Seia Co., Ltd.
Japanese name: 株式会社セイア · English rendering · Corporate number 1480001007532 · 日本語
Seia Co., Ltd. (株式会社セイア), a construction employer in Tokyo with 101–300 employees, reports in the Ministry of Health, Labour and Welfare's women's-advancement database that 0.0% of its managers are women, women's average pay is 65.1% of men's among regular employees (as of April 2024).
Women's advancement and leave
The pay figures compare women's average pay with men's, not pay for the same job. Data as of April 2024.
Working hours and retention
Construction in Tokyo
- ICHIJO CO.,LTD.Women managers 2.7%
- Hitachi Building Systems Co., Ltd.Women managers 2.8%
- Mitsubishi Electric Building Solutions Co., Ltd.Women managers 1.8%
- JFE Plant Engi Co., Ltd.1001–5000 employees
- JR East Japan Biltec Co., Ltd.Women managers 3.3%
- KDDI Engineering Co., Ltd.Women managers 3.1%
- NEC Facilities Co., Ltd.Women managers 2.9%
- NX Engineering Co., Ltd.Women managers 1.0%
Every construction employer in Tokyo →
Questions this page answers
- What share of managers are women at Seia Co., Ltd.?
- 0.0%, as reported to MHLW's women's-advancement database (as of April 2024).
- What is the gender pay gap at Seia Co., Ltd.?
- Women's average pay as a percentage of men's: 63.0% across all employees, 65.1% among regular employees, 43.6% among non-regular employees. This compares average pay, not pay for the same job.
- How much overtime do employees at Seia Co., Ltd. work, and how much paid leave do they take?
- employees take 62.0% of their paid leave (median: 70.8%), as reported to MHLW's women's-advancement database.
Japan Human Capital Data 2026
Every figure for about 36,000 unlisted employers and 3,789 listed companies at once: percentile ranks within each industry and size band, women among supervisors, ten-year retention by gender, women's leave uptake, and every foreign-owned subsidiary flagged with its parent. In a members' dashboard and as Excel and CSV.
What Professional includesSource: Ministry of Health, Labour and Welfare, women's-advancement database (open data), as of 2026-10-06; figures are self-reported by each employer and checked for plausibility by The Hardest Market. 女性の活躍推進企業データベースオープンデータ(2026年10月6日時点)を加工して作成.