Carpathian Foundation (2004-2014)
(www.carpathianfoundation.org, www.carpathianfoundation.eu, www.karpatskanadacia.sk)
Design and development of the web-based Information system for the Carpathian Foundation Headquarters and its five offices located in Hungary, Poland, Romania, Slovakia, and Ukraine. The system provides easy, quick, user-friendly, and secure exchange of any kind of requested information between the foundation headquarters and its geographically distributed local offices. Emphasis is given to localization and full multilingual support (5 national languages and English) on each application levels - from system data to web content and published documents.

Evangelical (Lutheran) Church of Augsburg Confession in Prešov (2005-2015)
(www.patmos.sk)
Design and development of the web publishing system and online book store for the Evangelical (Lutheran) Church of Augsburg Confession in Prešov.

Šariš-Zemplín Seniorate of the Evangelical (Lutheran) Church (2006-2012)
(www.szecav.sk)
Design and development of the web publishing system for the Šariš-Zemplín Seniorate of the Evangelical (Lutheran) Church in Slovakia.

Evangelical (Lutheran) College - Grammar School in Prešov (2006-2011)
(www.ekgym.sk)
Design and development of the web publishing system for the Evangelical (Lutheran) College - Grammar School in Prešov. Includes e.g. Virtual tour, three language versions, Calendar, etc.

Eastern District of Evangelical (Lutheran) Church of Augsburg Confession in Slovakia (2005-2010)
(www.vdecav.sk)
Design and development of the web publishing system for the Eastern District of Evangelical (Lutheran) Church of Augsburg Confession in Slovakia.

Košický vedecko-technický inkubátor (2004-2010)
(www.kvti.sk)
Design and development of the web publishing system for the Košický vedecko-technický inkubátor.

Municipality Ľubotice (2005-2008)
(www.obeclubotice.sk)
Design and development of the web-based e-Government application for the local municipality of Ľubotice.

Košice Self-Governing Region (2004-2006)
Design and development of the e-Filing Room a web-based e-Government application for enhancement of communication processes between citizens and local authority. For citizens, the e-Filing Room system provides customizable and easy-to-use web interface for navigation and submitting various forms to the relevant office of the local authority, without the need to understand the complicated structure of offices and their interdependence.

Infoplan, GmbH (2003-2006)
Supervision of Maximum Demand and Switching (E Max). An information system for online supervision of power and energy and switching supervision.

SigmaQuest, Inc. (2002-2005)
Participation on the development of the SigmaQuest Suite. SigmaQuest Suite consists of five web-based applications, each designed to improve collaborative design and product performance throughout the entire manufacturing and field deployment processes. SigmaQuest Suite is a web-centric "Product Performance Visibility Console" that brings product information to anyone, at anytime, from any location. Through SigmaQuest's secure portal, all participants in the manufacturing process can gain full access to product information as it is being designed, built, shipped and used by the end customer.

Oy Winpos Ab (since 2001)
Specification and development of point-of-sale (POS) solutions - mainly to be utilized by specialty stores.