Best Software Development Outsourcing UK

BJSS (CGI) vs Version 1: full comparison for 2026

Quick verdict

BJSS (CGI) (4.0/5) edges ahead of Version 1 (3.9/5) overall. BJSS (CGI) is the better choice for NHS and government programmes, large onshore delivery. Version 1 is the stronger option for oracle and Microsoft estates, public-sector managed services. The right choice depends on your project size, budget, and required tech stack.

BJSS (CGI) vs Version 1: head-to-head summary

Criterion BJSS (CGI) Version 1
Founded 1993 1996
HQ Leeds, United Kingdom (owned by CGI) Dublin, Ireland (UK offices including Birmingham)
Team size 2,000–2,500 3,000+
Rating 4.0 / 5 3.9 / 5
Primary differentiator Large UK onshore delivery capacity, now backed by CGI's global network Managed services for Oracle, Microsoft and AWS estates with Indian and Spanish delivery
Pricing model Time and materials, fixed price, managed service Managed service, time and materials, fixed price
Min. engagement Not published Not published
Primary tech stack Java, .NET, AWS Oracle, Microsoft Azure, AWS
Industries served Public sector, Healthcare, Financial services, Retail, Energy Public sector, Financial services, Healthcare, Utilities

BJSS (CGI) vs Version 1: 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.

Version 1

Version 1 was founded in Dublin in 1996 and has been majority-owned by Swiss investor Partners Group since July 2022, in a deal reported at around €800m. It had more than 3,200 staff by 2023 and opened a Birmingham hub with 500 planned jobs, plus UK acquisitions such as Automation Logic. Much of its UK work is Oracle, Microsoft and AWS managed services for public-sector bodies. Delivery comes from Ireland, the UK, Spain and India.

Services and capabilities: BJSS (CGI) vs Version 1

Capability BJSS (CGI) Version 1
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 Version 1

Framework / platform BJSS (CGI) Version 1
.NET ✓ ✓
Java ✓ ✓
Python ✓ N/A
React N/A N/A
AWS ✓ ✓
Azure ✓ ✓
Kubernetes ✓ N/A
Embedded N/A N/A

Pricing comparison: BJSS (CGI) vs Version 1

Criterion BJSS (CGI) Version 1
Minimum engagement Not published Not published
Engagement models Fixed project, Managed service, Time and materials Managed service, Fixed project, Time and materials
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: BJSS (CGI) vs Version 1

Dimension BJSS (CGI) Version 1
Best company size Startup to mid-market Startup to mid-market
Best industries Public sector, Healthcare, Financial services Public sector, Financial services, Healthcare
Best use cases An NHS trust needs a national-scale digital service., A bank wants a large onshore team with independent testing. A public body needs Oracle E-Business Suite support and migration., A utility wants Azure managed services.
Typical project type Fixed project Managed service

BJSS (CGI) vs Version 1: 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
Version 1
+ Strong in Oracle and Microsoft environments common in UK public bodies
+ Indian and Spanish delivery lower costs on managed services
+ Private-equity backing has funded UK expansion
- Majority-owned by Partners Group since 2022, so an eventual sale or exit is likely
- Product-style bespoke development is less central than managed services

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 Version 1?

A typical fit: a public body needs Oracle E-Business Suite support and migration.

Managed services for Oracle, Microsoft and AWS estates with Indian and Spanish delivery. Minimum engagement is not publicly disclosed. Works best with clients in Public sector, Financial services, Healthcare, Utilities.

Decision matrix: BJSS (CGI) vs Version 1

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 Version 1 (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 Version 1

Use case BJSS (CGI) fit Version 1 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 public body needs Oracle E-Business Suite support and migration. Limited Strong Version 1
A utility wants Azure managed services. Limited Strong Version 1
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 Version 1

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.

Version 1 (3.9/5) is worth a look in a scenario like this: a utility wants Azure managed services. If your situation matches that, Version 1 is a competitive option.

Related comparisons

BJSS (CGI) vs Version 1 FAQ

Is BJSS (CGI) better than Version 1?

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. Version 1's strongest advantage: strong in Oracle and Microsoft environments common in UK public bodies.

How do BJSS (CGI) and Version 1 differ in pricing?

BJSS (CGI) uses time and materials, fixed price, managed service pricing. Version 1 uses managed service, time and materials, fixed price 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 Version 1?

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 Version 1?

BJSS (CGI)'s primary differentiator is: large UK onshore delivery capacity, now backed by CGI's global network. Version 1's primary differentiator is: managed services for Oracle, Microsoft and AWS estates with Indian and Spanish delivery. They also differ in team size (2,000–2,500 vs 3,000+), minimum engagement (Not published vs Not published), and primary industries served (Public sector, Healthcare vs Public sector, Financial services).

Verify all details directly with each company before making a decision.