Best Software Development Outsourcing UK

BJSS (CGI) vs Itransition: full comparison for 2026

Quick verdict

BJSS (CGI) (4.0/5) edges ahead of Itransition (3.8/5) overall. BJSS (CGI) is the better choice for NHS and government programmes, large onshore delivery. Itransition is the stronger option for budget-conscious buyers, broad generalist work. The right choice depends on your project size, budget, and required tech stack.

BJSS (CGI) vs Itransition: head-to-head summary

Criterion BJSS (CGI) Itransition
Founded 1993 1998
HQ Leeds, United Kingdom (owned by CGI) Tbilisi, Georgia (London office)
Team size 2,000–2,500 3,000+
Rating 4.0 / 5 3.8 / 5
Primary differentiator Large UK onshore delivery capacity, now backed by CGI's global network Low rates across a wide catalogue of development and platform services
Pricing model Time and materials, fixed price, managed service Time and materials, fixed price, dedicated team
Min. engagement Not published Not published
Primary tech stack Java, .NET, AWS .NET, Java, PHP
Industries served Public sector, Healthcare, Financial services, Retail, Energy Healthcare, Retail, Financial services, Logistics

BJSS (CGI) vs Itransition: 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.

Itransition

Itransition has been delivering software since 1998 and reports more than 3,000 engineers serving clients in over 40 countries. It lists a London office, while PitchBook gives Tbilisi, Georgia as its corporate office. Historically its delivery base was in Belarus, and it has since built up other locations. Its services span custom development, Salesforce and Microsoft Dynamics, and testing.

Services and capabilities: BJSS (CGI) vs Itransition

Capability BJSS (CGI) Itransition
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 Itransition

Framework / platform BJSS (CGI) Itransition
.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 Itransition

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

Target audience comparison: BJSS (CGI) vs Itransition

Dimension BJSS (CGI) Itransition
Best company size Startup to mid-market Startup to mid-market
Best industries Public sector, Healthcare, Financial services Healthcare, Retail, Financial services
Best use cases An NHS trust needs a national-scale digital service., A bank wants a large onshore team with independent testing. A company needs Salesforce customisation at a low rate., A retailer wants testing capacity for a release programme.
Typical project type Fixed project Dedicated team

BJSS (CGI) vs Itransition: 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
Itransition
+ Among the lowest rates for a vendor of this size
+ Covers CRM platforms such as Salesforce and Dynamics as well as custom builds
+ Large team for staffing flexibility
- Thin evidence of UK-based delivery or account leadership
- Corporate location data is inconsistent between sources
- Historical Belarus base may raise questions with some UK procurement teams

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 Itransition?

A typical fit: a company needs Salesforce customisation at a low rate.

Low rates across a wide catalogue of development and platform services. Minimum engagement is not publicly disclosed. Works best with clients in Healthcare, Retail, Financial services, Logistics.

Decision matrix: BJSS (CGI) vs Itransition

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 Itransition
Your budget is at the lower end Compare: BJSS (CGI) (Not published) vs Itransition (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 Itransition

Use case BJSS (CGI) fit Itransition 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 company needs Salesforce customisation at a low rate. Limited Strong Itransition
A retailer wants testing capacity for a release programme. Limited Strong Itransition
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 Itransition

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.

Itransition (3.8/5) is worth a look in a scenario like this: a retailer wants testing capacity for a release programme. If your situation matches that, Itransition is a competitive option.

Related comparisons

BJSS (CGI) vs Itransition FAQ

Is BJSS (CGI) better than Itransition?

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. Itransition's strongest advantage: among the lowest rates for a vendor of this size.

How do BJSS (CGI) and Itransition differ in pricing?

BJSS (CGI) uses time and materials, fixed price, managed service pricing. Itransition uses time and materials, fixed price, dedicated team 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 Itransition?

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 Itransition?

BJSS (CGI)'s primary differentiator is: large UK onshore delivery capacity, now backed by CGI's global network. Itransition's primary differentiator is: low rates across a wide catalogue of development and platform services. 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 Healthcare, Retail).

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