G4M3Rz
2 known investors
Japanese esports startup running a gamer friend-matching app, a play-with-streamers platform, and a game-streamer talent agency.
Also known as G4M3RZ inc. · 株式会社G4M3RZ
Founders & leadership

Investors · 2
Also in the syndicate · 1
Company profile
researched Aug 2026株式会社G4M3RZ (G4M3RZ inc.) is a Tokyo-based startup operating in the esports and gaming community space. Its core product, the "G4M3RZ" app, is a friend-matching service for gamers: users build a gaming profile (a "gaming portfolio") covering play style and typical play hours, then use search functions to find compatible players and message them to team up. A second service, "GGwith," is a platform through which users can buy tickets to play games together with streamers and professional esports players; it was released in beta in March 2023.
The company also runs "TEAM G4M3RZ," a talent/liver agency assembling game-streaming talent formed via audition, with content, merchandise and event activity around its streamers. In June 2023 it began offering marketing support to companies targeting Generation Z, using its esports and streamer assets. The company states its mission as activating the gamer community so that anyone can enjoy games.
G4M3RZ was incorporated on 2022-08-17 and is headquartered in the Shibuya Dogenzaka Tokyu Building, 1-10-8 Dogenzaka, Shibuya-ku, Tokyo. Representative director and president is Hiroto Sakai (酒井大翔), with Eiji Shiba (柴英嗣) as director and CTO. Headcount is reported at 10 or fewer.
Business model
Multi-line consumer and B2B model: a free-to-use gamer matching app, ticket sales on the GGwith platform for co-play sessions with streamers and pro players, talent management revenue from affiliated streamers via content, merchandise and events, and paid marketing support services for companies seeking to reach Gen Z and esports audiences.
Ticket sales for co-play sessions with streamers and pro gamers on GGwith, merchandise and event revenue from affiliated streamers under TEAM G4M3RZ, and fees from corporate marketing support engagements.
Traction
Reported headcount of 10 or fewer. Two seed third-party allotment financings (2022 and 2023) from institutional investors, three live service lines (G4M3RZ, GGwith, TEAM G4M3RZ), and a GGwith first-anniversary campaign in April 2024.
Latest developments
In August 2024 the company announced the first cohort of "TEAM G4M3RZ HAKKUTSU," its streamer talent program. Database profiles updated through 2026 continue to list the company as an unlisted, VC-backed operating company with a headcount of 10 or fewer.
▸Full profile — market position, technology, go-to-market, geography, history
Market position
Early-stage, VC-backed Japanese seed-stage company in the esports/gaming community segment, with a post-money valuation estimated by one database at approximately 104 million yen as of 2023-10-12; investors include Colopl Next and THE SEED CAPITAL No.1 LLP.
Combines gamer-to-gamer matching with paid access to streamers and professional players and an in-house streamer talent roster, allowing the same community to be monetized through consumer tickets, talent content and corporate marketing services.
Technology
Mobile application with gaming-profile creation, search/matching and in-app messaging. The company was selected for Microsoft for Startups in October 2022 and plans to store and use data collected by services under development on Microsoft Azure.
Go-to-market
Consumer acquisition through its mobile matching app and through affiliated streamers and professional esports players, whose audiences are monetized via GGwith co-play tickets and talent-led content; corporate clients are reached with esports- and streamer-based Gen Z marketing support offerings. Proceeds of the October 2023 round were earmarked for investment in building the esports community around G4M3RZ and GGwith and for activating the community in the new talent business.
Consumer gamers in Japan seeking compatible teammates or paid play sessions with streamers and pro esports players; game-streaming talent seeking representation; and companies wanting marketing access to Gen Z and esports audiences.
Geography
Single reported location in Shibuya-ku, Tokyo, Japan, serving Japanese gamers and streamers.
History
Founded and incorporated in August 2022. In October 2022 the company was selected for Microsoft for Startups. It raised a seed-round third-party allotment from THE SEED announced 2022-11-01, and released version 2.2.5 of the G4M3RZ app in December 2022 with additional features. The GGwith beta launched in March 2023, followed in June 2023 by the launch of Gen Z marketing support services. In October 2023 the company completed a further seed third-party allotment with Colopl Next and THE SEED as subscribers. In August 2024 it announced the first cohort of "TEAM G4M3RZ HAKKUTSU," and in April 2024 ran a first-anniversary campaign for GGwith.
Compiled by commissioned research from 7 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.
Timeline · 8
launches, deals, and filingsThe company announced the first generation of members for its TEAM G4M3RZ HAKKUTSU streamer talent program.
Announced a campaign marking the first anniversary of GGwith.
Completed a seed-round third-party allotment share issuance with Colopl Next and THE SEED as subscribers; the amount was not disclosed. Funds were directed at building the esports community via G4M3RZ and GGwith and at the new talent business.
The operator of G4M3RZ and GGwith began offering marketing support to companies targeting Generation Z.
Launched GGwith in beta, a platform allowing users to play games together with streamers and professional gamers.
The gamer friend-search app G4M3RZ released version 2.2.5, adding various new features.
G4M3RZ announced a seed-round third-party allotment share issuance subscribed by THE SEED; the amount was not disclosed.
Accepted into Microsoft's startup support program, with plans to hold and use data from services in development on Azure.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
▸Research sources · 7
primary sources listed
- 株式会社G4M3RZ|スピーダ スタートアップ情報リサーチinitial.inc · web
7 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does G4M3Rz do?
- Japanese esports startup running a gamer friend-matching app, a play-with-streamers platform, and a game-streamer talent agency.
- Who are G4M3Rz's investors?
- G4M3Rz's investors include Colopl Next.
