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

34.1%, as reported to MHLW's women's-advancement database (as of March 2026).

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

Women's average pay as a percentage of men's: 54.3% across all employees, 90.2% among regular employees, 121.3% among non-regular employees. This compares average pay, not pay for the same job.

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

Average overtime is 6.1 hours a month (median for the same industry and size: 8.2 hours), as reported to MHLW's women's-advancement database.

How long do employees stay at Z Kai Co., Ltd.?

Average tenure is 17.6 years for men and 18.0 years for women.

← Education in Shizuoka

Education·Shizuoka·501–1000 employees

Z Kai Co., Ltd.

Japanese name: 株式会社 Z会 · English rendering · Corporate number 9080101006434 · 日本語

Z Kai Co., Ltd. (株式会社 Z会), a education employer in Shizuoka with 501–1000 employees, reports in the Ministry of Health, Labour and Welfare's women's-advancement database that 34.1% of its managers are women, women's average pay is 90.2% of men's among regular employees (as of March 2026).

Women's advancement and leave

Women in management

34.1%

Median, same industry and size: 23.0%

Women among new hires

43.8%

Median, same industry and size: 48.3%

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

54.3%

Median, same industry and size: 74.0%

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

90.2%

Median, same industry and size: 81.8%

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

121.3%

Median, same industry and size: 93.8%

Men taking childcare leave

Not published

Median, same industry and size: 57.1%

Eruboshi (level 3)Platinum EruboshiKurumin

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

6.1 hrs

Median, same industry and size: 8.2 hrs

Paid leave taken

Not published

Median, same industry and size: 66.9%

Average tenure, men

17.6 yrs

Median, same industry and size: 12.9 yrs

Average tenure, women

18.0 yrs

Median, same industry and size: 11.9 yrs

Education in Shizuoka

Kura Zemi Co., Ltd.1001–5000 employees
National University Corporation Shizuoka UniversityWomen managers 31.4%
Educational Foundation Tokoha UniversityWomen managers 31.3%
Educational Foundation Shizuoka Institute of Science and TechnologyWomen managers 21.3%
Interac Kansai Tokai Co., Ltd.Women managers 0.0%
Educational Foundation Seirei Gakuen301–500 employees
Educational Foundation Shin Shizuoka GakuenWomen managers 25.0%
Educational Foundation Shizuoka Jidosha GakuenWomen managers 0.0%

Every education employer in Shizuoka →

Questions this page answers

What share of managers are women at Z Kai Co., Ltd.?: 34.1%, as reported to MHLW's women's-advancement database (as of March 2026).
What is the gender pay gap at Z Kai Co., Ltd.?: Women's average pay as a percentage of men's: 54.3% across all employees, 90.2% among regular employees, 121.3% among non-regular employees. This compares average pay, not pay for the same job.
How much overtime do employees at Z Kai Co., Ltd. work, and how much paid leave do they take?: Average overtime is 6.1 hours a month (median for the same industry and size: 8.2 hours), as reported to MHLW's women's-advancement database.
How long do employees stay at Z Kai Co., Ltd.?: Average tenure is 17.6 years for men and 18.0 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.