• "ESPAS: Near-Earth Space Data Infrastructure for e-Science", European Commission, 2011 - 2015.  
  
  
• "SWING: Short Wave critical Infrastructure Network based on new Generation of high survival radio communication system", European Commission, 2011 - 2013.  
  
  
• "Enhancement of the DIAS system through the implementation of the TaD profiler", Research Grant, 2011-2012.  
  
  
• "A new method to determine thermospheric parameters from routine ionospheric observations", NRC Science Committee, 2010 - 2012  
  
  
• "An improved model for operational specification of the electron density structure up to geosynchronous heights", Research Grant, 2009-2010.  
  
  
• COST ES0803 action: "Developing Space Weather Products and Services in Europe", European Commission, 2008-2012.  
  
  
• "Solar wind driven autoregression model for ionospheric short term forecast (SWIF): Implementation in DIAS system", Research Grant, 2008-2009.  
  
  
• "Electron density profile reconstruction up to geosynchronous orbit heights", NATO Programme Security Through Science, Collaborative Linkage Grant, 2007-2009.  
  
  
• "Solar wind driven autoregression model for ionospheric short term forecast (SWIF)", Research Grant, 2007-2008.  
  
  
• "Advances in the scientific basis for monitoring, modelling and predicting space weather", International Space Science Institute (ISSI) International Team, 2006-2007.  
  
  
• COST296: "Mitigation of Ionospheric Effects on Radio Systems (MIERS)", European Commission, 2005-2009.  
  
  
• COST724: "Developing the scientific basis for monitoring, modeling and predicting Space Weather", European Commission, 2003-2007.
   
• "European Digital Upper Atmosphere Server (DIAS)", European Commission eContent,2004-2006. 
  
  
• "Modelling of the topside ionosphere for operational applications", NATO Science Programme, Collaborative Linkage Grant, 2003-2005.  
  
  
• "Geomagnetic Indices Forecasting and Ionospheric Nowcasting Tools (GIFINT)", ESA Space Weather Pilot Project, 2003-2005.  
• COST271: "Effects of the upper atmosphere on terrestrial and Earth-space communications", European Commission, 2000-2004.  

• "Installation and operation of a fully automated digisonde by the National Observatory of Athens", General Secretariat for Research and Technology, Greek Ministry of Development, 1998-2000.  

• Automatic data transfer from Athens Digisonde to  IPS Radio and Space Services, Australian Forecast Center to support HF radio in Europe: 

European Region Real-Time Ionospheric Map 

Real-Time European Region Derived TEC Map

Real-Time HAP Charts

• Automatic data transfer from Athens Digisonde to Rutherford Appleton Laboratory, World Data Center to support real-time ground observations for nowcasting, forecasting and warning processes in the European region.
  
  
• Automatic data transfer from Athens Digisonde to the Northwest Research Associates, Inc., for the derivation of ionospheric indices to support space weather applications.

Participation in Space Missions (Co-Investigators) 

• The CHAMP Mission "Comparative studies between Athens Digisonde and CHAMP ionospheric data", GeoforschungsZentrum Postdam (GFZ). Comparison of the ionospheric products received from both the Athens Digisonde and the GPS experiment onboard CHAMP, for the validation of the method used by GFZ. 
  
   
• SWARM: A Constellation to Study the Dynamics of the Earth's Magnetic Field and its Interactions with the Earth System, Earth Explorer Opportunity Missions, ESA.