Piazza
PIAZZA株式会社 (Piazza) is a Tokyo-based community platform company founded in 2015 that operates a local community app connecting residents, municipalities, and businesses across Japan, while providing area management consulting and public facility operations services.
- Company typePrivate
- Founded2015
- HeadquartersNihombashi-hamacho, Japan
- Headcount11–50
- GTM typeB2B and B2C
- OfferingSoftware
What Piazza does
PIAZZA株式会社 is a Tokyo-based community platform company founded in May 2015 by Kohei Yano. It operates the Piazza (ピアッザ) local community app, an area-segmented mobile platform that connects residents, municipal governments, and local businesses for neighborhood information exchange, mutual support, goods sharing, and community formation. The app is actively recommended by 20+ Japanese municipal governments and is deployed across Tokyo wards (Nakano, Sumida, Chiyoda, Shibuya, Shinjuku, Setagaya, Ota, Meguro, Shinagawa, Itabashi, Taito), the Kansai region (Osaka wards, Kintetsu, South Kawachi), Hokkaido (six Sapporo-region cities), Saitama (Tokorozawa), and other prefectures.
PIAZZA combines the digital app with physical area management and consulting services for real estate developers (Mitsui Fudosan, Tokyu Land, Sapporo Real Estate), railway operators (seven Osaka railways plus JR East and Seibu Railway), department stores (Kintetsu), and municipal governments. The company operates physical community spaces including Cafe Piazza in Shimbashi and the community lounge at Tonowa Garden Mejirodai, and from April 2026 will serve as designated manager for three public cultural facilities in Nakano Ward including 'Nakano ZERO'.
Revenue is generated through a hybrid model: freemium/free access for municipal governments, custom subscription contracts with real estate developers and railway operators, area management consulting fees, local business advertising and promotional services, and managed services from public facility operations. The company employs 11–50 people, has raised ¥1.03 billion (~$7M USD) cumulatively through four funding rounds (most recently a ¥260M Series B in February 2026), and is recognized in Japanese media including a ZUU online 'Hidden Unicorn' feature.
Piazza firmographics
Firmographics- Name
- Piazza
- Legal name
- PIAZZA株式会社
- Website
- https://about.piazza-life.com
- Company type
- Private
- Founded year
- 2015
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- PIAZZA株式会社 (Piazza) is a Tokyo-based community platform company founded in 2015 that operates a local community app connecting residents, municipalities, and businesses across Japan, while providing area management consulting and public facility operations services.
- Ownership category
- akta.pro rank
Piazza industry classification
Industry- Product category
- Community Engagement Software / Smart City Platform
- NAICS
- Administration of Urban Planning and Community and Rural Development (925120), Administration of Housing Programs, Urban Planning, and Community Development (9251), Museums, Historical Sites, and Similar Institutions (712)
- SIC
- Services-Amusement & Recreation Services (7900), Services-Miscellaneous Amusement & Recreation (7990), Retail-Eating & Drinking Places (5810)
- akta.pro primary industry
- Smart Cities & Urban Innovation Programs (Digital Planning, Civic Tech for Cities) (BPAIANAJ)
- akta.pro secondary industries
- Local & Neighborhood Community Platforms (MPACAJAI), Community Engagement & Participatory Planning (BPAHAKAO), POI, Local Listings & Business Directory Platforms (BPAMANAD)
Keywords
Where Piazza is headquartered
LocationHeadquarters
- HQ city
- Nihombashi-hamacho
- HQ country
- Japan
- HQ region
- Asia
Offices2 records
Markets served
Piazza business model
Business model- GTM type
- B2B and B2C
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure
Revenue model
- Platform / App Access (Government & Municipality): Municipal governments and local governments pay for or partner with PIAZZA to provide the community app to residents as a public service tool. The government receives free or subsidized access while PIAZZA gains a user base and government relationship for broader urban management contracts.
- Area Management Consulting & Facility Operations: PIAZZA provides area management services to real estate developers, railway operators, and municipal governments, including consulting, facility planning, operations, and event management. Revenue is generated through consulting fees and facility management contracts.
- Local Business Support / Advertising: Local businesses, facilities, and stores pay for promotional and advertising services on the platform to increase visibility among local residents, drive foot traffic, and build fan communities.
