J-CAST

What J-CAST does

J-CAST, Inc. (株式会社ジェイ・キャスト) is a privately held Japanese digital media company founded on August 25, 1997, by former Asahi Shimbun journalist Masao Ninagawa. The company operates a multi-vertical portfolio of owned online media properties anchored by J-CASTニュース (general news) and extended through J-CASTトレンド (trends), J-CAST会社ウォッチ (corporate coverage), BOOKウォッチ (books), Jタウンネット (regional coverage across all 47 Japanese prefectures), and 東京バーゲンマニア (women's lifestyle/deals). Audience scale has built materially over time — J-CASTニュース hit a record 30 million monthly unique users as of August 2021, and 東京バーゲンマニア has won the LINE NEWS AWARDS grand prize four consecutive years (2018–2021). Complementary service lines include commissioned media production (websites, PR, internal newsletters) for enterprise, government, and education clients, and a proprietary geolocation-based area-targeting technology that dynamically serves location-relevant content.

The company historically ran a cloud-based learning management system called オール優 (Allu) — a Tier-4-data-center-hosted LMS with responsive design, video streaming, progress tracking, and over 900,000 cumulative users — sold via enterprise Smart Plan (¥32,780/month), individual オール優Biz (¥1,100/month), and fixed-fee Quick e-Learning packages. This entire learning business was transferred to TOASU, part of the Gakken Group, on April 1, 2024, returning J-CAST to a media-services focus. In January 2025, the company launched ゼロまる (Zero-Maru), a consumer-facing personality-measurement service built around a circle-drawing interaction.

Revenue derives from three streams: (1) advertising on the free, ad-supported consumer media portfolio (display ads and sponsored content); (2) commissioned production sold directly to enterprises and government institutions — named logos include Dentsu, Hakuhodo, TOPPAN Holdings, Zenyaku Kogyo (pharmaceutical), the Ministry of Internal Affairs and Communications, the Ministry of Foreign Affairs, Ueno Gakuen, and Nihon University; and (3) subscription LMS revenue (now divested). Distribution combines owned domains (j-cast.com, j-town.net, bg-mania.jp, zero-maru.com) with major third-party syndication via LINE NEWS. The company employs 51–100 people, is headquartered in Chuo-ku, Tokyo, and has registered capital of ¥100 million with no disclosed external funding.

Name

J-CAST

Legal name

株式会社ジェイ・キャスト

Website

https://j-cast.co.jp

Company type

Private

Founded year

1997

Operating status

Operating

Headcount range

51–100 employees

Short description

J-CAST is a privately held Japanese digital media company founded in 1997 that operates a multi-vertical portfolio of ad-supported online media sites (news, trends, corporate, books, regional coverage across all 47 prefectures, and women's lifestyle deals), and provides commissioned media production and geolocation-based content services to enterprises, government institutions, and educational organizations in Japan.

Ownership category

akta.pro rank

Product category

Online News Media

NAICS

Newspaper Publishers (513110), Newspaper, Periodical, Book, and Directory Publishers (5131)

SIC

Newspapers: Publishing Or Publishing & Printing (2711)

akta.pro primary industry

E-book Subscription & Bundling Services (MPAJAMAB)

Keywords

• Digital news media
• Online content publishing
• Corporate e-learning
• Regional journalism
• Media production services

Headquarters

HQ city

Nibancho

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Digital Commerce or Content

Cost components

Personnel, Technology or R&D, Infrastructure, Marketing or Sales, Operations

Revenue model

1. Online News Media / Digital Advertising: J-CAST operates news and lifestyle websites (J-CASTニュース, 東京バーゲンマニア, Jタウンネット) generating revenue through digital advertising (display ads, sponsored content) and reader traffic monetization. The company achieved a record 30 million monthly unique users (as of August 2021).
2. E-Learning / LMS Services (オール優): Cloud-based e-learning LMS (オール優) sold to enterprise customers. Pricing starts at ¥29,800/month (Smart Plan) and ¥1,100/month (オール優Biz individual plan). Also includes professional training content (情報セキュリティ, レスポンシブル・ケア, 危険予知活動, etc.).
3. Accepted Media / Commissioned Services: Contracted media production services for corporations, schools, and government agencies, including website development, public relations materials, internal newsletters, and editorial services. Revenue is project-based.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels5 records

Core offering

J-CAST operates a portfolio of owned-and-operated Japanese digital news and lifestyle media properties (J-CAST News, J-CAST Trend, J-CAST Company Watch, BOOK Watch, J-Town Net covering all 47 prefectures, Tokyo Bargain Mania, and the Zero-Maru personality measurement service), monetized through digital advertising and reader traffic. The company also provides enterprise e-learning (formerly via the Allu LMS), contracted media production for corporate and government communications, and area-targeting geolocation content delivery technology.

Product overview

J-CAST operates a multi-platform digital media portfolio alongside enterprise e-learning solutions. The media side centers on J-CASTニュース (general news), supplemented by verticals for trends (J-CASTトレンド), companies (J-CAST会社ウォッチ), books (BOOKウォッチ), local 47-prefecture coverage (Jタウンネット), and women's lifestyle deals (東京バーゲンマニア), plus the ゼロまる personality measurement service. The e-learning arm is anchored by the cloud-based Allu LMS (オール優), offered in multiple tiers: the standard enterprise plan, the self-service スマートプラン, and the individual-focused オール優Biz subscription. Additional modules include information security courses, the quick e-learning packaging service (クイックeラーニング), and Responsible Care factory safety content. Supporting services include outsourced media production, geolocation-based area targeting, and member services.

