Osiro

Osiro, Ltd. (オシロ株式会社, OSIRO, Ltd.) develops and operates OSIRO, an owned community platform built specifically for running membership communities. The product lets creators, artists, companies and other organizations create a branded "home" for their core fans, with a home-design capability for customizing the look and world-view of the space, features for member-to-member interaction, event and e-commerce charging on top of recurring membership fees, and analytics on community activity. The company states the platform can be deployed in as little as one month and emphasizes reducing the operational overhead of running a community.

Alongside the software, Osiro assigns dedicated community producers who accompany operators from launch through ongoing operation and supply community design and activation know-how. It also runs OSIRO Knight, a site for community operators to exchange operational knowledge, and operates its own communities on the platform, such as the art community "ビジュツヘンシュウブ。" led by former Brutus deputy editor Yoshio Suzuki, which hosts paid talk events and studio visits.

The company frames its mission as "making Japan a great nation of art and culture" with a vision of "realizing a world where creators can make a living," and describes its product direction around "creative communities" in which fans and supporters also become creators, including official secondary creation and member-to-member selling, plus continued development of AI for community management.

Founding story

Founder and CEO Hirokazu Sugiyama returned to Japan at 24 after traveling around the world and pursued a career as a painter, ending that activity at 30. That experience led him to conclude that creators need both money and a supporter base, which he sought to provide through community, and he founded Osiro on that premise.

Business model

B2B/B2C SaaS: Osiro licenses the OSIRO platform to creators, brands and organizations that run paid membership communities, bundling the software with hands-on support from community producers.

Subscription-based platform fees for community operators, with the underlying communities themselves monetized through recurring membership subscriptions plus one-off charges for events and in-community commerce.

Traction

Investor materials cite more than seven years of work on community products. Company-published research reports that over 90% of surveyed users feel happier for having a community, and that members who register books see increased messages and reactions. Community launches announced include ALPS OUTDOOR SUMMIT, the reading community "ほんのもり" run by Bunka Tsushin, a co-creation community from Cloud Gate (operator of the "Net Novel Award"), the "Hearth Port" community led by Tomomi Isa and Nochi Kosho, and "うねり," tied to an online course with a cumulative 20,000 students.

Latest developments

In March 2026 the company announced a patent for a function visualizing community happiness, and through 2026 it shipped book-related community features including one-click book club hosting and an "e-hon" purchase option supporting selected bookstores from the online bookshelf. It continues to open new client communities and to run in-house communities, including an August 2026 announcement of a September 2026 talk event in Shibuya between Yoshio Suzuki and photographer Mikiya Takimoto for the art community ビジュツヘンシュウブ。