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

2.6%, as reported to MHLW's women's-advancement database (as of March 2025).

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

Women's average pay as a percentage of men's: 72.8% across all employees, 77.2% among regular employees, 74.1% among non-regular employees. This compares average pay, not pay for the same job.

How many fathers take childcare leave at Proterial Co., Ltd.?

25.9% of eligible men took childcare leave.

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

Average overtime is 1.1 hours a month (median for the same industry: 15.0 hours), and employees take 79.5% of their paid leave (median: 75.7%), as reported to MHLW's women's-advancement database.

How long do employees stay at Proterial Co., Ltd.?

Average tenure is 17.9 years for men and 9.6 years for women.

← Metals & metal products in Tokyo

Metals & metal products·Tokyo·5001+ employees

Proterial Co., Ltd.

Japanese name: 株式会社プロテリアル · English rendering · Corporate number 3010401038783 · 日本語

Proterial Co., Ltd. (株式会社プロテリアル), a metals & metal products employer in Tokyo with 5001+ employees, reports in the Ministry of Health, Labour and Welfare's women's-advancement database that 2.6% of its managers are women, women's average pay is 77.2% of men's among regular employees, 25.9% of eligible fathers took childcare leave (as of March 2025).

Women's advancement and leave

Women in management

2.6%

Median, same industry: 1.9%

Women among officers

4.0%

Median, same industry: 0.0%

Women among new hires

0.0%

Median, same industry: 21.3%

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

72.8%

Median, same industry: 74.0%

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

77.2%

Median, same industry: 76.9%

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

74.1%

Median, same industry: 72.9%

Men taking childcare leave

25.9%

Median, same industry: 75.0%

Eruboshi (level 3)

The pay figures compare women's average pay with men's, not pay for the same job. Data as of March 2025.

Working hours and retention

Average monthly overtime

1.1 hrs

Median, same industry: 15.0 hrs

Paid leave taken

79.5%

Median, same industry: 75.7%

Average tenure, men

17.9 yrs

Median, same industry: 16.1 yrs

Average tenure, women

9.6 yrs

Median, same industry: 12.4 yrs

Metals & metal products in Tokyo

JFE Steel Co., Ltd.Women managers 2.7%
YKK AP Co., Ltd.Women managers 7.1%
YKK CORPORATIONWomen managers 10.9%
Artemira Seikan Co., Ltd.Women managers 4.9%
Tanico Co., Ltd.Women managers 4.8%
A.L.M.T. Corp.Women managers 1.4%
Tetsugen Co., Ltd.Women managers 1.2%
Sanwa Shutter Kogyo Co., Ltd.1001–5000 employees

Every metals & metal products employer in Tokyo →

Questions this page answers

What share of managers are women at Proterial Co., Ltd.?: 2.6%, as reported to MHLW's women's-advancement database (as of March 2025).
What is the gender pay gap at Proterial Co., Ltd.?: Women's average pay as a percentage of men's: 72.8% across all employees, 77.2% among regular employees, 74.1% among non-regular employees. This compares average pay, not pay for the same job.
How many fathers take childcare leave at Proterial Co., Ltd.?: 25.9% of eligible men took childcare leave.
How much overtime do employees at Proterial Co., Ltd. work, and how much paid leave do they take?: Average overtime is 1.1 hours a month (median for the same industry: 15.0 hours), and employees take 79.5% of their paid leave (median: 75.7%), as reported to MHLW's women's-advancement database.
How long do employees stay at Proterial Co., Ltd.?: Average tenure is 17.9 years for men and 9.6 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.