Differentiator

Problem solved

Functional benefit

Brands

• オール優: クラウド型eラーニング学習管理システム
• オール優Biz
• クイックeラーニング
• ASUBeTO（アスビト）

Products and services

• J-CAST News (J-CASTニュース) Comprehensive online news site delivering political, social, and trending news from an original editorial perspective, covering political scandals to viral topics. Reached a record 30 million monthly unique users as of August 2021.
• J-CAST Trend (J-CASTトレンド) Trend coverage site featuring global fashion, hidden local gems, and notable new products, from niche discoveries to worldwide phenomena.
• J-CAST Company Watch (J-CAST会社ウォッチ) Corporate-focused editorial site covering company stories and drama, providing useful information for office workers about businesses.
• BOOK Watch (BOOKウォッチ) Book information site where publishers directly introduce their books, supplementing J-CAST news editorial coverage.
• J-Town Net (Jタウンネット) Regional and city information platform covering all 47 Japanese prefectures, delivering local news, hidden spots, and local culture within a 100-meter radius of users.
• Tokyo Bargain Mania (東京バーゲンマニア) Lifestyle information site for women focused on bargain hunting, discount sales, 100-yen shop finds, and cost-effective beauty products, updated daily. LINE NEWS AWARDS Grand Prize winner four consecutive years (2018-2021).
• Zero-Maru (ゼロまる) Personality measurement service where users draw circles; analyzes and measures the heart/mind of the user.
• Commissioned Media Business (受託メディア事業) Outsourced media services supporting corporate and educational institution PR operations, including website development, publicity magazines, and in-house newsletters across diverse industries. Used by government ministries (Ministry of Internal Affairs and Communications, Ministry of Foreign Affairs) and enterprises.
• Area Targeting Business (エリア・ターゲティング事業) Geolocation-based content targeting technology that dynamically delivers content based on the user's access location, enabling location-aware media distribution across J-CAST's regional and national properties.
• Member Services Business (会員サービス事業) Membership services provided by J-CAST to registered members, offering exclusive content and member-only benefits across the J-CAST media portfolio.

Named customers10 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Two partnerships are on record, tiered major and medium.

• 株式会社TOASU (TOASU, 学研グループ) — Learning business transfermajorStrategic or Co-development Partner · 1 January 2022Effective April 1, 2024, J-CAST's learning business operations were transferred to TOASU (part of the Gakken group). J-CAST previously operated the learning segment as a standalone business offering e-learning and training services, which is now integrated into TOASU's portfolio.
• ウィルソン・ラーニング ワールドワイド株式会社 (Wilson Learning Worldwide)mediumTechnology or Integration · 1 October 2021Wilson Learning Worldwide's digital learning content (self-learning programs and performance fulfillment courses) is integrated into J-CAST's proprietary e-learning LMS platform 'オール優', expanding the course library to 6 additional programs. This partnership enhances the depth of J-CAST's corporate training offering.

Scale indicators3 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• ITmedia: ITmedia is operated by Impress Corporation and runs a portfolio of Japanese digital media sites covering tech, business, and lifestyle (e.g., @IT, ITmedia News, ITmedia Mobile). It is directly comparable to J-CAST as a multi-property digital media operator targeting Japanese audiences with ad-supported content.
• Hatena: Hatena operates Hatena Bookmark, Hatena Blog, and related user-generated and editorial content services in Japan. It is comparable to J-CAST as a Japanese digital media/community platform with advertising and consumer services revenue models.
• NewsPicks (Uzabase): NewsPicks is a Japanese business and news commentary platform operating on a freemium subscription model. It is a direct peer to J-CAST as a Japan-focused digital news/media company monetizing through ads, subscriptions, and enterprise services.
• ASCII (KADOKAWA): ASCII.jp is a Japanese digital media property operated under the KADOKAWA group covering tech, gaming, and lifestyle. It is comparable to J-CAST Trend and J-CAST News as a Japanese digital media brand serving consumer and technology audiences.
• Impress Corporation: Impress Corporation runs multiple B2B and B2C digital media sites (ITmedia, Watch, Think IT) and produces e-learning and events. It is a direct peer to J-CAST's multi-property digital media and corporate content services model.

Broad incumbents

• SmartNews: SmartNews is a major Japanese-headquartered news aggregation platform that distributes publisher content (including J-CAST) to millions of users. It is a broad incumbent peer that competes for J-CAST's audience attention and advertising dollars in the Japanese digital news market.
• LINE Yahoo Corporation: LINE Yahoo operates Yahoo Japan News, LINE NEWS (where J-CAST is a content partner), and a large advertising platform in Japan. It is a broad incumbent that competes with J-CAST for digital news audience share and ad budgets while simultaneously serving as an important distribution channel.
• Nikkei Digital Media: Nikkei operates Japan's leading business news brand (Nikkei.com) and a broad digital media portfolio with subscription and advertising revenue. It is a broad incumbent peer to J-CAST News with significantly larger scale and brand strength in Japanese digital news.

Others

• Benesse Corporation: Benesse is a major Japanese education and learning company operating e-learning platforms, publishing, and corporate training content (e.g., Udemy Business in Japan). It is thematically comparable to J-CAST's former Allu LMS learning business, which is now under Gakken's TOASU.
• Gakken Holdings: Gakken Holdings acquired J-CAST's learning business via TOASU in April 2024 and operates major e-learning and publishing assets in Japan. It is comparable as the acquirer of J-CAST's divested e-learning unit and as a Japanese learning content and media operator.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Instagraminstagram.com/bargain_mania

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about J-CAST