Meet the team

The team of Conferre SA has been working together since 2001 organizing congresses and all types of events, social and scientific, specializing in the needs of their administration and ensuring their success.

Our philosophy is to provide services of the highest possible level to all our clients....

Because we know that whatever you do is worth doing it well.

Lina Siamopoulou

Lina Siamopoulou was born in Athens, on March 14th 1978.

She studied French Language and Literature, at the School of Philosophy of the National & Kapodistrian University of Athens. She has also attended the E- Learning Educational Programme “Public Relations and Administration” run by the National & Kapodistrian University of Athens.

During her studies she worked as a volunteer in the Athens Medical Society and then for a 2-year period at a Professional Congress Organizing Bureau in Athens.

She returned to Ioannina in 2001 and established the company Conferre SA, specializing in the organization of meetings, scientific events and congresses.

She has been active in the congress management industry for 19 years.

Lina Siamopoulou and her team of professionals manage numerous congresses around Greece.


Elisavet Kosta

Elsa Kosta was born in Ioannina on March 10th 1987.

In 2009 she finished her Bachelor studies in the Faculty of Information Science & Informatics at Department of Archives, Library Science and Museology, of the Ionian University.

During her studies she worked in the library and Information Center of the University of Ioannina. She has also worked as a volunteer in Zosimaia Public Library of Ioannina.

She joined Conferre SA team in January 2010.

Since 2013 to-dateshe is attending a postgraduate programme (M.A.) in Cultural Organizations Management at Hellenic Open University.

She speaks English fluently, she is a beginner in Italian Language and she likes reading and travelling.


Marilena Dounavi

Marilena Dounavi was born in Athens, on November 15th 1986.

She studied Computer Science at the Department of Computer Sciences of the University of Ioannina where she got her Master degree in Computer Engineering & Informatics, as well.

Being a lover of the English language she started working during her studies as an English teacher in a private school for a 2-year period and also worked voluntarily at the position of the secretarial support for the Greek Tourism Organisation. Then, she focused more on the field of informatics and worked in a research project of the University of Ioannina, assisted in some labs of the same University and then worked for a web development company where she started creating mainly websites.

One year before joining the company Conferre SA in September 2015, she presented a scientific paper of hers in an International Conference (DTIS 2014) and in May 2015 she took part in the organization of a scientific conference held by the University of Ioannina (PACET 2015).

Marilena speaks English fluently, she is a beginner in French Language and she is interested in philosophy and volunteerism.


Arieta Maidatsi

Arieta Maidatsi was born in Ioannina in 1985. She has studied History at the Ionian University of Corfu and continued her studies at the Pedagogic Department of Nursery School of Ioannina University and graduated in 2015. At the same time she attended history courses through e-learning from Harvard and Wellesley College. She has worked at the Management Agency of the National Park of Tzoumerka, Peristeri & Arachthos Gorge as a Historian. She did her internship at Arsakeio Kindergarten of Ioannina and also was a volunteer at the Zosimaia Central Public Library.

Arieta is very important for Conferre Team and when she is in charge of a project, she knows how to inspire and communicate with her colleagues and partners!


Aimilia Rentzou

Emi Rentzou was born in Ioannina, on November 14th 1981.

After she graduated High School (1999), she studied Business Administration and Management degree at the Technological Institute of Athens (2001-2005).

Emi brings over 8 years of travel agency experience. Prior to joining Conferre S.A., she worked as a Travel agent and booking manager. Now, she is responsible on ticketing, hotel reservations and trasportation.

She speaks English and she likes travelling and sports.


Vicky Kosta

Vicky Kosta was born in Ioannina, on July 10th 1985.
She studied Byzantine and Modern Greek Studies at the School of Philosophy of the University of Ioannina. She has also attended the E- Learning Educational Programme «Police and Judicial reportage», run by National & Kapodistrian University of Athens.

During her studies, she worked as a columnist in a lifestyle magazine, and then for a 3-year period at a local television station, as a reporter, newscaster and entertainment broadcast presenter.

She also used to write responses from Ioannina, to site «».

Since 2009, she works as an editor, in the daily newspaper «Proina Nea» and at the local television station «Ioannina TV».

She is working with Conferre SA as a Press Officer and a Social Media Intern responsible to manage our client’s social media channels, including Facebook, LinkedIn, Twitter and YouTube, from strategy to execution and content creation.

She speaks English and French.


Konstantinos Bletsos

Konstantinos Bletsos was born in Ioannina, on July 18th 1978. After he graduated High School (1996), he studied Accounting at the Accounting and Finance Department of the University of Western Macedonia (1998-2002).

Konstantinos brings over 12 years in accounting with much experience from small to medium sized companies. Moreover, he has much inside in financial reporting, tax policies and warehouse logistics. Now, he is focusing more on accounting control and audit of conferences. He acknowledges the great importance of continuing learning and having a self improvement mindset has participated in a lot of accounting seminars and projects like: “Adaptability of small-medium sized Enterprises in Tourism and local products in the province of Epirus”.

He speaks English and he is interested in sports, travelling and new technology.


Nikolaos Goulas

He studied at the Technological Educational Institute of Athens - Department of Informatics.

He works with Conferre SA for the last 10 years supervising and managing the Audio Visual support of Events and exhibitions and specializing on the System Analysis and design, Application design, Database Design, Graphic and multimedia applications.

Christer Vaitsis

Christer Vaitsis was born in Stockholm, Sweden on May 25th 1978.

He studied Computer and Systems Sciences at the Department of Computer and Systems Sciences, DSV of Stockholm University, Sweden (1998-2003) and received his Master of Science (MS) in 2003.

Christer brings over 14 years of software and web development experience. Prior to joining Conferre SA, he worked on development of software for banking systems and solutions.

He works with Conferre SA since 2008 responsible for the development and support of all web development projects (e.g. conference and events websites, online applications and services).