BJSS (CGI) vs Box UK: full comparison for 2026
Quick verdict
BJSS (CGI) (4.0/5) edges ahead of Box UK (3.8/5) overall. BJSS (CGI) is the better choice for NHS and government programmes, large onshore delivery. 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.
BJSS (CGI) vs Box UK: head-to-head summary
| Criterion | BJSS (CGI) | Box UK |
|---|---|---|
| Founded | 1993 | 1998 |
| HQ | Leeds, United Kingdom (owned by CGI) | Cardiff, United Kingdom |
| Team size | 2,000–2,500 | 50–100 |
| Rating | 4.0 / 5 | 3.8 / 5 |
| Primary differentiator | Large UK onshore delivery capacity, now backed by CGI's global network | Small Welsh team with long-standing enterprise web clients |
| Pricing model | Time and materials, fixed price, managed service | Fixed price, time and materials, retainer |
| Min. engagement | Not published | Not published |
| Primary tech stack | Java, .NET, AWS | PHP, WordPress, Drupal |
| Industries served | Public sector, Healthcare, Financial services, Retail, Energy | Retail, Media, Manufacturing, Healthcare |
BJSS (CGI) vs Box UK: overview
BJSS (CGI)
BJSS was founded in Leeds in 1993 and grew into one of the UK's largest independent technology consultancies before CGI completed its acquisition in February 2025. The deal brought about 2,400 BJSS staff into CGI and took CGI's UK headcount past 8,500. BJSS teams are being merged into CGI's metro-based UK operating model. UK clients get the scale and governance of a global group, with nearshore capacity now available through CGI centres such as Portugal.
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: BJSS (CGI) vs Box UK
| Capability | BJSS (CGI) | 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: BJSS (CGI) vs Box UK
| Framework / platform | BJSS (CGI) | Box UK |
|---|---|---|
| .NET | ✓ | N/A |
| Java | ✓ | N/A |
| Python | ✓ | N/A |
| React | N/A | ✓ |
| AWS | ✓ | ✓ |
| Azure | ✓ | N/A |
| Kubernetes | ✓ | N/A |
| Embedded | N/A | N/A |
Pricing comparison: BJSS (CGI) vs Box UK
| Criterion | BJSS (CGI) | Box UK |
|---|---|---|
| Minimum engagement | Not published | Not published |
| Engagement models | Fixed project, Managed service, 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: BJSS (CGI) vs Box UK
| Dimension | BJSS (CGI) | Box UK |
|---|---|---|
| Best company size | Startup to mid-market | Startup to mid-market |
| Best industries | Public sector, Healthcare, Financial services | Retail, Media, Manufacturing |
| Best use cases | An NHS trust needs a national-scale digital service., A bank wants a large onshore team with independent testing. | A manufacturer needs a B2B e-commerce platform., A publisher wants a new content platform. |
| Typical project type | Fixed project | Fixed project |
BJSS (CGI) vs Box UK: pros and cons
| BJSS (CGI) | |
|---|---|
| + | Long record on large NHS and government programmes |
| + | CGI ownership adds financial stability and access to nearshore centres |
| + | Strong testing and quality engineering practice |
| - | Acquired by CGI in 2025, and integration into CGI's model may change account teams and processes |
| - | Large-consultancy pricing and governance are heavy for small projects |
| 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 BJSS (CGI)?
A typical fit: an NHS trust needs a national-scale digital service.
Large UK onshore delivery capacity, now backed by CGI's global network. Minimum engagement is not publicly disclosed. Works best with clients in Public sector, Healthcare, Financial services, Retail, Energy.
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: BJSS (CGI) vs Box UK
| Your situation | Recommended choice |
|---|---|
| You need full-ownership delivery on a defined project scope | BJSS (CGI) |
| You need a large dedicated team for an ongoing programme | Check each company's engagement model |
| Your budget is at the lower end | Compare: BJSS (CGI) (Not published) vs Box UK (Not published) |
| You need specialist depth in a specific vertical | BJSS (CGI) |
| 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: BJSS (CGI) vs Box UK
| Use case | BJSS (CGI) fit | Box UK fit | Winner |
|---|---|---|---|
| An NHS trust needs a national-scale digital service. | Strong | Limited | BJSS (CGI) |
| A bank wants a large onshore team with independent testing. | Strong | Limited | BJSS (CGI) |
| 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: BJSS (CGI) vs Box UK
BJSS (CGI) (4.0/5) is the stronger overall choice for most Software Development Outsourcing projects. Large UK onshore delivery capacity, now backed by CGI's global network.
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
BJSS (CGI) vs Box UK FAQ
Is BJSS (CGI) better than Box UK?
BJSS (CGI) (4.0/5) scores higher overall, but "better" depends on your use case. BJSS (CGI)'s strongest advantage: long record on large NHS and government programmes. Box UK's strongest advantage: cardiff rates are lower than London consultancies.
How do BJSS (CGI) and Box UK differ in pricing?
BJSS (CGI) uses time and materials, fixed price, managed service 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: BJSS (CGI) or Box UK?
BJSS (CGI) 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 BJSS (CGI) and Box UK?
BJSS (CGI)'s primary differentiator is: large UK onshore delivery capacity, now backed by CGI's global network. Box UK's primary differentiator is: small Welsh team with long-standing enterprise web clients. They also differ in team size (2,000–2,500 vs 50–100), minimum engagement (Not published vs Not published), and primary industries served (Public sector, Healthcare vs Retail, Media).
Verify all details directly with each company before making a decision.