Financial review continued
Divisional performance continued Cyber Security continued Comparing the two halves of the year against their respective prior period comparatives, Cyber Security revenue by service and capability is analysed as follows:
Constant currency 1 6 month period ended 31 March 2024 £m
6 month period ended 31 March 2025 £m
6 month period ended 31 March 2025 £m
6 month period ended 31 March 2024 £m
% change at constant currency 1
% change at actual rates
45.6 21.9 37.7
45.6 21.9 37.7
Technical Assurance Services (TAS) Consulting and Implementation (C&I)
52.9 22.7 36.9
(13.8%) (3.5%)
52.2 22.5 36.6
(12.6%) (2.7%)
Managed Services (MS)
2.2%
3.0%
6.3 0.5
6.3 0.5
Digital Forensics and Incident Response (DFIR)
7.7 0.5
(18.2%)
7.6 0.6
(17.1%) (16.7%) (6.3%) (9.4%)
Other services
—
Cyber Security revenue (excluding Crypto and DetACT)
112.0
112.0
120.7
(7.2%) (12.9%)
119.5
11.5
11.5
Crypto and DetACT
13.2
12.7
Total Cyber Security revenue
123.5
123.5
133.9
(7.8%)
132.2
(6.6%)
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
42.8 26.6 38.7
42.8 26.6 38.7
Technical Assurance Services (TAS) Consulting and Implementation (C&I)
52.8 19.5 37.5
(18.9%)
51.8 19.1 37.7
(17.4%) 39.3%
36.4%
Managed Services (MS)
3.2% (8.1%)
2.7%
6.8 0.5
6.8 0.5
Digital Forensics and Incident Response (DFIR)
7.4 1.4
7.4 1.3
(8.1%)
Other services
(64.3%)
(61.5%)
Cyber Security revenue (excluding Crypto and DetACT)
115.4
115.4
118.6
(2.7%)
117.3
(1.6%)
—
—
Crypto and DetACT
10.7
(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 service and capability, 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
42.8 26.6 38.7
Technical Assurance Services (TAS) Consulting and Implementation (C&I)
45.6 21.9 37.7
(6.1%)
21.5%
Managed Services (MS)
2.7% 7.9%
6.8 0.5
Digital Forensics and Incident Response (DFIR)
6.3 0.5
Other services
—
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%)
1 R evenue at constant currency is an unaudited Alternative Performance Measures (APMs) and not an IFRS measure. See unaudited Appendix 1 for an explanation of APMs and adjusting items, including a reconciliation to statutory information.
NCC Group plc — Annual report and accounts for the year ended 30 September 2025 48
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