Media Monitors, which was formed in 1982, offers clients a range of social and traditional media monitoring services. The firm employs more than 800 staff across the Asia Pacific region and boasts a client list of more than 5,000.

CEO John Croll (pictured) said: “We are delighted by the opportunities Quadrant Private Equity brings to our business. We operate in a very dynamic industry where clients’ needs and media developments occur at a very fast pace. We are looking forward to the agility that the Quadrant team brings to leverage opportunities and further enhance services to our corporate and government teams.”

Quadrant Private Equity’s managing director Chris Hadley said the new owners would work with management to further develop the business “through innovative products, services and potential strategic acquisitions”.

Meanwhile, Media Monitors has partnered with ComScore on a service that claims to help companies measure how much their media and PR coverage is worth in advertising spend.

The firm said that the measurement methodology incorporates data on page impressions, unique visitors, content style, advertising rates, size, language scaling and placement to provide “instantly comparable advertising space rates (ASR) across internet monitoring content”.

Gregg Amies, Media Monitors’ general manager for Australia and New Zealand, said: “Our clients will be receiving comprehensive and immediate ASR values across press, broadcast and internet, allowing full and consistent reporting of both campaign and ongoing media relations measurement.”