O&O Software GmbH was established in 1997 in Berlin, Germany by Oliver Falkenthal and Olaf Kehrer. The idea for the name "O&O" originated back in 1991 in the form of O&O Systemtechnik GbR, a company offering software specifically for students whilst the two founders were still studying. The name "O&O" came about spontaneously, as both founders first names begin with the letter “O”. In 1998, on the 10th February to be exact, O&O Defrag V1.0 was released, and the company that you see today was born.

Leading manufacturer of system tools

Over the course of the past few years, O&O has become a synonym for "Tools for Windows" and with customers and partners in over 140 countries, counts today amongst the leading manufacturers of systems tools for the Windows operating system. As a Microsoft Gold Partner (the highest partner level) we are in constant touch with Microsoft and stand at the very forefront of new Windows technology. We are one of the very few companies worldwide who can license their products with Microsoft-based technology, thus being able to provide a crucial added value to the customer.

That is why 76% of the companies listed in DAX use O&O products, as well as 43% of those companies listed in the "Forbes 100 International". Countless press awards confirm our passion to our customer. Our O&O Defrag product, for example, has over the past few years been voted Editor’s Choice time and time again, by both the National and International press, and has an excellent reputation, both with our customers and IT specialists alike.

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