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Northdoor is an award-winning, results-focused IT consultancy firm in London that helps organisations drive value from their business assets. With over 30 years of experience serving blue-chip companies, Northdoor holds multiple accreditations from the largest of technology vendors including Microsoft and IBM. We offer design, implementation and support services via our own internal technology practices which include Data & Analytics, Cloud Computing, Security, BI & AI, and Applications.

Whether you’re looking to secure and optimise your operations, refresh your technology platforms, gain new competitive insights or deploy AI solutions, Northdoor can help. 

Northdoor offers business-focused technology solutions that deliver lasting return on investment.

Northdoor serves blue-chip clients in all industries with focused solutions for Insurance, Financial Services and Banking, Public Sector, Charity and Not for Profit, Retail, and Media.

Main office address

3rd Floor,
Bentima House
168-172 Old Street
United Kingdom

Telephone number

020 7448 8500


Key Products / Services / Sectors (USPs)

Defend your critical data and systems at every level with Northdoor’s cyber security as a service. As a trusted MSSP, Northdoor’s cyber security managed services works across four domains: core, inner, edge and outer.

The Core

At your organisation’s core, we design, build and run a secure infrastructure wherever you choose to locate it: on-premises, in the cloud, or a hybrid of the two. We design, set up and manage the appropriate governance and compliance controls around these systems and the core data they hold. We deploy automated security controls that ensure users can access only the data appropriate to their role. We provide your software developers with securely anonymised data so they can build and test applications without putting sensitive data at risk.

The Inner Layer

In the inner layer, we maintain continuous intelligent monitoring of all users and devices, whatever their location, and we run sophisticated protection for inbound and outbound email that includes real-time alerts to users. Bringing together security data from all your systems, we detect and respond to incidents and provide a single, clear view of cyber security on your internal network.

The Edge

At the edge of your organisation, where your internal systems meet the outside world, we continuously scan perimeters and probe for vulnerabilities. We keep our finger on the pulse so that we can defend you against emerging threats, and we provide penetration testing as a service to help you benchmark your security.

The Outer Layer

At Northdoor, we go one step further: moving outside your organisation to understand how your supply chain partners and customers may be exposing you to cyber risk.Our solution makes it fast and easy to carry out due diligence on suppliers, and gives you a real-time view of the extended web of risk that spreads out from your organisation through your partners, their partners, and beyond. 


Backup and disaster recovery

Backup solutions

Incident response

Disaster recovery solutions

Disaster Recovery as a Service (DRaaS)

Penetration testing

Vulnerability scanning

Automated test tools

Web app PEN tests

Mobile app/IoT PEN tests

Social engineering PEN tests

Red Teams

Cybersecurity awareness training programs

On-site training programs

Online training

Interactive training videos


Automated phishing simulations

Cybersecurity consultancy

Compliance assistance

Security assessment, policy help, strategic advise

Information risk assessment

Privacy Impact Assessment services

Security architecture

Digital forensics and investigation services

Security and data protection audit

Network security

Data Loss Prevention (DLP)

Distributed denial of service (DDoS) prevention

Email security

Firewalls and web access firewalls (WAF)

Network segmentation

Security information and event management (SIEM)

Other intrusion detection (Machine Learning / AI based)

Endpoint security solutions

Mobile security


IoT security

Endpoint Detection and Response (EDR)

Network infrastructure controls, e.g. Firewalls, switches, security policy enforcement


URL filters

Security email gateway


Print management and security

Threat intelligence monitoring and detection

Consultancy and advice

User and Entity Behavior Analytics (UEBA)

Security information and event management (SIEM)

Network Traffic Analysis Framework

Web Proxy

Cybersecurity Platform

Phishing detection

Fraud detection

Rogue or Fake Mobile App Detection

Surface, “Deep” and “Dark” Web Monitoring

Social media monitoring

Brand Monitoring

Managed security services (MSSP)

Protective monitoring

Incident response

Vulnerability management

Threat management

Telco security

Security help desk and support

Staff training

Identity and access management

Identity provisioning (IDP)

Data verification

Data orchestration services

Identity hub

Authentication (credential) of citizens

Authentication (credential) of employees and other internal persons

Anti-fraud services, e.g. behavioural monitoring

Attribute provisioning and verification

Identity networks

Identity apps

Privacy and consent management

Privileged access management (PAM)


"The net impact of working with Northdoor will be better service reliability on UK railways, saving time and money for both RDG and its members, and improving freight and passenger rail services.”

Alain Cain, Head of Information Security Rail Delivery Group

"Whether you want to improve security for on-premises databases or deploy a full hybrid-cloud cyber security environment, Northdoor combines technical expertise with business experience."

Spokesperson An International Health Insurance Company

"I have recommended Northdoor to other colleagues and partners in the region and by virtue of the fact that many of them are now sharing the infrastructure we have put in place."

James Jarvis Assistant Director of Business Intelligence at Maidstone and Tunbridge Wells NHS Trust.






Hewlett Packard


Bramble Hub


VM Ware



Main point of contact

Name: AJ Thompson


Phone: 020 74488500