Best Software Development Outsourcing UK

Codurance vs Sigma Software: full comparison for 2026

Quick verdict

Codurance (4.1/5) edges ahead of Sigma Software (4.0/5) overall. Codurance is the better choice for legacy modernisation, engineering-practice improvement. Sigma Software is the stronger option for broad-scope outsourcing, Scandinavian-owned vendor. The right choice depends on your project size, budget, and required tech stack.

Codurance vs Sigma Software: head-to-head summary

Criterion Codurance Sigma Software
Founded 2013 2002
HQ London, United Kingdom Stockholm, Sweden and Kyiv, Ukraine (UK presence)
Team size 150–300 2,000+
Rating 4.1 / 5 4.0 / 5
Primary differentiator Craftsmanship-led delivery that also coaches in-house teams Swedish group ownership with Ukrainian and Polish engineering
Pricing model Time and materials, fixed price Time and materials, dedicated team, fixed price
Min. engagement Not published Not published
Primary tech stack Java, Kotlin, C# Java, .NET, C++
Industries served Financial services, Retail, Media, Public sector Automotive, Telecoms, Financial services, Media, Healthcare

Codurance vs Sigma Software: overview

Codurance

Mashooq Badar co-founded Codurance in London in 2013. Its pitch is software craftsmanship: test-driven development, pairing and clean architecture. Besides London and Manchester, it has offices in Barcelona, Madrid and Lisbon, which bring Iberian rates into the mix. Headcount estimates range from roughly 170 to 300.

Sigma Software

Sigma Software was founded in 2002 and belongs to the Swedish Sigma group. It describes a team of over 2,100 professionals in 40 offices across 19 countries, with most engineering in Ukraine and Poland. Directories list it inconsistently as UK-based or Stockholm-based, which reflects its mix of Swedish ownership and international offices. It covers a broad range of services and industries.

Services and capabilities: Codurance vs Sigma Software

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

Tech stack comparison: Codurance vs Sigma Software

Framework / platform Codurance Sigma Software
.NET ✓ ✓
Java ✓ ✓
Python N/A ✓
React N/A ✓
AWS ✓ ✓
Azure ✓ ✓
Kubernetes N/A N/A
Embedded N/A N/A

Pricing comparison: Codurance vs Sigma Software

Criterion Codurance Sigma Software
Minimum engagement Not published Not published
Engagement models Fixed project, Team extension, 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: Codurance vs Sigma Software

Dimension Codurance Sigma Software
Best company size Startup to mid-market Startup to mid-market
Best industries Financial services, Retail, Media Automotive, Telecoms, Financial services
Best use cases A company needs a monolith split into services without stopping feature work., An engineering team wants to adopt test-driven development and pairing with outside help. A telecoms firm needs network software engineers., An automotive supplier wants embedded developers.
Typical project type Fixed project Dedicated team

Codurance vs Sigma Software: pros and cons

Codurance
+ Strong on cleaning up legacy codebases and raising engineering standards
+ Spanish and Portuguese offices provide a cheaper option without leaving Western Europe
+ Coaching is built into engagements, so client teams improve along the way
- Small team limits how fast it can staff a large programme
- Iberian rates are higher than Central and Eastern European ones
Sigma Software
+ Swedish parent adds governance and financial backing
+ Broad technical range, including embedded and automotive
+ Ukrainian and Polish rates
- UK office details are hard to confirm from public sources
- Breadth means less obvious specialism in any one area

Who should choose Codurance?

A typical fit: a company needs a monolith split into services without stopping feature work.

Craftsmanship-led delivery that also coaches in-house teams. Minimum engagement is not publicly disclosed. Works best with clients in Financial services, Retail, Media, Public sector.

Who should choose Sigma Software?

A typical fit: a telecoms firm needs network software engineers.

Swedish group ownership with Ukrainian and Polish engineering. Minimum engagement is not publicly disclosed. Works best with clients in Automotive, Telecoms, Financial services, Media, Healthcare.

Decision matrix: Codurance vs Sigma Software

Your situation Recommended choice
You need full-ownership delivery on a defined project scope Codurance
You need a large dedicated team for an ongoing programme Sigma Software
Your budget is at the lower end Compare: Codurance (Not published) vs Sigma Software (Not published)
You need specialist depth in a specific vertical Sigma Software
You want engineers added to your own in-house team Codurance
Your product includes hardware, firmware or connected devices Sigma Software

Use case fit: Codurance vs Sigma Software

Use case Codurance fit Sigma Software fit Winner
A company needs a monolith split into services without stopping feature work. Strong Limited Codurance
An engineering team wants to adopt test-driven development and pairing with outside help. Strong Limited Codurance
A telecoms firm needs network software engineers. Limited Strong Sigma Software
An automotive supplier wants embedded developers. Limited Strong Sigma Software
You need hardware, firmware or IoT work in the same contract Limited Strong Sigma Software
You want a fixed-price first phase before a longer engagement Strong Strong Both equally

Verdict: Codurance vs Sigma Software

Codurance (4.1/5) is the stronger overall choice for most Software Development Outsourcing projects. Craftsmanship-led delivery that also coaches in-house teams.

Sigma Software (4.0/5) is worth a look in a scenario like this: an automotive supplier wants embedded developers. If your situation matches that, Sigma Software is a competitive option.

Related comparisons

Codurance vs Sigma Software FAQ

Is Codurance better than Sigma Software?

Codurance (4.1/5) scores higher overall, but "better" depends on your use case. Codurance's strongest advantage: strong on cleaning up legacy codebases and raising engineering standards. Sigma Software's strongest advantage: swedish parent adds governance and financial backing.

How do Codurance and Sigma Software differ in pricing?

Codurance uses time and materials, fixed price pricing. Sigma Software uses time and materials, dedicated team, fixed price pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: Codurance or Sigma Software?

Codurance 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 Codurance and Sigma Software?

Codurance's primary differentiator is: craftsmanship-led delivery that also coaches in-house teams. Sigma Software's primary differentiator is: swedish group ownership with Ukrainian and Polish engineering. They also differ in team size (150–300 vs 2,000+), minimum engagement (Not published vs Not published), and primary industries served (Financial services, Retail vs Automotive, Telecoms).

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