Greenroom
Greenroom is a Tokyo-based sustainability media and research company operating the GREEN NOTE consumer app, the GREEN NOTE PRO enterprise subscription, and a 200,000+ member consumer research panel serving Japanese corporations, regional banks, and municipal governments.
- Company typePrivate
- Founded2020
- HeadquartersShinjuku, Japan
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Greenroom does
Greenroom is a Japanese sustainability-focused digital media and research company founded on September 1, 2020 by Yamazaki Shuhei and headquartered in Tokyo. Its core product is GREEN NOTE, a consumer-facing mobile application (iOS and Android) and online media platform that curates domestic and international sustainability/SDG news, enables users to submit ideas to corporations through co-creation projects, and runs a point system redeemable via Kuradashi coupons and donations. A separate Sustainable Consumer Research service monetizes a proprietary panel of 200,000+ sustainability-interested consumers for market research and consulting engagements.
The company extends this consumer base into B2B offerings: GREEN NOTE PRO is an enterprise subscription tier providing translated international news, corporate case studies, research/survey capabilities and team dashboards, deployed to corporate clients including Mitsubishi, Panasonic, Kirin, TOPPAN, DNP and regional banks. GREEN COLLEGE bundles these capabilities with the GREEN VOICE research platform and PR services into a sustainability consulting package. Underlying technology includes AI-assisted personalization (the 'For You' news feed), AI-assisted survey aggregation for research projects, and a multi-tenant consumer panel infrastructure.
Greenroom's revenue model is a mix of B2B subscriptions (quote-based, annual), fee-for-service research projects, and freemium consumer app engagement. Distribution is Japan-only via direct enterprise field sales, app stores, and a government/municipal sales motion. In March 2025, the company became a wholly-owned subsidiary of Mirai-Works Co., Ltd. (TSE Growth: 6563), with founder Yamazaki Shuhei replaced as Representative Director by Nakama Ayumi, who concurrently serves as CSBO at Mirai-Works.
Greenroom firmographics
Firmographics- Name
- Greenroom
- Legal name
- Greenroom株式会社
- Website
- https://greenroom.eco
- Company type
- Private
- Founded year
- 2020
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Greenroom is a Tokyo-based sustainability media and research company operating the GREEN NOTE consumer app, the GREEN NOTE PRO enterprise subscription, and a 200,000+ member consumer research panel serving Japanese corporations, regional banks, and municipal governments.
- Ownership category
- akta.pro rank
Where Greenroom is headquartered
LocationHeadquarters
- HQ city
- Shinjuku
- HQ country
- Japan
- HQ region
- Asia
Offices1 record
Markets served
Greenroom business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure
Revenue model
- GREEN NOTE PRO Subscriptions: B2B subscription revenue from enterprise and government clients subscribing to the corporate version of GREEN NOTE for sustainability news, research tools, and team analytics.
- Consumer Research Services: Fee-for-service research engagements including survey design, fielding, analysis, and consulting reports on sustainable consumption trends. Customized projects based on client needs.
- GREEN NOTE App (Freemium): Free app with optional premium features. Revenue derived from user engagement, point system, and future shop functionality.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | GREEN NOTE PRO per-seat subscription for enterprise teams |
| Other | Multi-year contract | Consumer research project pricing |
Go-to-market motion3 records
Distribution channels4 records
Marketing channels7 records
Greenroom product offering
Product offeringCore offering
Greenroom operates the GREEN NOTE sustainability/SDG-focused media platform — available to consumers as a free iOS/Android news app and to enterprises/governments as the paid GREEN NOTE PRO tier — and provides B2B consumer research, sustainability consulting (GREEN COLLEGE), and market analysis services drawing on a proprietary panel of 200,000+ eco-conscious Japanese consumers. The platform connects sustainability-interested end users with corporations through curated news, co-creation projects, and a point redemption system, while feeding enterprise market intelligence workflows.
