TETRA TECH ENVIRONMENTAL MANAGEMENT LIMITED

TETRA TECH ENVIRONMENTAL MANAGEMENT LIMITED has submitted data every year since 2017, with all 9 submissions on time.

This company has been viewed 0 times in the last 30 days.

Last submission received on Tuesday, 31 Mar 2026 at 13:01 UTC.

Employer ID 10679
Company Number 01756175
Employer Size 1000 to 4999
Years Submitted
201720182019202020212022202320242025

Overall workforce composition

Deviation from a 50:50 gender split, averaged across all four pay quartiles per year. 0% represents an equal split of men and women; positive values mean more women, negative means fewer women.

Hourly pay gap over time

Positive values indicate women's hourly pay is lower than men's by that percentage. A value of 0 indicates equal pay; negative values indicate women earn more.

Pay quartile breakdown

Each band shows the percentage of that quartile that is male vs female.

Lower quartile bottom 25% of earners

Lower-middle quartile 25–50th percentile

Upper-middle quartile 50–75th percentile

Top quartile top 25% of earners

Bonus pay

Percentage of each gender who received a bonus payment.

Bonus pay gap — positive values indicate women's bonus pay is lower than men's.

Year by year

Each year's submission in full. Most recent year shown first.

2025 Mean pay gap -13.2%

In this organisation, women earned £1.16 for every £1 that men earned when comparing median hourly pay.

Women's median bonus pay was 62.5% higher than men's.

Women made up 32.9% of the highest paid quarter and 19.4% of the lowest paid quarter.

Mean hourly pay gap -13.2%
Median hourly pay gap -15.7%
Men receiving bonus 27.0%
Women receiving bonus 17.0%
Mean bonus gap 14.7%
Median bonus gap -62.5%

Pay quartile breakdown

Women
Men
Top quartile 32.9%
67.1%
Upper-middle 40.4%
59.6%
Lower-middle 27.0%
73.0%
Lower quartile 19.4%
80.6%
2024 Mean pay gap -5.7%

In this organisation, women earned £1.12 for every £1 that men earned when comparing median hourly pay.

Women's median bonus pay was 50.0% higher than men's.

Women made up 41.0% of the highest paid quarter and 18.0% of the lowest paid quarter.

Mean hourly pay gap -5.7%
Median hourly pay gap -12.4%
Men receiving bonus 31.9%
Women receiving bonus 19.0%
Mean bonus gap 20.4%
Median bonus gap -50.0%

Pay quartile breakdown

Women
Men
Top quartile 41.0%
59.0%
Upper-middle 22.0%
78.0%
Lower-middle 23.0%
77.0%
Lower quartile 18.0%
82.0%
2023 Mean pay gap -15.4%

In this organisation, women earned £1.15 for every £1 that men earned when comparing median hourly pay.

Women made up 39.0% of the highest paid quarter and 19.0% of the lowest paid quarter.

Mean hourly pay gap -15.4%
Median hourly pay gap -14.6%
Men receiving bonus 30.8%
Women receiving bonus 7.0%
Mean bonus gap 24.7%
Median bonus gap 0.0%

Pay quartile breakdown

Women
Men
Top quartile 39.0%
61.0%
Upper-middle 23.0%
77.0%
Lower-middle 21.0%
79.0%
Lower quartile 19.0%
81.0%
2022 Mean pay gap -12.9%

In this organisation, women earned £1.17 for every £1 that men earned when comparing median hourly pay.

Women's median bonus pay was 28.7% lower than men's.

Women made up 39.0% of the highest paid quarter and 16.0% of the lowest paid quarter.

Mean hourly pay gap -12.9%
Median hourly pay gap -16.9%
Men receiving bonus 24.3%
Women receiving bonus 4.7%
Mean bonus gap 32.4%
Median bonus gap 28.7%

Pay quartile breakdown

Women
Men
Top quartile 39.0%
61.0%
Upper-middle 23.0%
77.0%
Lower-middle 21.0%
79.0%
Lower quartile 16.0%
84.0%
2021 Mean pay gap -19.5%

In this organisation, women earned £1.14 for every £1 that men earned when comparing median hourly pay.

Women's median bonus pay was 12.3% lower than men's.

Women made up 36.0% of the highest paid quarter and 15.0% of the lowest paid quarter.

Mean hourly pay gap -19.5%
Median hourly pay gap -14.3%
Men receiving bonus 25.7%
Women receiving bonus 3.9%
Mean bonus gap 9.8%
Median bonus gap 12.3%

Pay quartile breakdown

Women
Men
Top quartile 36.0%
64.0%
Upper-middle 21.0%
79.0%
Lower-middle 18.0%
82.0%
Lower quartile 15.0%
85.0%
2020 Mean pay gap -16.8%

In this organisation, women earned £1.14 for every £1 that men earned when comparing median hourly pay.

Women's median bonus pay was 25.0% lower than men's.

Women made up 34.0% of the highest paid quarter and 9.0% of the lowest paid quarter.

Mean hourly pay gap -16.8%
Median hourly pay gap -14.3%
Men receiving bonus 27.0%
Women receiving bonus 7.0%
Mean bonus gap 58.2%
Median bonus gap 25.0%

Pay quartile breakdown

Women
Men
Top quartile 34.0%
66.0%
Upper-middle 22.0%
78.0%
Lower-middle 26.0%
74.0%
Lower quartile 9.0%
91.0%
2019 Mean pay gap -1.1%

In this organisation, women earned £1.03 for every £1 that men earned when comparing median hourly pay.

Women's median bonus pay was 37.6% lower than men's.

Women made up 19.0% of the highest paid quarter and 9.0% of the lowest paid quarter.

Mean hourly pay gap -1.1%
Median hourly pay gap -2.9%
Men receiving bonus 22.0%
Women receiving bonus 14.0%
Mean bonus gap 73.1%
Median bonus gap 37.6%

Pay quartile breakdown

Women
Men
Top quartile 19.0%
81.0%
Upper-middle 19.0%
81.0%
Lower-middle 21.0%
79.0%
Lower quartile 9.0%
91.0%
2018 Mean pay gap -2.1%

In this organisation, women earned £1.03 for every £1 that men earned when comparing median hourly pay.

Women's median bonus pay was 17.9% lower than men's.

Women made up 12.5% of the highest paid quarter and 8.0% of the lowest paid quarter.

Mean hourly pay gap -2.1%
Median hourly pay gap -2.7%
Men receiving bonus 38.8%
Women receiving bonus 34.7%
Mean bonus gap 35.9%
Median bonus gap 17.9%

Pay quartile breakdown

Women
Men
Top quartile 12.5%
87.5%
Upper-middle 11.4%
88.6%
Lower-middle 12.9%
87.1%
Lower quartile 8.0%
92.0%
2017 Mean pay gap -3.2%

In this organisation, women earned £1.02 for every £1 that men earned when comparing median hourly pay.

Women's median bonus pay was 150.0% higher than men's.

Women made up 11.7% of the highest paid quarter and 6.7% of the lowest paid quarter.

Mean hourly pay gap -3.2%
Median hourly pay gap -2.3%
Men receiving bonus 31.4%
Women receiving bonus 16.3%
Mean bonus gap 10.1%
Median bonus gap -150.0%

Pay quartile breakdown

Women
Men
Top quartile 11.7%
88.3%
Upper-middle 11.2%
88.8%
Lower-middle 12.6%
87.4%
Lower quartile 6.7%
93.3%