Leaf through the premier custom software development companies in London that customize, maintain and/or build high-quality solutions, mobile applications and more. Filter listings by reviews, pricing, team size to find the ideal team for your project requirements and budget.

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 × Legal × $25,000 - $50,000 ×Clear Filters
  • .NET, AI and Web Software Development

    Leobit is a full-cycle .NET, AI, and web application development provider for technology companies and startups primarily located in the US, EU, and the UK.Tech focus: .NET, Angular, iOS, Android, Ruby, React, PHP, and a range of technologies from Microsoft, Web, and Mobile Stacks...

    Top Services:

    • Software Development
    • Web Development
    • Mobile App Development
    • UI/UX Design
    • IT Services
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    26 Projects Listed
  • TECHNOLOGY PARTNER FOR INNOVATIVE COMPANIES

    While modern technologies change our world, we help companies with innovative technologies. From E-Commerce to Fintech, from Machine Learning Development to Blockchain - we’ve got the necessary expertise to help you deliver your product on time and within the budget...

    Top Services:

    • Software Development
    • IT Services
    • IoT
    • eCommerce Development
    • Cybersecurity
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    250 - 499
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    4 Projects Listed
  • Designing the Future, Excelling Today.

    CalypsoTech is a dynamic digital agency renowned for its specialization in developing cutting-edge web and mobile applications, custom software solutions, and proficiently managing social media presence. Through the synergy of creativity and technology, we empower businesses to flourish within the digital...

    Top Services:

    • Web Design
    • Web Development
    • WordPress Website Design
    • Mobile App Development
    • Software Development
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $90/hr
    Minimal Budget
    $25,000 - $50,000

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
129,859+
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
3

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

See how rankings and monetization work.