Product overview
Greenroom operates a multi-product portfolio anchored around sustainability/ethical consumption media and research. The core consumer product is the GREEN NOTE app and online media platform, which delivers curated SDG/sustainability news to end users and enables co-creation projects between consumers and companies via a point system. Built on top of GREEN NOTE, GREEN NOTE PRO extends the platform with enterprise-tier content (translated international news, corporate case studies, regulatory updates) and integrated consumer research capabilities — serving corporations and government agencies needing sustainability intelligence. Supporting the app ecosystem, Greenroom offers two distinct B2B service lines: (1) a Sustainable Consumer Research service providing survey panels, AI-assisted analysis, and custom reports, and (2) GREEN COLLEGE — a bundled consulting package combining the GREEN VOICE research platform, competitor/market analysis, GREEN NOTE PRO access, and PR services to help enterprises develop 'sellable sustainability' strategies. The full portfolio is unified by Greenroom's mission to connect consumers and companies through sustainability media and accelerate the transition to a sustainable society.
Differentiator
Problem solved
Functional benefit
Brands
- GREEN NOTE PRO: Corporate/enterprise version of the GREEN NOTE sustainability news app, offering expanded content, research tools, and B2B features for organizational subscribers.
- GREEN COLLEGE
- GREEN VOICE
Products and services
- GREEN NOTE Consumer-facing sustainability/SDG-specialized news application available free on iOS and Android in Japan, delivering daily curated domestic and international sustainability news, a personalized 'For You' feed, co-creation projects where users submit ideas to companies, and a point redemption system exchangeable for donations and partner coupons. Built as Japan's largest sustainability media with 300,000+ monthly visitors and more than 200,000 registered consumers, it doubles as the consumer engagement and panel-acquisition channel for Greenroom's B2B services.
- GREEN NOTE PRO Enterprise-facing subscription tier of the GREEN NOTE platform that extends the consumer app with curated content from 100+ media sources, translated international sustainability news, corporate case studies, technology and regulatory alerts, self-service and full-service consumer research panels (200,000+ ethical consumers), team dashboards, newsletters, and a market intelligence report library. Sold via direct enterprise sales with annual per-seat subscriptions to corporations, regional banks, and municipal governments in Japan.
- Sustainable Consumer Research Service (サステナブル消費者リサーチ) B2B research service that gives enterprise clients access to Greenroom's proprietary panel of 200,000+ sustainability-interested consumers — optimized for innovators, early adopters, and early majority — and provides survey design, fielding, AI-assisted response aggregation and analysis, and report production. Priced per project, with self-service credit-based access for 100-sample surveys and custom-quoted larger engagements; supports product market verification and consumer trend studies.
- GREEN COLLEGE Bundled enterprise sustainability consulting service that combines GREEN VOICE consumer research, competitor and market analysis, GREEN NOTE PRO enterprise subscription access, and PR support into one package, helping companies develop and execute 'sellable sustainability' strategies that translate consumer sustainability intent into commercially viable products and communications.
- GREEN VOICE Marketing research platform powering Greenroom's enterprise research offerings, providing quantitative and qualitative survey access to the proprietary 200,000+ sustainability-interested consumer panel for B2B clients seeking fast-turnaround sustainability consumer insight.
Quantifiable outcome
- 200,000+ monthly visitors to GREEN NOTE sustainability media platform
- +2 more outcomes
Companies that use Greenroom
Customer profileNamed customers7 records
Segments4 records
Ideal customer profiles3 records
Greenroom technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration1 record
AI capability3 records
Feature4 records
Greenroom partnerships and signals
Strategic signalPartnerships
Nine partnerships are on record, tiered flagship, minor and core.
- Mirai WorksflagshipMirai Works acquired 100% of Greenroom shares in March 2025, making it a wholly-owned subsidiary. Mirai Works provides professional talent services (88,000 registered professionals) and will integrate Greenroom's sustainability services with its existing consulting and regional revitalization businesses. Greenroom CEO joined as CSBO.
- WORK STYLINGminorCo-hosted seminar on sustainable consumption trends and consumer psychology with WORK STYLING's corporate member network.
- Ota Ward, TokyocoreMunicipal partnership for GREEN NOTE PRO deployment and co-hosted sustainability seminar. Supports Ota Ward's SDG initiatives and sustainability promotion.
- ONE JAPANcoreMedia partnership for ONE JAPAN CONFERENCE 2022 and CHANGE program. GREEN NOTE serves as media partner, publishing articles about CHANGE finalist pitches and covering events.
- ONE XcoreJoint seminar series on circular economy and sustainable consumption topics. Co-branded content creation with ONE X representatives.
- KuradashicoreLaunched point exchange feature allowing GREEN NOTE users to redeem accumulated points for Kuradashi coupons. Partnership enables sustainable consumption cycle where users earn points through idea submissions and redeem for food waste reduction products.
