Kainos vs Version 1: full comparison for 2026
Quick verdict
Kainos (4.2/5) edges ahead of Version 1 (3.9/5) overall. Kainos is the better choice for UK government digital services, Workday programmes. 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.
Kainos vs Version 1: head-to-head summary
| Criterion | Kainos | Version 1 |
|---|---|---|
| Founded | 1986 | 1996 |
| HQ | Belfast, United Kingdom | Dublin, Ireland (UK offices including Birmingham) |
| Team size | 3,000+ | 3,000+ |
| Rating | 4.2 / 5 | 3.9 / 5 |
| Primary differentiator | Combined government digital delivery and Workday partnership, listed on the LSE | Managed services for Oracle, Microsoft and AWS estates with Indian and Spanish delivery |
| Pricing model | Time and materials, fixed price, framework call-offs | 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, Commercial enterprises | Public sector, Financial services, Healthcare, Utilities |
Kainos vs Version 1: overview
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.
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: Kainos vs Version 1
| Capability | Kainos | 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: Kainos vs Version 1
| Framework / platform | Kainos | Version 1 |
|---|---|---|
| .NET | ✓ | ✓ |
| Java | ✓ | ✓ |
| Python | ✓ | N/A |
| React | N/A | N/A |
| AWS | ✓ | ✓ |
| Azure | ✓ | ✓ |
| Kubernetes | ✓ | N/A |
| Embedded | N/A | N/A |
Pricing comparison: Kainos vs Version 1
| Criterion | Kainos | Version 1 |
|---|---|---|
| Minimum engagement | Not published | Not published |
| Engagement models | Fixed project, 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: Kainos vs Version 1
| Dimension | Kainos | 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 | A government department needs a GOV.UK service built and run., An NHS body wants a digital patient service delivered onshore. | A public body needs Oracle E-Business Suite support and migration., A utility wants Azure managed services. |
| Typical project type | Fixed project | Managed service |
Kainos vs Version 1: pros and cons
| 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 |
| 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 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.
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: Kainos vs Version 1
| 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 | Check each company's engagement model |
| Your budget is at the lower end | Compare: Kainos (Not published) vs Version 1 (Not published) |
| You need specialist depth in a specific vertical | Kainos |
| 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: Kainos vs Version 1
| Use case | Kainos fit | Version 1 fit | Winner |
|---|---|---|---|
| A government department needs a GOV.UK service built and run. | Strong | Limited | Kainos |
| An NHS body wants a digital patient service delivered onshore. | Strong | Limited | Kainos |
| 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: Kainos vs Version 1
Kainos (4.2/5) is the stronger overall choice for most Software Development Outsourcing projects. Combined government digital delivery and Workday partnership, listed on the LSE.
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
Kainos vs Version 1 FAQ
Is Kainos better than Version 1?
Kainos (4.2/5) scores higher overall, but "better" depends on your use case. Kainos's strongest advantage: belfast-based delivery costs less than London while staying UK-based. Version 1's strongest advantage: strong in Oracle and Microsoft environments common in UK public bodies.
How do Kainos and Version 1 differ in pricing?
Kainos uses time and materials, fixed price, framework call-offs 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: Kainos or Version 1?
Kainos 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 Kainos and Version 1?
Kainos's primary differentiator is: combined government digital delivery and Workday partnership, listed on the LSE. 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 (3,000+ 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.