The association, apart from activities for education, social events and communication of its members (as the New Year party), organised with success the following congresses, which were supported extensively by the tourist press:

  • 30 March 2003 in a room of the exhibition "Tourist Panorama". Subject: "Τhe correspondence of studies in the Tourist Departments of TEI (POLYTECHNIC COLLEGES) to the needs of the tourist marke
  • 8 April 2003, in the Technical Vocational School of ¦Amfissa. Subject: Undergraduate Studies in Tourism-Career Opportunities in the Tourism Sector
  • 13 April 2003. Athens, Themistokleous 5, ¦Academic centre. Subject: "Development of Tourist Destinations - the case of Kithira
  • 1 and of 2 December 2003 in Park hotel in Athens, 1st Pan-Hellenic Hotel Congress. Subject:  "The Administration of hotel as lever of profit maximization". 
  • 23 February 2004 in the Hotel "Thalassa " in Chalcis, meeting for tourism in Evia. Subject "Development Hospitality Enterprises"
  • 8 May 2004 in Siphnos meeting. Subject: "the importance of Quality for the Economic Efficiency of Tourist Enterprises " in collaboration with the D.E.T.A.S. (Municipal Enterprise of Tourist Development of Siphnos)
  • 22 May  2004  at  the Beach  of  Katerini in the Hotel ¦Mediterranean¦ ¦Resort¦ meeting. Subject: "Methods of Developing Hospitality Enterprises" in collaboration with the Union of Hoteliers of Katerini Beach
  • 5 and 6 February 2005 in LEDRA MARRIOTT hotel in Athens, 2nd Pan-Hellenic Hotel Congress. Subject: "Theory and Practice in Modern Administrative of Hotel Operations ".
  • 21 and 22 March 2006 in LEDRA MARRIOTT hotel in Athens, 3th Pan-Hellenic Hotel Congress. Subject: ¶"Hotel Business".
  • 4 June 2006 in Siphnos seminar. Subject: "Hospitality Management " in collaboration with the D.E.T.A.S. (Municipal Enterprise of Tourist Development of Siphnos)
  • 17 and 18 March 2007 in LEDRA MARRIOTT hotel  in Athens, 4th Pan-Hellenic Hotel Congress. Subject: "Maximizing Hotel Sales".
  • 17 and 18 March 2007 in LEDRA MARRIOTT hotel in Athens, 4th Pan-Hellenic Hotel Congress. Subject: ¶"Maximizing Hotel Sales". 
  • 12 May 2007 at Leros island meeting. Subject: “Tourism Education and Hospitality Quality” in collaboration with the Municipality of Leros.
  • 22 and 23 March 2008 in LEDRA MARRIOTT hotel in Athens, 5nd Pan-Hellenic Hotel Congress. Subject: "F&B ". 
  • 7 and 8 March 2009 in LEDRA MARRIOTT hotel ¦in Athens, 6nd Pan-Hellenic Hotel Congress. ¦Subject: "Hotel Manager ".

Moreover, DRATTE participated with its proposals to congresses and meetings through representatives, while it published a plethora of articles in periodicals of the sector.