ミラティブ
Tokyo, JP · Public · 16 known investors
Mirrativ operates a live game streaming platform where users can broadcast and watch gameplay, alongside advertising services and live gaming events.
Also known as Mirrativ · Mirrativ, Inc. · 株式会社ミラティブ
Founders & leadership
Investors · 16
Also in the syndicate · 12
Company profile
researched Aug 2026株式会社ミラティブ (Mirrativ, Inc.) is a Tokyo-based company that develops and operates Mirrativ, a smartphone screen-sharing game streaming platform on which users can broadcast gameplay from a single phone with a few taps. The service includes "エモモ" (Emomo), an in-app 3D avatar feature that lets users stream without showing their face, and "ライブゲーミング" (live gaming), a format in which viewers can intervene in the game being streamed. The company also runs an advertising business built around Mirrativ, and a program called ミラティブスターズ that pays cash rewards to streamers based on streaming time and engagement.
Beyond its own app, the company has established a streamer platform business aimed at creators on external services such as YouTube, Twitch and TikTok. Products in this segment include CastCraft, a streaming support tool compatible with OBS, Streamlabs Desktop and XSplit that offers viewer management, text-to-speech for comments, on-screen comment display and interactive viewer-triggered effects; ぶいきゃす, a casting platform matching VTubers — particularly independent ones — with companies for promotions and collaboration products; and Rock on V, live music events combining VTubers with live bands. An AI gaming partner product, "ほへと", is also listed among its offerings.
The company was established on 2018-02-09 and is headquartered at Meguro Yamate Place 8F, 2-10-11 Meguro, Meguro-ku, Tokyo. It is listed on the Tokyo Stock Exchange Growth Market (securities code 472A) and reported capital of 566 million yen as of the end of June 2026. Group companies include the wholly owned 株式会社アイブレイド and 株式会社キャスコード.
Founding story
Founder and CEO Junichi Akagawa graduated from Keio University's Faculty of Environment and Information Studies and joined DeNA, becoming its youngest executive officer in April 2012 with responsibility for overseas business and browser game operations. In February 2018 he founded Mirrativ by acquiring the Mirrativ business from DeNA through a management buyout. In his message on the company site, Akagawa describes formative teenage experiences on self-made homepages and chat rooms in the early internet era, where shared interests in games and music expanded his world, as the basis for the company's focus on communities and places of belonging.
Business model
The company monetizes its own streaming platform and, increasingly, tools and services for streamers on third-party platforms. Stated business areas are the development and planning of the Mirrativ game streaming platform, the Mirrativ advertising business, and the live gaming business. Within the app, viewers and streamers exchange gifts, and the ミラティブスターズ program distributes cash rewards to streamers according to streaming time and audience engagement. The streamer platform segment supplies activity, monetization and growth support to creators on YouTube, Twitch, TikTok and other services through CastCraft, the ぶいきゃす VTuber casting platform and Rock on V live events.
Revenue lines identified in company materials are advertising sold to game companies on the Mirrativ platform, live gaming titles that generate in-app gifting between viewers and streamers, and the streamer platform business, which includes the CastCraft streaming tool and the ぶいきゃす casting service connecting VTubers with corporate promotion and collaboration projects.
Traction
Cumulative streamers on Mirrativ exceeded 5 million as of company figures published on its site, up from more than 4.3 million reported in November 2022. About 30% of active users are streamers, per the company's own December 2023 survey. Headcount was 22 as of February 2019, when the company stated a plan to exceed 100 by the end of that year. Cumulative funding reached approximately 9.7 billion yen following the November 2022 round.
Latest developments
In 2026 the company marked Mirrativ's 11th anniversary with a major update to PC streaming and viewing and the launch of initiatives with esports teams (announced 28 August 2026), and held an anniversary pop-up store displaying real-world versions of Emomo avatar outfits at Yurakucho Marui from 22 August 2026. It ran a Sanrio Characters collaboration with summer-vacation-themed items, and staged the Rock on V Summer Fes on 29 August 2026 as its first event with two simultaneous stages. CastCraft expanded its publisher offerings with a pre-release promotion service that builds title communities from the closed beta stage (July 2026) and a promotion program for buy-to-play games (June 2026), while ぶいきゃす ran multiple large VTuber campaigns for third-party game titles.
▸Full profile — market position, technology, go-to-market, geography, history
Market position
The company describes Mirrativ as Japan's largest smartphone game streaming platform and claims the number one position for smartphone game streamer count. Press coverage of its 2022 financing noted that MIXI and other game-related companies had entered the live gaming market that Mirrativ helped define, with live gaming positioned as offering average spending per user comparable to social games at substantially lower development cost.
Distinguishing characteristics are streaming from a smartphone alone via screen sharing, avatar-based broadcasting through Emomo that removes the need to appear on camera, and live gaming formats in which viewers participate in the streamed game. The company also highlights an unusually high creator ratio: roughly 30% of active users are themselves streamers, producing a social-network-like structure in which users move between one another's streams.
