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

14.3%, as reported to MHLW's women's-advancement database (as of March 2026).

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

employees take 65.2% of their paid leave (median: 76.0%), as reported to MHLW's women's-advancement database.

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

Average tenure is 10.0 years for men and 8.0 years for women.

← Other services in Aichi

Other services·Aichi·501–1000 employees

Serum Co., Ltd.

Japanese name: 株式会社セラム · English rendering · Corporate number 6180001049880 · 日本語

Serum Co., Ltd. (株式会社セラム), a other services employer in Aichi with 501–1000 employees, reports in the Ministry of Health, Labour and Welfare's women's-advancement database that 14.3% of its managers are women (as of March 2026).

Women's advancement and leave

Women in management

14.3%

Median, same industry and size: 11.5%

Women among new hires

90.0%

Median, same industry and size: 38.9%

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

Not published

Median, same industry and size: 74.5%

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

Not published

Median, same industry and size: 78.9%

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

Not published

Median, same industry and size: 80.5%

Men taking childcare leave

Not published

Median, same industry and size: 66.7%

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

Not published

Median, same industry and size: 11.4 hrs

Paid leave taken

65.2%

Median, same industry and size: 76.0%

Average tenure, men

10.0 yrs

Median, same industry and size: 11.3 yrs

Average tenure, women

8.0 yrs

Median, same industry and size: 9.0 yrs

Other services in Aichi

Cores Co., Ltd.Women managers 6.2%
Taisei Co., Ltd.Women managers 11.4%
J-net Rent-a-Lease Co., Ltd.Women managers 8.8%
UT3M Co., Ltd.Women managers 0.0%
IR Co., Ltd.Women managers 25.0%
Advanced Logistics Solutions Co., Ltd.1001–5000 employees
NBS Co., Ltd.1001–5000 employees
Conix Co., Ltd.Women managers 9.3%

Every other services employer in Aichi →

Questions this page answers

What share of managers are women at Serum Co., Ltd.?: 14.3%, as reported to MHLW's women's-advancement database (as of March 2026).
How much overtime do employees at Serum Co., Ltd. work, and how much paid leave do they take?: employees take 65.2% of their paid leave (median: 76.0%), as reported to MHLW's women's-advancement database.
How long do employees stay at Serum Co., Ltd.?: Average tenure is 10.0 years for men and 8.0 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.