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Thrive pulls ex-DDB Worldwide chairman Marty O’Halloran in as strategic adviser

He will advise Thrive’s leadership team on strategic growth, creative development, business expansion and talent mentoring.

By Vihan MathurPublished Mar 13, 2026
2 min read
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Marty O’Halloran has joined Thrive PR and Communications in its first executive advisory appointment across Australia and New Zealand.

The move places one of global advertising’s most senior former network leaders in an advisory role as Thrive expands its multi-market, multi-service ambitions.

O’Halloran’s almost four decades experiences

Over a career spanning almost four decades, O’Halloran rose from account manager in Melbourne to Global Chief Executive Officer and later Global Chairman of DDB Worldwide, part of Omnicom Group, overseeing 10,000 staff across more than 90 countries before retiring in 2024.

In his new role, he will advise Thrive’s leadership team on strategic growth, creative development, business expansion and talent mentoring.

CEO comments

Leilani Abels, Chief Executive Officer and Founder of Thrive PR and Communications, said O’Halloran’s experience would directly shape the agency’s next stage.

“Marty has led one of the most awarded creative networks in the world and there are few leaders globally who are held in such high esteem. He understands exactly how agencies grow and he’ll help Thrive to innovate, elevate creativity and continue to focus relentlessly on adding value to clients,” she said.

“Marty shares our belief that creativity and connections drive business growth, and that great agencies are built by creating environments where our people thrive.”

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Thrive said the appointment reflects its continued evolution as an integrated communications business working with brands including The LEGO Group, Diageo, Cisco, Afterpay and Harley-Davidson.

O’Halloran comments

O’Halloran said the agency’s culture and positioning attracted him to the role.

“Thrive has built something special — a modern communications agency with strong values, ambitious leadership and a clear belief in the power of creativity and earned influence,” he said.

“I’ve always believed the best agencies combine strategic thinking, creative courage and a culture where talented people can do the best work of their careers. Thrive embodies that.”

The announcement comes as Thrive PR and Communications also opens recruitment for senior Sydney-based roles including Managing Director and Client Partner.

Abels said the agency sees the current period as a major growth point.

“This is possibly the most exciting time in Thrive’s history to be a part of our team.”

Top Image: Marty O'Halloran and Leilani Abels

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