As per 2014, it pastorally served 10,000 Bulgarian (Byzantine Rite) Catholics in 20 parishes with 17 priests (4 diocesan, 13 religious), 42 lay religious (15 brothers, 27 sisters), and 1 seminarian.
Ivan Garufaloff, Resurrectionists (C.R.) (1942.07.06 – 1951.08.07)
Kyril Stefan Kurteff again (see above 1951.04.27 – death 1971.03.09)
Metodi Dimitrov Stratiev, Assumptionists (A.A.) (1971.03.09 – 1995.09.05), Titular Bishop of Diocletianopolis in Thracia (1963.04.28 – death 2006.05.12), also President of Episcopal Conference of Bulgaria (1970 – 1995); succeeded as former Coadjutor Apostolic Exarch of Sofia of the Bulgarians (Bulgaria) (1963.04.28 – 1971.03.09)
Christo Proykov (1995.09.05 – 2019.10.11), Titular Bishop of Briula (1993.12.18 – ...), also President of Episcopal Conference of Bulgaria (1995 – ...); succeeded as former Coadjutor Apostolic Exarch of Sofia of the Bulgarians (Bulgaria) (1993.12.18 – 1995.09.05).