How this list is made

Listings come from the Assurix Trustmark Directory, as at 14/11/2026. Assurix sets each provider’s status. Towns, sectors, certificates, founding year and staff numbers are what the provider lists. Providers working with Assurix pay a subscription. None of them can change a result, and an Assurix assessor signs off every Trustmark.

Grouped by status, in alphabetical order within each, so every Assurix Trusted MSP is shown equally. Reviews and payments play no part in the order. Assurix Trusted and On the Journey providers are Assurix customers whose status Assurix checks, which is why they come first. Committed providers have signed up with a start date booked.

Assurix Trusted MSP
Independently assessed by Assurix on 59 controls across security and service. It passes all of them, with live evidence from its own tools. A failure left unfixed for 30 days suspends the Trustmark publicly.
On the Journey
This provider is on the journey to becoming an Assurix Trusted MSP. It has connected its tools, and Assurix is collecting evidence against the 59 controls. It doesn’t hold the Trustmark yet.
Committed
Signed up to work towards the Assurix Trustmark, with a start date booked. It doesn’t hold the Trustmark yet.
Not yet verified
Listed, but Assurix hasn’t assessed it. Ask what evidence it can show you.

The 59 controls are 40 security controls aligned to NCSC CAF 4.0 and 19 operational controls built for MSPs.

Before you sign with any provider, read the NCSC’s guidance on choosing a managed service provider, and check a Cyber Essentials certificate on the IASME certificate search.

How the Directory works

54 providers Not yet verified

Choosing an IT provider in Hertfordshire

Check, so you don’t switch again in a year.

Nobody has more access to your business than your IT provider, so check its security before you sign.

29 of the 56 list Cyber Essentials and 15 list ISO 27001. A certificate proves a date. Ask what has been checked since, and when.

The sectors listed most often here are Legal, Financial Services and Healthcare. If yours is one of them, ask for a reference from a client like you.

How to check an IT provider before you sign

Hertfordshire in numbers

IT providers listed
56
Working with Assurix
2 Committed
Nearest Assurix Trusted MSP
Astec IT, about 18 miles away
Listing Cyber Essentials
29 of 56 (52%), 15 of them Plus
Listing ISO 27001
15 of 56 (27%)
Sectors listed most
Legal (13), Financial Services (12), Healthcare (12)
Services listed most, after IT support
Cyber Security (48), Cloud & Microsoft 365 (47), IT Consultancy & Strategy (39)
Typical time trading
18 years (median)

Counts from the Directory as at 14/11/2026. Certificates and sectors are what each provider lists.

Questions about IT providers in Hertfordshire

Which IT providers in Hertfordshire are independently assessed by Assurix?

None in Hertfordshire holds the Assurix Trustmark yet. The nearest Assurix Trusted MSP is Astec IT in London, about 18 miles from the middle of Hertfordshire.

How many IT providers are listed in Hertfordshire?

56 as at 14/11/2026: 2 Committed and 54 Not yet verified.

What does Not yet verified mean?

Not yet verified means the provider is listed, but Assurix hasn’t assessed it. It doesn’t mean they do a poor job. 54 of the 56 here are Not yet verified. Ask what evidence they can show you.

Which sectors do IT providers in Hertfordshire serve?

The sectors listed most are Legal (13), Financial Services (12) and Healthcare (12). The sector filter in the Directory search narrows the list.

How do I check an IT provider in Hertfordshire?

Check each provider’s status in the Trustmark Directory. An Assurix Trusted MSP can send you its Trust Portal, which shows what is checked and today’s result. Ask anyone else what evidence they can show you today.

Will an Assurix Trusted MSP cost more?

Prices vary. Ask each provider what evidence it can show you, then compare quotes against the same standard.

Want help choosing?

Tell us what you need. We’ll suggest providers working with Assurix that fit, Assurix Trusted MSPs first, and introduce you. Free, and no obligation.

Towns and counties in Hertfordshire

Are you an MSP? See how to earn the Assurix Trustmark