SPAMfighter is a Danish computer security software company, mostly known for their anti-spam filter, also calle SPAMfighter. The company was founded in 2003 by Henrik Sørensen and Martin Thorborg (Founders of the internet portal Jubii), together with Daniel Hjortholt and Martin Dyring. The company also sells an anti-virus and an anti-spyware program. The headquarters are located in Copenhagen.