IRON MOUNTAIN (UK) PLC
IRON MOUNTAIN (UK) PLC has submitted data every year since 2017, with all 8 submissions on time.
This company has been viewed 0 times in the last 30 days.
Last submission received on Tuesday, 31 Mar 2026 at 16:12 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 13.6%
Submitted on Tuesday, 31 Mar 2026 at 16:12 UTC.
In this organisation, women earned 69p for every £1 that men earned when comparing median hourly pay.
Women's median bonus pay was 16.3% lower than men's.
Women made up 33.3% of the highest paid quarter and 63.3% of the lowest paid quarter.
Pay quartile breakdown
2024 Mean pay gap 24.7%
Submitted on Tuesday, 25 Mar 2025 at 10:20 UTC.
In this organisation, women earned 62p for every £1 that men earned when comparing median hourly pay.
Women's median bonus pay was 30.0% lower than men's.
Women made up 19.8% of the highest paid quarter and 44.1% of the lowest paid quarter.
Pay quartile breakdown
2023 Mean pay gap 23.0%
Submitted on Thursday, 28 Mar 2024 at 15:53 UTC.
In this organisation, women earned 69p for every £1 that men earned when comparing median hourly pay.
Women's median bonus pay was 31.5% lower than men's.
Women made up 28.2% of the highest paid quarter and 58.2% of the lowest paid quarter.
Pay quartile breakdown
2022 Mean pay gap 29.2%
Submitted on Tuesday, 4 Apr 2023 at 11:23 UTC.
In this organisation, women earned 62p for every £1 that men earned when comparing median hourly pay.
Women's median bonus pay was 39.2% lower than men's.
Women made up 29.8% of the highest paid quarter and 67.0% of the lowest paid quarter.
Pay quartile breakdown
2021 Mean pay gap 35.5%
Submitted on Wednesday, 30 Mar 2022 at 09:26 UTC.
In this organisation, women earned 56p for every £1 that men earned when comparing median hourly pay.
Women's median bonus pay was 55.1% lower than men's.
Women made up 23.0% of the highest paid quarter and 67.0% of the lowest paid quarter.
Pay quartile breakdown
2020 Mean pay gap 22.7%
Submitted on Wednesday, 14 Jul 2021 at 14:07 UTC.
In this organisation, women earned 67p for every £1 that men earned when comparing median hourly pay.
Women's median bonus pay was 58.2% lower than men's.
Women made up 35.6% of the highest paid quarter and 63.3% of the lowest paid quarter.
Pay quartile breakdown
2018 Mean pay gap 29.1%
Submitted on Wednesday, 3 Apr 2019 at 15:56 UTC.
In this organisation, women earned 67p for every £1 that men earned when comparing median hourly pay.
Women's median bonus pay was 54.7% lower than men's.
Women made up 28.7% of the highest paid quarter and 65.0% of the lowest paid quarter.
Pay quartile breakdown
2017 Mean pay gap 24.0%
Submitted on Tuesday, 3 Apr 2018 at 22:30 UTC.
In this organisation, women earned 71p for every £1 that men earned when comparing median hourly pay.
Women's median bonus pay was 53.9% lower than men's.
Women made up 27.3% of the highest paid quarter and 63.6% of the lowest paid quarter.
Pay quartile breakdown