Hitoshizuku Inc.

What Hitoshizuku Inc. does

Hitoshizuku Inc. (ひとしずく株式会社) is a Yokohama-headquartered professional services firm operating as Japan's first PR agency dedicated exclusively to social good. Founded in 2015 by Hiroshi Kokubo, the company delivers communications and PR support to NPOs, NGOs, social enterprises, local governments, and corporations whose mandates include CSR, sustainability, and social impact. Its client roster spans major international NGOs (WWF Japan, Greenpeace Japan, IUCN-J), purpose-driven corporates (Saraya, Volvo Car Japan), and public-sector bodies (Ninomiya Town Hall, Kanagawa Housing Supply Corporation), with Earth Tree identified as its first client.

The firm's core offering is custom-scope PR and communications consulting, priced on a project basis, with multi-year engagements where appropriate. Around the core service it has built adjacent products: chart project®, a registered data-visualization platform that turns impact metrics into shareable visual assets; NPO Media Training VR, co-developed with Cocolo Works in April 2019 to provide immersive spokesperson training for non-profit leaders; and Logic Model planning support, which helps clients structure outcomes and measurement. The firm holds ISO 20121 certification (obtained January 2020) for sustainable event management.

Commercially, Hitoshizuku operates as a bootstrapped, privately held company with registered capital of ¥3,000,000 and a team of approximately nine employees, with a branch office in Odawara. Its go-to-market is relationship-driven within Japan's social-good ecosystem, reinforced through a series of formal partnerships (Seitaro Design in 2020, Future Sessions in December 2021, Gassaku in April 2022, and And Public in December 2025). No external funding rounds, acquisitions, or revenue figures are disclosed.

Name

Hitoshizuku Inc.

Legal name

ひとしずく株式会社

Website

https://hitoshizuku.co.jp

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

1–10 employees

Short description

Hitoshizuku Inc. is a Yokohama-based PR agency specializing in social-good communications for NPOs, NGOs, social enterprises, governments, and corporate CSR clients in Japan. It offers PR consulting plus adjacent products including chart project® data visualization and NPO Media Training VR.

Ownership category

akta.pro rank

Product category

Public Relations and Communications Consulting

NAICS

Public Relations Agencies (54182)

SIC

Services-Advertising (7310)

akta.pro industry

PRIMARYBPAFADAM

Social Media & Community Management (PR-led)

Business & Public Services/Marketing, Advertising & PR Services/Public Relations & Communications

Keywords

• Social good PR
• NGO communication consulting
• Sustainability communications
• Media training VR
• Data visualization art

Headquarters

HQ city

Yokohama

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. PR and Communication Consulting Services: Professional services providing public relations support, strategic communication consulting, and branding assistance to social good organizations including NPOs, NGOs, government entities, and corporations with social missions

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Hitoshizuku Inc. is a public relations agency that specializes exclusively in social good, supporting organizations and individuals seeking to improve society through strategic PR and communication services. The firm delivers end-to-end support from internal PR infrastructure development, strategic communication frameworks, and issue-resolution capability building, through to media relations, content creation, and editorial services that bring stories to society. It also operates the proprietary chart project® (a registered social-issue data visualization art initiative) and a VR-based NPO media training service co-developed with Cocolo Works.

Product overview

ひとしずく株式会社は、ソーシャルグッドを専門としたPRパートナーとして、広報的側面から社会を変えたいと願う組織や個人を支援する коммуникационサービスを提供している。主力サービスとして、PR・コミュニケーション支援、chart project®（社会課題データのグラフ線をアート作品にする独自プロジェクト）、NPO向けメディアトレーニングVR（VR技術を活用したメディアトレーニングサービス）、ロジックモデル策定支援を展開している。

Differentiator

Problem solved

Functional benefit

Products and services

• PR・コミュニケーション支援 End-to-end PR and communication support for social-good organizations (NPOs, NGOs, and companies), spanning internal PR infrastructure development, strengthening issue-resolution capability through public relations, editorial work to communicate information and stories to society, and media relations.
• chart project® A proprietary, registered-trademark art project that transforms graphs of social-issue data into positive visual artworks, communicating data both visually and emotionally to raise awareness of social issues.
• NPO向けメディアトレーニングVR VR-based media training service for NPOs and NGOs, developed in partnership with Cocolo Works through the 'バーチャル・センセイ' (Virtual Sensei) joint development. Provides immersive, simulated crisis communication training experiences.
• ロジックモデル策定支援 Companion service that develops outcome design blueprints for long-term goal achievement, organizing objectives and plans across PR activities and business operations for social-issue organizations.

Quantifiable outcome

• Supported organizations achieving significant policy changes, such as import wood biomass power generation removed from FIT eligibility
• +2 more outcomes

Named customers13 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Nine partnerships are on record, tiered core, project and supporting.