- Designated Manager of Public Cultural Facilities: PIA ZZ A was selected as the designated manager (指定管理者) of three public cultural facilities in Nakano Ward including 'なかのZERO', starting April 2026, generating revenue from municipal facility management contracts.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Annual | Municipal Government / Public Sector — Free or Subsidized Access |
| Subscription | Annual | Enterprise / Real Estate Developers — Custom Contracts |
Go-to-market motion2 records
Distribution channels5 records
Marketing channels8 records
Piazza product offering
Product offeringCore offering
PIAZZA operates a regional community mobile app ("ピアッザ/Piazza") that connects residents, local governments, and businesses within geographically segmented digital communities for neighborhood information sharing, mutual support, goods exchange, and local event participation. Beyond the app, the company provides area management consulting, urban development operations, local business promotion, and government DX solutions to municipal authorities across Japan. The platform is recommended by 20+ Japanese municipalities and integrated with real estate developers, railway operators, and department store groups to drive community activation around redevelopment projects.
Product overview
PIAZZA operates a unified platform combining a local community app (ピアッザ) with area management and business support services. The core product is the ピアッザ community app, which connects residents, local governments, and businesses for neighborhood information sharing and mutual assistance. Around this core, PIAZZA offers complementary services: Area Management (consulting and operations for urban development), Local Business Support (marketing and promotion for regional businesses), Government Alliance (free DX solutions for municipalities), and Business Partnerships (collaboration with railways, real estate, and other enterprises). Additional offerings include proprietary metrics like Community Value (CV), AI-powered paper flyer digitization using ChatGPT and OCR, and physical community spaces including cafes and childcare facilities.
Differentiator
Problem solved
Functional benefit
Brands
- ピアッザくん (Piazza-kun): Official character for regional co-creation promotion.
- 目白台の間 ピアッザ
- なかのZERO ピアッザ
Products and services
- ピアッザ (Piazza) Local Community App Mobile community application connecting residents, local governments, and businesses within geographically segmented digital neighborhoods for information exchange, mutual aid, item sharing, group formation, and event participation. Free for residents and distributed via iOS App Store and Google Play.
- Area Management Services Urban development and community value enhancement consulting and operations services for real estate developers, railway operators, and municipal governments. Leverages PIAZZA's digital community tools to support 10+ redevelopment projects in the Tokyo metropolitan area.
- Local Business Support Marketing and promotional services enabling local shops, facilities, services, and SMBs to increase visibility among nearby residents, drive foot traffic, and build fan communities through the PIAZZA platform.
- Government Alliance No-cost digital solutions provided to Japanese local governments to address community fragmentation, demographic challenges (declining birthrate, aging population), SDGs, and DX promotion through the Piazza app platform.
- Business Partnership Services Strategic collaboration services for railways, real estate developers, sports teams, trading companies, and other enterprises to develop urban co-creation initiatives, industry creation projects, and pilot experiments with PIAZZA's community platform.
- Mejirodai no Ma Piazza (目白台の間 ピアッザ) Community Lounge Physical community lounge open to the local neighborhood, operated by PIAZZA within Tokyu Land Corporation's Tonowa Garden Mejirodai residential development in Bunkyo Ward, Tokyo.
- Cafe Piazza (カフェ ピアッザ) Community cafe in Shimbashi, Minato-ku, Tokyo, serving as a physical hub for community engagement that connects workers, residents, and tourists in a redevelopment area utilizing idle land.
- Growth Link (グロースリンク) Childcare Facility Childcare support facility in the Tokyo Bay area with 30,000+ paid members, offering play areas, educational classes, multi-purpose rooms, and outdoor activities.
Quantifiable outcome
- 3 public cultural facilities managed in Nakano Ward from April 2026
- +3 more outcomes
Companies that use Piazza
Customer profileNamed customers14 records
Segments4 records
Ideal customer profiles4 records
Piazza technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability4 records
Feature5 records
Piazza partnerships and signals
Strategic signalPartnerships
16 partnerships are on record, tiered core, major and secondary.
- 中野区 (Nakano Ward)coreNakano Ward selected PIAZZA as the designated manager (指定管理者) for three public cultural facilities including 'なかのZERO', marking a major milestone in PIAZZA's transition from app provider to physical cultural facility manager. Operations commence April 2026.
- 北海道さっぽろ圏6市町 (Hokkaido Sapporo Region 6 Municipalities)majorSix cities and towns in the Hokkaido Sapporo region (Hokkaido, Sapporo, Ebetsu, Kitahiroshima, Tobetsu, and Shikaoi) simultaneously signed partnership agreements with PIAZZA to introduce the community app and work toward 'a town where people want to continue living'.
- 近鉄百貨店・近鉄不動産 (Kintetsu Department Store / Kintetsu Real Estate)majorKintetsu Department Store and Kintetsu Real Estate partnered with PIAZZA to form a new regional model in the Abeno/Tennoji area of Osaka. The partnership uses PIAZZA's community app to create and activate local communities, aiming for a new regional economic model suited to the with-corona/after-corona era, alongside facilities, enterprises, and municipalities.
