Penetration Testing and Adversary Simulation Specialists

At Pentesys, we combine human-led penetration testing, intelligent automation and continuous monitoring in our assurance platform and portal, to provide your organisation with comprehensive, end-to-end protection – keeping your systems secure, compliant, and resilient.

“Cybersecurity is about trust - protecting what matters.”

— James Hinton,

Founder

0 K+
Completed Security Assessments
Continuous Penetration Testing

Continuously test your environment with adaptive penetration testing that mirrors real threat behavior.

98% Client Satisfaction

Transparent results, actionable insights – not automated scans.

0 +

Real insights, actionable fixes, and long-term protection – not automated reports.

Trusted Cybersecurity Experts You Can Rely On

Continuous Penetration Testing

Our mission is Continuous Penetration Testing and enabling businesses to evolve from static, point in time tests, at fixed times in the year. We believe assurance is the key and not just testing.

Pentesting as a Service (PTaaS)

PTaaS, or Penetration Testing as a Service is our approach to Enable organisations to continuously assess their security posture through an ongoing, managed testing service tailored to their environment., with ease and flexibility.

Our approach allows you to see the whole testing lifecycle and manage your programme, and make it work with your business.

This allows you to manage your testing, on your terms. No more rushing fixes or being driven by a fixed test date.

Manage, track, and report on cybersecurity services through our client portal, which provides real-time visibility into ongoing testing and remediation.

You can develop a strategic approach to testing, moving away from reactive testing.

We aim to help businesses achieve Continuous Penetration Testing

See how our platform enables continuous, adaptive penetration testing – explore the portal in action.

The Pentesys Portal

All our services are driven by the Pentesys Portal – developed in-house with the sole purpose of enabling penetration testing and simplifying the whole lifecycle.

Once onboarded, our team works with you to scope, schedule, and deliver continuous and on-demand security testing aligned to your needs

Connect the portal to your own security tooling and ticketing system and augment your tests and systems with Pentesys data.

How We Secure You

At Pentesys, we secure your business every step of the way – from testing and reporting to remediation and continuous monitoring.

01

Plan & Scope

Define testing type, assets, and objectives quickly via the Pentest Portal.

02

Test & Assess

Perform human-led penetration testing across networks and applications.

03

Report & Remediate

Deliver clear findings with actionable remediation guidance for your team.

04

Monitor & Retest

Track progress in real time, retest issues, and maintain ongoing security.

Our Cybersecurity Services

If you don’t see exactly what you need, don’t worry – we’re here to help. Contact us anytime, and we’ll guide you or provide the right solution for your security needs.

Penetration Testing

Human-led testing to uncover vulnerabilities across networks, apps, and systems.

Technician inspecting server rack with tablet

Vulnerability Assessments

Identify weaknesses and prioritize fixes to strengthen security quickly.

Man stressed while analyzing complex digital dashboard

Red & Purple Teaming

Simulated attacks to test defenses and improve your security posture.
Manager reviewing laptop with cybersecurity team

Cyber Essentials

Assessments to meet UK compliance and regulatory standards.
Security operations center with analysts at multiple monitors

Why choose Pentesys?

Other Portals
Select test types
Set up test scope
Organise test date
Test time estimates
Test cost estimate
Organise more tests
Reorganise test dates
Sign off test authorisation
See test progress
Testing MI and Dashboard
Download test results
Download test report
Organise re-tests
Manage your testing programme for a year
Connect into other Security tooling and ITSM systems

Enterprise-Grade Penetration Testing, Built Around Your Business

CREST-registered penetration testing delivered through a flexible PTaaS model – designed to fit your environment, risk profile, and internal teams.

Proven. Accredited. Trusted.

Work With Us on Your Terms

Whether you need a single test or a long-term security partner, Pentesys adapts to you:

No forced schedules. No rushed remediation. Just testing that fits your business.

Built to Work With Your Teams

More Than Penetration Testing - We provide the insight, expertise, and remediation guidance

Our services extend beyond penetration testing to support every stage of your security journey. We help you understand risk, prioritise action, and remediate effectively — not just identify issues.
Three business professionals holding tablet at event

Save time and book a call with us

Have a glance at the calendar and select a good time for you.

Cybersecurity Knowledge You Can Trust

Get practical tips, industry updates, and expert guidance – all focused on real-world security challenges and proven solutions.

How to Read a Penetration Test Report: A Strategic Guide for 2026
How to Read a Penetration Test Report: A Strategic Guide for 2026
A penetration test report is not a simple checklist of technical failures; it’s a strategic risk narrative that determines your organisation’s…
Vendor Security Assessment Services: A Strategic Guide to Third-Party Assurance
Vendor Security Assessment Services: A Strategic Guide to Third-Party Assurance
Organizations experience an average of 12 third-party breaches every year, a figure that persists despite the thousands of hours teams spend…
Third Party Security Validation Testing: The Comprehensive 2026 Guide
Third Party Security Validation Testing: The Comprehensive 2026 Guide
An automated security assessment might tell you that a control exists, but it cannot tell you if that control will actually hold under the pressure…
Pen Test Report for Client Assurance: A Strategic Guide for 2026
Pen Test Report for Client Assurance: A Strategic Guide for 2026
What if the document you fear sharing most became your strongest asset for winning high-value contracts? You’re likely feeling the mounting pressure…
Choosing a Penetration Testing Provider UK: The 2026 Strategic Selection Guide
Choosing a Penetration Testing Provider UK: The 2026 Strategic Selection Guide
Why do nearly 70% of large UK businesses still face security breaches despite investing in annual audits? The reality is that compliance-driven…
Red Teaming Budget Justification: A Strategic Guide for CISOs in 2026
Red Teaming Budget Justification: A Strategic Guide for CISOs in 2026
Your multi-million-pound security stack might look perfect on a dashboard, but does it actually hold up when a human adversary targets your specific…

Get in touch with us

We respond within 24 hours

Got a question or ready to start a project? Reach out using the form or send us an email — we’ll get back to you within one business day.

4.9 out of 5 stars from 47 reviews
Rated 4.7 out of 5

Serving DC, Maryland, and Virginia with honest, convenient, and stress-free car rentals.

Let’s Connect!
Need help? Our team is here to support renters, hosts, and partners. Get in touch today!