
September 14, 2026
Vistar Media, a provider of technology solutions for out-of-home media, and part of T-Mobile Advertising Solutions, is expanding its operations in Japan and establishing a dedicated local team to support media owners, advertisers, agencies and partners across the country.
Vistar's expansion introduces the company's full suite of solutions to Japan, including a digital OOH dedicated demand-side platform, supply-side platform, ad server, player, device management system and traditional OOH planning software, according to a press release.
"Japan has long been recognized as one of the most advanced out-of-home markets in the world," Michael Provenzano, co-founder and CEO of Vistar Media and SVP of T-Mobile Advertising Solutions, said in the release. "We see tremendous opportunity to help accelerate the next phase of growth by bringing together local expertise, proven technology and scale of Vistar's global marketplace. Our investment in Japan reflects our confidence in the market and our commitment to supporting advertisers and media owners in the years ahead."
As part of its expansion, Vistar announced the appointment of Yosuke Maekawa as country manager. Maekawa brings more than two decades of experience across digital media, advertising technology and business development, having held leadership roles at Amazon, Expedia Group, PubMatic and comScore. He will oversee Vistar's growth strategy and operations in Japan.