Water and waste ยท 5000 to 19,999 staff

Thames Water Utilities Limited

Company number 02366661 ยท Last year's median gap 10.0%

Thames Water Utilities Limited, an employer in water and waste with 5000 to 19,999 staff, reported a median hourly gender pay gap of 8.8% for 2025-26, above the sector median of 5.5% (UK Gender Pay Gap Service).

Key figures

8.8%median hourly pay gap (sector median 5.5%)
28.0%of the top pay quartile are women
0.0%median bonus gap
MeasureThis employerSector medianAll employers
Median hourly pay gap
how much less women earn per hour than men, at the median
8.8%5.5%8.0%
Mean hourly pay gap5.5%5.1%10.6%
Median bonus gap0.0%0.5%13.9%
Women paid a bonus86.2%53.3%22.0%
Men paid a bonus89.5%66.8%23.0%
Women in the top pay quartile28.0%19.1%40.6%
Women in the lowest pay quartile41.0%26.1%56.3%
Women in the workforce (from quartiles)30.5%18.7%48.8%

A positive gap means men are paid more; a negative gap means women are. Sector: Water and waste (84 employers).

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Source: UK Gender Pay Gap Service, 2025-26 reports (open data, Open Government Licence v3.0). Every employer with 250 or more staff reports its gender pay gap each year. Compiled by The Hardest Market.