Investment team

Partners

Aristos Doxiadis

Aristos is an economist and sociologist, who enjoys evaluating and formulating new business models.

Aristos Doxiadis

Aristos is an economist and sociologist, who enjoys evaluating and formulating new business models.

Contact

He can be reached at
[email protected]

Profile

He is a pioneer of private equity in Greece. In his 23 years as investment manager, he has invested in technology startups (with Openfund), and in growth companies across a wide range of industries, from table grapes and health clubs to book logistics and banking software (with Commercial Capital and Eikon Capital). He has participated in the boards of about fifteen companies and taken an active executive role in some of those.

Aristos is also a well-known analyst of the Greek economy and society, and has extensive experience in management consulting and in public policy advice. He holds a BA in Social Studies (Harvard), and an MSc in Economics (Birkbeck College, London).

Alex Eleftheriadis

Alex is an engineering academic and inventor turned entrepreneur.

Alex Eleftheriadis

Alex is an engineering academic and inventor turned entrepreneur.

Contact

He can be reached at
[email protected]

Profile

He is the co-founder and Chief Scientist of Vidyo, an award-winning, venture-backed US-based company developing video communication software products and services (vidyo.com & vidyo.io).  Vidyo has been awarded more than 190 patents worldwide, and connects millions of users around the world through its secure, scalable, cloud-based technology.  Prior to Vidyo he was an Associate Professor of Electrical Engineering at Columbia University.  He has also held an appointment as an Associate Professor at the University of Athens, in the Department of Informatics and Telecommunications.

He also Co-Chairs the Real-Time Communications Subgroup of the Alliance for Open Media, which just completed the design of a next-generation video codec for the Internet called AV1.

Alex has more than 100 publications, holds more than 140 patents internationally, and his inventions are used in several video coding and digital television standards, including AVC and HEVC.  His awards include a WebRTC Pioneer Award (2014), a Marie Curie Chair from the European Commission (2007), and the ACM Multimedia Open Source Software Award (2004.  He received his Ph.D. in Electrical Engineering from Columbia University in 1995 and his Diploma in Electrical Engineering from the National Technical University of Athens, Greece, in 1990.

He has been an active angel investor in Greece and the US.

Marco Veremis

Marco is an accomplished technology entrepreneur and active angel investor. 

Marco Veremis

Marco is an accomplished technology entrepreneur and active angel investor. 

Contact

He can be reached at
[email protected]

Profile

He co-founded Upstream with Alex Vratskides in 2002 and was its CEO until 2017. Upstream has built a mobile commerce platform operating in 42 emerging markets providing payment capabilities to 1.3b unbanked people and localized advertising reaching over 2b consumers. During his tenure the company reached revenues of Eur 230m and a team of over 350 people. In 2014 british private equity fund Actis acquired a majority stake in the business and Marco remains a shareholder and holds the role of board chairman.

Marco is also a shareholder of Persado which started as an R&D unit within Upstream and was spun out as a stand alone company in 2012. Persado, under the leadership of Alex Vratskides has become a leader and innovator in AI generated marketing language globally.

He is an early investor in numerous technology companies including Workable, Hellas Direct and Softomotive (acquired by Microsoft).

Before Upstream he was a Marketing strategist at  McCann-Erickson (IPG), Grey (WPP) and DDB (Omnicom) in their London offices.

Marco is President of Junior Achievement Greece and board member at Endeavor, the Hellenic Federation of Enterprises (SEV), the Foundation for Economic and Industrial Research (IOBE), and diaNEOsis think tank. He received the EY Greek “Entrepreneur of the Year” award, in 2013.

He holds an MA from Warwick University and an MPhil from Oxford University.

