About Us

An IT company that builds its own tools

CODE AND SYSTEMS LTD is a UK IT consultancy based in Essex, serving businesses across London and nationwide. We run day-to-day IT for our clients — and we built GateCore, our own security platform, because the tools we were asked to install never quite fit the businesses we support.

"Technology should work for you — not the other way around."The sentence every engagement starts from.
CODE AND SYSTEMS LTDPrivate limited company · England & Wales
Active
Company number15973638
VAT registrationGB 516 9150 89
IncorporatedSeptember 2024
Registered inEssex, United Kingdom
Trustpilot★★★★★ 4.3 Excellent
15+years hands-on
5GateCore products
UKremote & on-site
Our story

From support desk to our own platform

We started where most IT companies start: fixing things. Servers that fell over, mailboxes that wouldn't migrate, firewalls nobody had touched in years. Fifteen years of that teaches you what actually breaks in a small business — and it's rarely what the vendor brochures say.

Every client was being sold a stack of separate tools — one for MFA, one for DNS filtering, one for backup, one for remote access — each with its own console, its own invoice and its own gaps. So we built one.

GateCore runs on our own clients' machines first. Every feature exists because a real business needed it — and we support it ourselves, because we wrote it.

SEP 2024

Company founded

CODE AND SYSTEMS LTD incorporated in Essex. Managed IT support, Microsoft 365 and network work for businesses in London and Essex.

2025

Growing the client base

Cloud migrations, Hyper-V and VMware infrastructure, FortiGate deployments — the problems that shaped what GateCore had to do.

M365Hyper-VFortiGate
2026

GateCore platform launched

Our own multi-tenant security platform: MFA, DNS Firewall, User Activity, Remote Access and Backup — one panel, built in C# / .NET.

MFAFirewallUser ActivityRemote AccessBackup
AUG 2026

GateCore Authenticator in the stores

Our authenticator app published on the App Store and Google Play — number-match sign-in approval for GateCore client machines, plus standard one-time codes.

App StoreGoogle Play
Our values

How CODE AND SYSTEMS works

Tailored to your business

No off-the-shelf fixes. Every engagement starts with understanding your goals — then we build the right solution.

Proactive, not reactive

We monitor your infrastructure around the clock and fix vulnerabilities before they become outages.

A real partnership

We work as an extension of your team. Long-term client relationships speak louder than any sales pitch.

Full accountability

One point of contact. No ticket black holes. You always know who has your issue and where it stands.

Why we built GateCore

Security tools made for the businesses we actually support

Enterprise security products are priced and designed for enterprises. Small businesses got the leftovers: consumer tools, or enterprise tools they couldn't afford to configure. GateCore is our answer — one platform, flat and per-user pricing, managed by the same engineer who supports your office.

  • ✓Five products in one panel — MFA, DNS Firewall, User Activity, Remote Access, Backup
  • ✓Built in-house in C# / .NET and supported by the people who wrote it
  • ✓Used on our own clients' machines before anyone else's
  • ✓Our own authenticator app on the App Store and Google Play
Explore the five products →
Technology expertise
Testimonials

What our clients say

★★★★★4.3 Excellent on Trustpilot ↗
★★★★★
Excellent IT Support
"CODE AND SYSTEMS team solved our ESXi and vCenter issue very quickly. Professional and reliable support!"
MO
Mohamed
Verified
★★★★★
Fast & Reliable
"Fixed our FortiGate firewall rules and reconfigured policies. Remote connection works perfectly now."
JA
James
Verified
★★★★★
Great Service!
"Exchange server issues resolved remotely and quickly. Highly recommended."
LU
Luke
Verified
★★★★★
Trusted Partner
"Helped with Hyper-V replication and prepared our systems for maintenance. Superb job."
ED
Edward
Verified
★★★★★
Highly Recommended
"Reasonable cost and they keep our systems safe. I strongly recommend CODE AND SYSTEMS LTD."
DA
Daniel
Verified

Let's work together

Book a free consultation and let's talk about how CODE AND SYSTEMS LTD can support your business.