Anton Kazakov was Office Manager of the American Research Center in Sofia (2008). His work at the center was related to the maintenance of the building, local book-keeping and dealing with government organizations and local agencies. Another important task was to assist ARCS Fellows and visiting scholars with the necessary documentation during their stay. 

Nina Totcheva is a Chief Financial Consultant of the American Research Center in Sofia. She has worked for ARCS Inc., the US representative and sponsor of the ARCS Foundation, since 2012. She is in charge of controlling expenditures and obligations, receipting and internal and external reporting. She has a  Master's degree in Banking, Finance and Insurance from Paris-Dauphine University and a second Master's degree in Business Management from Paris-Sorbonne University. She had previously worked as an auditor, company manager and real estate specialist. 

Dilyana Ivanova is an Executive Assistant and Chief Administrator of the American Research Center in Sofia. Born in Rousse in 1976. She obtained her MA degree in History and Balkan Studies at the University of Veliko Turnovo “Saints Cyril and Methodius" in 2001. From 2002 to 2006 Ivanova worked as Curator at the Rousse Regional Museum of History, Modern History Department, doing research in the field of Ethnology of Socialism and Post-socialism. From 2009 until the summer of 2013, she worked in the Anthropology Department at The Field Museum in Chicago as a Project Manager for the Bulgarian Archaeological Grant Program. Ivanova obtained her Ph.D. in December 2012 from the Institute of Ethnology and Folklore Studies with Ethnographic Museum, Bulgarian Academy of Sciences, Sofia.