EST/ENG | ENTERPRISE BUSINESS SOLUTIONS SOLUTIONS NEWS OPINION ARTICLES CONTACT ABOUT US PROJECTS News Tallinn Office has Moved (March 17, 2009) HÄT Systems is HansaWorld partner (December 31, 2008) Partners Sõpruse pst 145, 13417 Tallinn / Sõbra 56, 51013 Tartu Tel +372 881 0400 E-mail hat(at)hat.ee