Three star

What Three star does

Three Star (株式会社スリースター) is a Tokyo-based real estate technology company founded in August 2012 that specializes exclusively in rental office brokerage. The firm operates a portfolio of owned web platforms centered on officetar, a search engine aggregating 50,000+ office property listings searchable by address, area, route, and station. Adjacent platforms include vivit for furnished office matching (1,400+ registered members, 400+ properties), FLEXPACE for nationwide co-working and virtual office search, RAKNA for setup offices with pre-designed interiors, Simplee for furniture and equipment leasing, and STALOG as an owned media channel. Core technology is described as not publicly disclosed, with no patents, no AI/ML capabilities, and no third-party API integrations on record.

Three Star's customers fall into two segments: corporate tenants seeking office relocation (primary) and building owners seeking tenant acquisition (secondary). The named building owner client base spans most of Japan's major real estate developers and insurance-related landlords, including Mitsui Fudosan, Mori Building, Sumitomo Realty, NTT Urban Development, ORIX Real Estate, Nomura Real Estate, Nippon Life Insurance, Dai-ichi Life Insurance, and Meiji Yasuda Life Insurance. On the tenant side, the firm has logged over 1,000 corporate contract signings since founding. The go-to-market combines inbound lead generation through owned web platforms with a field sales organization of approximately 42 total employees that conducts on-site client consultations and manages the full advisory cycle from needs discovery through lease negotiation and move-in coordination.

Revenue is generated primarily through brokerage commissions on completed lease transactions, supplemented by recurring platform and listing fee revenue from the web ecosystem. The firm holds a Tokyo Governor real estate brokerage license (No. (3)94616) and is a member of the Tokyo Real Estate Trade Association and East Japan Real Estate Distribution Organization. Three Star is privately held, founder-led by Representative Director Masayoshi Ogawa, and bootstrapped with no disclosed external funding. The company operates from three Tokyo locations: its Nishi-Shimbashi headquarters, a Shibuya sales office (opened January 2020), and a Nihonbashi office (opened May 2022).

Name

Three star

Legal name

株式会社スリースター

Website

https://tstar.co.jp

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

11–50 employees

Short description

Three Star (株式会社スリースター) is a Tokyo-based real estate technology company founded in 2012 that provides rental office brokerage and a portfolio of specialized web platforms serving corporate tenants and building owners across Japan.

Ownership category

akta.pro rank

Product category

Office Real Estate Brokerage

NAICS

Offices of Real Estate Agents and Brokers (53121)

SIC

Real Estate Agents & Managers (For Others) (6531)

akta.pro primary industry

Office Tenant Representation (BPAJALAA)

Keywords

• Office rental brokerage
• Office relocation services
• Furnished office matching
• Office property search
• Commercial real estate tech

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Office Real Estate Brokerage Commission: スリースター earns commissions on completed lease transactions between building owners (as principals listing space) and tenants (companies seeking office relocation). The brokerage covers the full advisory cycle from needs discovery through contract execution and post-move-in support. The company also handles tenant-representation for companies looking to relocate.
2. WEB Service Platforms: The company operates multiple web platforms (officetar, vivit, RAKNA, FLEXPACE, スタログ, Simplee) that serve as property search portals, lead-generation tools, and owned media channels. These platforms drive tenant leads to the brokerage business and may also generate advertising or listing fee revenue.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Three Star is a Tokyo-based real estate technology (PropTech) firm that provides office rental brokerage and a portfolio of web service platforms supporting office relocation. The company matches corporate tenants with office space across furnished, renovated, set-up, and conventional office categories, and also supports building owners with tenant acquisition. Revenue is generated primarily through brokerage commissions on completed lease transactions, with web platforms (officetar, vivit, FLEXPACE, RAKNA, STALOG, Simplee) functioning as property search, matching, lead-generation, and content channels.

Product overview

Three Star operates a multi-platform portfolio of office real estate services, centered around a core office rental intermediary business. The product ecosystem includes officetar as the primary office search platform (50,000+ properties), vivit for furnished office matching (1,400+ members, 400+ properties), FLEXPACE for rental/virtual office search, RAKNA for setup offices with pre-designed interiors, and STALOG as an owned media content platform. Additional services include Simplee for furniture leasing and Reborn for renovated office search (launched 2017). These web services work together to provide end-to-end office relocation support from property search through move-in.

