J-Stream

http://www.stream.co.jp/
https://www.linkedin.com/company/j-stream-inc./

J-Stream, a privately owned company headquartered in Japan, was founded in 1997 and employs approximately 650 individuals. The company reported $78.0M in revenue as of 2024 and functions as a tier 2 media tech buyer, specializing in connectivity and distribution services. It operates as a Japanese Content Delivery Network (CDN) and Online Video Platform (OVP) provider.

2025 Revenue

Founded

1997

Headcount

641

Headquarters

Japan

Primary Segment

Connectivity and distribution services

Ownership

Publicly Owned

Deployments

News Summary:

J-Stream and Sakura Internet agreed on April 28, 2026, to collaborate on strengthening content delivery infrastructure for the Japanese market, planning a joint delivery platform within Sakura Internet's network that incorporates edge servers for J-Stream's CDNext CDN service. Previously, on January 22, J-Stream's subsidiary Crossco Co. Ltd. launched comprehensive web seminar AX, focusing on insight analysis utilizing seminar video information and lecture note services. Earlier, on January 21, J-Stream supported 医療法人社団永生会永生病院 by video-izing patient explanations for artificial knee joint replacement surgery, aiming to reduce physician burden and promote task shifting. This followed an announcement on January 19 that J-Stream's subsidiary VideoStep Co. Ltd. and Skillnote formed a business alliance to launch a video manual creation and management service, "VideoStep" OEM, to address human resource development and skill transfer challenges in manufacturing.

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J-Stream offers 3 products in the media tech and enterprise tech industries. J-Stream's product portfolio comprises of connectivity and distribution services and conferencing, ecommerce and customer journey technology.

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J-Stream's revenues were less than $100M in 2024. Caretta Research has split J-Stream's revenue into 3 different product categories.

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Apr

28th

2026

00:27

Partnerships and Alliances

Sakura Internet partners J-Stream to strengthen content delivery infrastructure

Sakura Internet and J-Stream have agreed to collaborate on strengthening content delivery infrastructure for the Japanese market. The companies plan to build a joint delivery platform within Sakura Internet's network, incorporating edge servers for J-Stream's CDN service, CDNext.

Telecompaper

Jan

22nd

2026

01:00

New Offerings, Artificial Intelligence, B2B Tag

Crossco Co., Ltd., Realizes Comprehensive Web Seminar AX ~ New Development of Insight Analysis Utilizing Seminar Video Information and Lecture Note Service ~

[Translated] J Stream Co., Ltd.J Stream Co., Ltd. (Tokyo Stock Exchange Growth: 4308, President and CEO: Toshio Ishimatsu, hereinafter “J Stream”) subsidiary Crossco Co., Ltd. (Headquarters: Minato-ku, Tokyo; President and CEO: Hiroyuki Nagasawa) has realized

Stream Japan

Jan

21st

2026

21:30

Emerging Tech, B2B Tag

Video-izing surgical explanations, reducing physicians' burden and allocating limited time to more patients ~ Jストリーム supports the business process transformation of 医療法人社団永生会永生病院 with videos ~

[Translated] 株式会社ＪストリームAs physician work style reform becomes full-scale and controlling overtime work and promoting task shifting become urgent, 株式会社Ｊストリーム (東証グロース：4308代表取締役社長：石松俊雄, hereinafter "Ｊストリーム") supported the business process transformation of 医療法人社団永生会永生病院 (東京都八王子市) by video-izing patient explanations for artificial knee joint replacement surgery through video and Web production.

Stream Japan

Jan

21st

2026

06:09

B2B Tag

Delivering Experiential Value with Video Incentives: How to Break the Mold of Must-Buy Campaigns

[Translated] Must-buy campaigns are a staple sales promotion tactic. However, have you felt challenges such as "Even if the number of applications increases, it does not lead to sales or repeat rates" or "The effect is difficult to see relative to the cost"? This article explains "video incentives" as a new method to break the stagnation of must-buy campaigns.

