Web Sudoku

Web Sudoku is a popular online platform offering billions of free Sudoku puzzles across various difficulty levels.

Gaming
Active
Tel Aviv, Israel Founded 2005
Website ↗
Last updated 2026-08-22
Total raised
Stage
Founded
2005
Headcount
HQ
Tel Aviv, Israel
Sector
Gaming

About

Web Sudoku, launched in June 2005 by Gideon Greenspan and Rachel Lee, rapidly became a leading online Sudoku website. It offers billions of free Sudoku puzzles with difficulty levels from Easy to Evil, accessible on all browsers, tablets, and phones. The company also provides a premium downloadable version, Web Sudoku Deluxe, for Windows and Mac, offering offline play, more variations, and additional features. Additionally, Web Sudoku offers syndication services for newspapers, magazines, and other websites. The company is based in Israel and its website runs in multiple languages including English, Spanish, German, and French.

Q&A

What is Web Sudoku's primary business?
Web Sudoku is a popular online platform offering billions of free Sudoku puzzles across various difficulty levels. It also provides a premium downloadable version and syndication services for other publications.
When was Web Sudoku founded?
Web Sudoku was founded in June 2005.
Who are the founders of Web Sudoku?
Web Sudoku was co-founded by Dr. Gideon Greenspan, who also serves as CEO, and Ms. Rachel Lee.
Where is Web Sudoku headquartered?
Web Sudoku is headquartered in Tel Aviv, Israel.
What sector does Web Sudoku operate in?
Web Sudoku operates primarily in the Gaming sector, with classifications also in Digital Media, Entertainment, and Online Entertainment.
What are the different offerings from Web Sudoku?
Web Sudoku offers free online Sudoku puzzles, a premium downloadable version called Web Sudoku Deluxe for offline play, and syndication services for newspapers and websites.
In which languages is the Web Sudoku website available?
The Web Sudoku website runs in multiple languages, including English, Spanish, German, and French.

Team · 2

Dr. Gideon Greenspan
Founder · CEO & Co-Founder
Ms. Rachel Lee
Founder · Co-Founder

Sectors & technology

Primary sector
Gaming
Target customers
Business model
B2C
Full data — links, identifiers, deals & radar signals (jobs, patents, research, more)

External links

Websitewebsudoku.com

Identifiers & details

Founded2005