| 2023-2024 | UNECE WPLA Bureau Member; |
| 2019-2021 | UNECE WPLAVice Chair; |
| 2001 - 2021 | Bureau member of the UNECE/Working Party on Land Administration (WPLA); |
| 2019 - | Honorary FIG President; |
| 2015 - 2018 | Chair of the International Professional Bodies Cluster of GLTN; |
| 2015 - 2018 | Member of the International Advisory Board of the Global Land Tool Network (GLTN); |
| 2015 - 2018 | President of FIG; |
| 2011 - 2014 | FIG Vice President and Chair of the FIG Task Force on Property and Housing; |
| 2007 - 2010 | Member of the FIG Councilfor 2 periods as ACCO representative; |
| 2006 - 2010 | Chair of FIG Commission 3 'Spatial Information Management'; |
| 2004 - 2006 | Vice chair of FIG Commission 3'Spatial Information Management'; |
| 2002 - 2006 | Chair of Working Group 3.3 "Spatial Information Management - State of the Art" of FIG Commission 3; |
| 1998 - 2002 | Chair of the Working Group 3.1 "Spatial Information Management - Technical Aspects" of FIG Commission 3; |
| 1994 - 1998 | Member of the Working Group 7.1 1 of FIG Commission 7 Cadaster and Land Management; |
Since 2009 she sporadically cooperates as an independent expert with the World Bank, for the compilation of research studies in the field of cadaster, land administration and land management in various UNECE and ECA countries such as Kyrgyzstan, North Macedonia, Greece and Albania.
Through the above mentioned activity she has organized a large number of focused international workshops (6 of them in Greece in 2003, 2004, 2007, 2012, 2016, 2018) and has accomplished international research and has published several UN/FIG publications. She has also participated in land administration review missions in UNECE countries as an independent expert.
She has lectured in more than 15 national and international training seminars for engineers in Geoinformatics and especially in the fields of cadaster, spatial data infrastructures, land administration and land management, property valuation, GIS, photogrammetry, and informal settlements. In five of those she was the scientific responsible and coordinator. She has published more than 120 peer reviewed publications in conference proceedings or scientific journals, as well as another 118 oral presentations in scientific conferences or papers and editorials in professional journals. She has been an invited speaker in about 40 and a keynote speaker in 17 international conferences.
She serves as a reviewer in various scientific international conferences and journals (e.g., Journal of Computers, Environment and Urban Systems (CEUS); Surveying and Land Information Sciences (SaLIS); Nordic Journal of Surveying and Real Estate Research; Survey Review; Land Use Policy) and she is member of the editorial board of the "Survey Review" scientific journal. She was responsible for the organization of the Peer Review Process for the papers submitted in FIG conferences, and she acted as chief editor for the 2008 and 2009 conferences.
As the President of the International Federation of Surveyors, in 2015, she has signed a MoU between FIG and the World Bank http://www.worldbank.org/ and initiated a joint international research on Real Estate Markets, and in December 2017 she signed a MoU between FIG and the International Real Estate Federation FIABCI http://www.fiabci.org/ and initiated a joint research in Formalizing Real Estate Markets.
She participated in more than 200 international and local conferences, such as of CIPA Heritage documentation http://cipa.icomos.org/; FIG www.fig.net; ISPRS http://www.isprs.org/; UNECEWPLA https://www.unece.org/housing/working-party.html; Hellas GIs http://www.hellasgi.gr/; HARSE http://www.psdatm.gr/; UNECECHLM https://www.unece.org/housing.html; the World Bank Land and Poverty conferences http://www.worldbank.org/en/events/2017/08/07/land-and-poverty-conference-2018-land-governance-in-an-interconnected-world; TCG http://portal.tee.gr/portal/page/portal/TEE/TCG; etc.
She has organized more than 50 international conferences/workshops.
She speaks Greek, English (level: Proficiency in English, Cambridge) and German (level: Mittelstufe, Goethe Institut).