- SYDNEY BUNCE LIMITEDLiquidation- 06194640 - Incorporated on 30 March 2007 
- SYDNEY SOLUTIONS LIMITEDActive - Proposal to Strike off- 06526081 - Incorporated on 6 March 2008 
- SYDNEY ENTERTAINMENT LIMITEDActive - Proposal to Strike off- 08676514 - Incorporated on 4 September 2013 
- SYDNEY PROPERTIES LIMITED- 08827334 - Incorporated on 30 December 2013 
- SYDNEY FOOD LIMITED- 07443090 - Incorporated on 17 November 2010 
- SYDNEY CLEANING LTD- 09098013 - Incorporated on 23 June 2014 
- SYDNEY PIMBLEY LIMITED- 12337669 - Incorporated on 27 November 2019 
- SYDNEY ELEGANCE LTDActive - Proposal to Strike off- 11532712 - Incorporated on 23 August 2018 
- SYDNEY DEVELOPMENTS LTD.- 10780301 - Incorporated on 19 May 2017 
- SYDNEY ANDERSON LTDActive - Proposal to Strike off- 11112770 - Incorporated on 14 December 2017 
- SYDNEY EAST LIMITED- 11803774 - Incorporated on 4 February 2019 
- SYDNEY BELL LIMITEDActive - Proposal to Strike off- 00492778 - Incorporated on 15 March 1951 
- SYDNEY VERNON LIMITED- 16466395 - Incorporated on 21 May 2025 
- SYDNEY MEDICAL LIMITED- 16531616 - Incorporated on 20 June 2025 
- SYDNEY CAPITAL LLP- OC433146 - Incorporated on 27 August 2020 
- SYDNEYKS LIMITEDDisolved- 12898308 - Dissolved on 11 January 2022 
- SYDNEY ESTATES LTD- 09965649 - Incorporated on 22 January 2016 
- CHARLES SYDNEY LTDDisolved- 10478192 - Dissolved on 13 August 2024 
- RAINBOW SYDNEY LTDDisolved- 15373545 - Dissolved on 22 October 2024 
- 54 SYDNEY ROAD LIMITEDDissolved- 08236534 - Dissolved on 15 January 2019