What Heibonsha does

Heibonsha (株式会社平凡社) is a privately held Japanese publishing company founded in 1914 and headquartered in Kanda-Jinbocho, Chiyoda-ku, Tokyo. The company publishes a broad portfolio of encyclopedias, reference works, academic monographs, literary paperbacks, atlases, art and nature photography books, and cultural magazines. Its flagship product lines include the World Encyclopedia (世界大百科事典) — available in print, electronic dictionary, and Kotobank digital formats — alongside long-running series such as the Toyo Bunko (東洋文庫, since 1927), the Heibonsha Library paperback series (1,000+ volumes), the Heibonsha Shinsho non-fiction series (1,000+ volumes), the Bessatsu Taiyo (別冊太陽) special-issue magazine on art, culture, and history, and the SWAN ballet magazine. New 2024-2025 releases include the commemorative Showa 100th Anniversary Atlas, a 28-year-revised Earth Science Dictionary with ~22,000 entries, and new editions of the Showa history series.

The company operates a single revenue stream of one-time book and periodical sales, with pricing ranging from approximately ¥960 for new-book format paperbacks to ¥13,200 for premium illustrated works like 樹木譜. Distribution spans all major Japanese channels: Amazon Japan, Rakuten, 7-net, Honya Club, Kinokuniya, Maruzen, independent bookstores nationwide, and direct sales via heibonsha.co.jp, plus the Toyo Bunko reader club for series subscribers. The marketing mix is digital-first-light, relying on a Twitter account (@heibonshatoday), the web Taiyo YouTube channel (launched December 2021), RSS feeds, and frequent author talk events at partner bookstores such as Taishodo Daikansho.

The company is privately held with no disclosed parent, subsidiaries, or external funding; related entities include the Heibonsha Map Publishing subsidiary (平凡社地図出版) and affiliated foundation (下中記念財団), and Heibonsha maintains industry association memberships in the Japan Book Publishers Association and 出版梗会. Headcount is small (11-50 employees) and operations are concentrated in the Japanese domestic market, with no disclosed international expansion.

Name

Heibonsha

Legal name

株式会社平凡社

Website

https://heibonsha.co.jp

Company type

Private

Founded year

1914

Operating status

Operating

Headcount range

11–50 employees

Short description

Heibonsha is a privately held Japanese publisher founded in 1914 and headquartered in Tokyo, producing encyclopedias, reference works, literary paperback series, atlases, and cultural magazines for general readers and academic researchers across the Japanese domestic market.

Ownership category

akta.pro rank

Product category

Book Publishing

NAICS

Book Publishers (51313)

SIC

Books: Publishing Or Publishing & Printing (2731)

akta.pro primary industry

Children’s Reference & Encyclopedias (Dictionaries, Atlases) (EDAGAIAD)

akta.pro secondary industry

eBook & Digital Reading Platforms (BPAMAJAK)

Keywords

• Book publishing
• Encyclopedias and reference
• Academic publishing
• Literary paperback series
• Educational textbooks

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Others

Revenue model

1. Book Sales: Direct sales of published books and periodicals to end consumers through physical and online bookstores.

Pricing tiers

Distribution channels4 records

Marketing channels5 records

Core offering

Heibonsha is a Japanese publisher that produces and sells encyclopedias, reference works, academic books, literary paperback series, atlases, and culturally focused magazines. Its catalog spans long-running series such as Toyo Bunko, Heibonsha Library, Heibonsha Shinsho, and Bessatsu Taiyo, alongside flagship works such as the World Encyclopedia (世界 大百科事典), the Earth Science Dictionary, and the Showa 100 Years Atlas. Books are distributed in print, electronic dictionary, and ebook formats through Japanese retailers, physical bookstores, and the company's own website.

Product overview

Heibonsha (平凡社) is a Japanese publishing company founded in 1914, headquartered in Kanda-Jinbocho, Tokyo. The company operates a multi-series publishing model producing books across humanities, social sciences, natural sciences, art, and reference works. Key product lines include the Toyo Bunko (Oriental Library) series of translated Western classics, the Heibonsha Library literary paperback series (1,000+ volumes), the Heibonsha Shinsho non-fiction new-book series (1,000+ volumes), and the Bessatsu Taiyo (Special Issues of Taiyo) magazine series. Heibonsha also publishes the World Encyclopedia in multiple formats (print, electronic, digital), the SWAN ballet magazine, and Corona Books. The company's product portfolio spans encyclopedias, atlases, plant and nature photography books, art publications, and educational materials, with digital offerings including e-books and Kotobank integration.

