- ISTVAN TOTH- 12 BECKETT HOUSE, 14 BILLING ROAD, NORTHAMPTON, UNITED KINGDOM, NN1 5AW 
- ISTVAN SOKI- Born March 1970 - FLAT3 DAPPLE HOUSE 56, MEAD ROAD, CRANLEIGH, UNITED KINGDOM, GU6 7BJ 
- ISTVAN NAGY- Born April 1988 - 42 BENTLEY PLACE, WREXHAM, UNITED KINGDOM, LL13 8DQ 
- ISTVAN BODO- 34 MESTER UTCA, DEBRECEN, HUNGARY, 4026 
- ISTVAN KISS- 124 ALNWICK ROAD, SHEFFIELD, UNITED KINGDOM, S12 2GH 
- ISTVAN JAKO- Born January 1974 - 11 POPLAR GROVE, WEMBLEY, UNITED KINGDOM, HA9 9BZ 
- ISTVAN VETO- Born April 1959 - 168 THORNBURY ROAD, ISLEWORTH, UNITED KINGDOM, TW7 4QE 
- ISTVAN NAGY- HOVA HOUSE 1 HOVA VILLAS, BRIGHTON & HOVE, ENGLAND, BN3 3DH 
- ISTVAN SIMO- Born June 1965 - 15 FOXHALL ROAD, IPSWICH, UNITED KINGDOM, IP3 8JU 
- ISTVAN KELE- 9 MONKS WALK, EVESHAM, WORCESTERSHIRE, UNITED KINGDOM, WR11 4SL 
- Istvan IMRI- Born April 1969 - 77 High Street, Littlehampton, England, BN17 5AG 
- ISTVAN KISS- Born October 1982 - 5 MARTELLO CLOSE, GRAYS, ENGLAND, RM17 6FL 
- ISTVAN RACZ- Born May 1957 - 6 MORSTON OFFICE PARK, CLAYCLIFFE, BARNSLEY, SOUTH YORKSHIRE, UNITED KINGDOM, S75 1HQ 
- ISTVAN VEGH- 20-22 WENLOCK ROAD, LONDON, ENGLAND, N1 7GU 
- Istvan JANO- Born August 1986 - F04 1st Floor Knightrider House, Knightrider Street, Maidstone, Kent, United Kingdom, ME15 6LU 
- ISTVAN KALO- Born December 1978 - 430 PORTLAND ROAD, BIRMINGHAM, ENGLAND, B17 8LT 
- ISTVAN SARI- Born October 1983 - 14 ORCHARD STREET, MAIDSTONE, ENGLAND, ME15 6NR 
- ISTVAN VETO- 168 THORNBURY ROAD, ISLEWORTH, UNITED KINGDOM, TW7 4QE 
- Istvan VIGH- Born August 1980 - Suite 2a Blackthorn House, St. Pauls Square, Birmingham, United Kingdom, B3 1RL 
- Istvan TOTH- Born July 1975 - 12. Fazekas Mihaly U., Petfurdo, Hungary, H-8105