UK-based · Bristol & London · Est. 2015
What moves beneath, we see first.
Merrow is a cybersecurity consultancy built by people who've handled the 3am call, not just watched the dashboard. Detection, response and board-level risk advisory for organisations that can't afford to find out the hard way.
11min
Average time to first human triage on a critical alert
9yrs
Since Merrow's first incident response engagement
24/7
SOC coverage, Bristol and London
1:6
Analyst-to-account caseload cap, held below industry norm
Where to start
Three ways to find what you're looking for.
By service
I know what I need
MDR, penetration testing, incident response and seven more — browse the full catalogue.
By industry
I need someone who understands my sector
Financial services, legal, healthcare and critical infrastructure — sector-specific context and regulation.
By outcome
I have a specific problem to solve
Cyber insurance readiness, post-incident recovery — outcome-led combinations of our services.
Case study
Contained before it reached a single client-facing system.
A mid-sized wealth management firm detected unusual encryption activity on a file server at 2:40am. In-house IT had no incident playbook and no forensic capability to determine scope.
- Retainer team on-site within the contracted SLA window
- Affected segment isolated within the first hour, containing lateral spread before it reached the core policy administration system
- Parallel forensic investigation to establish initial access vector while containment was underway
47 min
From alert to full containment
Meridian Trust · Financial Services
More outcomes
Case studies
Financial Services
Meridian Trust
A mid-sized wealth management firm detected unusual encryption activity on a file server at 2:40am. In-house IT had no incident playbook and no forensic capability to determine scope.
Critical Infrastructure
Northgate Logistics
A logistics operator running a hybrid AWS/on-prem estate had no 24/7 monitoring and a three-person IT team already stretched thin on operational work.
Legal
Aldermere & Co.
A conveyancing-heavy law firm needed to demonstrate Cyber Essentials Plus certification to a major lender panel, on a deadline that didn't allow for a slow remediation cycle.
Thought leadership
Insights
Detection Engineering
Alert volume is not a security metric
Why the number of alerts a platform generates tells you almost nothing about whether your organisation is actually safer.
Elena Marsh · 2 Jun 2026
Compliance
DORA is a resilience test, not a compliance checkbox
What actually changes operationally for UK-serving financial firms under DORA, beyond the paperwork.
Merrow Research Team · 14 May 2026
Incident Response
The first 90 minutes of a ransomware event
A breakdown of the decisions that determine containment scope, drawn from anonymised patterns across Merrow's retainer caseload.
Tomás Reyes · 22 Apr 2026
Know your exposure before your board asks.
A 30-minute risk consultation, with someone who's handled the incident, not just sold the monitoring platform.