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Plastics & rubber·Tokyo·501–1000 employees

Kobayashi Co., Ltd.

Japanese name: 株式会社コバヤシ · English rendering · Corporate number 1010501004506 · 日本語

Kobayashi Co., Ltd. (株式会社コバヤシ), a plastics & rubber employer in Tokyo with 501–1000 employees, reports in the Ministry of Health, Labour and Welfare's women's-advancement database that 10.9% of its managers are women, women's average pay is 69.4% of men's among regular employees, 50.0% of eligible fathers took childcare leave (as of March 2026).

Women's advancement and leave

Women in management
10.9%
Median, same industry and size: 5.1%
Women among new hires
44.6%
Median, same industry: 33.3%
Women's pay as % of men's, all
68.3%
Median, same industry and size: 66.1%
Women's pay as % of men's, regular
69.4%
Median, same industry and size: 74.8%
Women's pay as % of men's, non-regular
57.8%
Median, same industry and size: 72.2%
Men taking childcare leave
50.0%
Median, same industry: 77.0%

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
11.9 hrs
Median, same industry: 12.3 hrs
Paid leave taken
Not published
Median, same industry: 73.0%
Average tenure, men
11.3 yrs
Median, same industry: 14.0 yrs
Average tenure, women
9.2 yrs
Median, same industry: 11.5 yrs

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Questions this page answers

What share of managers are women at Kobayashi Co., Ltd.?
10.9%, as reported to MHLW's women's-advancement database (as of March 2026).
What is the gender pay gap at Kobayashi Co., Ltd.?
Women's average pay as a percentage of men's: 68.3% across all employees, 69.4% among regular employees, 57.8% among non-regular employees. This compares average pay, not pay for the same job.
How many fathers take childcare leave at Kobayashi Co., Ltd.?
50.0% of eligible men took childcare leave.
How much overtime do employees at Kobayashi Co., Ltd. work, and how much paid leave do they take?
Average overtime is 11.9 hours a month (median for the same industry: 12.3 hours), as reported to MHLW's women's-advancement database.
How long do employees stay at Kobayashi Co., Ltd.?
Average tenure is 11.3 years for men and 9.2 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.