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CovertSwarm

Subscription-based offensive cybersecurity firm delivering continuous cyber attack services with CREST STAR and CBEST accreditations from its London headquarters.

Featured in: Best CREST Pen Testing Companies

Founded
2020
Team Size
51-200
Geography
Global
Last verified: Apr 2026

Key facts

  • Founded in 2020.
  • Headquartered in London, United Kingdom.
  • Team of 51-200 security professionals.
  • Holds CREST, CBEST, and STAR accreditation.
  • Delivers 8 penetration testing services.
  • Operates globally, with delivery across the UK, Europe, and North America.
  • Specialises in Adversary Simulation, Cloud-Native Security, and Payment Security.
  • Compliance expertise across ISO 27001, PCI DSS, GDPR, DORA, and Cyber Essentials.

About

CovertSwarm is a modern offensive cybersecurity firm founded in 2020 and headquartered in London, with an additional office in Wilmington, Delaware. The company has pioneered a subscription-based continuous cyber attack model that represents a significant departure from traditional point-in-time penetration testing. Rather than conducting annual or quarterly assessments, CovertSwarm delivers relentless, full-spectrum assaults across an organisation's digital, physical, and social attack surfaces on a monthly subscription basis.

Best For

Mid-MarketEnterpriseStartup
Featured alternativeA paid placement, not a ranking
SECFORCE logo

SECFORCE

CBEST-approved, threat-led red teaming for UK financial services.

  • CBEST-approved provider staffed by certified CCRTM and CCRTS consultants.
  • Has delivered over 15 CBEST engagements for UK high street banks, major financial institutions, and other regulated entities.
CRESTCBESTSTARISO 27001
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Methodologies

OWASPCRESTCBESTSTARTIBER-EU

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