Stream Japan

Jan

19th

2026

20:30

New Offerings

VideoStep and Skillnote Announce Business Alliance, Launching Video Manual Creation and Management Service "VideoStep" OEM Provision to Comprehensively Solve Human Resource Development and Skill Transfer Issues in Manufacturing Sites

[Translated] J Stream Co., Ltd.VideoStep Co., Ltd. (Head Office: Minato-ku, Tokyo; Representative Director: Tomomasa Takeji), a subsidiary of J Stream Co., Ltd. (Tokyo Stock Exchange Growth: 4308; President and Representative Director: Toshio Ishimatsu; hereinafter, J

Stream Japan

Jan

13th

2026

06:30

Emerging Tech, B2B Tag

“J-Stream Equipmedia” Updates Video Viewing Analysis Function

[Translated] J-Stream Inc. (Tokyo Stock Exchange Growth: 4308, President: Toshio Ishimatsu, hereinafter J-Stream) has updated the video viewing analysis function of its corporate video sharing and distribution platform “J-Stream Equipmedia (hereinafter, EQ)”, enhancing external linkage and operability through API expansion and a revamped aggregation screen. Key points of the video viewing analysis function update 1.

PR TIMES

Dec

18th

2025

03:23

Emerging Tech, B2B Tag

Case Study: Seminar Improvement (Mitsubishi UFJ Trust and Banking Corporation) - J-Stream

[Translated] Titled "Deepening the Purpose of Work Conference," the 2025 event featured a pseudo-live*1 seminar with discussions by internal and external experts on the themes of human capital management and office transformation. J-Stream provided comprehensive support, from building the seminar page using Webinar Stream, to handling distribution and management, and even planning and producing videos for distribution.

Stream (co.jp)

Dec

2nd

2025

06:30

Solving the “Invisible Wall” Between Venue and Online Participants: Launch of “Interaction UNIT”

[Translated] J-Stream Inc. (Tokyo Stock Exchange Growth: 4308, President and CEO: Toshio Ishimatsu, hereinafter J-Stream) has launched “Interaction UNIT,” a web application that enhances the participant experience at hybrid events such as medical lectures.

Niconico

Dec

1st

2025

18:30

Emerging Tech

Solving the “Invisible Wall” Between Venue and Online Participants: Launch of “Interaction UNIT” ~ Maximizing Unity, Satisfaction, and Data Utilization in Hybrid Events such as Medical Lectures ~

[Translated] J-Stream Co., Ltd.J-Stream Co., Ltd. (Tokyo Stock Exchange Growth: 4308, President and Representative Director: Toshio Ishimatsu, hereinafter J-Stream) has launched the “Interaction UNIT,” a web application that enhances the participant experience in hybrid events

Stream (co.jp)

Nov

19th

2025

06:30

Emerging Tech, B2B Tag

J-Stream Equipmedia, a Video Sharing and Distribution Platform for Corporations, Enhances Web Accessibility Support

[Translated] J-Stream Inc. (Tokyo Stock Exchange Growth: 4308, President and Representative Director: Toshio Ishimatsu, hereinafter J-Stream) has enhanced web accessibility support for the "video player" and "EQ portal function" of its video sharing and distribution

Niconico

Nov

19th

2025

01:01

Partnerships and Alliances, Advanced Manufacturing, B2B Tag

Technical Cooperation for Video Distribution at "QUNOG 33 Meeting"

[Translated] J-Stream Inc. (Tokyo Stock Exchange Growth: 4308, Headquarters: Minato-ku, Tokyo, President: Toshio Ishimatsu, hereinafter "J-Stream") will provide technical cooperation for video distribution at the "QUNOG 33 Meeting" held in Tamana City, Kumamoto Prefecture on

PR TIMES

Nov

18th

2025

18:30

Emerging Tech, B2B Tag

Technical Cooperation for Video Streaming at "QUNOG 33 Meeting"

[Translated] J-Stream Co., Ltd.J-Stream Co., Ltd. (Tokyo Stock Exchange Growth: 4308, Headquarters: Minato-ku, Tokyo, President and Representative Director: Toshio Ishimatsu, hereinafter "J-Stream") will provide technical cooperation for video streaming at the "QUNOG 33 Meeting" to

Stream (co.jp)

J-Stream's customers primarily consist of advertising, marketing, media agencies and telecoms companies. Examples of J-Stream's customers include Lumen Technologies, Jupiter Telecommunications and Avex. Examples of J-Stream's suppliers include Roland Professional and Amazon Web Services (AWS).

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