C4Security is an independent firm. It is not owned by TRADhEiR and is not part of TRADhEiR. We list it because it does licences, permissions and staying legal, and we say openly where our relationship with it stands.
Where we stand with them
Talking to themWe are in discussion with this firm. Nothing is signed yet, and we will say so if you ask about them.
Met at FinTech Connect, capability summary received.
The facts, as they publish them
- Regulator or licence
- Certification consultancy
- Head office
- United Kingdom
- Where they cover
- International
- Reach
- ISO, PCI, SOC, DORA
- Trading since
- not stated
- How they work
- Audit cycle
- Smallest job they take
- from around £6,000
What they actually do
- ISO 27001, 27701, 22301, 20000-1 and 9001
- ISO 42001 for AI management systems
- PCI DSS and SOC 2 readiness
- GDPR audit and risk assessment
- DORA operational resilience
- Penetration testing and security training
Where their work sits
Their own description of how their work splits.
What you should know
Met at FinTech Connect. Covers the certification stack that payment and custody partners increasingly require before they will contract, which makes it a dependency for several other practices rather than a standalone service.
Before you speak to them
Three things worth checking yourself.
Check the regulator or licence number above on the regulator's own register, not on the firm's website. Ask for the total cost including the second year, not just the first. And ask who will actually be doing the work, because the person who sells it is often not the person who does it.
What they help with
How an introduction works
Nothing to ask. The firm you choose pays us ten percent.
Tell us what you are trying to do and we will say whether C4Security is the right firm for it or whether somebody else on our list fits better. We are not paid more for sending you to one firm over another, and a firm that pays us and then disappoints you costs us far more than it earns us.
This page is a directory listing. It is not immigration, legal, tax or financial advice, and nothing on it is a recommendation. TRADhEiR makes introductions to independent firms. We are not a firm of solicitors, we are not registered with the Immigration Advice Authority, and we hold no financial services permissions. Firm details are transcribed from each firm's own public material and should be checked with the firm before you rely on them. Last reviewed 2026-09-17. This site uses cookieless analytics that counts visits but does not identify you or follow you anywhere else.