- ONUR YELKEN- Born May 1985 - 61 FLEET STREET, LONDON, ENGLAND, EC4Y 1JU 
- YAMACSRF LTDDisolved- 12863474 - Dissolved on 8 February 2022 
- Umut Izzet YAMAC- Born June 1980 - Leyton Studios 15 Argall Avenue, London, England, E10 7QE 
- OZAN YELKEN- Born September 1989 - 161 ROGATE HOUSE 8 MUIR ROAD, CLAPTON, LONDON, E5 8QX 
- OZAN YELKEN- Born June 1965 - 161 ROGATE HOUSE, 8 MUIR ROAD, LONDON, UNITED KINGDOM, E5 8QX 
- AHMET CEM YAMAC- Born May 1994 - FLAT 9 29 ABERCORN PLACE, LONDON, UNITED KINGDOM, NW8 9DS 
- Saadet YAMAC- Born November 1980 - 14 Averill Road, Birmingham, England, B26 2EQ 
- ELITE YELKEN LTD- 14691138 - Incorporated on 27 February 2023 
- YELKEN DERSI LTD- 15331523 - Incorporated on 6 December 2023 
- Metin YELKEN- Born April 1972 - 638 Lordship Lane, Wood Green, London, England, N22 5JH 
- METIN YELKEN- Born April 1972 - 62 CAVENDISH ROAD, EDMONTON, LONDON, UNITED KINGDOM, N18 2LS 
- GULSEREN YELKEN- Born June 1965 - FLAT 161 ROGATE HOUSE, 8 MUIR ROAD, LONDON, UNITED KINGDOM, E5 8QX 
- YAMAC GLOBAL LTDDisolved- 15419443 - Dissolved on 1 July 2025 
- SERHAN YAMACLI- Born November 1981 - 11 BELGRAVIA COURT, BATH ROAD, READING, BERKSHIRE, ENGLAND, RG30 2BL 
- SERHAN YAMACLI- Born November 1981 - APT 2679 CHYNOWETH HOUSE, TREVISSOME PARK, TRURO, ENGLAND, TR4 8UN 
- AHMET CEM YAMAC- 29 ABERCORN PLACE, LONDON, UNITED KINGDOM, NW8 9DS 
- YAMACAR LIMITEDDisolved- 12317141 - Dissolved on 7 December 2021 
- ESRA YELKENCI- Born May 1981 - 5-15 CROMER STREET, LONDON, WC1H 8LS 
- MASANORI YAMACHI- Born February 1941 - 1-10-4 KAYOGAOKA, NAGAOKAKYO-SHI, KYOTO-FU, JAPAN, 617 0852 
- SEMA LIMITED- 05224547 - Incorporated on 7 September 2004