- Extreme Tech Challenge (XTC) JapancoreMedia partnership for world's largest SDG-focused startup pitch contest. GREEN NOTE provides media coverage of XTC Japan selections and global events, helping promote sustainability entrepreneurship.
- PanasoniccoreMultiple internal seminars on plastic products direction, circular economy, and ethical consumption market trends. Panasonic hosts Greenroom-led sustainability seminars for internal teams.
- Tokyo TowerflagshipCo-marketing partnership creating SDG-focused content featuring Tokyo Tower. Includes special discussions with celebrities on sustainability topics, original articles, and collaborative events.
Scale indicators4 records
Recent moves6 records
Expansion highlights6 records
Greenroom competitors and assessment
Company assessmentDirect peers
- Macromill: Tokyo-headquartered online market research firm operating large consumer panels and B2B research services in Japan. Directly comparable to Greenroom's GREEN VOICE sustainable consumer research offering and B2B enterprise subscription model.
- Cross Marketing: Japanese online market research and panel operator with significant consumer panel assets. Directly comparable to Greenroom's panel-driven B2B research services and Japanese enterprise client base.
- GreenBiz Group: US-based sustainability media and research platform producing original content, events, and analyst research for corporate sustainability leaders. Directly comparable to Greenroom's combination of sustainability-focused media, research reports, and event programming.
- Sustainable Brands: Global sustainability media and conference network connecting brands with sustainability-focused consumers and thought leadership. Comparable as a peer in sustainability media and community-building, though US/global-focused rather than Japan-domestic.
- GMO Research: Japanese-headquartered online market research company with Asia-wide panel reach. Comparable as a direct competitor providing consumer panels and research services to enterprise clients in Japan and APAC.
- Rakuten Insight: Rakuten Group's online research panel arm operating a large consumer panel in Asia. Comparable to Greenroom's panel-as-a-service model for B2B market research in the Japanese market.
Broad incumbents
- Workiva: Public cloud platform for ESG reporting, sustainability disclosures, and regulatory compliance. Broad incumbent in adjacent sustainability software, serving similar enterprise sustainability teams with overlapping buyer personas.
- Intage: Japan's largest market research firm with consumer panel infrastructure (SRI+, SCI) and a wide research portfolio. Comparable as a broad incumbent with overlapping capabilities in consumer insight and syndicated research, but not specialized in sustainability.
Emerging players
- Watershed: Enterprise sustainability data platform for carbon accounting and ESG reporting. Adjacent to Greenroom's enterprise sustainability intelligence offering but focused on corporate emissions measurement rather than consumer insight.
- ESG Today: Digital media platform delivering ESG and sustainability news to corporate and investor audiences. Comparable in delivering curated sustainability news, but operates as media-only without Greenroom's research panel layer.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
Greenroom social profiles
Digital presenceGreenroom financial estimates
Financial estimateRevenue estimate
Valuation estimate
Greenroom leadership team
Management profileNumber of profiles
Profiles1 record
Greenroom funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Greenroom M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Greenroom
What does Greenroom do?
Greenroom operates the GREEN NOTE sustainability/SDG-focused media platform — available to consumers as a free iOS/Android news app and to enterprises/governments as the paid GREEN NOTE PRO tier — and provides B2B consumer research, sustainability consulting (GREEN COLLEGE), and market analysis services drawing on a proprietary panel of 200,000+ eco-conscious Japanese consumers. The platform connects sustainability-interested end users with corporations through curated news, co-creation projects, and a point redemption system, while feeding enterprise market intelligence workflows.
Is Greenroom a public or private company?
Greenroom is a private company. It is classified as corporate owned and is currently operating.
When was Greenroom founded?
Greenroom was founded in 2020. It employs 11 to 50 people.
Where is Greenroom based?
Greenroom is headquartered in Shinjuku, Japan, in the Asia region.
How does Greenroom make money?
Three revenue lines are on record. GREEN NOTE PRO Subscriptions are the primary driver. The others are consumer Research Services and GREEN NOTE App (Freemium).
Who are Greenroom's main competitors?
Direct peers on record are Macromill, Cross Marketing, GreenBiz Group, Sustainable Brands, GMO Research and Rakuten Insight. Broad incumbents are Workiva and Intage. Emerging players are Watershed and ESG Today.
Does Greenroom have an API?
No public API is recorded for Greenroom.