Assembly has tapped Aaron Kleiman as General Manager and Client Vice President for its Japan operations. In the dual role, Kleiman will oversee all aspects of Assembly’s business in Japan, including strategy, performance, and integration across teams, the agency said. He will also serve as a senior advisor to both local and global clients, delivering data-driven and tech-enabled marketing solutions tailored to the Japanese market.
“Aaron is a seasoned leader with a rare combination of global vision and deep local expertise,” said Vivian Mok, Managing Director, North Asia, Assembly.
“Japan remains a key growth market for Assembly, and Aaron’s track record of building high-performing teams and delivering world-class results for global brands gives us immense confidence in our future here.”
Kleiman brings more than 25 years of experience in the Japan market, working across both agency and client-side leadership. Most recently, he served as Deputy Head of Initiative Japan, where he led strategic growth for clients such as AWS, LEGO, 3M, Finnair, Patek Philippe, and Hyatt.
“I’m thrilled to join Assembly and help lead its growth in one of the region’s most exciting and dynamic markets,” said Kleiman.
“Assembly’s focus on data, technology, and building connected omnichannel experiences offers a powerful platform for brands looking to thrive amidst Japan’s continuously evolving consumer and business landscape. I’m excited to be part of the team.”
The appointment is part of Assembly’s broader expansion across North Asia, as the company, which is part of Stagwell, looks to meet growing client demand and shifting market dynamics in the region.
AloJapan.com