Marco is a founding partner at Big Pi Ventures, an Athens based VC founded in 2018, investing in exceptional teams who want to become global tech leaders. Big Pi is a multi-stage tech fund managing over 250m Euros through a pre-seed and seed fund as well as a newly launched growth fund, the first of its kind in the region.

Prior to Big Pi, Marco co-founded Upstream with Alex Vratskides in 2002, and was its CEO until 2017. During his tenure, Upstream reached revenues of €230m and a team of +400 employees, until Actis acquired a majority in 2014, making it the first nine figure tech exit in Greece. Marco is also a shareholder and co-founder of Persado, which started as an R&D unit within Upstream, and was spun out as a stand alone company in 2012, with Bain Capital Ventures as lead investors. Persado, under the leadership of Alex Vratskides has become a leader and innovator in AI-generated marketing language globally with investors including Goldman Sachs and Amex Ventures.

He is an early investor in numerous technology companies including Workable, Hellas Direct, SoftOne,Softomotive (acquired by Microsoft),Accusonus (acquired by Meta) and Flexfin (acquired by Alpha Bank). Marco is a member of the executive committee and board of the Hellenic Federation of Enterprises (SEV), Endeavor, the Foundation for Economic and Industrial Research (IOBE), Junior Achievement and diaNEOsis think tank. Marco received the EY Greek “Entrepreneur of the Year” award, in 2013, and holds an MA from Warwick University and an MPhil from Oxford University.