Best Software Development Outsourcing UK

N-iX vs Kainos: full comparison for 2026

Quick verdict

N-iX (4.3/5) edges ahead of Kainos (4.2/5) overall. N-iX is the better choice for large dedicated teams, data and cloud engineering, Ukrainian rates. Kainos is the stronger option for UK government digital services, Workday programmes. The right choice depends on your project size, budget, and required tech stack.

N-iX vs Kainos: head-to-head summary

Criterion N-iX Kainos
Founded 2002 1986
HQ Lviv, Ukraine (UK entity in London) Belfast, United Kingdom
Team size 2,000–2,500 3,000+
Rating 4.3 / 5 4.2 / 5
Primary differentiator A 2,400-engineer pool that can staff large data and cloud teams quickly Combined government digital delivery and Workday partnership, listed on the LSE
Pricing model Dedicated team, time and materials Time and materials, fixed price, framework call-offs
Min. engagement Not published Not published
Primary tech stack Java, .NET, Python Java, .NET, AWS
Industries served Financial services, Retail, Telecoms, Manufacturing, Healthcare Public sector, Healthcare, Financial services, Commercial enterprises

N-iX vs Kainos: overview

N-iX

N-iX started in Lviv in 2002 as Novellix, building applications for Novell's Linux platform, and Novell became its first large client. It now reports more than 2,400 engineers in Ukraine, Poland and other countries. In the UK it trades through N-iX Technologies Limited, registered in London in 2022, though public sources do not show a staffed UK delivery office. It suits buyers who want a large Central and Eastern European engineering pool and are comfortable managing it remotely.

Kainos

Kainos was founded in Belfast in 1986 and is listed on the London Stock Exchange. In the year to March 2026 it reported revenue of £431.1m, up 17%, and a workforce of 3,216 after adding 420 people, a rebound from a 2024/25 restructuring that cut staff by 7%. It runs three divisions: Digital Services, Workday Services and Workday Products. Its government work spans departments such as the Home Office and NHS bodies, delivered from the UK and Ireland.

Services and capabilities: N-iX vs Kainos

Capability N-iX Kainos
Custom software development ✓ ✓
Mobile app development ✗ ✗
Cloud & DevOps ✓ ✓
Data & AI ✓ ✓
Legacy modernisation ✗ ✓
Embedded & IoT ✓ ✗
Dedicated team model ✓ ✗
Fixed-price projects ✗ ✓

Tech stack comparison: N-iX vs Kainos

Framework / platform N-iX Kainos
.NET ✓ ✓
Java ✓ ✓
Python ✓ ✓
React N/A N/A
AWS ✓ ✓
Azure ✓ ✓
Kubernetes N/A ✓
Embedded N/A N/A

Pricing comparison: N-iX vs Kainos

Criterion N-iX Kainos
Minimum engagement Not published Not published
Engagement models Dedicated team, Time and materials Fixed project, Time and materials
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: N-iX vs Kainos

Dimension N-iX Kainos
Best company size Startup to mid-market Startup to mid-market
Best industries Financial services, Retail, Telecoms Public sector, Healthcare, Financial services
Best use cases A retailer needs a 20-person data engineering team on Databricks., A telecoms company wants a long-term dedicated team for platform development. A government department needs a GOV.UK service built and run., An NHS body wants a digital patient service delivered onshore.
Typical project type Dedicated team Fixed project

N-iX vs Kainos: pros and cons

N-iX
+ Large engineering pool makes it practical to grow from 5 to 50 people on one account
+ Data engineering and cloud migration are well covered
+ Some embedded and IoT capability for connected-product work
- UK presence appears to be a legal entity rather than a staffed delivery office
- Most engineering is in Ukraine, so continuity planning should be part of due diligence
Kainos
+ Belfast-based delivery costs less than London while staying UK-based
+ Public reporting gives buyers verified financials and headcount
+ Very familiar with UK public-sector procurement frameworks
- Little offshore capacity, so rates do not compete with nearshore vendors
- Workday business takes a growing share of leadership focus
- The 2024/25 restructuring shows exposure to swings in public-sector spending

Who should choose N-iX?

A typical fit: a retailer needs a 20-person data engineering team on Databricks.

A 2,400-engineer pool that can staff large data and cloud teams quickly. Minimum engagement is not publicly disclosed. Works best with clients in Financial services, Retail, Telecoms, Manufacturing, Healthcare.

Who should choose Kainos?

A typical fit: a government department needs a GOV.UK service built and run.

Combined government digital delivery and Workday partnership, listed on the LSE. Minimum engagement is not publicly disclosed. Works best with clients in Public sector, Healthcare, Financial services, Commercial enterprises.

Decision matrix: N-iX vs Kainos

Your situation Recommended choice
You need full-ownership delivery on a defined project scope Kainos
You need a large dedicated team for an ongoing programme N-iX
Your budget is at the lower end Compare: N-iX (Not published) vs Kainos (Not published)
You need specialist depth in a specific vertical N-iX
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 N-iX

Use case fit: N-iX vs Kainos

Use case N-iX fit Kainos fit Winner
A retailer needs a 20-person data engineering team on Databricks. Strong Limited N-iX
A telecoms company wants a long-term dedicated team for platform development. Strong Limited N-iX
A government department needs a GOV.UK service built and run. Limited Strong Kainos
An NHS body wants a digital patient service delivered onshore. Limited Strong Kainos
You need hardware, firmware or IoT work in the same contract Strong Limited N-iX
You want a fixed-price first phase before a longer engagement Limited Strong Kainos

Verdict: N-iX vs Kainos

N-iX (4.3/5) is the stronger overall choice for most Software Development Outsourcing projects. A 2,400-engineer pool that can staff large data and cloud teams quickly.

Kainos (4.2/5) is worth a look in a scenario like this: an NHS body wants a digital patient service delivered onshore. If your situation matches that, Kainos is a competitive option.

Related comparisons

N-iX vs Kainos FAQ

Is N-iX better than Kainos?

N-iX (4.3/5) scores higher overall, but "better" depends on your use case. N-iX's strongest advantage: large engineering pool makes it practical to grow from 5 to 50 people on one account. Kainos's strongest advantage: belfast-based delivery costs less than London while staying UK-based.

How do N-iX and Kainos differ in pricing?

N-iX uses dedicated team, time and materials pricing. Kainos uses time and materials, fixed price, framework call-offs pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: N-iX or Kainos?

N-iX 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 N-iX and Kainos?

N-iX's primary differentiator is: a 2,400-engineer pool that can staff large data and cloud teams quickly. Kainos's primary differentiator is: combined government digital delivery and Workday partnership, listed on the LSE. They also differ in team size (2,000–2,500 vs 3,000+), minimum engagement (Not published vs Not published), and primary industries served (Financial services, Retail vs Public sector, Healthcare).

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