CompaniesInTheUK

DIAMOND LIGHT SOURCE LIMITED

Company number 04375679 ·

Active

Gender pay gap

In the 2025/26 reporting year, women's median hourly pay here was 10.44% lower than men's (500 to 999 employees).

That puts it around the middle of the pack for pay parity — closer to an equal median than 46% of the 9,642 employers who reported for 2025/26. See the pay gap league table.

Within scientific research and development it is around the middle of the pack of 72 sector employers who reported.

-20.0% to -17.5%: 122 employers -17.5% to -15.0%: 40 employers -15.0% to -12.5%: 52 employers -12.5% to -10.0%: 82 employers -10.0% to -7.5%: 95 employers -7.5% to -5.0%: 125 employers -5.0% to -2.5%: 250 employers -2.5% to 0.0%: 553 employers 0.0% to 2.5%: 1,886 employers 2.5% to 5.0%: 835 employers 5.0% to 7.5%: 698 employers 7.5% to 10.0%: 599 employers 10.0% to 12.5%: 578 employers 12.5% to 15.0%: 527 employers 15.0% to 17.5%: 487 employers 17.5% to 20.0%: 438 employers 20.0% to 22.5%: 388 employers 22.5% to 25.0%: 356 employers 25.0% to 27.5%: 302 employers 27.5% to 30.0%: 253 employers 30.0% to 32.5%: 197 employers 32.5% to 35.0%: 159 employers 35.0% to 37.5%: 131 employers 37.5% to 40.0%: 489 employers -20% -10% 0 +10% +20% +30% +40% ← women paid more men paid more → this company

All 9,642 reporting employers for 2025/26 by median gap. 0 is equal pay; bars right of it are employers where men's median pay is higher, bars left of it where women's is.

-100% -80% -60% -40% -20% 0 +20% +40% 2017/18 2018/19 2019/20 2020/21 2021/22 2022/23 2023/24 2024/25 2025/26 2017/18: 6.4% 2018/19: 5.8% 2019/20: 2.9% 2020/21: 7.7% 2021/22: 5.7% 2022/23: 7.2% 2023/24: 6.7% 2024/25: 13.74% 2025/26: 10.44% Median gap 2017/18: 12.1% 2018/19: 11.3% 2019/20: 7.7% 2020/21: 11.8% 2021/22: 10.3% 2022/23: 9.1% 2023/24: 8% 2024/25: 7.63% 2025/26: 7.13% Mean gap 2017/18: 0% 2018/19: -100% 2019/20: 0% 2020/21: 0% 2021/22: -100% 2022/23: 16.7% 2023/24: 28.6% 2024/25: 4.9% 2025/26: -23.08% Median bonus gap

The gap has widened since the 6.4% reported for 2017/18.

YearMedian gapMean gapBonus gap Women in top pay quartileWomen in lowest
2025/26 10.44% 7.13% -23.08% 17% 29%
2024/25 13.74% 7.63% 4.9% 16.5% 32.3%
2023/24 6.7% 8% 28.6% 15.1% 31.2%
2022/23 7.2% 9.1% 16.7% 14.3% 29.4%
2021/22 5.7% 10.3% -100% 15% 31.6%
2020/21 7.7% 11.8% 0% 13% 33%
2019/20 2.9% 7.7% 0% 16% 31.2%
2018/19 5.8% 11.3% -100% 13.3% 31.4%
2017/18 6.4% 12.1% 0% 11.2% 28.9%

Reported by the employer under the gender pay gap regulations — full report on the official service. Contains public sector information licensed under the Open Government Licence v3.0.