• And Public Co., Ltd. (アンドパブリック株式会社)coreStrategic or Co-development Partner · 25 December 2025Business partnership for social impact management, facilitation, public relations, and communication services. Expanding collaborative work in social good sector to maximize social impact for partner organizations.
• Harch Inc. (ハーチ株式会社)projectGTM or Marketing Partner · 1 July 2024PR and communication support for CIRCULAR STARTUP TOKYO, Tokyo metropolitan government's circular economy startup support program.
• Saraya Co., Ltd. (サラヤ株式会社)projectGTM or Marketing Partner · 1 May 2024PR support for education project 'Inochi wo Tsunagu Gakkou' and corporate communication, including media relations and factbook production.
• Gassaku Co., Ltd. (合作株式会社)coreStrategic or Co-development Partner · 1 April 2022Business partnership for regional circular economy initiatives, supporting Osaka Circular Village concept and expansion to other regions.
• Future Sessions Inc. (株式会社フューチャーセッションズ)coreStrategic or Co-development Partner · 1 December 2021Business partnership for collaborative approaches to social issues through dialogue-based session facilitation and shared commitment to social innovation.
• Volvo Car Japan Corporation (ボルボ・カー・ジャパン株式会社)projectGTM or Marketing Partner · 1 September 2021Content production support for 'Sustainable for Life' owned media platform, showcasing sustainability initiatives and values.
• Seitaro Design, Inc. (株式会社セイタロウデザイン)coreStrategic or Co-development Partner · 1 June 2020Business partnership established in 2020 to jointly operate SOCIAL DESIGN ROOM, combining creative design capabilities with public relations expertise for social good.
• Cocolo Works Corporation (株式会社ココロワークス)supportingStrategic or Co-development Partner · 1 April 2019Co-developed NPO Media Training VR service, combining VR technology with PR expertise for immersive crisis communication training.
• BSI Group Japan K.K. (BSIグループジャパン株式会社)supportingTechnology or Integration · 1 January 2019ISO 20121 certification support services, providing international standards certification for event sustainability management.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Kyodo PR (共同PR株式会社): One of Japan's largest independent PR firms with broad public relations, IR, and CSR communication services. Comparable as a Japan-based incumbent serving corporate, government, and nonprofit clients, though with a far broader portfolio than Hitoshizuku's social-good specialization.
• Burson Japan (formerly Hill+Knowlton): Japan operation of Burson (WPP-owned global PR firm) with dedicated sustainability, public affairs, and purpose communications capabilities. Comparable on social-issue and ESG communications, but with global scale and broader sector mandates than Hitoshizuku.
• FleishmanHillard Japan: Japan office of Omnicom's global PR network with a strong social-impact, ESG, and purpose-driven communications practice. Comparable on social-good messaging and stakeholder engagement, but with global resources and broader sector coverage than Hitoshizuku.
• Hakuhodo (博報堂): One of Japan's largest advertising and integrated communications groups with growing ESG/sustainability offerings through subsidiaries and CSR initiatives. Comparable as a provider of social-issue and corporate communications, but at vastly larger scale and broader scope.
• Ogilvy PR Japan: Japan arm of Ogilvy's global PR and social-marketing network with purpose-led and sustainability communications offerings. Comparable on social-good messaging, brand storytelling, and stakeholder engagement, but as part of a globally integrated creative network.
• Dentsu Public Relations (電通PRコンサルティング): Major Japanese PR consultancy within the Dentsu Group offering strategic communications, CSR/sustainability PR, and crisis communications. Comparable on ESG and sustainability PR offerings, but operates as part of a much larger diversified group rather than a niche social-good specialist.

Emerging players

• Social Marketing Inc. (ソーシャルマーケティング): Japan-based consultancy supporting purpose-driven organizations with communications, fundraising, and stakeholder engagement. Comparable as a similarly sized, mission-aligned peer focused on the social sector in Japan, though with somewhat different service mix.
• greenz.jp (グリーンズ): Japan-based media and consulting platform covering social entrepreneurs, NPOs, and sustainability — Hitoshizuku's president has been featured on greenz.jp. Comparable as an ecosystem participant in Japan's social-good sector, though operating as a media/editorial platform rather than a PR agency.

Peers

• Edelman Japan: Japan office of Edelman, the global PR firm with a leading sustainability and ESG practice (including the Trust Barometer and climate communications). Comparable on social-issue and sustainability communications, but embedded in a global network rather than a Japan-localized niche agency.

Direct peers

• And Public Co., Ltd. Japanese firm specializing in social impact management and facilitation for organizations creating social value. Most directly comparable peer — Hitoshizuku entered a strategic alliance with And Public in December 2025 specifically to expand joint work in social-good impact management, PR, and communications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/hitoshizuku_pr
• Instagraminstagram.com/hitoshizuku_pr
• LinkedInlinkedin.com/company/hitoshizukuinc

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 Hitoshizuku Inc.