What share of managers are women at Rozai Kogyo Co., Ltd.?

6.1%, as reported to MHLW's women's-advancement database (as of March 2026).

What is the gender pay gap at Rozai Kogyo Co., Ltd.?

Women's average pay as a percentage of men's: 73.8% across all employees, 62.4% among regular employees, 85.3% among non-regular employees. This compares average pay, not pay for the same job.

How much overtime do employees at Rozai Kogyo Co., Ltd. work, and how much paid leave do they take?

Average overtime is 10.8 hours a month (median for the same industry and size: 16.0 hours), as reported to MHLW's women's-advancement database.

How long do employees stay at Rozai Kogyo Co., Ltd.?

Average tenure is 14.5 years for men and 12.8 years for women.

← Construction in Osaka

Construction·Osaka·101–300 employees

Rozai Kogyo Co., Ltd.

Japanese name: ロザイ工業株式会社 · English rendering · Corporate number 4120001048519 · 日本語

Rozai Kogyo Co., Ltd. (ロザイ工業株式会社), a construction employer in Osaka with 101–300 employees, reports in the Ministry of Health, Labour and Welfare's women's-advancement database that 6.1% of its managers are women, women's average pay is 62.4% of men's among regular employees (as of March 2026).

Women's advancement and leave

Women in management

6.1%

Median, same industry and size: 4.0%

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

73.8%

Median, same industry and size: 70.0%

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

62.4%

Median, same industry and size: 71.8%

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

85.3%

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 March 2026.

Working hours and retention

Average monthly overtime

10.8 hrs

Median, same industry and size: 16.0 hrs

Paid leave taken

Not published

Median, same industry and size: 70.8%

Average tenure, men

14.5 yrs

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

Average tenure, women

12.8 yrs

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

Construction in Osaka

TAKENAKA CORPORATIONWomen managers 6.2%
JR West Electric Tech Co., Ltd.Women managers 1.0%
Panasonic Homes Co., Ltd.Women managers 8.1%
JR West Japan Rail Tech Co., Ltd.Women managers 1.3%
Ontex Co., Ltd.1001–5000 employees
Kanden Engineering Co., Ltd.Women managers 0.8%
Osaka Gas Facilities Co., Ltd.1001–5000 employees
Kanden Plant Co., Ltd.Women managers 0.5%

Every construction employer in Osaka →

Questions this page answers

What share of managers are women at Rozai Kogyo Co., Ltd.?: 6.1%, as reported to MHLW's women's-advancement database (as of March 2026).
What is the gender pay gap at Rozai Kogyo Co., Ltd.?: Women's average pay as a percentage of men's: 73.8% across all employees, 62.4% among regular employees, 85.3% among non-regular employees. This compares average pay, not pay for the same job.
How much overtime do employees at Rozai Kogyo Co., Ltd. work, and how much paid leave do they take?: Average overtime is 10.8 hours a month (median for the same industry and size: 16.0 hours), as reported to MHLW's women's-advancement database.
How long do employees stay at Rozai Kogyo Co., Ltd.?: Average tenure is 14.5 years for men and 12.8 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.