- NECレッドロケッツ (NEC Red Rockers)secondaryPro women's volleyball team NEC Red Rockers (V.LEAGUE DIVISION1 WOMEN) partnered with PIAZZA and Kawasaki City Nakahara Ward to further activate the local community and develop sports. The team already had a 'Kawasaki Sports Partner' relationship with Nakahara Ward, and the addition of PIAZZA created a three-way collaboration combining sports, community activation, and municipal government.
- 大阪の鉄道事業者7社 (Osaka Railway Operators — OsakaMetro, 近鉄, 京阪, 南海, JR西区, 阪急, 阪神)coreSeven railway operators in Osaka — OsakaMetro, Kintetsu, Keihan, Nankai, JR West, Hankyu, and Hanshin — partnered with PIAZZA and Osaka City to promote micro-tourism and regional activation using the community app. This is one of PIAZZA's flagship multi-stakeholder partnerships involving seven railway operators simultaneously.
- 東鉄工業 (Tokyu Land Corporation)majorTokyu Land Corporation partnered with PIAZZA to open 'Mejirodai no Ma Piazza' as a community lounge within the Tonowa Garden Mejirodai residential development in Bunkyo Ward, Tokyo. This is a real estate co-development partnership for community space operations.
- 三井不動産 (Mitsui Fudosan)coreMitsui Fudosan partnered with PIAZZA to design and build a local community ecosystem centered on Nihonbashi, creating a community for people working in Nihonbashi. The project includes shared workspaces, studios, open kitchens, and regular events and classes, with nearby shops and stores using the digital community for information dissemination and event promotion.
- サッポロ不動産 (Sapporo Real Estate)majorSapporo Real Estate, which owns numerous properties in the Ebisu area of Shibuya and is engaged in community-based urban development, partnered with PIAZZA to design and build a local community ecosystem centered on Ebisu Garden Place. The partnership uses the digital community platform and events to foster exchanges between local residents.
- 三井不動産レジデンシャル (Mitsui Fudosan Residential)majorMitsui Fudosan Residential partnered with PIAZZA for community activation around their Musashi-Kosugi residential developments. PIAZZA began operating 'Event Space KOSUGI 1' from July 2024 to support local community activation in the area.
- 西武鉄道 (Seibu Railway)majorSeibu Railway partnered with PIAZZA to launch 'Chira Degi' — a paper flyer DX service using generative AI along the Seibu line. This service reads dates and content from printed flyers and automatically publishes them as a web calendar, creating new regional touchpoints and promoting exchange along the railway line.
- 交通新聞社 (Kotsu Shimbunsha)secondaryKotsu Shimbunsha, which operates 'Santats by Walker's Digest' (さんたつby散歩の達人), formed an alliance with PIAZZA to enable article linking and content viewing within the PIAZZA community app, expanding content reach and marketing presence.
- Growth Link (グロースリンク)secondaryGrowth Link is a childcare support facility that PIAZZA operates in the Tokyo Bay area. With over 30,000 paid members, it represents PIAZZA's facility management and community operations capability in the childcare sector.
- 中原区 (Nakahara Ward, Kawasaki City)majorKawasaki City Nakahara Ward partnered with PIAZZA through a partnership agreement to support residents who want to be active in their community, matching volunteers and participants and enabling easy recruitment for community activities through the app.
- 小田原市 (Odawara City)secondaryOdawara City partnered with PIAZZA on a Ministry of Economy, Trade and Industry betatech demonstration project using digital technology for childcare support services, aiming to reduce the burden of childcare.
- 松山市 (Matsuyama City)secondaryMatsuyama City partnered with PIAZZA and the local Silver Human Resources Center to support digitalization of neighborhood associations and provide community DX assistance to local community organizations.
- 大阪府南河内地域5市町 (Osaka Prefecture South Kawachi Region 5 Municipalities)secondaryThrough the Osaka Prefecture Public-Civil Strategic Partnership Desk, five cities and towns in the South Kawachi region (Osakasayama, Kawachi-Nagano, Taishi, Habikino, Fujiidera) partnered with PIAZZA to use the community app for community formation, local charm enhancement, and new value creation.
Scale indicators9 records
Recent moves6 records
Expansion highlights6 records
Piazza competitors and assessment
Company assessmentDirect peers
- Nextdoor: US-based neighborhood community platform connecting residents, local businesses, and community organizations at the hyperlocal level. Most direct international comparable for PIAZZA's core community app, though PIAZZA's tighter integration with municipal governments and physical facility management goes further.