Team (full time)

Demetris Iacovides

Dimitris focuses on evaluating potential investment opportunities and oversees the Fund's reporting requirements

Demetris Iacovides

Principal
Dimitris focuses on evaluating potential investment opportunities and oversees the Fund's reporting requirements

Contact

He can be reached at
[email protected]

Profile

Dimitris joined Big Pi as an Investment Associate in December 2018 and was promoted to Principal in January 2021. He focuses on evaluating potential investment opportunities and oversees the Fund’s reporting requirements. His specialty and interest lie in the healthcare / pharma space.
Prior to joining big Dimitris gained 4 years of professional experience in Corporate Finance (PwC UK and Deloitte Greece) and 2 years in the pharmaceutical industry (Genesis Pharma Greece).
He holds a BEng in Chemical Engineering (UCL), MSc in Biotechnology (Imperial College), MSc in Social Sciences (LSE), and MSc in Biotech Management from Grenoble Business School.

Maria Mavronasou

Maria is an operations & compliance specialist

Maria Mavronasou

Operations Manager & Compliance Officer
Maria is an operations & compliance specialist

Contact

She can be reached at
[email protected]

Profile

Maria joined Big Pi in 2018 and she is currently the Operations & Compliance Officer.

Before joining Big Pi, Maria developed a wide breadth of operational, regulatory and compliance experience working in the Finance and Shipping industries. She started her career in the Exports department at Corus Kalpinis Simos. She then moved to The Royal Bank of Scotland where the bulk of her professional experience to date was gained. Originally joining as a Credit Operations Specialist, she was promoted internally to Deputy Compliance Officer and, ultimately, Head of Business Operational Risk.

She studied law at both the London Metropolitan University (LL.B.) and the University of Southampton (LL.M.). She also holds an M.Sc. in Applied Economics from the Athens University of Economics and Business

Venture Partners

Achilleas Gravanis

Achilleas is Professor of Pharmacology at the Medical School of the University of Crete

Achilleas Gravanis

Venture Partner
Achilleas is Professor of Pharmacology at the Medical School of the University of Crete

Contact

He can be reached at
[email protected]

Profile

Achilleas Gravanis, Professor of Pharmacology Medical School University of Crete. Researcher Institute of Molecular Biology & Biotechnology FORTH, Affiliated Research Professor Center of Drug Discovery Northeastern University Boston. He served as Member and Chairman of many research committees of the European Union, as member of the Fellowships Committee Federation European Biochemical Societies (FEBS), as chairman of Life Sciences Committee,  National Council of Research & Τechnology, as member of the Board of Hellenic Foundation of Research & Innovation. Co-founder of biotechnology spin-offs Bionature Ltd and ReNeuroCell Ltd. Affiliated Principal investigator, Emulate SA, a spinoff of Harvard University. He has published 150 papers in PubMed (h-Index:48, Google Scholar), many in important journals (Nature Immunology, Nature Regenerative Medicine, Nature Molecular Psychiatry, PNAS, PLoS Biology, Biomaterials, Journal Medicinal Chemistry). His research group is developing synthetic compounds, agonists of neurotrophin receptors, with neuroprotective and neurogenic properties and potential applications in therapeutics of neurodegenerative diseases. Additionally, his group is focusing on 3D microscaffold bioengineering and neural stem cell technologies to develop neuroimplants for spinal cord injury and neurobiosensors for drug screening.

Big Pi team

Bruno Bolsens

Bruno Bolsens

Bruno is an Athens based technical founder and vehicle robotics expert.

When he was asked to take up a teaching position at Leuven University after his PhD, Bruno chose instead to become co-founder and CTO of his own Belgian startup SNOX. After acquisition of SNOX by Grenzebach, he stayed on as CTO to spread the AGV and robotics technology within the Grenzebach Group. In this position he developed award-winning new warehouse robots.

He then moved to an independent position as freelance expert. This brought him in close cooperation with technology companies such as Swisslog, KUKA and RoboCoaster. The last few years he has been intensely involved with Tesla in the USA for the factories in California and Nevada, in the field of his expertise. His regular presence in the Bay Area also introduced him to many diaspora Greeks, founders/investors/tech employees, many of which are looking to establish some link between the Bay Area and the Greek homeland.

He can be reached at [email protected].

