- ISTVAN BALOGH- 12 BECKETT HOUSE 14 BILLING ROAD, NORTHAMPTON, ENGLAND, NN1 5AW 
- ISTVAN KALANYOS- 25 CUMBERLAND ROAD, LONDON, UNITED KINGDOM, E13 8LH 
- ISTVAN DEBRECZENI- Born December 1961 - 62. RAKOCZI UT, HATVAN, HUNGARY, H-3000 
- VARKONYI ISTVAN- Born December 1972 - 17 BARANYAI UT, BUDAPEST, HUNGARY, HU 1117 
- ISTVAN KOVACS- Born June 1960 - OFFICE 4 219 KENSINGTON HIGH STREET, KENSINGTON, LONDON, ENGLAND, W8 6BD 
- ISTVAN MARGETIN- Born August 1979 - 2 REJTO JENO U., BUDAPEST, HUNGARY, 1074 
- ISTVAN BODNAR- UNIT 42 PRICE STREET, BIRKENHEAD, UNITED KINGDOM, CH41 4JQ 
- MADARASZ ISTVAN- 3RD FLOOR 207 REGENT STREET, LONDON, UNITED KINGDOM, W1B 3HH 
- ISTVAN BALOGH- Born January 1975 - OFFICE 107 GREAT NORTHERN HOUSE, 275 DEANSGATE, MANCHESTER, ENGLAND, M3 4EL 
- ISTVAN RAUSCH- 54 ARCON ROAD, COPPULL, CHORLEY, ENGLAND, PR7 5TX 
- ISTVAN KEREKES- UNIT 42 PRICE STREET BUSINESS CENTRE, BIRKENHEAD, UNITED KINGDOM, CH41 4JQ 
- ISTVAN KOLTAI- Born December 1968 - 5 BELLBROOKE PLACE, LEEDS, ENGLAND, LS9 6AR 
- ISTVAN SARNYAI- Born March 1975 - 10B TEMPLE MARKET, QUEENS ROAD, WEYBRIDGE, 10B TEMPLE MARKET, SURREY, UNITED KINGDOM, KT13 9DL 
- ISTVAN KOLTAI- 5 BELLBROOKE PLACE, LEEDS, UNITED KINGDOM, LS9 6AR 
- ISTVAN JUHASZ- Born March 1967 - SUITE 4B 43 BERKELEY SQUARE, MAYFAIR, LONDON, UNITED KINGDOM, W1J 5FJ 
- ISTVAN HORVATH- WATERLOO COURT SUITE 10, 31 WATERLOO ROAD, WOLVERHAMPTON, UNITED KINGDOM, WV1 4DJ 
- ISTVAN TOREKI- Born December 1940 - 7 WHITECHAPEL ROAD, OFFICE 410, LONDON, UNITED KINGDOM, E1 1DU 
- ISTVAN HERNADI- Born December 1968 - 23 ADWOOD COURT, THATCHAM, ENGLAND, RG19 4ES 
- ISTVAN KOVACS- 202 WALLASEY ROAD, WALLASEY, MERSEYSIDE, ENGLAND, CH44 2AG 
- ISTVAN SZIRBIK- Born August 1963 - 58. FO U., ERD, HUNGARY, 2030