Continuous offensive security.
Enterprise scale.
Arcseer combines AI penetration testing with the control, visibility, and assurance evidence required by regulated enterprises — built by practitioners who have been on both sides of the attack.
Available to qualifying enterprise organisations
Trusted by security teams across regulated industries
Accreditation
Active deployments in
- Financial services
- Critical national infrastructure
- Government
"Arcseer found critical exposures in our API layer within the first engagement that our previous annual test had missed entirely."Head of Application Security · UK Financial Services
Supports compliance with
- NIS2
- DORA
- ISO 27001
- PCI-DSS
- NIST
- SOC 2
Modern systems do not stand still.
Applications evolve continuously, attack surfaces expand, and new vulnerabilities emerge faster than traditional testing cycles can respond. Annual or quarterly assessments leave organisations operating on assurance that is already out of date.
Arcseer moves security assurance from periodic validation to continuous, intelligence-led assessment — so your security posture reflects your systems as they are today, not as they were three months ago.
Advanced offensive capability
delivered through AI.
At the core of Arcseer is an AI penetration testing capability designed to replicate the reasoning and adaptability of skilled human testers, then exceed it in speed, consistency, and coverage.
Everything your programme needs in one environment.
Security Assurance, Managed End-to-End
- Plan, scope, execute, and review assessments in a single environment
- Structured outputs for every stakeholder — from technical findings to executive risk summaries
- Integrate directly with Jira for remediation workflow
Continuous Visibility and Control
- Real-time view of testing coverage, findings, and remediation status
- Track what has been tested, what is at risk, and where attention is required next
Active Exposure Management
- Monitor applications for change and track remediation progress
- Prioritise effort dynamically based on exploitability and business impact
- Not severity ratings that sit in a spreadsheet
Intelligence-Led Testing Triggers
- Testing initiated by meaningful change — system evolution and new vulnerability disclosures
- Adapts to shifting threat patterns
- Not fixed schedules. Not manual requests.
Built for regulated environments.
Regulatory frameworks across the UK, EU, and US now mandate structured, evidenced security testing. Arcseer generates the assurance outputs your compliance teams, auditors, and regulators require — structured, auditable, and mapped to the frameworks that govern your organisation.
Article 21 mandates penetration testing as part of effectiveness assessment for essential and important entities across 18 sectors.
Financial entities must conduct structured penetration testing annually, with TLPT red-team exercises at least every three years.
Annex A controls A.8.8 and A.5.36 require systematic vulnerability management and regular security testing.
Requirement 11.4 mandates penetration testing of all in-scope systems at least annually and after significant changes.
The Identify and Protect functions require regular technical testing of systems and networks against known threats.
Security (CC6) and Availability trust criteria require evidence of regular vulnerability and penetration testing.
Every engagement produces structured, audit-ready reporting mapped to your relevant framework — not a raw list of CVEs.
End-to-end visibility across your security programme.
One environment. Everything in view.
Outputs are structured for two audiences — technical depth for security and engineering teams, executive summaries for risk committees and boards. Both automatically generated from the same underlying data.
Designed for complex organisations.
Arcseer is built to operate within environments where security is distributed, regulated, and business-critical — and where governance structures, risk frameworks, and compliance obligations are not optional constraints, but operational realities.
The platform aligns with existing governance structures rather than requiring them to change. Arcseer can be deployed as a standalone SaaS platform, or with a managed service wrapper for organisations that require expert oversight of the programme.
Built by pen testing practitioners.
Arcseer was founded by offensive security practitioners who have spent their careers understanding how real attacks are planned, executed, and sustained. The platform is a product of that experience — shaped by years of hands-on penetration testing in real environments. That expertise does not sit at the margins; it guides the process end to end.
We work with a number of enterprise clients under structured Proof of Value engagements before any long-term commitment — because the only way to demonstrate what continuous offensive testing actually finds is to run it against your environment.
What struck us wasn't the volume of findings — it was the quality. Arcseer identified a multi-step exploit chain across our internal infrastructure that had been invisible to our quarterly testing programme for over a year.CISO · Critical National Infrastructure
What organisations observe.
Faster identification of exploitable risk
Critical findings surfaced in days, not quarters — including in areas previously assessed as low risk.
* Replace with real data before publication
Greater coverage across application estates
Continuous testing delivers broader, deeper coverage than periodic engagements at equivalent cost.
* Replace with real data before publication
Improved alignment between security and engineering
Structured outputs integrated into engineering workflow reduce remediation lag and improve team accountability.
* Replace with real data before publication
We build with our customers.
Arcseer's capability is developed in direct response to real-world deployment — shaped by the threats our customers face, the regulatory environments they operate in, and the gaps that emerge from every engagement. New capabilities are released continuously, not in annual cycles.
Our integration roadmap is driven by customer workflow. Jira is live today. Broader ITSM, SIEM, and CI/CD integrations are in active development.
See what Arcseer finds
in your environment.
We work with enterprise security teams through a structured Proof of Value programme — a scoped engagement against your live environment, at no commitment, designed to demonstrate what continuous offensive testing finds that your current programme misses.