Aristos Doxiadis

Aristos Doxiadis

Aristos is an economist and sociologist, who enjoys evaluating and formulating new business models.

He is a pioneer of private equity in Greece. In his  23 years as investment manager, he has invested in technology startups (with Openfund), and in growth companies across a wide range of industries, from table grapes and health clubs to book logistics and banking software (with Commercial Capital and Eikon Capital)He has participated in the boards of about fifteen companies and taken an active executive role in some of those.

Aristos is also a well-known analyst of Greek economy and society, and has extensive experience in management consulting and in public policy advice.  He holds a BA in Social Studies (Harvard), and an MSc in Economics (Birkbeck College, London).

He can be reached at [email protected].

Alex Eleftheriadis

Alex Eleftheriadis

Alex is an engineering academic and inventor turned entrepreneur.

He is the co-founder and Chief Scientist of Vidyo, an award-winning, venture-backed US-based company developing video communication software products and services (vidyo.com & vidyo.io).  Vidyo has been awarded more than 180 patents worldwide, and connects millions of users around the world through its secure, scalable, cloud-based technology.  Prior to Vidyo he was an Associate Professor of Electrical Engineering at Columbia University.  He has also held an appointment as an Associate Professor at the University of Athens, in the Department of Informatics and Telecommunications. 

He also Co-Chairs the Real-Time Communications Subgroup of the Alliance for Open Media, which just completed the design of a next-generation video codec for the Internet. 

Alex has more than 100 publications, holds more than 140 patents internationally, and his inventions are used in several video coding and digital television standards, as well as Blu-ray DVD technology.  His awards include a WebRTC Pioneer Award (2014), a Marie Curie Chair from the European Commission (2007), and the ACM Multimedia Open Source Software Award (2004.  He received his Ph.D. in Electrical Engineering from Columbia University in 1995 and his Diploma in Electrical Engineering from the National Technical University of Athens, Greece, in 1990.

He has been an active angel investor in Greece and the US.

He can be reached at [email protected].

Georgios Kasselakis

Georgios Kasselakis

Georgios is a technology enthusiast and software developer.

He has filled positions in a number of technology-related activities, ranging from computer repairs to software architect. Still as a student, he applied his bachelor thesis into a startup pursuing data feed transformation and failed. At the same time, he adopted and organized the Open Coffee meetings in Thessaloniki, forming a common ground for the entrepreneurial and technology communities there. In 2009, he co-founded Openfund before moving on to Big Pi. He focuses on technology due diligence and business development of portfolio companies.

He holds a BSc in Computer Science from the Aristotle University of Thessaloniki.

He can be reached at [email protected].

Marco Veremis

Marco Veremis

Marco is an experienced technology entrepreneur and active angel investor. 

He co-founded Upstream with Alex Vratskides in 2002 and was its CEO until 2017. Upstream has built a mobile commerce platform operating in 42 emerging markets providing payment capabilities to 1.3b unbanked people and localized advertising reaching over 2b consumers. During his tenure the company reached revenues of Eur 230m and a team of over 350 people. In 2014 british private equity fund Actis acquired a majority stake in the business and Marco remains a shareholder and holds the role of board chairman. 

Marco is also a shareholder and board member of Persado which started as an R&D unit within Upstream and was spun out as a stand alone company in 2012. Persado, under the leadership of Alex Vratskides has become a leader and innovator in AI generated marketing language globally. 

He is an early investor in numerous technology companies including Workable, Hellas Direct and Intellibox. 

Before Upstream he had the role of Marketing strategist at  McCann-Erickson (IPG), Grey (WPP) and DDB (Omnicom) in their London offices. 

Marco is a board member at Endeavor and the Foundation for Economic and Industrial Research (IOBE), and diaNEOsis think tank. He also sits in the start-up and export committees of the Hellenic Federation of Enterprises (SEV) and received the EY Greek “Entrepreneur of the Year” award, in 2013.

He holds an MA from Warwick University and an MPhil from Oxford University.

He can be reached at [email protected].