• Agency for Bulgarians Abroad
• Allegheny Regional Asset District (RAD)
• American Embassy in Bulgaria
• American University in Bulgaria
• Bulgarian "Avtori" (Authors) Project - Works of Bulgarian literature in audio format
• Bulgarian Embassy in Washington DC
• Bulgarian Consulate in New York City
• Bulgarian in USA
• Bulgarian National Radio - English Service
• Bulgarian News Agency
• Calleva Outdoor Adventures
• Carnegie Library of Homestead
• Destination Greater Pittsburgh
• Global Pittsburgh
• Greater Pittsburgh Arts Council
• Hampton Inn Pittsburgh/West Mifflin
• Hazelnut Catering - Nick Jordanoff, Owner/Chef
• Opera from Bulgaria - Audio Encyclopedia Project
• Pennsylvania Council for the Arts
• Rivers of Steel
• Sofia News Agency
• Song of the Crooked Dance - Labels from Bulgarian 78 Record Collection
• Travel Bulgaria
• Visit Pittsburgh