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FourthLine is a specialist operational resilience consultancy built for mid-tier UK financial services firms regulated by the FCA and PRA. We solve a specific problem: regulated firms must meet the same technical evidencing standards as the largest players in their sector, but cannot sustain large consultancy fees - and their internal teams often lack the specialist knowledge to build board-ready and regulator-ready evidence independently. FourthLine closes that gap. Senior practitioner delivery throughout. The expert you engage is the one on-site - not a junior team working under remote oversight. Delivery track record includes: - Mid Tier Lloyds Insurer - operational resilience programme from IBS mapping through scenario testing to board evidence pack - Mid Tier UK Insurer - Op Res and BCM programme with regulatory evidencing aligned to PRA SS1/21 and FCA SYSC 15A - Mid Tier Private Bank - full resilience programme including supplier exit planning and annual testing - Mid Tier UK Challenger Bank - SS1/21 and DORA-aligned Scenario Recovery Testing delivery - UK's Leading Investment Platform - operational resilience programme - Mid Tier Asset Manager - resilience framework and scenario testing for an FCA-authorised investment manager - Mid Tier UK wealth management platform - operational resilience delivery Core service lines: - Operational Resilience Diagnostic Assessment — fixed-scope gap analysis against PRA SS1/21, FCA SYSC 15A, and DORA evidencing standards. 4–6 weeks. £15k–£25k. - Annual Resilience Retainer - 12-month programme delivering quarterly scenario testing, IBS maintenance, board-ready reporting, and regulatory evidence management. From £60k p.a. - Supplier Exit Testing Managed Service - structured exit plan stress testing against SS2/21 and DORA requirements. Diagnostic or full programme. - Full Programme Delivery - Business Continuity Management, Third Party Risk Management, ICT Disaster Recovery, and Cyber Resilience.

FourthLine Questions

The FourthLine annual revenue was $17.5 million in 2026.

Kieran Maplesden is the Founder and Managing Director - FS Operational Resilience of FourthLine.

52 people are employed at FourthLine.

The NAICS codes for FourthLine are [56, 561].

The SIC codes for FourthLine are [736, 73].

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