SPAMfighter, based in Denmark, was founded and is still owned by Henrik Sørensen, Martin Thorborg and Martin Dyring. The SPAMfighter Team is located in such diverse places as Denmark, USA, Canada and Russia. They came up with the idea for SPAMfighter after their mail server died at an ISP they owned and swore revenge. After they sold their ISP, they decided the time was right to take that revenge in the form of a spam fighting utility, including offering a free version.