- Ryszard GRABOWSKI- Born March 1993 - 665a High Road, Ilford, Essex, United Kingdom, IG3 8RQ 
- STANISLAW GRABOWSKI- Born September 1919 - 8 MARINESIDE, BRACKLESHAM BAY, CHICHESTER, WEST SUSSEX, PO20 8JJ 
- SANDRA GRABOWSKI- 132-134 GREAT ANCOATS STREET, SUITE 33854 ADVANTAGE BUSINESS CENTER, MANCHESTER, ENGLAND, M4 6DE 
- PATRYK GRABOWSKI- 115 DLUGA, CHARZYKOWY, POMORSKIE, POLAND, 89-606 
- AMINA GRABOWSKI- 5 BEAUCLERC ROAD, LONDON, W6 0NR 
- SZYMON GRABOWSKI- UL.ROZEWSKA 28, GDYNIA, POLAND, 81 055 
- DAMIAN GRABOWSKI- 3 HIGH STREET, POOLE, UNITED KINGDOM, BH15 1AB 
- ROMAN GRABOWSKI- 313B HOE STREET, LONDON, UNITED KINGDOM, E17 9BG 
- MARIUSZ GRABOWSKI- Born November 1974 - 48 QUEEN STREET, EXETER, ENGLAND, EX4 3SR 
- EDWARD GRABOWSKI COMMUNICATIONS LIMITED- 02898526 - Incorporated on 15 February 1994 
- ANTONIO JOSE LTDActive - Proposal to Strike off- 10521774 - Incorporated on 12 December 2016 
- PIOTR X1 TRANS LTD- 10146917 - Incorporated on 26 April 2016 
- PIOTR ARENT LTDActive - Proposal to Strike off- 12560953 - Incorporated on 17 April 2020 
- CONTRAST BUILD LTDLiquidation- 08669485 - Incorporated on 30 August 2013 
- NETT-PARKETT.EU LTDDissolved- 05484178 - Dissolved on 6 May 2014 
- PIOTR LIPKA LTDActive - Proposal to Strike off- 08733700 - Incorporated on 15 October 2013 
- PIOTR ZYDEK LTDDisolved- 12599612 - Dissolved on 28 June 2022 
- PIOTR MYSZA LTDDissolved- 11357333 - Dissolved on 3 September 2019 
- PIOTR SADZA LTDDisolved- 13571012 - Dissolved on 21 January 2025 
- PIOTR PALAK LTDActive - Proposal to Strike off- SC789128 - Incorporated on 13 November 2023