How many email patterns does DEFION Security NL use?

DEFION Security NL uses 4 known email patterns.

What domain does DEFION Security NL use for work emails?

DEFION Security NL uses computest.nl for work email addresses.

Most Common Email Formats at DEFION Security NL

DEFION Security NL's most common email format is FLast@computest.nl (ex. JDoe@computest.nl), used for 64% of computest.nl addresses. DEFION Security NL uses 5 email patterns across 2 domains: computest.nl and defion.security. Percentages are the share of addresses within each domain.

@computest.nl

4 patterns

Format	Example	Share of computest.nl
FLast@computest.nlMost common	JDoe@computest.nl	64%
First@computest.nl	John@computest.nl	16%
FMiddleLast@computest.nl	JMichaelDoe@computest.nl	16%
FirstLast@computest.nl	JohnDoe@computest.nl	4%

@defion.security

1 pattern

Format	Example	Share of defion.security
FLast@defion.securityMost common	JDoe@defion.security	100%

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Frequently Asked Questions

What does DEFION Security NL do?

DEFION Security NL was founded in 1997 and operates in the Computer and Network Security industry, alongside similar companies like Carbon Black, Symantec and CrowdStrike. You can visit defion.security. Explore DEFION Security NL's company overview page for more information.

What is DEFION Security NL's email address format?

DEFION Security NL's email format typically follows the pattern of FLast@computest.nl; this email format is used 64% of the time. Other contacts within LeadIQ's database had email formats such as First@computest.nl and FMiddleLast@computest.nl. Looking for more contact data? Unlock accurate emails and phone numbers from millions of profiles verified in real-time.

How many employees does DEFION Security NL have currently?

DEFION Security NL has approximately 93 employees as of October 2026. Key team members to contact include Chief Executive Officer: H. R., Cfo Defion Security: T. H. and Cio: J. N. For more team information and contact data, explore DEFION Security NL's employee directory with LeadIQ.

DEFION Security NL Email Format

Computer and Network SecurityNetherlands51-200 Employees

DEFION Security NL is an independent cybersecurity provider offering end-to-end services to help organizations manage cyber risk. It uses an Active Defense approach that integrates prevention, detection, and response into a single security strategy. Beyond technical work, it provides executive-level guidance to align cybersecurity with business priorities and support informed investment decisions, while helping clients meet complex regulations such as NIS2, DORA, and CRA. 

The company is based in the Netherlands with additional offices in Spain and employs more than 100 specialists. DEFION Research Labs conducts vulnerability discovery, analyzes emerging threats, and collaborates with public partners to advance security and societal outcomes. In March 2026, the firm announced the launch of managed detection and response services for SURF, with rollout underway alongside partner DTX.

Most common format

FLast@computest.nl

Example: JDoe@computest.nl

5 patterns across 2 domains. See all formats

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Most Common Email Formats at DEFION Security NL

@computest.nl

@defion.security

Need a specific person's email?

Frequently Asked Questions

What does DEFION Security NL do?

What is DEFION Security NL's email address format?

How many employees does DEFION Security NL have currently?

DEFION Security NL Email Format

Ready to create more pipeline?

Everything for prospecting,in one platform.

What you can expect from LeadIQ:

Ready to create more pipeline?

Everything for prospecting,
in one platform.