Cengiz set up FreeMedic PLC in 1993 which he grew over 25 years and is now known as UCL Business PLC, one of the most prolific and successful technology groups in the UK serving UCL and its associated partner hospitals. Over those years Cengiz was directly involved in many licenses and spinouts including PolyMASC Pharmaceuticals PLC, one of the first university spinouts to float on the London AIM in 1995, Medic to Medic Ltd which was sold to Informa PLC in 2005 and Stanmore Implants Wordwide Limited which was acquired by Abingworth and MDY Healthcare in February 2008. More recently UCLB has been at the vanguard of creating the most promising cancer and gene therapy biotechs in the UK including three.