MITADENSHIKEISAN

What MITADENSHIKEISAN does

MITADENSHIKEISAN (三田電子ケイサン株式会社) is a privately held, owner-operated Japanese staffing and human-resources services company founded in August 1971 and headquartered in Toshima-ku, Tokyo (Hareza Tower WeWork, 19F). The company operates through three sub-brands: L'étincelle Carrière (レタンセルキャリア), a temporary staffing and fee-based employment placement service focused on office-work positions and supported by nationally certified career consultants; Sourire Carrière (スーリールキャリア), a specialized recruitment-support service connecting vocational-school students with employers across an estimated 700 schools in Tokyo and five surrounding prefectures; and Sourire Project (スーリールプロジェクト), a rental-space and training/events business operating near Mejiro Station. The company holds a labor dispatch permit (派13-090088) and a fee-based employment placement permit (13-ユ-305576/305776), and maintains Privacy Mark certification under JIS Q 15001.

The business model is multi-stream and primarily service-based, generating revenue through usage-based temporary staffing fees, transaction-based placement fees for direct hires, professional-service fees for specialized student recruitment support (job fair facilitation, recruitment-book distribution, web services), and hourly rental of meeting/event spaces (¥1,800–¥2,500 per hour). Go-to-market combines direct enterprise sales (with dedicated 1-company-1-account-manager coverage) for corporate clients and on-campus job fairs / joint company information sessions for vocational-school students. Marketing channels include a dual paper-and-web recruitment book, the Sourire Carrière website, two LINE official accounts segmenting job seekers from students, an external job portal (arwrk.net), and thought-leadership lectures by the founding representative on women's career advancement. Technology stack is intentionally light: the website is a standard CMS, the only disclosed integration is Google Calendar for rental-space booking, and there are no APIs, SDKs, or AI/ML components documented.

Registered capital is ¥10 million, headcount is 1-10 employees, the company is founder-controlled with no external investors or funding rounds, and no revenue figure is publicly disclosed. In April 2025 the company executed a corporate name change, and in April 2026 it completed a full website relaunch — the most material recent strategic activities, both oriented around brand and channel modernization rather than scale expansion.

Name

MITADENSHIKEISAN

Legal name

三田電子ケイサン株式会社

Website

https://mitadk.co.jp

Company type

Private

Founded year

1971

Operating status

Operating

Headcount range

1–10 employees

Short description

MITADENSHIKEISAN is a Tokyo-based, owner-operated Japanese staffing company founded in 1971 that provides temporary staffing, fee-based employment placement, specialized vocational-school student recruitment support, and rental-space/event services across three sub-brands.

Ownership category

akta.pro rank

Product category

Staffing and Recruitment Services

NAICS

Temporary Help Services (56132), Temporary Help Services (561320)

SIC

Services-Employment Agencies (7361), Services-Help Supply Services (7363)

akta.pro primary industry

Recruiting Administration Outsourcing (Recruitment Support, Scheduling, Onboarding Ops) (BPACAKAG)

akta.pro secondary industry

Job Readiness Training & Soft Skills Development (EDAKANAD)

Keywords

• Temporary staffing services
• Employment placement services
• Vocational recruitment support
• Career consulting services
• Dispatch worker services

Headquarters

HQ city

Toshima

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Others, Infrastructure

Revenue model

1. Staffing/Dispatch Services (人材派遣): Provides temporary staffing services placing workers with client companies. Companies pay for the staffing services based on worker hours and assigned roles.
2. Fee-based Employment Placement (有料職業紹介): Introduction services matching job seekers with companies for direct employment. Revenue likely generated from placement fees charged to companies upon successful placement.
3. Specialized Student Recruitment Support (専門学生採用支援): Provides recruitment support services for companies seeking to hire specialized school students, including job fair facilitation, recruitment book distribution, and web services.
4. Rental Space Business (レンタルスペース): Rents meeting rooms and event spaces at their 目白 location. Revenue from hourly space rental fees.
5. Training and Events (研修・インイベント事業): Organizes and operates training programs and events. Also provides speaking/lecture services by their representative on topics including women's career advancement and work-style reform.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels7 records

Core offering

MITADENSHIKEISAN provides temporary staffing dispatch and fee-based employment placement services to corporate clients in IT, hospitality, manufacturing, and services via its L'étincelle Carrière brand, specializing in office work, data entry, light work, and registered dietitian roles. Through the Sourire Carrière brand, it runs a specialized recruitment-support service that connects vocational-school students with companies via dual print/web media, job fairs, and on-campus information sessions at ~700 schools in the Tokyo metropolitan area. A smaller Sourire Project line rents meeting/event space near JR Mejiro Station and operates training and events.

