Yamasan Kotsu Co

What Yamasan Kotsu Co does

Yamasan Kotsu Co (山三株式会社) is a privately held Tokyo-based taxi operator headquartered in Koto Ward, founded in 1960 and operating with 251–500 employees. Its core offering is passenger taxi service across the Tokyo metropolitan area, dispatched through the Tokyo Wireless (東京無線) cooperative call center, with a fleet comprising JPN TAXI, Serena, and Alphard vehicles. The company runs three shift patterns — alternating-day, daytime, and nighttime — and equips all vehicles with a tablet navigation system to support driver route guidance and geographic familiarity.

The company differentiates within Japan's competitive taxi market primarily through a driver-centric value proposition: industry-high commission of up to 64%, a 230,000 yen monthly base salary, a 3-month onboarding guarantee of 300,000 yen/month, company-paid Class 2 driver's license training, and a company-owned single-occupancy dormitory with subsidized rent. Its go-to-market is direct-to-consumer, with ride requests routed via Tokyo Wireless and corporate/visitor transportation (including VIP services during the Tokyo Olympics and certified sightseeing services for the Chuo Ward Tourism Association) supplementing street-hail demand. Marketing is largely limited to the corporate website and employee recruitment pages.

Revenue is generated from per-ride taxi fares under Tokyo meter rates (transaction-fee model), complemented by ancillary revenue from two wholly-owned subsidiaries: a certified vehicle inspection/maintenance factory that serves both the captive fleet and external retail and corporate customers, and the Koto Minamisuna Eco Station, a 24-hour LPG/CNG fueling and car wash facility. No external funding, parent company, or M&A activity is disclosed, and there is no evidence of API, SDK, AI/ML, or mobile-app capabilities beyond the tablet navigation layer.

Name

Yamasan Kotsu Co

Legal name

山三株式会社

Website

https://yamasan-koutsu.co.jp

Company type

Private

Founded year

1900

Operating status

Operating

Headcount range

251–500 employees

Short description

Yamasan Kotsu Co is a privately held Tokyo taxi operator (founded 1960) providing passenger rides via the Tokyo Wireless dispatch cooperative, with three shift patterns, fleet-maintenance and LPG/CNG fueling subsidiaries, and a driver-recruitment model built on industry-high commissions and subsidized dormitory housing.

Ownership category

akta.pro rank

Product category

Ground Passenger Transportation (Taxi Services)

NAICS

Taxi and Limousine Service (4853), Taxi and Ridesharing Services (485310)

SIC

Transportation Services (4700)

akta.pro primary industry

Taxi Dispatch & Fleet Management Operators (Radio/Call Center) (TLAFAHAG)

akta.pro secondary industries

Taxi Cooperative / Owner-Driver Association Operators (TLAFAHAM), Dispatch / Call Center Taxi Services (THADAEAB)

Keywords

• Taxi services
• Vehicle maintenance
• Passenger transportation
• Auto repair services
• Fleet operations

Headquarters

HQ city

Koto

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Marketing or Sales, Supply Chain

Revenue model

1. Taxi Fare Revenue: Revenue generated from taxi services charged per ride based on distance and time. Drivers receive base salary plus commission (up to 64% commission rate).
2. Vehicle Maintenance Services: Related company 山三株式会社 provides vehicle maintenance, inspection, repairs, and body work services.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Yamasan Kotsu Co operates passenger taxi services in Tokyo through its Yamasan Taxi Department (山三タクシー部), affiliated with the Tokyo Wireless (東京無線) dispatch cooperative. Its fleet of JPN TAXI, Serena, and Alphard vehicles runs three shift patterns (alternating-day, daytime, nighttime). The company's certified vehicle maintenance factory provides inspections, repairs, and bodywork for both its own fleet and external customers, and its Koto Minamisuna Eco Station supplies 24-hour LPG/CNG fueling and car wash services for clean-energy operations.

Product overview

Yamasan Kotsu Co operates a unified transportation and mobility services portfolio centered on its taxi department (山三タクシー部), which provides passenger taxi services in Tokyo through an affiliation with Tokyo Musen (東京無線) dispatch center. The company supports its taxi operations with two subsidiary services: a certified vehicle maintenance factory (山三株式会社 指定整備工場) handling inspections, repairs, and bodywork for both company vehicles and external customers; and the Koto Minamisuna Eco Station (江東南砂エコステーション株式会社) providing 24-hour LPG/CNG fueling and car wash services. Employee housing accommodations are also offered as a recruitment benefit. The taxi fleet comprises three vehicle models: JPN TAXI, Serena, and Alphard.

Differentiator

Problem solved

Functional benefit

Products and services

• Yamasan Taxi Department (山三タクシー部) Tokyo-based passenger taxi service using JPN TAXI, Serena, and Alphard vehicles with three shift arrangements (alternating-day, daytime, nighttime). Rides are dispatched through the Tokyo Wireless (東京無線) cooperative dispatch centre and include certified sightseeing guide services for Chuo Ward as well as VIP transportation.
• Yamasan Certified Maintenance Factory (山三株式会社 指定整備工場) Designated vehicle inspection and repair facility providing shaken inspections, regular maintenance, repairs, and bodywork/painting services for corporate fleet customers and the general public. Operates weekdays 8:00-18:00, weekends 8:30-17:30, plus overnight service 18:00-8:00.
• Koto Minamisuna Eco Station (江東南砂エコステーション株式会社) 24-hour LPG/clean autogas and CNG fueling station with car wash facilities and natural gas dispensing (6:00-23:00), supporting the taxi fleet's clean-energy operations and external customers.

Quantifiable outcome

• 3-month salary guarantee of 300,000 yen/month during onboarding
• +2 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Four partnerships are on record, tiered core and minor.

• Tokyo Wireless (東京無線)coreChannel Partner/ Reseller/ DistributorTokyo Wireless is the primary dispatch center for taxi requests. Customers call Tokyo Wireless dispatch center for service, which then connects them with available Yamasan taxis in the network.
• 山三株式会社 (Yamasan Corporation)coreStrategic or Co-development PartnerDesignated inspection facility providing vehicle inspection (shaken), regular maintenance, repairs, and body work/painting services. Hours: Weekdays 8:00-18:00, Weekends/Holidays 8:30-17:30, Night service 18:00-8:00.
• 江東南砂エコステーション株式会社 (Koto Minami-Suna Eco Station Co.)coreStrategic or Co-development PartnerLPG and CNG fueling station. Operates 24-hour clean auto gas station, car wash facilities, and natural gas station (6:00-23:00). Supports eco-friendly operations with clean energy.
• Chuo Ward Tourism Association (中央区観光協会)minorGTM or Marketing PartnerCompany drivers provide certified sightseeing guide services for Chuo Ward's tourism program, enhancing visibility and providing legitimate tourism operations.

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Market position

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries2 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 Yamasan Kotsu Co