What share of managers are women at Nihon Kaiko Co., Ltd.?

2.4%, as reported to MHLW's women's-advancement database (as of April 2026).

How long do employees stay at Nihon Kaiko Co., Ltd.?

Average tenure is 23.0 years for men and 4.0 years for women.

Nihon Kaiko Co., Ltd.

Japanese name: 日本海工株式会社 · English rendering · Corporate number 9140001012187 · 日本語

Nihon Kaiko Co., Ltd. (日本海工株式会社), a construction employer in Hyogo with 101–300 employees, reports in the Ministry of Health, Labour and Welfare's women's-advancement database that 2.4% of its managers are women (as of April 2026).

Women's advancement and leave

Women in management

2.4%

Median, same industry and size: 4.0%

Women among officers

0.0%

Median, same industry and size: 0.0%

Women's pay as % of men's, all

Not published

Median, same industry and size: 70.0%

Women's pay as % of men's, regular

Not published

Median, same industry and size: 71.8%

Women's pay as % of men's, non-regular

Not published

Median, same industry and size: 63.6%

Men taking childcare leave

Not published

The pay figures compare women's average pay with men's, not pay for the same job. Data as of April 2026.

Working hours and retention

Average monthly overtime

Not published

Median, same industry and size: 16.0 hrs

Paid leave taken

Not published

Median, same industry and size: 70.8%

Average tenure, men

23.0 yrs

Employment category not stated, so not comparable with other employers.

Average tenure, women

4.0 yrs

Employment category not stated, so not comparable with other employers.

Construction in Hyogo

Kobelco E&M Co., Ltd.Women managers 4.9%
Yamato Juken Co., Ltd.Women managers 4.6%
Okura Service Co., Ltd.301–500 employees
Arai Gumi Co., Ltd.301–500 employees
Kubota Kensetsu Co., Ltd.Women managers 1.7%
Hamada Co., Ltd.Women managers 0.0%
Hirochiku Co., Ltd.Women managers 3.7%
Taiyo Kogyo Co., Ltd.Women managers 0.7%

Every construction employer in Hyogo →

Questions this page answers

What share of managers are women at Nihon Kaiko Co., Ltd.?: 2.4%, as reported to MHLW's women's-advancement database (as of April 2026).
How long do employees stay at Nihon Kaiko Co., Ltd.?: Average tenure is 23.0 years for men and 4.0 years for women.

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 includes

Source: 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.