THE SIGMA TRUST
THE SIGMA TRUST 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 Monday, 16 Mar 2026 at 09:54 UTC.
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 23.2%
Submitted on Monday, 16 Mar 2026 at 09:54 UTC.
In this organisation, women earned 59p for every £1 that men earned when comparing median hourly pay.
Women made up 60.7% of the highest paid quarter and 89.7% of the lowest paid quarter.
Pay quartile breakdown
2024 Mean pay gap 22.1%
Submitted on Monday, 3 Mar 2025 at 10:07 UTC.
In this organisation, women earned 59p for every £1 that men earned when comparing median hourly pay.
Women made up 60.6% of the highest paid quarter and 87.9% of the lowest paid quarter.
Pay quartile breakdown
2023 Mean pay gap 24.2%
Submitted on Thursday, 7 Mar 2024 at 13:36 UTC.
In this organisation, women earned 58p for every £1 that men earned when comparing median hourly pay.
Women made up 59.4% of the highest paid quarter and 88.1% of the lowest paid quarter.
Pay quartile breakdown
2022 Mean pay gap 23.0%
Submitted on Thursday, 2 Feb 2023 at 14:07 UTC.
In this organisation, women earned 56p for every £1 that men earned when comparing median hourly pay.
Women made up 61.4% of the highest paid quarter and 87.4% of the lowest paid quarter.
Pay quartile breakdown
2021 Mean pay gap 24.0%
Submitted on Tuesday, 8 Mar 2022 at 09:22 UTC.
In this organisation, women earned 57p for every £1 that men earned when comparing median hourly pay.
Women made up 61.0% of the highest paid quarter and 89.3% of the lowest paid quarter.
Pay quartile breakdown
2020 Mean pay gap 25.0%
Submitted on Friday, 20 Aug 2021 at 13:33 UTC.
In this organisation, women earned 55p for every £1 that men earned when comparing median hourly pay.
Women made up 59.2% of the highest paid quarter and 88.7% of the lowest paid quarter.
Pay quartile breakdown
2019 Mean pay gap 22.8%
Submitted on Friday, 20 Aug 2021 at 13:40 UTC.
In this organisation, women earned 58p for every £1 that men earned when comparing median hourly pay.
Women made up 60.3% of the highest paid quarter and 85.6% of the lowest paid quarter.
Pay quartile breakdown
2018 Mean pay gap 25.9%
Submitted on Thursday, 28 Mar 2019 at 22:47 UTC.
In this organisation, women earned 58p for every £1 that men earned when comparing median hourly pay.
Women made up 61.7% of the highest paid quarter and 86.0% of the lowest paid quarter.
Pay quartile breakdown
2017 Mean pay gap 25.7%
Submitted on Friday, 30 Mar 2018 at 11:10 UTC.
In this organisation, women earned 61p for every £1 that men earned when comparing median hourly pay.
Women made up 65.8% of the highest paid quarter and 86.4% of the lowest paid quarter.
Pay quartile breakdown