Best Software Development Outsourcing UK

BJSS (CGI) vs EPAM Systems: full comparison for 2026

Quick verdict

BJSS (CGI) (4.0/5) edges ahead of EPAM Systems (3.9/5) overall. BJSS (CGI) is the better choice for NHS and government programmes, large onshore delivery. EPAM Systems is the stronger option for FTSE-scale programmes, strict compliance, huge teams. The right choice depends on your project size, budget, and required tech stack.

BJSS (CGI) vs EPAM Systems: head-to-head summary

Criterion BJSS (CGI) EPAM Systems
Founded 1993 1993
HQ Leeds, United Kingdom (owned by CGI) Newtown, Pennsylvania, United States (London and Newcastle offices)
Team size 2,000–2,500 50,000+
Rating 4.0 / 5 3.9 / 5
Primary differentiator Large UK onshore delivery capacity, now backed by CGI's global network The largest delivery capacity on this list, with mature compliance and security processes
Pricing model Time and materials, fixed price, managed service Time and materials, managed service, fixed price
Min. engagement Not published Not published
Primary tech stack Java, .NET, AWS Java, .NET, AWS
Industries served Public sector, Healthcare, Financial services, Retail, Energy Financial services, Retail, Healthcare, Media, Manufacturing

BJSS (CGI) vs EPAM Systems: 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.

EPAM Systems

EPAM Systems was founded in 1993 and is headquartered in Newtown, Pennsylvania. It reported more than 62,750 employees in Q1 2026. In the UK it has offices in London and Newcastle, but most delivery comes from Central and Eastern Europe, India and Latin America. Its size suits large regulated programmes better than small or mid-sized builds.

Services and capabilities: BJSS (CGI) vs EPAM Systems

Capability BJSS (CGI) EPAM Systems
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 EPAM Systems

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

Pricing comparison: BJSS (CGI) vs EPAM Systems

Criterion BJSS (CGI) EPAM Systems
Minimum engagement Not published Not published
Engagement models Fixed project, Managed service, Time and materials Dedicated team, 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 EPAM Systems

Dimension BJSS (CGI) EPAM Systems
Best company size Startup to mid-market Startup to mid-market
Best industries Public sector, Healthcare, Financial services Financial services, Retail, Healthcare
Best use cases An NHS trust needs a national-scale digital service., A bank wants a large onshore team with independent testing. A bank needs a 200-person platform programme., A global retailer wants a managed engineering service.
Typical project type Fixed project Dedicated team

BJSS (CGI) vs EPAM Systems: 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
EPAM Systems
+ Can staff hundreds of engineers on one programme
+ Mature security, audit and compliance processes for regulated buyers
+ Public-company reporting
- Little benefit for mid-market buyers, who can get more attention elsewhere
- UK offices are small relative to global delivery
- Account processes are heavy for smaller projects

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 EPAM Systems?

A typical fit: a bank needs a 200-person platform programme.

The largest delivery capacity on this list, with mature compliance and security processes. Minimum engagement is not publicly disclosed. Works best with clients in Financial services, Retail, Healthcare, Media, Manufacturing.

Decision matrix: BJSS (CGI) vs EPAM Systems

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

Use case BJSS (CGI) fit EPAM Systems 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 bank needs a 200-person platform programme. Limited Strong EPAM Systems
A global retailer wants a managed engineering service. Limited Strong EPAM Systems
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 EPAM Systems

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.

EPAM Systems (3.9/5) is worth a look in a scenario like this: a global retailer wants a managed engineering service. If your situation matches that, EPAM Systems is a competitive option.

Related comparisons

BJSS (CGI) vs EPAM Systems FAQ

Is BJSS (CGI) better than EPAM Systems?

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. EPAM Systems's strongest advantage: can staff hundreds of engineers on one programme.

How do BJSS (CGI) and EPAM Systems differ in pricing?

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

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 EPAM Systems?

BJSS (CGI)'s primary differentiator is: large UK onshore delivery capacity, now backed by CGI's global network. EPAM Systems's primary differentiator is: the largest delivery capacity on this list, with mature compliance and security processes. They also differ in team size (2,000–2,500 vs 50,000+), minimum engagement (Not published vs Not published), and primary industries served (Public sector, Healthcare vs Financial services, Retail).

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