ENVALITH
株式会社関電工 logo

KANDENKO CO.,LTD.

1942Prime MarketConstruction

株式会社関電工 logo
KANDENKO CO.,LTD.1942

Facility Construction Business

The core business of the Kandenko Group, an electrical and piping construction-focused segment that accounts for the majority of net sales

PeriodCurrentPreviousChange
Consolidated net sales (completed construction revenue)¥742,022 million¥671,888 million
Consolidated operating income¥83,140 million¥58,326 million
Consolidated ordinary income¥84,981 million¥59,498 million
Profit attributable to owners of parent¥63,516 million¥42,380 million
Comprehensive income¥75,742 million¥45,492 million

Business Details

This is the sole reportable segment of the Kandenko Group, which handles electrical and piping work along with general facility construction. In addition to the parent company, a total of 24 companies—including Kawasaki Setsubi Kogyo, Kandenko Facilities, and the various regional Keitechno and Powertechno companies—are responsible for construction, design, and security operations. The TEPCO Group is the largest customer, and the segment consists of four work categories: indoor wiring and environmental facility construction, information and communications construction, distribution line construction, and engineering-related construction.

Recent Overview

FY2026 (ending March 2026) saw substantial growth in both sales and operating income, with comprehensive income revised upward to ¥75,742 million after correction

In FY2026 (ending March 2026), consolidated net sales reached ¥742,022 million (up 10.4% year on year), and operating income reached ¥83,140 million (up 42.5% year on year), achieving substantial growth in both revenue and profit. Profit attributable to owners of parent also grew strongly to ¥63,516 million (up 49.9% year on year). Separately, a correction to the earnings report was made effective June 1, 2026, correcting an aggregation error in the revaluation reserve for land that is a component of comprehensive income; as a result, comprehensive income for the fiscal year under review was revised from ¥75,600 million to ¥75,742 million (up 66.5% year on year).

Key Products

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Indoor Wiring and Environmental Facility Construction

The mainstay work category responsible for construction of electrical equipment, air conditioning, and sanitary facilities in private and public buildings. Demand is expanding for AI and semiconductor factories as well as data centers.

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Distribution Line Construction

New construction, renovation, and renewal work on distribution lines, with the TEPCO Group as the primary customer. Captures demand from power companies' planned facility renewal under the revenue cap system.

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Information and Communications Construction

Construction of information and communications infrastructure for telecom carriers and corporations. Demand growth is expected in line with digitalization and DX promotion.

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Engineering-Related Construction

Maintenance and renewal work on power infrastructure, including transmission and substation facilities and civil engineering-related work. Order volume trends in line with power companies' capital investment plans.

Growth Drivers

  • Sustained high level of private construction investment driven by expanding demand for AI and semiconductor factory and data center construction
  • Increase in planned facility renewal work by power companies under the revenue cap system
  • Strengthening of renewal proposal sales activities addressing decarbonization, disaster prevention, and BCP needs
  • Promotion of DX and productivity improvement through the penetration and expansion of back-office functions
  • Accumulation of order backlog reflected in the high level of construction work carried over to the next period

Risks

  • High dependence on sales to the TEPCO Group means changes in that group's investment plans directly affect business performance
  • Risk of construction loss provisions arising from errors in estimating construction costs
  • Risk of rising construction costs due to difficulty securing construction personnel and increasing labor costs
  • Risk that global economic uncertainty stemming from U.S. trade policy spills over into domestic construction investment
  • Risk of impairment losses occurring in the facility construction business segment

Last updated: June 22, 2026