Discover top IT services companies in London that have partnered with leading brands like McDonald's and Coca-Cola. DesignRush connects over 1M monthly visitors with trusted agencies, facilitating over 100,000 successful client-agency matches each month. Compare providers by industry expertise, client type, budget, reviews, team size, and portfolio.

Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

United Kingdom × London × Finance × $50,000 & Up ×Clear Filters
  • Itransition

    VerifiedVerified by the DesignRush team for authenticity and credibility.

    Turning Software Ideas Into Reality

    Itransition consistently offers end-to-end IT Services, guiding organizations through complex digital transformations. Our expertise spans enterprise-grade software, robust integrations, and advanced analytics. Dedication to emerging technologies keeps our solutions ahead of the curve...

    Top Services:

    • Software Development
    • IT Services
    • Business Consulting
    • eCommerce Development
    • Cloud Consulting
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    8 Projects Listed

    Itransition Services

    • Software Development
    • IT Services
    • Business Consulting
    • eCommerce Development
    • Cloud Consulting
    • Big Data Analytics
    • VR/AR
    • Mobile App Development
    • Web Design
    • ERP Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • PayPal
    • Adidas
    • Expedia
    • Ebay
    • Philips
    • PepsiCo
    • Xerox
    • LISI AEROSPACE
    • HAI Group
    • Anybill
    Data sourced from the agency's DesignRush profile

    Itransition Reviews & Testimonials

    • Robert Hager
      Robert Hager Chief Business Analyst at Simpson Strong-Tie
      5.0★

      Software Development Review from Robert Hager

      Itransition carried out the entire software testing process without a single delay. Despite the remote cooperation, the company ensured ceaseless communication, which indicates a high level of the team’s professionalism and organization.

    • Jimmy Carlisle
      Jimmy Carlisle Director of Audit at Dixon Hughes Goodman LLP
      5.0★

      Software Development Review from Jimmy Carlisle

      We needed an in-depth upgrade of the legacy auditing system. We chose Itransition because they swiftly responded to our project requirements and had relevant expertise. The team helped us decide on the solution’s tech stack and designed the new architecture, migrated legacy data, developed new features, and customized the software with extensions. We got a powerful and user-friendly auditing system and were very impressed with the Itransition’s dedication and attention to detail.

    • Shoshana Parker
      Shoshana Parker Senior Computational Biologist at SBH Health System
      5.0★

      Software Development Review from Shoshana Parker

      We enjoyed working with Itransition. We needed a solution for transferring health records from our EHR into the data warehouse without losses. We chose Itransition for their experience, portfolio, and past clients’ references, and the team fully met our expectations. They built a custom ETL tool that increased our visibility into clinical data and helped us spot inefficiencies in patient workflows. Needless to say, they also delivered it on time and budget.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Smartym Pro is a full-cycle development company specialized in mobile application and enterprise web development. Company has strong development culture and focuses on innovative solutions, using cutting edge technologies and frameworks. Smartym Pro is located in Eastern Europe and consists primarily of...

    Top Services:

    • Software Development
    • Mobile App Development
    • Staff Augmentation
    • Blockchain
    • IT Services
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    50 - 99
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    9 Projects Listed
  • AI led Digital Engineering for the Connected Enterprise.

    Ignitho is acclaimed as one of the premier Software Development Companies in New York, USA. We specialize in delivering high-quality software development services to enterprises, employing a Frugal Innovation methodology that emphasizes achieving more while optimizing resources. Our approach prioritizes...

    Top Services:

    • Big Data Analytics
    • IT Services
    • Business Consulting
    • AI Development
    • DevOps Consulting
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    3 Projects Listed
  • A global AI-first software firm focused on transforming tech challenges into business successes

    Sombra is a global AI-first software development and AI consulting partner. With 400+ experts across the US, Europe, Latin America, Canada, India, and the Middle East, we design, build, and deliver IT solutions in AI, financial services, healthcare, e-commerce, energy, logistics, and...

    Top Services:

    • AI Development
    • Software Development
    • Mobile App Development
    • Cloud Consulting
    • Big Data Analytics
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    7 Projects Listed
  • Senior embedded Python teams for data, AI & SaaS

    Python-first staff augmentation for SaaS, data engineering & AI/ML. Senior embedded engineers, CVs in 24-48 hours. No freelancers...

    Top Services:

    • Software Development
    • Staff Augmentation
    • Mobile App Development
    • Web Development
    • Big Data Analytics
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    7 Projects Listed
  • Globally Recognized Digital and Engineering Solutions Partner.

    Named Best AI Company and Software Development Company by The Netty Awards, Opinov8 is a global technology firm with development hubs across the United States, Europe, and Egypt...

    Top Services:

    • Software Development
    • Mobile App Development
    • UI/UX Design
    • Web Development
    • Big Data Analytics
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    250 - 499
    Average Hourly Rate
    $42/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    3 Projects Listed

Why companies trust DesignRush

Every agency is independently vetted before it can be listed or ranked

1

Identity Check

We verify businesses and reviewer LinkedIn profiles for integrity.

Agencies vetted
129,759+
2

Portfolio Review

We review agency work, case studies, and results to confirm skill.

Applicants rejected
47%
3

Ongoing Audit

We monitor listings regularly; outdated agencies are removed.

Agencies verified
6

Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.

See how rankings and monetization work.

Frequently Asked Questions

What types of IT support can London IT support companies provide day to day?

London IT support companies handle the daily tech issues that keep a business running smoothly. Their day-to-day support services include: 

  • Help desk support 
  • Device setup and troubleshooting 
  • Network monitoring 
  • Software updates 
  • Security monitoring 
  • Email and account management 
  • Backup checks 
  • Remote and on-site technical support 

How do IT services companies in London improve security and reduce risk?

IT services companies in London improve security by tightening your systems, reducing weaknesses, and watching for threats in real time. They also put controls and backups in place so issues don’t turn into major losses.  

  1. Continuous monitoring 
  2. Patch and update management 
  3. Firewall and antivirus management 
  4. Access control and permissions checks 
  5. Data backup and recovery planning 
  6. Employee security training 
  7. Incident response support 

What certifications should an IT services company in London have for compliance?

An IT services company in London should hold certifications that prove it meets strict security and compliance standards: 

  • ISO 27001 shows it manages information security correctly 
  • Cyber Essentials or Cyber Essentials Plus confirms that it protects against common cyber threats 
  • ISO 9001 helps prove quality management 

Some companies also carry sector-specific compliance, like GDPR readiness or PCI DSS, if they handle payments. 

How fast can a London IT support company respond to outages or incidents?

Most London IT support companies respond within minutes for critical outages. Many offer guaranteed response times under an SLA, often 15 to 60 minutes depending on the plan. 

High-priority incidents usually get immediate remote attention. On-site support can arrive the same day when needed. The exact speed depends on your service level agreement.

What is included in a standard IT support package from a London provider?

A standard IT support package from a London provider covers the core services a business needs to stay operational. 

  • Help desk support 
  • Device setup and troubleshooting 
  • Network monitoring 
  • Patch and update management 
  • Security tools management 
  • Backup monitoring 
  • User and email management 
  • Remote and on-site supportÂ