Bletchley Park, home of the wartime code-breakers who cracked Nazi Germany's Enigma code and helped turn the tide of World War II, has received a donation of $100,000 from IBM and PGP.

The hi-tech companies offered the cash to help preserve the National Museum of Computing, which lives on the Bletchley Park site. The future of both museum and site have been under threat for some time due to lack of funding. The museum, launched in 2007, features an original Enigma coding machine, as well as a working model of the world's first computer: Colossus.

Earlier this year, academics wrote a letter of protest arguing that the site should be preserved for future generations. At the time the issue caused some controversy on the PC Advisor forums: LastChip felt that PCA readers should band together to sponsor the site, saying "we really must maintain our heritage and Bletchley Park is a worthy contender". But Forum Editor countered: "I don't think it has ever fired the imagination of the general public. I've been there quite a few times, and on each occasion I never saw more than a handful of other visitors."

The Bill and Melinda Gates Foundation declined the opportunity to sponsor the site, but now IBM and PGP have stepped up.