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- CALVERT ENVIRONMENTAL LTDActive - Proposal to Strike off- 07404340 - Incorporated on 12 October 2010 
- CALVERT AVIONICS LIMITEDActive - Proposal to Strike off- 08305436 - Incorporated on 23 November 2012 
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- CALVERT & MOORE LIMITEDDisolved- 13113012 - Dissolved on 21 November 2023 
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