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12 Years
experience
Emergency
services
Your Trusted IT Support & Cyber Security Partner in Doncaster
Since 2014, Twenty Four IT Services has been dedicated to meeting the strategic infrastructure needs of businesses across the UK and internationally. Founded by Tony Houlihan and joined by Mike Smith in 2017, we prioritise organic growth through exceptional service and technical expertise. Our team of 50+ professionals delivers tailored IT support and managed services, working closely with clients to understand their unique requirements. With offices in Doncaster and Bracknell, alongside a global support team in Vadodara, we provide 24/7 IT solutions that align with evolving business demands.

Our focus remains on simplifying technology for clients, enabling them to concentrate on core operations while we handle their IT infrastructure. We specialise in managed security services, cloud solutions, and cyber security, ensuring robust protection against modern digital threats.
Services
IT Managed Services Managed Security Services Cloud Services Cyber Security Services IT Helpdesk Outsourcing Cloud Desktop Hosting Network Audits 24/7 Managed Cyber Security Vulnerability Assessment Penetration Testing
Details
  • Year established: 2014
Highlights and features
  • We offer 24/7 managed cyber security services with global support coverage
  • Our team of 50+ IT professionals specialises in tailored infrastructure solutions
  • We operate from strategic UK locations in Doncaster and Bracknell
  • We provide industry-specific IT solutions for legal and accounting firms
  • Our services extend to 16 international markets with local expertise
Services
Managed IT Security Services
Our comprehensive security solutions provide continuous protection against cyber threats through advanced monitoring and proactive threat mitigation. We implement enterprise-grade firewalls, endpoint protection, and real-time threat detection systems. Our security operations centre ensures 24/7 vigilance while maintaining compliance with industry standards.
Cloud Services
We deliver scalable cloud infrastructure solutions including Microsoft Azure integration, hosted desktop environments, and secure data storage. Our cloud migration services ensure seamless transition while maintaining data integrity. Backed by robust security protocols, our cloud offerings provide flexible access to business-critical applications and information.
Cyber Security Services
Our cyber security suite includes vulnerability assessments, penetration testing, and ransomware prevention strategies. We implement Cyber Essentials certification pathways and dark web monitoring to safeguard sensitive data. Regular security audits ensure ongoing compliance with evolving threat landscapes and regulatory requirements.
IT Managed Services
We provide end-to-end IT infrastructure management covering network installations, system maintenance, and service desk support. Our proactive monitoring ensures optimal system performance while minimising downtime. Tailored service level agreements guarantee responsive support aligned with business operations.
Network Audits
Our comprehensive network assessments evaluate system performance, security vulnerabilities, and scalability potential. Using advanced diagnostic tools, we identify bottlenecks and security gaps while providing actionable recommendations. Regular audits ensure IT infrastructure evolves alongside business growth requirements.
People
Mike Smith
Director
With economics and psychology qualifications, Mike transitioned from finance to IT leadership, driving TwentyFour IT's strategic growth since 2017 through client-focused innovation.
Tony Houlihan
Chief Technology Officer
Leading our technical team, Tony ensures SMEs access cutting-edge technology solutions, leveraging 15+ years of IT infrastructure expertise to deliver reliable managed services.
Questions
What IT services do you specialise in?
We specialise in managed IT services, cyber security solutions, cloud computing, and network infrastructure management tailored to business requirements.
Do you offer 24/7 IT support?
Yes, our 24/7 managed services include continuous monitoring, emergency response, and global support coverage across multiple time zones.
Which industries do you serve?
We provide sector-specific solutions for legal firms, accounting businesses, energy companies, and logistics operations with tailored IT strategies.
Do you work internationally?
We deliver IT services across the UK and support clients in 16 international markets through our global infrastructure and local expertise.