NexaSecure — Cyber security for growing organisations
We protect small and medium organisations from the threats people don't hear about. Founded by security and product leaders across the Netherlands and the UK, NexaSecure combines hands-on technical expertise, regulatory know-how and automation to secure cloud infrastructure, supply chains and customer data.
Our mission
We exist to make robust cyber security accessible to small and medium organisations. Many SMEs are high-value targets but lack the budget or expertise to build and maintain effective security programs. NexaSecure delivers pragmatic assessments, tailored remediation and ongoing support so companies can operate with confidence.
Our services cover compliance, security frameworks (e.g. ISO/IEC, NIST), cloud security (AWS, Azure, GCP), threat modelling, supply-chain assurance and penetration testing. We combine expert-led assessments with careful automation to accelerate remediation while preserving governance and safety.
- Years of combined experience
- 20+
- Security tools & playbooks
- 12+
- Research & internal audits
- 25+
Our values
Security is practical. We focus on measurable risk reduction, responsible automation and long-term resilience for our clients — not buzzwords.
- Protect the unseen
- We prioritise the systems and teams that too often go unprotected — practical, high-impact work for SMEs.
- Practical remediation
- Every finding comes with a clear, tested remediation plan — and where possible we automate fixes to reduce time-to-remediate.
- Framework-first
- We align recommendations with recognised frameworks (ISO, NIST, CIS) so you get compliant, repeatable security programs.
- Client-first
- We partner with engineering and operations teams to deliver solutions that fit existing workflows and constraints.
- Responsible automation
- We use automation to accelerate remediation, not replace human oversight — governance and safety are always built in.
- Continuous learning
- We iterate on tools, playbooks and training so clients improve security posture over time, not just for a single report.
Founders
A cross-border team combining product, engineering and hands-on security experience to protect practical businesses.
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Kyle Simmons
Founder & CEO — UK
Founder with deep experience in cloud security strategy and product-led security services. Kyle sets company vision and builds partnerships that scale impact for SMEs.
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Mark Hooijberg
Co-Founder & CTO
Engineering and security lead. Mark focuses on secure architecture, automation and building the engineering capabilities that deliver safe, repeatable remediation at scale.
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Demmy Adeyemo
Co-Founder & CCO — UK
Demmy Adeyemo is a seasoned cyber security leader with over a decade of experience helping organizations protect their most valuable assets. Cloud security consultant specialising in risk assessments, compliance and supply-chain assurance. Demmy leads client engagements and ensures technical recommendations are practical and effective.