Product overview

MITADENSHIKEISAN operates as a comprehensive staffing and employment service company founded in 1971, organized around three main brands: (1) L'étincelle Carrière (レタンセルキャリア) — a staffing and placement service specializing in office work with over 50 years of experience, (2) Sourire Carrière (スーリールキャリア) — a specialized student recruitment support service targeting vocational school students with dual print and web media channels, and (3) Sourire Project (スーリールプロジェクト) — a rental space and training/events business offering venues and organized events. The company serves both corporate clients seeking talent and individual job seekers across all segments.

Differentiator

Problem solved

Functional benefit

Brands

• レタンセルキャリア (L'étincelle Carrière): 人材派遣紹介サービス。50年以上の実績と信頼誇る人材サービス。オフィスワーク系職種に特化した専門性ときめ細やかな対応力で、求職者樣にも企業樣にも最適なマッチングを行う。
• スーリールキャリア (Sourire Carrière)
• スーリールプロジェクト (Sourire Project)

Products and services

• L'étincelle Carrière (レタンセルキャリア) Staffing dispatch and fee-based employment placement service specializing in office work, data entry, light work, and registered dietitian roles; connects job seekers with companies and provides ongoing support through dedicated staff including nationally certified career consultants. For both individual job seekers and corporate clients.
• Sourire Carrière (スーリールキャリア) Specialized-student recruitment-support service that connects companies seeking young talent with vocational school students via a dual print Recruit Book plus web platform reaching ~700 vocational schools in Tokyo and five surrounding prefectures, plus on-campus joint company information sessions. For corporate clients, students, and educational institutions.
• Sourire Project (スーリールプロジェクト) Rental space and training/events business offering meeting rooms and event spaces near JR Mejiro Station (3-minute walk) for meetings, workshops, training, and exchange events; also provides lecture/speaking services by representative Harada Yukiko on women's career advancement and work-style reform. For individuals and small organizations.

Quantifiable outcome

• Tens of thousands of staff members supported and placed throughout company history
• +1 more outcomes

Named customers4 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Partnerships

Four partnerships are on record, tiered minor.

• 東京商工会議所 (Tokyo Chamber of Commerce and Industry)minorOthersMember of Tokyo Chamber of Commerce and Industry, participating in Organization and Member Services Improvement Committee and Toshima Branch Council.
• 公益社団法人 埼玉県情報サービス産業協会 (Saitama Information Services Industry Association)minorOthersBoard member (理事) of the Saitama Information Services Industry Association, supporting the IT services industry ecosystem.
• 一般社団法人 日本人材派遣協会 (Japan Staffing Services Association)minorOthersMember of the Japan Staffing Services Association, the industry organization for staffing companies in Japan.
• 公益社団法人 豊島法人会 (Toshima Association of Corporations)minorOthersMember of the Toshima Association of Corporations, contributing to the local business community in Toshima ward.

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• En-Japan: Mid-sized Japanese HR services firm operating job boards (en Haken, en Tensor) and placement services. Comparable mid-tier competitor in placement and temporary staffing.
• Hito Communications: Smaller Japanese staffing firm focused on office work and clerical placement. Most directly comparable in scale and service mix to MITADENSHIKEISAN's L'étincelle Carrière brand.
• Dip Corporation: Operates Hatarako.net, a major Japanese job board for part-time and temporary workers. Competes for the same job seeker and corporate client base through different delivery model.
• WDB (WDB Holdings): Japanese staffing firm with comparable size focused on specialized talent placement. Comparable scale and similar focus on white-collar and specialized staffing.

Broad incumbents

• Adecco Japan: Global staffing leader with established Japanese subsidiary providing temporary staffing and placement services. Competes in office/administrative staffing categories.
• Persol Holdings: Major Japanese staffing and HR services firm operating Tempstaff, doda, and other brands. Competes in temporary staffing and permanent placement but operates at national scale with thousands of employees.
• Pasona Group: Large Japanese staffing and outsourcing firm offering temporary staffing, permanent placement, and BPO services. Comparable in staffing services but operates nationally and internationally.
• ManpowerGroup Japan: Global staffing firm with significant Japanese operations. Provides temporary staffing and permanent placement in similar categories to MITADENSHIKEISAN.
• Recruit Holdings: Japan's largest HR services conglomerate operating Indeed, Rikunabi, and multiple staffing brands. Directly competes in the same staffing/placement market but with vastly greater scale, technology, and geographic reach.
• Tempstaff (Temp Holdings): One of Japan's largest temporary staffing agencies with broad industry coverage. Direct competitor in office work and general staffing categories.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

Compliance1 record

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 MITADENSHIKEISAN