ENVALITH
鉄建建設株式会社 logo

TEKKEN CORPORATION

1815Prime MarketConstruction

鉄建建設株式会社 logo
TEKKEN CORPORATION1815

Civil Engineering Works

The earnings backbone of Tekken Corporation. A civil engineering-focused segment with strengths in railway and infrastructure works.

PeriodCurrentPreviousChange
Segment revenue (external customers + internal, FY2026 ending March 2026)¥91,165 million¥89,047 million
Segment profit (FY2026 ending March 2026)¥3,583 million¥3,497 million
Segment profit margin (FY2026 ending March 2026)3.9%3.9%
Depreciation and amortization (FY2026 ending March 2026)¥304 million¥293 million
Individual orders received, total civil engineering (FY2026 ending March 2026)¥115,030 million¥87,997 million
Individual completed construction revenue, total civil engineering (FY2026 ending March 2026)¥89,396 million¥87,571 million
Individual backlog, total civil engineering (end of FY2026 ending March 2026)¥188,403 million¥162,768 million
Revenue from East Japan Railway Company (consolidated, FY2026 ending March 2026)¥41,658 million¥39,264 million
Impairment loss (Civil Engineering Works segment, FY2026 ending March 2026)¥9 million¥0 million

Business Details

Engages in civil engineering contracting as well as survey, planning, surveying, design, supervision, management, and consulting. Serves both public and private sector clients, holding a strong market share in railway construction with the East Japan Railway (JR East) group. In FY2026 (ending March 2026), segment revenue was ¥91,165 million, accounting for approximately 50.7% of total company revenue, making it the core segment. Currently constructing large-scale projects including the new Haneda Airport access line and the Shinagawa Station north entrance plaza.

Recent Overview

Orders received expanded significantly, up 30.7% year-on-year to ¥115,030 million, and the backlog also built up to a record-high level.

In FY2026 (ending March 2026), Civil Engineering Works segment revenue was ¥91,165 million (up 2.4% year-on-year) and segment profit was ¥3,583 million (up 2.5% year-on-year), a modest increase in both revenue and profit. Meanwhile, individual orders received expanded significantly to ¥115,030 million (up 30.7% year-on-year), of which railway orders received were ¥93,152 million (up 36.6% year-on-year). Backlog built up to ¥188,403 million (up 15.8% year-on-year), forming a foundation for future revenue expansion. Large-scale projects such as the new Haneda Airport access line construction and defense-related works contributed. An impairment loss of ¥9 million was recorded at some branch offices.

Key Products

service
Civil Engineering Contracting

Undertakes civil engineering works including railway construction, tunnels, bridges, and underground works. Leveraging technical capabilities developed through construction near active railway lines, receives orders from both public and private sectors. Holds one of the largest market shares domestically in the railway field.

service
Survey, Design, Management & Consulting

Provides integrated services from pre- and post-construction surveys and design through to construction supervision and management. Leveraging technical capabilities, develops high-value-added upstream process services.

service
Overseas Civil Engineering Works

Conducts civil engineering works in the Asia region. Overseas revenue in FY2026 (ending March 2026) was ¥3,598 million (on a completed construction revenue basis). Discussions with a JV partner company on a project in South Asia have become protracted, resulting in a referral to arbitration at an international arbitration court.

Growth Drivers

  • Continuation of a stable public investment order environment against the backdrop of national resilience initiatives and aging infrastructure countermeasures (domestic public sector orders received in FY2026 ending March 2026 were ¥58,732 million, up 59.9% year-on-year)
  • Steady construction progress on large-scale railway infrastructure projects such as the new Haneda Airport access line construction and the Shinagawa Station north entrance plaza
  • Expansion of market share through strengthened collaboration with the JR East group (revenue from East Japan Railway Company was ¥41,658 million, approximately 23.2% of consolidated revenue)
  • Establishment of a foundation for medium-term revenue expansion through railway orders received of ¥93,152 million (up 36.6% year-on-year) and backlog of ¥188,403 million (up 15.8% year-on-year)
  • Improved productivity and operational efficiency through DX promotion, including the introduction of ICT construction machinery and utilization of generative AI
  • Strengthened cost reduction and profit generation capability through thorough selective order-taking and centralized management

Risks

  • Risk of profit margin compression due to continuing increases in construction costs (labor and material costs) (operating margin on revenue remains at a low level of 3.9%)
  • Constraints on construction capacity due to labor shortages and tight supply-demand balance, particularly among skilled workers
  • Risk of recording allowance for doubtful accounts due to protracted discussions with a JV partner company on a South Asia construction project and referral to international arbitration (¥2,633 million recorded in the current period)
  • Continuing risk of impairment loss recognition, as operating income/loss at some branch offices has remained negative on an ongoing basis
  • Customer concentration risk due to revenue concentration with East Japan Railway Company (approximately 23.2% of consolidated revenue)
  • Decline in overseas business profit contribution due to a shrinking trend in overseas orders received (overseas orders received in FY2026 ending March 2026 were ¥1,368 million, down 42.8% year-on-year)

Last updated: June 23, 2026