Technology
The platform is built around smartphone screen sharing, allowing gameplay to be broadcast from a single handset without additional capture hardware. Emomo generates high-quality 3D avatars inside the app with customizable appearance and outfits for face-free streaming. Live gaming titles integrate the stream with the game so viewers can act on the streamer's session; according to 2022 company statements, such titles cost roughly 15-40 million yen to bring to release. CastCraft integrates with mainstream broadcasting software including OBS, Streamlabs Desktop and XSplit to provide viewer management, comment text-to-speech, on-screen comment overlays and interactive effects triggered by viewer actions. The company also lists an AI gaming partner, "ほへと", and publishes engineering material through its Mirrativ Tech Blog.
Go-to-market
User acquisition has combined mass marketing with community and IP-driven programming: the company launched its first television campaign in the Kanto region in February 2019 and has said proceeds from later financing would fund marketing, live gaming investment and hiring. It runs frequent collaboration campaigns with game titles and character IP — examples include Sanrio Characters tie-ins, and ぶいきゃす campaigns involving dozens of VTubers around titles such as オバケイドロ2, ブループロトコル：スターレゾナンス, ハートピアスローライフ and 勝利の女神：NIKKE — along with offline activations such as an 11th-anniversary pop-up store at Yurakucho Marui and the Rock on V live music events. For game publishers, CastCraft has added streamer-led pre-release and closed beta promotion offerings and promotional programs for premium (buy-to-play) titles.
End users are smartphone gamers in Japan who want to broadcast or watch gameplay, including those who prefer avatar-based streaming and those seeking to earn income from streaming through the ミラティブスターズ program. On the business side, customers include game publishers and other companies buying Mirrativ advertising or commissioning VTuber casting through ぶいきゃす, plus streamers on YouTube, Twitch, TikTok and similar platforms who use CastCraft.
Geography
The company is headquartered in Meguro-ku, Tokyo, and its platform and campaigns are focused on Japan. Global expansion was cited as a use of proceeds for the February 2019 financing, and the streamer platform business targets streamers worldwide on YouTube, Twitch and TikTok.
History
Mirrativ, Inc. was founded on 9 February 2018 when Junichi Akagawa carved the Mirrativ business out of DeNA via a management buyout. In August 2018 the Mirrativ app added the Emomo 3D avatar feature, enabling VTuber-style broadcasting from a smartphone, and in May 2019 an avatar karaoke streaming function was introduced. The company raised 3.5 billion yen in February 2019 from institutional and angel investors and ran its first television commercial in the Kanto region from 15 February 2019, while planning to grow headcount from 22 people to more than 100 during that year. A further 3.4 billion yen financing combining a third-party share allotment with bank loans was announced in November 2022, bringing cumulative funding to roughly 9.7 billion yen. The company subsequently listed on the Tokyo Stock Exchange Growth Market under code 472A, and by 2026 marked the platform's 11th anniversary with a PC streaming and viewing update and the start of initiatives with esports teams.
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Competitors · 1
by search overlapCompanies competing with ミラティブ for the same Google search keywords, organic and paid, via search-intersection analysis.
Timeline · 11
launches, deals, and filingsThe company announced its first Rock on V event staged on two concurrent stages, held on 29 August 2026.
For Mirrativ's 11th anniversary the company announced a large update to PC broadcasting and viewing and the start of activities with esports teams.
A pop-up store opened on 22 August 2026 displaying real-world versions of outfits from the Emomo avatar system.
Mirrativ ran a collaboration with Sanrio Characters featuring summer-vacation-themed collaboration items.
CastCraft began offering a promotion service that forms communities around a game title from the closed beta test stage, driven by streamers.
CastCraft introduced a new promotional offering for premium, one-time-purchase games aimed at creating signature streamers for a title.
Third-party share allotment to MIXI, Marui Group, KDDI Open Innovation Fund 3, Bandai Namco Entertainment and Sega, combined with loans from Shoko Chukin Bank, MUFG Bank, Mizuho Bank and Resona Bank, for a total of 3.4 billion yen. Cumulative funding reached about 9.7 billion yen. Funds were directed to live gaming investment, marketing and hiring.
The Mirrativ app gained a feature allowing users to stream karaoke performances as their avatar.
As the first step of its post-financing marketing push, the company began broadcasting its first TV commercial in the Kanto area.
Announced a third-party share allotment totaling 3.5 billion yen for the round, of which 3.1 billion yen had been contracted as of 12 February 2019, from JAFCO, Global Brain, YJ Capital, Globis Capital Partners, Itochu Technology Ventures and ANRI, plus prior investment from angel investors including Yusuke Sato, Kensuke Furukawa and Ryotaro Nakagawa. Proceeds were earmarked for marketing, R&D expanding the Emomo avatar world, new businesses and global expansion.
Mirrativ added the 3D avatar function Emomo, allowing users to stream in VTuber style using only a smartphone.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
▸Research sources · 8
primary sources listed
- ミラティブmirrativ.co.jp · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does ミラティブ do?
- Japanese operator of Mirrativ, a smartphone screen-sharing game streaming platform with avatar broadcasting and live gaming.
- Who founded ミラティブ?
- ミラティブ was founded by Junichi Akagawa.
- Who are ミラティブ's investors?
- ミラティブ's investors include Global Brain, Globis Capital Partners, KDDI Open Innovation Fund, Z Venture Capital.
- Where is ミラティブ headquartered?
- ミラティブ is headquartered in Tokyo, JP.