Differentiator

Problem solved

Functional benefit

Products and services

• Toyo Bunko (Toyo Bunko) A long-running book series of translated Western classics and scholarly works in Japanese, operated as part of Heibonsha's publishing catalog.
• Heibonsha Library (Heibonsha Library) A literary paperback series publishing classic and contemporary literary works, with the catalog surpassing 1,000 volumes.
• Heibonsha Shinsho (Heibonsha Shinsho) A compact non-fiction new-book (shinsho) series covering humanities, social sciences, and current affairs, with over 1,000 volumes published.
• Bessatsu Taiyo (Bessatsu Taiyo) A special-issue magazine series covering art, culture, history, and current topics with high-quality visual presentations.
• Corona Books (Corona Books) A book series featuring essays, cultural criticism, and specialized academic works.
• SWAN Magazine A ballet magazine covering dance, performance arts, and related cultural topics.
• World Encyclopedia (World Encyclopedia) Heibonsha's comprehensive world encyclopedia available in print, electronic dictionary versions (iOS/macOS, Android, Windows), and online via Kotobank.
• Earth Science Dictionary (Earth Science Dictionary) An earth science encyclopedia incorporating the latest findings in earth science, featuring approximately 22,000 entries with about 3,000 new additions.
• Showa 100 Years Atlas (Showa 100 Years Atlas) A commemorative atlas marking the 100th year of the Showa era (2025), featuring Japanese maps, prefecture maps, timelines, and statistical data showing 100 years of change.
• Large-Print Atlas of Japan, New Revised 4th Edition (Large-print Atlas Japan Map Book New Revised 4th Edition) A large-print Japanese atlas designed for readability with furigana annotations on all place names.
• Large-Print World Atlas, New Revised 4th Edition (Large-print World Map Book New Revised 4th Edition) A large-print world atlas designed for readability.
• Hayashi Ryohei's Soccer Viewing Technique 2 (Hayashi Ryohei Soccer Viewing Method 2) A title covering 2026 World Cup national teams, European major club tactics, notable players, and recommendations, by commentator Hayashi Ryohei.
• New Edition of Showa History in World History (New Edition: Showa History in World History) A new edition analyzing why Japan missed opportunities to avoid war and was manipulated by Western powers, from a world history perspective, by Hando Kazutoshi.
• Difficult Place Names Made Easy to Read: Furigana Japanese Map Book (Difficult Place Names Easy to Read Furigana Japanese Map Book) A Japanese map book with furigana on every place name across prefecture maps, including trivia columns and difficult place name rankings.
• Illustrated Encyclopedia of Sorcery and Science in Traditional Court Culture (Illustrated Encyclopedia of Sorcery and Science in Yūsoku Kojitsu) A reference work explaining the relationship between sorcery and science in Heian-period yūsoku kojitsu, organized by religious system with text sources and abundant illustrations.
• Toyo Bunko Reader Club (Toyo Bunko Reader Club) A dedicated reader membership program for the Toyo Bunko translated-classics series, providing ongoing access and engagement with the series.

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Eight partnerships are on record, tiered minor.

• 代官山蔦屋書店minorStrategic or Co-development Partner · 27 March 2025Co-hosting book launch events and author talk sessions. 代官山蔦屋書店 serves as the venue partner for events like the 『別冊太陽 世界自然遺産30周年 環白神の世界』 launch, with joint event organization and online streaming via Zoom.
• 環白神エコツーリズム推進協議会minorStrategic or Co-development Partner · 27 March 2025Collaborative partnership for the publication 『世界自然遺産30周年 環白神の世界』. The council (consisting of municipalities in Aomori and Akita prefectures) provided cooperation and support for the book content.
• 東京印書館minorOthersListed in the company links section as a related company.
• 平凡社地図出版minorOthersRelated company under the Heibonsha group, specializing in map publishing.
• 下中記念財団minorOthersListed in the company links section as a related foundation.
• 日本書籍出版協会minorOthersIndustry association membership - Japan Book Publishers Association.
• 出版梓会minorOthersListed in the company links as a related industry organization.
• 出版デジタル機構minorOthersDigital publishing infrastructure partner for ebook distribution and services.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Hakubunkan Shinsha: Japanese publisher with history dating to 1887, focused on reference works, encyclopedias, and educational materials. Similar long-standing reference publishing heritage to Heibonsha.
• Shinchosha: Major Japanese publisher known for Shincho magazine, literary fiction, and non-fiction. Operates in similar literary and cultural publishing space as Heibonsha's Heibonsha Library series.
• NHK Publishing: Publishing arm of NHK, Japan's public broadcaster, producing reference books, cultural guides, and educational materials. Operates in adjacent reference and educational publishing space with similar non-fiction depth.
• Shogakukan: Major Japanese publisher producing the Shogakukan World Encyclopedia and extensive reference, educational, and manga titles. Larger player with directly overlapping reference product lines but far broader scope.
• Bungeishunjū: Major Japanese publisher of Bungei Shunju magazine, literary fiction, and quality non-fiction. Comparable mid-to-large Japanese publisher with cultural/literary focus.
• Kodansha: Japan's largest general publisher, producing magazines (Gendai), manga, books, and digital content. Operates in the broader Japanese publishing space at much larger scale with a wider portfolio than Heibonsha's specialized academic/reference focus.

Direct peers

• Iwanami Shoten: Founded in 1913, Iwanami Shoten is Japan's leading academic and reference publisher, publishing the Iwanami World Encyclopedia and classic scholarly series like Iwanami Shinsho. Most directly comparable to Heibonsha in editorial focus, audience, and long-running series model with similar mid-sized lean operations.
• Seidosha: Japanese publisher focused on academic and intellectual non-fiction, including translations of Western scholarly works. Similar mid-sized academic publisher profile with comparable humanities and cultural studies focus.
• Chikuma Shobo: Japanese academic and literary publisher known for the Chikuma Academic Library series and quality humanities/social-sciences non-fiction. Similar mid-sized publisher profile with comparable scholarly editorial focus.
• Kawade Shobo Shinsha: Japanese publisher specializing in literary fiction, cultural criticism, and translated Western works. Similar mid-sized publisher with comparable humanities and cultural focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights5 records

Customer concentration

• Xx.com/heibonshatoday

Revenue estimate

Valuation estimate

Number of profiles

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 Heibonsha