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SUNNY SIDE UP Inc.
SUNNY SIDE UP Inc. is a Tokyo PR group ranked 3rd in Asia by PRWeek 2026, focused on social impact through communication.
SUNNY SIDE UP Inc.
SUNNY SIDE UP Inc. operates as a PR communications group headquartered in Tokyo, Japan. The firm's founding year and founding principal are not publicly disclosed, though its slogan — "Want to create a fun commotion" — signals a focus on generating positive societal impact through communication strategies. The group deploys PR-driven approaches across multiple sectors, including corporate branding, sports management, entertainment, and regional revitalization. It also addresses social challenges and has earned B Corp certification. The firm ranked 3rd in Asia and 26th globally in the PRWeek Agency Business Report 2026. Known clients and projects include the TAKANAWA LIGHT JOURNEY for Tokyo's nighttime tourism promotion, the Australia Pavilion PR for Expo 2025 Osaka Kansai, and the launch of next-generation agricultural venture BG. The firm also manages athletes and specialists, as indicated by its contact form listing talent like Asahi Kentaro and Hidetoshi Nakata. SUNNY SIDE UP Group announced a planned business integration with Akatsuki Inc. via a tender offer (per the firm's website, undated). In 2025, it launched an AI Dialogue & Relations Team, appointing Takayuki Fukatsu — a noted expert in generative AI — as AI-Relations Advisor. The group also operates the news media site GOOD&NEWS and maintains a strategic partnership with note, a Japanese content platform. The firm's structural differentiator lies in its B Corp certification and its explicit mission to generate "GOOD impact" through communication — distinct from traditional PR agencies that focus solely on media exposure. This ethical mandate informs client selection and project design.
General information
Firm type
other
Year founded
—
AUM
Undisclosed
Location
Region
Asia
Country
Japan
City
Tokyo
Corporate office
Tokyo, Japan
Frequently asked questions
What is SUNNY SIDE UP Inc.'s core business?
SUNNY SIDE UP Inc. is a PR communications group based in Tokyo, Japan. It uses PR-driven strategies across corporate branding, sports management, entertainment, and regional revitalization, with a stated mission of creating positive societal impact.
Does SUNNY SIDE UP Inc. manage investment capital?
SUNNY SIDE UP Inc. does not publicly disclose any AUM or investment deployment. The firm operates as a communications and PR services group, not an investment manager.
What distinguishes SUNNY SIDE UP from other PR agencies?
The firm holds B Corp certification and explicitly focuses on generating "GOOD impact" through communication. It also ranks 3rd in Asia and 26th globally in the PRWeek Agency Business Report 2026.
Who are the key people at SUNNY SIDE UP?
The firm's leadership is not publicly listed. It does disclose a roster of managed athletes and specialists, including figures like Hidetoshi Nakata and Asahi Kentaro, but no named principals or executives.
What is the firm's relationship with Akatsuki Inc.?
SUNNY SIDE UP Group announced a planned business integration with Akatsuki Inc. via a tender offer, though no completion date has been disclosed (per the firm's website).
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