puzzles like Pentominoes, Penrose Tiles, Tessellations, and other abstract strategy games.
- Puzzability
- Writes puzzles for adults or kids, print or electronic media, general-interest or made-to-order.
- Maze Creator
- Offering software to create printable mazes and their solutions.
- Lobstersoft
- Offers free downloads of puzzle and board shareware games for all ages.
- Livewire Puzzles
- A mail order store specialising in wire disentanglement puzzles. We sell puzzles that are both challenging and fun.
- Enchanted Mind
- Puzzles, humour, and inspiration to enhance creativity.
- Meffert's Puzzles
- Offers assembly and keychain puzzles, jigsaws, and more
- Cleverwood Manufacturing Company
- Offers puzzle boxes, wooden neckties, mechanical puzzles, and more.
- Tessellations
- Maker of Puzzellations puzzles (with foam rubber tiles), posters, and kaleidoscopes inspired by M.C. Escher, as well as mathematicians like Penrose and Mandelbrot.
- Gems 3D Puzzle Game
- 3D logic game for Windows.
- Mountain Vista Software
- Home of Fathom It!, a solitaire adaptation of the classic pencil-and-paper game of battleships, for logical deduction puzzle buffs.
- Everett Kaser Software (3)
- Bedlam Cube
- Addictive 3D puzzle cube which has 19,186 different solutions.
- Binary Arts
- Features puzzles of the day, a guide to puzzles and games on the Net, and interactive games.
- L.A.Larsen A/S
- Specialise in the design and manufacture of puzzles.
- PuzzArt
- Offers handcrafted wooden stand-up puzzles.
- uPuzzles.com
- Subscription service to puzzles and crosswords.
- 3 Trolls Games & Puzzles
- Games and puzzles by mail all over the U.S. and Canada.
- Arcanum Computing
- Publisher of computer based tile games and more.
- Imagination Project
- Innovative puzzles and products, including officially licensed M.C. Escher tessalations.
- CalmPlex, The
- Mechanical tessellated puzzle, an 8x8 chessboard a 4x4x4 cube.
- Puzzlecraft
- Offers 3D handcrafted puzzles in hardwoods, as well as puzzle books.
- Frost Hollow Puzzles
- Specialises in handcrafted jigsaw and wooden bench personalised puzzles.
- Rex Games, Inc.
- Games that teach the mind to think. No batteries required, works on brain cells! the creator of Tangoes, Word Trek and Two Smart Games.
- Kopiev, Olga and Oleg
- Shareware puzzle games for Windows.
- SpaceCubes
- 3D puzzle challenges imagination, dexterity. Order games sets online, browse animated VRML hints, solutions.
- Serious Puzzles
- Retailer featuring brain teasers, puzzle boxes, tavern puzzles, metal puzzles, jigsaw puzzles, and classic wooden puzzles for all ages.
- Buy Sudoku Puzzles
- Online store selling board and electronic handheld sudoku games. Also carries books and offers free online sudoku puzzles and software.
- Mindgames.com
- MindTrap Games
- Containing mysteries, conundrums, trick questions, and visual puzzles, including a murder-mystery jigsaw.
- Puzzle World
- Brand name puzzles and games for the whole family, including jigsaw puzzles, brainteasers, educational games, and more.
- Gaya
- Specialises in designing and developing wooden games and puzzles.
- Plan 10 Software
- The home of MazeWorks, a maze race game and maze generation tool. Create mazes, print mazes, race the computer and output mazes as Doom levels.
- One Gram Software
- Maze and puzzle shareware for Windows.
- Stumps Puzzles
- Offers cherry hardwood 3D puzzles.
- Brilliant Puzzles
- Features a huge selection of wooden puzzles, brain teasers, metal puzzles, secret puzzle boxes, and wooden games.
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