OnSecurity

onsecurity.co.uk

London, England, United Kingdom

51-200 employees

LinkedIn Profile

About OnSecurity

continuous assessment, vulnerability detection, it security reporting, web security, penetration testing, compliance testing, threat & attack intelligence, red teaming, social engineering, aiaugmented pentesting, expert validation, retesting, phishing simulation, vulnerability management, cloud security testing, manual testing, consulting, automated vulnerability detection, security best practices, security protocols

OnSecurity's Tech Stack

Decision Makers at OnSecurity

4 contacts

Calum Boal

Head of Security Engineering

c***@onsecurity.io Sign up to view

Mike Oram

VP of Engineering

m***@onsecurity.io Sign up to view

Tom Lindley

Chief Technology Officer

t***@onsecurity.co.uk Sign up to view

Dan Roach

Head of Growth

d***@onsecurity.co.uk Sign up to view

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16 technologies detected · 4 decision makers · Emails available

Sales Outreach Angle

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OnSecurity's Position in the StackWho Database

• OnSecurity is 1 of 4,889 computer & network security companies tracked in StackWho.
• 4,875 computer & network security companies in our database have verified decision-maker emails (100% of the cohort).
• 47,721 companies in England are in the StackWho database.
• 484 computer & network security companies are in the 51-200 employee range (same size as OnSecurity).

Technology detection from public web signals. Decision-maker contacts compiled from LinkedIn public profiles, company filings, and verified outbound testing. Methodology & sources · Updated August 2026.

Frequently Asked Questions

What technology does OnSecurity use?

OnSecurity uses Cloudflare DNS, Gmail, Google Apps, Amazon AWS, Amazon SES, Leadfeeder, and 10 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at OnSecurity?

StackWho has verified email addresses for 4 decision makers at OnSecurity. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach OnSecurity directly for sales, recruiting, or partnerships.

What industry is OnSecurity in?

OnSecurity operates in the computer & network security industry, headquartered in London, England, United Kingdom. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export OnSecurity's contact data?

Yes. StackWho Pro members can export decision maker contact data for OnSecurity and similar companies to CSV. Use the export feature to build targeted prospect lists segmented by technology stack, industry, or location.