- Locoguide (ロコガイド): Japanese local business and community platform connecting residents with neighborhood shops and services. Closest Japanese peer in terms of local business promotion and community engagement functionality, though Locoguide focuses more on SMB promotion than municipal-government relationships.
Broad incumbents
- LIFULL: Major Japanese real estate and community platform (LIFULL HOME'S) that has expanded into senior care and community services. A broader incumbent with overlapping community + real estate interests, but operating at portfolio scale rather than specializing in municipal community activation.
- LINE Yahoo Corporation: Japan's dominant communications and content platform formed from LINE and Yahoo Japan merger. Has resources to enter municipal/community territory at scale, dwarfing PIAZZA's reach; relevant as the most likely broad-platform competitor or potential acquirer.
Regional players
- Tokyu Community (東急コミュニティー): Subsidiary of Tokyu Corporation managing building facilities and area-management services for Tokyu-line developments. Comparable in the area-management and community-activation service layer, though focused on Tokyu's own properties rather than providing a multi-developer platform.
Emerging players
- TownWiFi: Japanese platform providing free WiFi at local businesses and surfacing local information to users. Adjacent in targeting SMBs and local residents for engagement, but focused on WiFi access rather than community/area management.
- Front Porch Forum: US-based free community announcement service used by towns and neighborhoods in Vermont and surrounding states. Conceptually similar to PIAZZA's neighborhood-anchored communication model, demonstrating the niche's viability but in a very different geographic and regulatory context.
- Holiday (ホリデー): Japanese community SNS centered on local events, classes, and neighborhood discovery, with similar community-event activation and discovery model. Niche competitor focused on event discovery rather than full-stack municipal community infrastructure.
Others
- Mitsui Fudosan (三井不動産): Japan's largest real estate developer and one of PIAZZA's most strategic enterprise customers (Nihonbashi, Musashi-Kosugi). A customer and partner rather than a competitor, but relevant because Mitsui's strategy around community-anchored redevelopment shapes PIAZZA's enterprise pipeline.
- Seibu Holdings (西武ホールディングス): Japanese conglomerate operating railways, real estate, and hotels; PIAZZA investor through Blue Incubation subsidiary and a strategic community-development partner. Comparable in community-anchored development philosophy, though at much larger and more diversified scale.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Piazza social profiles
Digital presencePiazza financial estimates
Financial estimateRevenue estimate
Valuation estimate
Piazza leadership team
Management profileNumber of profiles
Profiles1 record
Piazza funding detail
Funding detailFunding overview
Funding rounds4 records
Investors11 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Piazza 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 Piazza
What does Piazza do?
PIAZZA operates a regional community mobile app ("ピアッザ/Piazza") that connects residents, local governments, and businesses within geographically segmented digital communities for neighborhood information sharing, mutual support, goods exchange, and local event participation. Beyond the app, the company provides area management consulting, urban development operations, local business promotion, and government DX solutions to municipal authorities across Japan. The platform is recommended by 20+ Japanese municipalities and integrated with real estate developers, railway operators, and department store groups to drive community activation around redevelopment projects.
Is Piazza a public or private company?
Piazza is a private company. It is classified as venture growth investor backed and is currently operating.
When was Piazza founded?
Piazza was founded in 2015. It employs 11 to 50 people.
Where is Piazza based?
Piazza is headquartered in Nihombashi-hamacho, Japan, in the Asia region.
How does Piazza make money?
Four revenue lines are on record. Platform / App Access (Government & Municipality) is the primary driver. The others are area Management Consulting & Facility Operations, local Business Support / Advertising and designated Manager of Public Cultural Facilities.
Who are Piazza's main competitors?
Direct peers on record are Nextdoor and Locoguide (ロコガイド). Broad incumbents are LIFULL and LINE Yahoo Corporation. Tokyu Community (東急コミュニティー) is listed as a regional player. Emerging players are TownWiFi, Front Porch Forum and Holiday (ホリデー). Others are Mitsui Fudosan (三井不動産) and Seibu Holdings (西武ホールディングス).
Does Piazza have an API?
No public API is recorded for Piazza.
What industry is Piazza in?
Piazza's product category is Community Engagement Software / Smart City Platform. Its primary akta.pro industry code is BPAIANAJ, Smart Cities & Urban Innovation Programs (Digital Planning, Civic Tech for Cities), with a secondary code of MPACAJAI, Local & Neighborhood Community Platforms. Its NAICS code is 925120 and its SIC code is 7900.