Principal Logistics Technologies, a Dublin company building software for the logistics industry, has been acquired by a US firm backed by the owners of Chelsea FC. The Ongar-based company, which is more than 30 years old, has been scooped up by Aptean, a major player in the industrial software space. Principal Logistics Technologies (PLT) develops software for managing warehouse operations and logistics supply chains with operations across Ireland and the UK. Alongside its Ongar office, it has bases in Birmingham and Manchester. PLT is headed up by chief executive Peter Flanagan and chairperson Lorcan Tiernan. “It’s on a growth path…