Forensic Signature Verification Competition 4NSigComp2010 - Detection of Simulated and Disguised Signatures. - Marcus Liwicki; C. Elisa van den Heuvel; Bryan Found; Muhammad Imran Malik (ICFHR, 2010)

Signature Verification Competition for Online and Offline Skilled Forgeries (SigComp2011). - Marcus Liwicki; Muhammad Imran Malik; C. Elisa van den Heuvel; Xiaohong Chen 001; Charles E. H. Berger; Reinoud Stoel; Michael Blumenstein; Bryan Found (ICDAR, 2011)

ICFHR 2012 Competition on Automatic Forensic Signature Verification (4NsigComp 2012). - Marcus Liwicki; Muhammad Imran Malik; Linda Alewijnse; C. Elisa van den Heuvel; Bryan Found (ICFHR, 2012)

ICDAR 2013 Competitions on Signature Verification and Writer Identification for On- and Offline Skilled Forgeries (SigWiComp 2013). - Muhammad Imran Malik; Marcus Liwicki; Linda Alewijnse; Wataru Ohyama; Michael Blumenstein; Bryan Found (ICDAR, 2013)