Infinum vs Box UK: full comparison for 2026
Quick verdict
Infinum (4.1/5) edges ahead of Box UK (3.8/5) overall. Infinum is the better choice for consumer apps where design quality matters. Box UK is the stronger option for mid-sized web and e-commerce builds. The right choice depends on your project size, budget, and required tech stack.
Infinum vs Box UK: head-to-head summary
| Criterion | Infinum | Box UK |
|---|---|---|
| Founded | 2005 | 1998 |
| HQ | Zagreb, Croatia (London office) | Cardiff, United Kingdom |
| Team size | 350–450 | 50–100 |
| Rating | 4.1 / 5 | 3.8 / 5 |
| Primary differentiator | In-house product design and mobile engineering with a strong portfolio of consumer apps | Small Welsh team with long-standing enterprise web clients |
| Pricing model | Time and materials, fixed price | Fixed price, time and materials, retainer |
| Min. engagement | Not published | Not published |
| Primary tech stack | Swift, Kotlin, Flutter | PHP, WordPress, Drupal |
| Industries served | Financial services, Media, Healthcare, Retail | Retail, Media, Manufacturing, Healthcare |
Infinum vs Box UK: overview
Infinum
Infinum was founded in Zagreb, Croatia in 2005 and employs around 400 people across Zagreb, Varaždin, Ljubljana, Podgorica, Amsterdam, New York and London. Its London office opened in 2021. The company is best known for polished mobile and web products, with design and engineering kept under one roof. Croatian rates sit below the UK but above the cheapest Eastern European options.
Box UK
Box UK was founded in Cardiff in 1998 and has a second office in London. Directories put its team at 50 to 100 people. It works on web platforms, e-commerce, user experience and managed services for clients including Jaguar Land Rover, Sodexo, the BMJ and RS Components. In June 2025 it announced a partnership with experimentation platform VWO.
Services and capabilities: Infinum vs Box UK
| Capability | Infinum | Box UK |
|---|---|---|
| Custom software development | ✓ | ✓ |
| Mobile app development | ✓ | ✗ |
| Cloud & DevOps | ✗ | ✗ |
| Data & AI | ✗ | ✗ |
| Legacy modernisation | ✗ | ✗ |
| Embedded & IoT | ✗ | ✗ |
| Dedicated team model | ✗ | ✗ |
| Fixed-price projects | ✓ | ✓ |
Tech stack comparison: Infinum vs Box UK
| Framework / platform | Infinum | Box UK |
|---|---|---|
| .NET | N/A | N/A |
| Java | N/A | N/A |
| Python | N/A | N/A |
| React | ✓ | ✓ |
| AWS | N/A | ✓ |
| Azure | N/A | N/A |
| Kubernetes | N/A | N/A |
| Embedded | N/A | N/A |
Pricing comparison: Infinum vs Box UK
| Criterion | Infinum | Box UK |
|---|---|---|
| Minimum engagement | Not published | Not published |
| Engagement models | Fixed project, Time and materials | Fixed project, Time and materials, Managed service |
| Rate transparency | Not public | Not public |
| Price tier | Mid-market | Mid-market |
Target audience comparison: Infinum vs Box UK
| Dimension | Infinum | Box UK |
|---|---|---|
| Best company size | Startup to mid-market | Startup to mid-market |
| Best industries | Financial services, Media, Healthcare | Retail, Media, Manufacturing |
| Best use cases | A bank wants a new retail banking app designed and built., A media brand needs iOS and Android apps with a shared design system. | A manufacturer needs a B2B e-commerce platform., A publisher wants a new content platform. |
| Typical project type | Fixed project | Fixed project |
Infinum vs Box UK: pros and cons
| Infinum | |
|---|---|
| + | Design and engineering work as one team, which helps consumer-facing products |
| + | EU-based delivery simplifies GDPR-related contract terms |
| + | A London office lets UK clients meet the team in person |
| - | Better suited to product builds than large enterprise back-office systems |
| - | Smaller than most nearshore vendors on this list, which limits team growth |
| Box UK | |
|---|---|
| + | Cardiff rates are lower than London consultancies |
| + | Senior people stay close to projects in a small team |
| + | Good experience with content-heavy web platforms |
| - | Small team cannot staff large programmes |
| - | No offshore option, so costs stay at UK levels |
Who should choose Infinum?
A typical fit: a bank wants a new retail banking app designed and built.
In-house product design and mobile engineering with a strong portfolio of consumer apps. Minimum engagement is not publicly disclosed. Works best with clients in Financial services, Media, Healthcare, Retail.
Who should choose Box UK?
A typical fit: a manufacturer needs a B2B e-commerce platform.
Small Welsh team with long-standing enterprise web clients. Minimum engagement is not publicly disclosed. Works best with clients in Retail, Media, Manufacturing, Healthcare.
Decision matrix: Infinum vs Box UK
| Your situation | Recommended choice |
|---|---|
| You need full-ownership delivery on a defined project scope | Infinum |
| You need a large dedicated team for an ongoing programme | Check each company's engagement model |
| Your budget is at the lower end | Compare: Infinum (Not published) vs Box UK (Not published) |
| You need specialist depth in a specific vertical | Infinum |
| You want engineers added to your own in-house team | Neither lists team extension; ask about dedicated teams |
| Your product includes hardware, firmware or connected devices | Neither; consider an embedded specialist |
Use case fit: Infinum vs Box UK
| Use case | Infinum fit | Box UK fit | Winner |
|---|---|---|---|
| A bank wants a new retail banking app designed and built. | Strong | Limited | Infinum |
| A media brand needs iOS and Android apps with a shared design system. | Strong | Limited | Infinum |
| A manufacturer needs a B2B e-commerce platform. | Limited | Strong | Box UK |
| A publisher wants a new content platform. | Limited | Strong | Box UK |
| You need hardware, firmware or IoT work in the same contract | Limited | Limited | Both equally |
| You want a fixed-price first phase before a longer engagement | Strong | Strong | Both equally |
Verdict: Infinum vs Box UK
Infinum (4.1/5) is the stronger overall choice for most Software Development Outsourcing projects. In-house product design and mobile engineering with a strong portfolio of consumer apps.
Box UK (3.8/5) is worth a look in a scenario like this: a publisher wants a new content platform. If your situation matches that, Box UK is a competitive option.
Related comparisons
Infinum vs Box UK FAQ
Is Infinum better than Box UK?
Infinum (4.1/5) scores higher overall, but "better" depends on your use case. Infinum's strongest advantage: design and engineering work as one team, which helps consumer-facing products. Box UK's strongest advantage: cardiff rates are lower than London consultancies.
How do Infinum and Box UK differ in pricing?
Infinum uses time and materials, fixed price pricing. Box UK uses fixed price, time and materials, retainer pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.
Which is better for enterprise: Infinum or Box UK?
Infinum is the larger team and typically the better enterprise-scale choice. For very large programmes, verify team size and compliance coverage directly with each company before shortlisting.
What are the main differences between Infinum and Box UK?
Infinum's primary differentiator is: in-house product design and mobile engineering with a strong portfolio of consumer apps. Box UK's primary differentiator is: small Welsh team with long-standing enterprise web clients. They also differ in team size (350–450 vs 50–100), minimum engagement (Not published vs Not published), and primary industries served (Financial services, Media vs Retail, Media).
Verify all details directly with each company before making a decision.