MORE private security companies have improved their operations, leadership and manpower quality, according to the results of an annual grading exercise released on Tuesday.

The number of firms graded A - for excellent - rose to 27 from 19 last year. They included security giants like Aetos and Certis Cisco, which went up a notch to snag an A grade this year.

Outfits that scored consecutive As included G4S Security Services, Reachfield Security & Safety Management and Aetos.

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