On October 2, 2025, we proudly hosted a celebration event at the Conrad Tokyo to commemorate the integration of RSM Japan Tax Co. with RSM Shiodome Partners Tax Co..

The event gathered many guests from across the global RSM network. We were honored to welcome Mr. Stephen Darley, Regional Leader of RSM Asia Pacific, alongside representatives from RSM Seiwa, Tokyo Kyodo Accounting Office (RSM Japan’s correspondent firm), and other international partners.

Ceremony Highlights

During the integration ceremony, Mr. Akinaga Murayama, former Representative of RSM Japan Tax Co., and Mr. Kengo Maekawa, Group CEO of RSM Shiodome Partners, both shared their enthusiasm about the integration, highlighting the powerful synergies created by uniting the two firms. They emphasized the shared vision for creating new value and delivering enhanced service offerings through collaboration.

They also took the opportunity to express sincere gratitude to all those who contributed to making the integration a reality, reaffirming their commitment to continued growth and innovation.

Mr. Stephen Darley, RSM Asia Pacific Regional Leader, also took the stage to deliver a heartfelt congratulatory message. He expressed his belief that this integration would lead to the further development and enhanced collaboration of the entire RSM network.
 

Mr. Akinaga Murayama, Former Representative of RSM Japan Tax Co.
 

Mr. Kengo Maekawa, Group CEO of RSM Shiodome Partners
 

Mr. Stephen Darley, RSM APAC Regional Leader

A Truly Global Gathering

The event brought together professionals from around the world, creating a vibrant and diverse atmosphere. Attendees could be heard conversing in English, Japanese, and Chinese, reflecting the truly international nature of the RSM network.

Beyond the ceremony, the event provided a valuable opportunity for networking and knowledge exchange, cultivating new professional relationships and laying a solid foundation for future cross-border collaboration.

Commitment to Future Growth

This integration stands as a testament to the dedication, collaboration, and shared vision of our teams. We are deeply thankful to everyone who contributed to this achievement, and we were pleased to have the opportunity to celebrate this important moment together.

With the addition of RSM Japan Tax Co., we are confident in our ability to deliver even greater value to our clients. As proud members of RSM International and RSM Japan, we remain committed to enhancing the RSM brand in Japan and contributing to the continued success of the global network.

We sincerely appreciate your ongoing support and partnership as we embark on this exciting new chapter.