Constant currency 1 6 month
6 month period ended 30 September 2025 £m
6 month period ended 30 September 2025 £m
6 month period ended 30 September 2024 £m
period ended 30 September 2024 £m
% change at constant currency 1
% change at actual rates
69.0 28.1 18.3
69.0 28.1 18.3
UK and APAC North America
66.4 33.6 18.4
3.9%
66.2 32.2 18.9
4.2%
(16.4%) (0.5%)
(12.7%) (3.2%)
Europe (excluding Crypto and DetACT)
Cyber Security revenue (excluding Crypto and DetACT)
115.4
115.4
118.4
(2.5%)
117.3
(1.6%)
—
—
Crypto and DetACT
10.9
(100.0%)
11.0
(100.0%)
Total Cyber Security revenue
115.4
115.4
129.3
(10.8%)
128.3
(10.1%)
From a Cyber Security revenue trajectory perspective by originating region, the following tables compare H2 2025 performance with H1 2025:
6 month period ended 30 September 2025 £m
6 month period ended 31 March 2025 £m
% change at actual rates
69.0 28.1 18.3
UK and APAC North America
65.4 28.6 18.0
5.5%
(1.7%)
Europe (excluding Crypto and DetACT)
1.7%
Cyber Security revenue (excluding Crypto and DetACT)
115.4
112.0
3.0%
—
Crypto and DetACT
11.5
(100.0%)
Total Cyber Security revenue
115.4
123.5
(6.6%)
Cyber Security revenue analysis – by type of service and capability:
Constant currency 1 16 month
16 month period ended 30 September 2024 £m
Year ended 30 September 2025 £m
Year ended 30 September 2025 £m
period ended 30 September 2024 £m
% change at constant currency 1
% change at actual rates
88.4 48.5 76.4 13.1 12.5
88.4 48.5 76.4 13.1 12.5
Technical Assurance Services (TAS) Consulting and Implementation (C&I)
141.4 55.2
(37.5%) (12.1%) (16.8%) (36.4%) (62.2%)
138.9
(36.4%) (11.2%) (16.2%) (35.8%) (61.7%)
54.6 91.2 20.4 32.6
Managed Services (MS)
91.8 20.6 33.1
Digital Forensics and Incident Response (DFIR)
Other services
Total Cyber Security revenue
238.9
238.9
342.1
(30.2%)
333.7
(28.4%)
Cyber Security revenue, analysed year on year by service and capability, is as follows:
Constant currency 1 12 month
12 month period ended 30 September 2024 £m
Year ended 30 September 2025 £m
Year ended 30 September 2025 £m
period ended 30 September 2024 £m
% change at constant currency 1
% change at actual rates
88.4 48.5 76.4 13.1
88.4 48.5 76.4 13.1
Technical Assurance Services (TAS) Consulting and Implementation (C&I)
105.6
(16.3%)
104.0
(15.0%)
42.2 74.5 15.1
14.9%
41.6 74.3 15.0
16.6%
Managed Services (MS)
2.6%
2.8%
Digital Forensics and Incident Response (DFIR)
(13.2%) (44.4%) (4.9%) (52.1%)
(12.7%) (47.4%) (4.0%) (51.5%)
1.0
1.0
Other services
1.8
1.9
Cyber Security revenue (excluding Crypto and DetACT)
227.4
227.4
239.2
236.8
11.5
11.5
Crypto and DetACT
24.0
23.7
Total Cyber Security revenue
238.9
238.9
263.2
(9.2%)
260.5
(8.3%)
NCC Group plc — Annual report and accounts for the year ended 30 September 2025 47
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