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SANKI SERVICE CORPORATION

6044Standard MarketServices

株式会社三機サービス logo
SANKI SERVICE CORPORATION6044

Maintenance Business

Core business responsible for comprehensive maintenance of building facilities. Accounts for approximately 89% of consolidated net sales.

PeriodCurrentPreviousChange
Net Sales¥21,697 million¥18,573 million
Segment Profit¥1,070 million¥909 million
Segment Profit Margin4.9%4.9%
Segment Assets¥8,442 million¥8,269 million
Depreciation and Amortization¥54 million¥89 million
Net Sales to Lawson¥2,466 million¥2,570 million

Business Details

Provides maintenance for all types of building facilities including air conditioning equipment, kitchen equipment, electrical equipment, and water supply/drainage sanitary equipment. Deploys specialized engineers and leverages a partner network to provide nationwide coverage. Centered on 24-hour, 365-day emergency repair response via Call Center (Emergency Repair Response), the business offers a wide range of services from regular maintenance and Preservation Maintenance (Preventive Maintenance) to Energy-Saving Services & Equipment Renewal Work and Total Maintenance Service. Main customers are multi-store retail, food service, medical, and educational institutions, with Lawson, Inc. being the largest customer.

Recent Overview

Net sales increased 16.8% due to higher orders for large-scale equipment renewal projects, while margin remained flat.

In FY2026 (ending May 2026), Maintenance Business net sales were ¥21,697 million (up 16.8% year on year), and segment profit was ¥1,070 million (up 17.7% year on year). While increased orders for large-scale equipment renewal projects drove sales growth, in the Total Maintenance Service business, the company undertook a review of its service delivery framework in light of changes in circumstances related to transactions with certain customers that occurred in the prior fiscal year, aiming for sustained maintenance and improvement of service quality. Net sales to Lawson, the largest customer, decreased to ¥2,466 million from ¥2,570 million in the prior period. The segment profit margin was maintained at the same level as the prior period, at 4.9%.

Key Products

service
Total Maintenance Service

Undertakes comprehensive repair and Preservation Maintenance for building facilities on behalf of multi-store, multi-facility customers such as retail, food service, medical, nursing care, welfare, developers, and schools. Actively proposes Preservation Maintenance to reduce the occurrence of sudden breakdowns.

service
Energy-Saving Services & Equipment Renewal Work

Against a backdrop of rising energy costs, the company proposes energy-saving services tailored to customers' equipment conditions to curb excessive energy consumption. Orders for large-scale equipment renewal projects contributed to increased sales in FY2026 (ending May 2026). The company aims to improve profit margins by promoting in-house construction capabilities.

service
Preservation Maintenance (Preventive Maintenance)

Suppresses the occurrence of sudden equipment breakdowns through regular inspections and Preservation Maintenance of facility equipment. Contributes to reducing customers' facility maintenance management costs through preventive maintenance proposals utilizing data analysis.

platform
Call Center (Emergency Repair Response)

Provides 24-hour, 365-day emergency repair response through call centers at two domestic locations and one in Shanghai, China. Achieves rapid on-site response centered on the technical capabilities, know-how, and organizational strength of service engineers.

Growth Drivers

  • Sales expansion through increased orders for large-scale equipment renewal projects (contributed to a 16.8% year-on-year increase in FY2026, ending May 2026)
  • Expansion of Total Maintenance Service to multi-store customers (retail, food service, medical, educational institutions, etc.)
  • Increased demand for energy-saving services amid growing needs to reduce facility maintenance management costs against a backdrop of rising energy costs
  • Improved profit margins through promotion of in-house construction capabilities (multi-skilled workforce development, use of training centers)
  • Enhanced human capital investment and advanced consultative sales capabilities under the Medium-Term Management Plan 2026-2028

Risks

  • Risk of reduced regular maintenance order amounts due to policy changes by certain customers (a review of the service delivery framework also occurred in FY2026, ending May 2026)
  • Rising outsourcing and operating costs due to crude oil price increases and energy cost fluctuations
  • Increasing difficulty in securing partners (outsourcing contractors) and maintaining quality
  • Risk of deteriorating profitability due to estimation errors in construction costs for large-scale equipment renewal projects
  • Increased costs for securing and training personnel (rising labor costs are a factor pushing up SG&A expenses)
  • Risk of changes to business operations and organizational structure associated with the management integration with Shin Maintenance HD through a share exchange (scheduled to take effect on December 1, 2026)

Last updated: August 29, 2025