Sairin System

What Sairin System does

Sairin System Co., Ltd. (株式会社彩凛システム) is a privately held Japanese web services company founded in March 2000 and headquartered in Osaka, operating under the management vision of 'creating services that make 1 million people happy.' The company has transitioned from commissioned custom web development to two proprietary product lines: Rentacar Samurai (レンタカー侍), a cloud-based reservation and fleet management SaaS launched in 2017 for Japanese SMB rental car operators, car dealers, and used car sellers, with same-day implementation and multilingual booking functionality; and Codetike (コデチケ), a fashion coordinator matching marketplace launched in 2014 that was an industry-first in Japan and connects consumers with coordinators who sell hourly styling 'tickets.' A custom web development service for EC, reservation, and business systems remains in the company's background but is not currently accepting new projects.

The underlying platform is built on a conventional LAMP-style web stack — PHP/Laravel on the backend, Vue.js/Nuxt.js on the frontend, MySQL for persistence, and AWS for hosting — developed using agile practices with Jira, Bitbucket/GitHub, Slack, Zoom, and Gather. There is no disclosed use of AI/ML, proprietary models, or data flywheel mechanics in either product. Codetike generates revenue via a marketplace/transaction model where coordinators set hourly ticket prices, while Rentacar Samurai operates as a recurring SaaS subscription offered at a notably lower price point than custom-built alternatives. The company also introduced a sales-linked bonus system in autumn 2024 to align engineering incentives with product revenue.

Sairin System serves three segments: SMB rental car businesses as its primary vertical, fashion-conscious consumers and independent fashion coordinators as a secondary consumer marketplace, and (historically) enterprise clients requiring custom web applications. Distribution is direct and digital — self-serve sign-up for Rentacar Samurai, marketplace onboarding for Codetike, and content marketing plus earned media (Yahoo!, TBS, Fuji TV, Tokyo MX, WWD Japan, BIG tomorrow) as the principal acquisition channels. The company employs a small team of web engineers working under full remote and flex-time arrangements (core 11:00–15:00) with 126 annual holidays, alongside an in-office customer support function, and is currently recruiting two additional web engineers. Representative Director Yoshihide Kamimura (上村善英) leads the firm; no parent company, institutional investors, or equity dilution is disclosed.

Name

Sairin System

Legal name

株式会社彩凛システム

Website

https://sairin-system.co.jp

Company type

Private

Founded year

2000

Operating status

Operating

Short description

Sairin System is a privately held Osaka-based web services company that develops and operates two proprietary SaaS products — Rentacar Samurai, a cloud reservation system for Japanese rental car SMBs, and Codetike, a fashion coordinator matching marketplace — and has paused its legacy custom development line.

Ownership category

akta.pro rank

Headquarters

HQ city

Osaka

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. SaaS Subscription - Rentacar Samurai: Cloud-based rental car reservation management system offered on a subscription basis. The system is available at significantly lower cost compared to custom-made reservation systems while providing high functionality. Revenue is generated through recurring subscription fees from rental car businesses, dealers, and used car sellers.
2. Fashion Coordinator Matching - Codetike: A fashion coordination matching service where coordinators set their own hourly prices as tickets. Coordinators sell their fashion expertise as tickets, and users pay for the coordination service. This serves as a commission/marketplace revenue model.
3. Custom Development Services: Custom web system development services offered to clients. The company has extensive development experience including EC sites, rental reservations, studio reservations, medical examination reservations, and English conversation reservation systems. Note: Currently not accepting new projects.
4. Sales Incentive Bonus: A sales-linked bonus system was newly established in autumn 2024. The bonus is tied to monthly sales with no individual quotas. For web engineers, this adds approximately 100,000-200,000 yen on top of base salary, with new hires receiving around 35万 yen in the first year and gradually increasing to an additional 10-20万 yen per month after approximately 1.5 years.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Sairin System develops and operates proprietary cloud-based web services, primarily Rentacar Samurai — a vertical SaaS rental car reservation and management platform for SMB rental companies, dealers, and used car sellers — and Codetike, a fashion coordinator matching marketplace that connects style-seeking consumers with registered coordinators via hourly-priced tickets. The company previously offered custom web system development services but is not currently accepting new projects.

Product overview

Sairin System operates as a web services company in Osaka, Japan, offering two primary self-developed products: Rentacar Samurai, a car rental business management and reservation cloud system launched in 2017, and Codetike, a fashion coordinator matching service launched in 2014. The company also previously provided custom web development services but is not currently accepting new development projects. Both products are operated as cloud-based services targeting Japanese businesses and consumers.

Differentiator

Problem solved

Functional benefit

Products and services

• Rentacar Samurai (レンタカー侍) A cloud-based rental car reservation and management SaaS platform for Japanese rental car businesses, automotive dealers, and used car sellers. It provides integrated reservation management, rental-specific detailed settings, automated report generation, and multilingual web booking functionality for inbound tourism customers, with same-day implementation capability and affordable subscription pricing compared to custom development.
• Codetike (コデチケ) A fashion coordinator matching marketplace for Japanese consumers who lack confidence in clothing selection. Users browse coordinators filtered by age, region, and specialty genre, communicate via the platform's messaging system, and meet coordinators in person for shopping accompaniment priced by the hour.

Named customers4 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators2 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• SmartHR: Japan's largest HR cloud SaaS for SMBs, comparable as a Japanese SMB SaaS peer in terms of self-serve onboarding and recurring subscription model.
• freee: Leading Japanese cloud SaaS company serving SMBs with HR, accounting, and invoicing — a broader SaaS incumbent in the same Japanese SMB cloud market Sairin System targets.
• STORES: Japanese SMB-focused digital tools platform (reservations, payments, online stores), competing with Rentacar Samurai from a broader portfolio and broader scale.

Emerging players

• Lancers: Japanese freelance and skill marketplace, partially comparable to Codetike's marketplace model for monetizing personal services and time.

Direct peers

• TimeTicket: Japanese time-based skill-sharing marketplace where providers sell expertise by the hour, directly comparable to Codetike's coordinator-by-the-hour marketplace model.
• Coconala: Japanese skill marketplace for buying and selling services, comparable to Codetike's marketplace design for monetizing personal expertise and time.
• RESERVA: Japan-based online reservation system for SMBs across multiple verticals, structurally comparable to Rentacar Samurai's reservation management value proposition.
• Street Academy: Japan's leading matching marketplace connecting instructors with learners, a structural analogue to Codetike's two-sided marketplace for fashion expertise.
• Eairu (Reservation): Japanese SMB reservation-management SaaS from Reservey, providing online booking pages for small businesses — a direct horizontal peer to Rentacar Samurai in the reservation SaaS niche.
• tripla: Japan-based booking platform for hotels and tourism that supports multilingual reservations, closely mirroring Rentacar Samurai's multilingual booking capabilities and SMB focus in the hospitality/mobility space.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Sairin System