From Tokyo to Osaka: PSI Continues Japan Expansion with New Office in Osaka

Osaka, Japan, 14th January 2026 / Sciad Communications / PSI CRO, a Swiss-based global full-service contract research organization, today announced further expansion in Japan, with the opening of the second office located on Level 18 of the Hilton Plaza West Office Tower in Umeda, Kita-ku, Osaka.

Japan is a vital market for pivotal clinical trials. In early 2025, PSI opened its first Japanese office in Tokyo and appointed Sayaka Kaji as Country Manager for Japan. By adding an Osaka location, PSI brings sponsors closer to experienced local teams and the local PSI team closer to the established site networks.

As clinical research grows more complex – with no end to the complexity in sight – Japan is well placed to benefit from PSI’s distinctive delivery model. With a larger team operating from two strategic locations, PSI brings strong in-country knowledge and established relationships across Japan’s clinical research community, helping sponsors move faster with delivery that’s predictable, responsive, and grounded in local experience.

Sayaka Kaji says, “PSI’s approach means we adapt rapidly to our clients’ needs and market changes. I’m proud of what we achieved in 2025: we hit our milestones and grew our team significantly. The new office in Osaka will ensure that sponsors in Japan can count on the same standard of excellence that defines PSI worldwide, with local experts who understand the region’s unique challenges and bring proven solutions to every project. I feel the spirit of 不撓不屈 (undaunted determination and indomitable will) in each team member as we strive towards our ambitious goals.”

From Tokyo to Osaka, PSI’s purpose remains clear: deliver clinical trials on time, no matter geography or complexity.

PSI’s further expansion and continued growth in Japan follows recent office expansions in Asia-Pacific, including South Korea, Singapore, China, Taiwan, India, Australia, and New Zealand, where PSI operates with dedicated full-time office-based staff.

To learn more about PSI’s capabilities in Japan, please contact us today.