SI

What SI does

SI Co., Ltd. (株式会社エス・アイ) is a privately held Japanese business process outsourcing company headquartered in Himeji, Hyogo Prefecture, with a secondary office in Hiroshima City. Founded in March 1991 with 10 million yen registered capital and currently employing 51-100 staff, the company serves local and regional businesses across the Kansai and Chugoku regions. SI delivers services across three operational pillars: data processing (data entry with an entry-verify double-check workflow, document scanning with OCR, and aggregation/analysis); outsourcing (back-office support, direct mail, and a call center operating 365 days); and web/design services (website creation, the Harimarche regional portal covering 20 cities/towns in Hyogo Prefecture, and promotional design). The company also operates an IT personnel dispatch service following a labor dispatch license obtained in January 2024.

Revenue is generated through transaction fees for data processing, professional services fees for outsourcing and IT staffing, and advertising/promotional revenue from the Harimarche portal. Pricing is quote-based and customized to client requirements, data volume, and project scope. Go-to-market is sales-led, relying on direct outreach, referrals, and a regional reputation earned over three decades, with customer acquisition supplemented by extensive earned media coverage (Nihon Keizai Shimbun, Asahi Shimbun, NHK, BS Asahi, etc.) and recurring case studies in government and institutional publications. Customers are predominantly small and medium-sized local businesses, with selected enterprise exposure including Japan Post Insurance, which featured SI in its 2024 Kanpo Scope Vol.168 publication.

Underlying technology centers on manual entry-verify workflows, OCR-enabled scanning, and integration with TIDEX/Windex general-purpose data entry systems through a partnership with TK-Use Co., Ltd. The company has held a JIPDEC Privacy Mark certification (number 20000686) since March 2006, enabling compliant handling of personal information, and has received multiple government recognitions — including METI's Diversity Management 100 (2013) and the Cabinet Office Prime Minister's Award (2016) — for its distinctive Dutch-style work-sharing system. SI is controlled by its founder and management, led by Representative Director Imamoto Shigeo (今本茂男), and has not raised external funding since founding.

Name

SI

Legal name

株式会社エス・アイ

Website

https://si-himeji.co.jp

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

51–100 employees

Short description

SI Co., Ltd. (株式会社エス・アイ) is a Himeji, Japan-based BPO firm founded in 1991 that provides data entry, document scanning, back-office, call center, direct mail, web design, and IT staffing services to local and regional businesses across the Kansai and Chugoku regions.

Ownership category

akta.pro rank

Headquarters

HQ city

Himeji

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Data Processing Services: Revenue from data entry, aggregation, analysis, and scanning services. Services are quoted based on volume and complexity of data processing requirements.
2. Outsourcing Services: Back-office services, direct mail, and call center services billed based on service scope and volume.
3. IT Staffing/Temporary Staffing: IT support personnel dispatch services. Matching clients with IT engineers and web designers based on their specific needs and requirements.
4. Portal Site Operations: Operation of Harimarche portal site for Harima region information. Revenue may come from advertising and promotional partnerships with local businesses.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

SI Co., Ltd. provides business process outsourcing services including data entry, aggregation and analysis, document scanning, back office support, direct mail production, call center operations, website creation and maintenance, promotional design and printing, IT personnel dispatch, and operation of the Harimarche regional portal site. Services are delivered to local and regional businesses, government institutions, and public-sector clients primarily in Hyogo Prefecture (Harima region) and Hiroshima Prefecture from offices in Himeji and Hiroshima.

Product overview

SI (株式会社エス・アイ) is a data processing and business process outsourcing company headquartered in Himeji, Hyogo Prefecture, Japan. The company operates three interconnected service divisions: (1) Data Processing Services covering data entry, aggregation/analysis, and document scanning; (2) Outsourcing Services including back office support, direct mail, and call center operations; and (3) Web/Design Services offering website creation, portal site operation (Harimarche), and promotional design. The company also provides IT personnel dispatch services. Founded in 1991, SI has been recognized for its innovative work-life balance practices, including work-sharing and flexible attendance systems.

Differentiator

Problem solved

Functional benefit

Brands

• はりまるしぇ: A regional portal site operated by SI Co., Ltd. that provides information about the Harima region in Hyogo Prefecture, including local products, events, and recommended spots.

Quantifiable outcome

• Zero overtime achieved through work-sharing implementation

Named customers1 record

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators3 records

Recent moves12 records

Expansion highlights5 records

Broad incumbents

• Persol Holdings: Major Japanese staffing and IT services group (formerly Intelligence). Comparable to SI's IT engineer/web designer dispatch business, plus broader outsourcing.
• Transcosmos: Major Japanese BPO and contact center operator. Far larger than SI, with services spanning data entry, call centers, back-office, and digital — directly overlaps SI's core outsourcing stack, but at national/international scale.
• Bell System24 Holdings: One of Japan's largest call center and BPO providers. Comparable to SI's call center and back-office offerings, but serving enterprise and government clients nationally.
• Toppan Holdings: Major Japanese printing and information communications group. Overlaps with SI on document scanning, data processing, and BPO services for regulated industries — but at vastly larger scale.
• Pasona Group: Japanese staffing and BPO conglomerate. Comparable to SI across IT staffing/dispatch, back-office outsourcing, and human resource services.
• Dai Nippon Printing (DNP): Japanese printing conglomerate with information services division. Comparable on document digitization, data processing, and BPO offerings for financial and public-sector clients.

Direct peers

• Will Group: Japanese staffing/dispatch group with focus on IT and sales force outsourcing. Closely comparable to SI's IT engineer dispatch line.
• Trust Contact: Japanese call center and back-office BPO. Comparable to SI's call center and back-office service line.
• MK System: Smaller Japanese data entry/processing specialist. Closely comparable to SI in scale and service mix (data entry, aggregation, OCR, scanning).

Regional players

• Careerlink: Japanese staffing and BPO provider. Comparable on back-office, call center, and administrative outsourcing; mostly operates in different geographies from SI but in similar functions.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 SI