Jun 23, 2026 – 5.55pmA nationwide security and technology company that counts Coles, Bunnings Warehouse and NAB among its customer base is preparing to test bidder appetite after more than 46 years of family ownership.Street Talk understands PMT Security Systems has hired Grant Samuel’s Peter King to shop a minority stake in the company. Between 30 per cent and 40 per cent is up for grabs, giving potential backers exposure to its retail, commercial and government contracts.Sarah Thompson has co-edited Street Talk since 2009, specialising in private equity, investment banking, M&A and equity capital markets stories. Prior to that, she spent 10 years in London as a markets and M&A reporter at Bloomberg and Dow Jones.Kanika Sood is a journalist based in Sydney who writes for the Street Talk column.Emma Rapaport is a co-editor of the Street Talk column. Prior to that, she was a markets reporter at The Australian Financial Review.Subscribe to gift this articleGift 5 articles to anyone you choose each month when you subscribe.Subscribe nowAlready a subscriber?