Verified Client Reviews & Case Studies

Real engagement outcomes from regulated organisations across the UK, EU, US, and Middle East. Penetration testing, PCI DSS, SOC 2, and incident response work with publicly verifiable sources.

#5
Cybersecurity Consulting
in the United Kingdom
Clutch · May 2026
Independently
verified
Client reviews on Clutch
and public consulting platforms
5-star reviews
Same day
Response on scoping requests
during business hours
Avg 1 hour
3
Global offices
UK · US · UAE
Established 2023
Independent recognition

Ranked among the Top Cybersecurity Consulting Companies in the UK

RedSecLabs is independently ranked #5 in Clutch's Leaders Matrix for UK cybersecurity consulting (May 2026), evaluated on verified client reviews, focus, and ability to deliver.

View the ranking
Client reviews

What clients say about working with us

Selected reviews from recent engagements. All testimonials are independently verifiable on the platform of origin or have been formally approved by the client for publication.

Cloud Security & Web App Pentest
★ ★ ★ ★ ★

“Thanks to RedSecLabs, the client transitioned from an early-stage security setup to a more enterprise-ready security posture. The team managed the project professionally, delivering the agreed work on time. They were responsive, communicative, and flexible in accommodating evolving requirements.”

Cybersecurity Review & Application Testing
★ ★ ★ ★ ★

“RedSecLabs identified potential high-risk entry points and backdoors for attackers to enter the client's system. The team recommended measures to tighten security. RedSecLabs delivered work on time and responded to all communications, and their commitment to resolving issues was outstanding.”

Secure Code Review
★ ★ ★ ★ ★

“RedSecLabs was easy to work with, completed on time, didn't go over the estimated hours, and produced what we wanted. Would work with them again.”

PCI DSS Compliance Programme
★ ★ ★ ★ ★

“RedSecLabs delivered outstanding PCI-DSS compliance support with clear communication, timely delivery, and proactive solutions. Highly recommend their expertise.”

DevSecOps Framework & VDP
★ ★ ★ ★ ★

“RedSecLabs improved the security posture of Bykea by formulating a Cybersecurity Framework for Developers and incorporating DevSecOps. They also improved Bykea's vulnerability disclosure programme (VDP) by preparing end-to-end process documents and developing relevant policies.”

Ongoing security advisory
★ ★ ★ ★ ★

“RedSecLabs has been instrumental in solving Work Generations' cybersecurity challenges. Their expert team provides protection and swift responses to potential threats.”

Published case study

Real investigation, full writeup

Published case studies from RSL incident response and offensive security engagements, approved by clients.

Incident Response

E-commerce Credit Card Stealer Backdoor Investigation

RedSecLabs was contracted to perform a backdoor analysis for a large e-commerce platform after customers reported patterns of credit card misuse linked to their purchases. The investigation traced the attack path, identified the injection vector, and produced a containment plan.

Sector: E-commerce Service: Forensic Investigation Outcome: Attack path traced, injection vector identified
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