Differentiator

Problem solved

Functional benefit

Brands

• officetar（オフィスター）: 50,000棟超の物件データから賃貸オフィス・賃貸事務所を検索できるサービス
• vivit（ビビット）
• FLEXPACE（フレックスペース）
• RAKNA（ラクナ）
• スタログ

Products and services

• officetar (オフィースター) A web-based rental office search platform containing more than 50,000 office building listings, allowing corporate tenants to search by address, area, train lines, station, and floor area. Drives inbound tenant leads to the brokerage business.
• vivit (ビビット) A furnished office matching platform that connects tenants looking to leave furnished offices with companies seeking move-in-ready furnished spaces. Has more than 1,400 registered members and 400+ property listings.
• FLEXPACE (フレックスペース) A nationwide search service for rental offices, co-working spaces, and virtual offices, helping users find flexible workspace solutions across Japan.
• RAKNA (ラクナ) A setup office search service featuring properties with professionally designed pre-fitted interiors, enabling tenants to reduce renovation costs and shorten move-in time.
• STALOG (スタログ) An owned media platform publishing office market trends, relocation case studies, and featured office building information for companies considering office moves.
• Simplee (シンプリ―) A furniture and office equipment leasing service for companies undertaking office relocations, providing lease options for office fixtures and furniture.
• Office Rental Brokerage Service A consultative office rental brokerage service where sales staff visit corporate tenants, identify relocation needs, present suitable properties, conduct site tours, negotiate leases with building owners, and coordinate interior work and furniture procurement. Both tenant-representation and building-owner representation are handled.

Quantifiable outcome

• 50,000+ office building properties searchable on the officetar platform
• +3 more outcomes

Named customers22 records

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators6 records

Recent moves10 records

Expansion highlights5 records

Broad incumbents

• CBRE Japan: CBRE is one of the world's largest commercial real estate services firms and provides office tenant representation, brokerage, and advisory services in Japan. It competes for the same enterprise tenant mandates as Three Star but with significantly broader geographic coverage and resources.
• at home: at home is a Japanese real estate portal covering residential and commercial properties, including office listings. It competes with Three Star's web platforms for organic tenant search traffic and offers a similar listing-aggregation model at national scale.
• JLL Japan: JLL provides office leasing, tenant representation, and real estate advisory services in Japan as part of its global commercial real estate platform. It competes with Three Star for corporate office relocation mandates, particularly with multinational tenants.
• LIFULL: LIFULL operates the HOME'S real estate portal, one of Japan's largest property search platforms that includes office listings. It competes with Three Star's officetar for organic office search traffic while offering a much broader residential and commercial real estate ecosystem.
• Recruit SUUMO: SUUMO is Japan's dominant real estate portal operated by Recruit, covering residential and commercial properties including offices. It competes with Three Star's web platforms for tenant search demand and benefits from significantly greater brand recognition and traffic scale.

Direct peers

• Sankyo Estate: Sankyo Estate operates a brokerage business focused on office and commercial properties in Tokyo and other Japanese cities, with a similar tenant-representation and property-listing model. It is directly comparable to Three Star in target customer and service offering.
• Miki Shoji: Miki Shoji is one of Japan's largest dedicated office rental and sales brokerage firms, with a comparable focus on the office segment and an extensive corporate client base. It competes directly with Three Star for tenant representation and landlord mandates in central Tokyo.

Emerging players

• IWG (Regus) Japan: IWG operates the Regus and Spaces flexible workspace brands in Japan, overlapping with Three Star's FLEXPACE and rental office offerings. Both target companies seeking serviced and flexible office space in central business districts.
• ietty: ietty is a Japanese real estate tech firm offering a chat-based brokerage platform that connects tenants with real estate agents. It overlaps with Three Star's digital-lead-generation approach and competes for tech-savvy tenants seeking office and residential space.
• WeWork Japan: WeWork Japan operates flexible office spaces and competes with Three Star's FLEXPACE platform in the rental and virtual office segment. While its business model is asset-heavy, both serve tenants seeking flexible workspace solutions in Tokyo.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@
• Xx.com/three_star333

Compliance3 records

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 Three star