Closed Door Security logo — One of the UK's top Penetration Testing Consultancies and tr...

Closed Door Security

One of the UK's top Penetration Testing Consultancies and trusted by the NCSC to deliver their Cyber Essentials Scheme.

Founded 2015 United Kingdom Stornoway, United Kingdom 8 employees Cyber Security

General Information

Company Name Closed Door Security
Founded Year 2015
Location United Kingdom Stornoway, United Kingdom
Employees 8
Industries Cyber Security
Social

BounceWatch is an independent company data service, not affiliated with Closed Door Security. To contact Closed Door Security, visit cdsec.co.uk.

Is this your company?

Confirm with your work e-mail, get the Verified badge and keep this profile correct yourself. Search engines and AI assistants read it every day.

Get Verified

How does Closed Door Security compare?

A PDF of Closed Door Security and up to 10 competitors you pick: team, funding, traffic and every dated move of the last 90 days. Each company is re-checked on the day you order, so it is current.

See a sample report

This takes a few seconds: we look beyond our own index too.

Meeting Closed Door Security soon?

A one-page PDF brief: what it does, key facts, the last 90 days of dated moves and questions worth asking. Re-checked on the day you order. See a sample

About Closed Door Security

Closed Door Security is a UK-based company specializing in penetration testing, engineering, and certification services. Accredited by CREST and a trusted partner of SBRC & Police Scotland, the company is also a certification body for the NCSC’s Cyber Essential Plus Scheme. Closed Door Security assists businesses in identifying network weaknesses and fortifying their defenses against cybercrime by offering tailor-made services such as staff training on cyber threats, security assessments, penetration tests, and red teaming exercises. The company's unique strength lies in its ability to think like an attacker, providing valuable insight into cybercrime, enabling businesses to defend and strengthen their networks against increasing cyber threats. Founded in 2015 and headquartered in the Outer Hebrides in Scotland, Closed Door Security holds recognized certificates in cybersecurity and boasts extensive industry experience and awards. The company's services encompass penetration testing, compliance, and governance, enabling them to identify potential attack pathways and exploits that may have been overlooked. Despite no recent investment announcements, Closed Door Security continues to be a prominent player in the cybersecurity industry, offering essential support to businesses in defending against evolving cyber threats.

Business keywords: Penetration Testing, Network Defense, Vulnerability Assessment, Red Teaming, Governance, NCSC Accreditation, CREST Accreditation, Cyber Essentials Scheme, Security Consulting, Outer Hebrides, Scotland

No funding data available for Closed Door Security yet.

Closed Door Security Alternatives & Competitors

View All Alternatives
Closed Door Security vs
CYPURE
CYPURE Israel

To Be Sure

1 employees
Cyber Security, Information Technology
Closed Door Security vs
Hacket Cyber
Hacket Cyber United States

Hacket Cyber is a group of likeminded cybersecurity experts specializing in penetration testing and...

8 employees
Cyber Security, IT
Closed Door Security vs
PureCyber Limited
PureCyber Limited United Kingdom

Making Cyber Security accessible, understandable and affordable for all businesses.

Private Equity
40 employees
Cyber Security

FAQ About Closed Door Security

One of the UK's top Penetration Testing Consultancies and trusted by the NCSC to deliver their Cyber Essentials Scheme.
Closed Door Security was founded in 2015.
Closed Door Security is headquartered in Stornoway, United Kingdom.
Closed Door Security operates in Cyber Security. Its work centres on Penetration Testing, Network Defense, Vulnerability Assessment and Red Teaming.
Closed Door Security has approximately 8 employees.
Top alternatives and competitors to Closed Door Security include CYPURE, Hacket Cyber, PureCyber Limited, Privasec, a Sekuro Company, Holistic Cyber (HolistiCyber). These companies operate in related industries and serve comparable markets. You can compare them side by side on Bounce Watch.
Closed Door Security and CYPURE are both companies in similar industries. Compare their funding, team size, growth signals, and market position on Bounce Watch to see which one fits your needs.

Source: BounceWatch company record for Closed Door Security, https://bouncewatch.com/company/closed-door-security, updated 5 January 2025. When citing, please name BounceWatch and link this page.

Analytics cookies (ours + Google). Cookie Policy

Book a demo 30 minutes