Dentsu Promotes Siddarth Malhotra to CEO Isobar Vietnam – Denise Thi Elevated to the Role of Chair Lady

Dentsu Asia Pacific has promoted Siddarth Malhotra to CEO Isobar Vietnam, in addition to his current role as Managing Director dentsu mcgarrybowen Vietnam.

The move will see former CEO of Isobar Vietnam, Denise Thi, moving into the Chair Lady role to focus on employee engagement, clients relationship strengthening, and innovative solution development said Dentsu. Both will report to Sanjay Bhasin, CEO dentsu Thailand, Vietnam & Myanmar, who saw his regional remit expand in December.

“Being the Chair Lady would allow me to have greater focus on what really builds sustainable impact to our people and business, while ensuring that the agency have strong support from Siddarth, the new CEO to take Isobar Vietnam to the next chapter of growth,” said Thi.


Thi co-founded Emerald, which was acquired and rebranded to Isobar Vietnam by dentsu in 2015. During her time as CEO of Isobar Vietnam, the brand grew from a local digital agency to an end-to-end integrated marketing agency.

“Denise has given us nothing but her full dedication and sheer commitment since she joined dentsu eight years ago,” said Bhasin.

“She is a remarkable leader who has spearheaded Isobar Vietnam into one of the market’s leading creative agencies, and has made headlines in the industry creating innovative concepts for brand activation. It is a natural progression for Denise to be promoted to the Chair Lady of Isobar Vietnam and I look forward to continuing building great work for our clients together.”


Malhotra brings over two decades of experience – of which 12 years was spent specializing in the Vietnam market. He joined dentsu in 2018 as Chief Client Officer to lead the new business initiative. Prior to joining dentsu, he was Client Servicing lead at MullenLowe Vietnam, where his team won at AME Awards and was also recognized at 4A’s Jay Chiat, and subsequently Client Services Director at Publicis Vietnam.

“Siddarth brings with him not only strong business acumen, but also a strategic mind of dexterity and stamina,” said Bhasin.

“He has a deep understanding of how brands are built and has earned a reputation across the network as the best partner to help steer Isobar Vietnam and our clients to greater heights. This is a well-deserved promotion for Siddarth.”

Malhotra added: “Isobar Vietnam has one of the best agency teams and together with this excellent team I look forward to expand our capabilities and that can benefit our current and future clients.”

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