Best Software Development Outsourcing UK

Ciklum vs Sigma Software: full comparison for 2026

Quick verdict

Ciklum (4.1/5) edges ahead of Sigma Software (4.0/5) overall. Ciklum is the better choice for large dedicated teams with a London contract. 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.

Ciklum vs Sigma Software: head-to-head summary

Criterion Ciklum Sigma Software
Founded 2002 2002
HQ London, United Kingdom Stockholm, Sweden and Kyiv, Ukraine (UK presence)
Team size 3,000–4,500 2,000+
Rating 4.1 / 5 4.0 / 5
Primary differentiator London headquarters with a long history of large dedicated teams in Ukraine and Central Europe Swedish group ownership with Ukrainian and Polish engineering
Pricing model Dedicated team, time and materials, managed service Time and materials, dedicated team, fixed price
Min. engagement Not published Not published
Primary tech stack Java, .NET, Python Java, .NET, C++
Industries served Financial services, Retail, Healthcare, Media, Travel Automotive, Telecoms, Financial services, Media, Healthcare

Ciklum vs Sigma Software: overview

Ciklum

Danish entrepreneur Torben Majgaard started Ciklum in 2002 in Kyiv. It is now headquartered in London's Shoreditch and employs around 4,000 people. Its investors have included Horizon Capital, a fund associated with George Soros, and Dragon Capital, but current ownership is not publicly documented. Delivery is concentrated in Ukraine and Poland, plus the Czech Republic since its 2021 acquisition of Prague-based CN Group.

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: Ciklum vs Sigma Software

Capability Ciklum 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: Ciklum vs Sigma Software

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

Pricing comparison: Ciklum vs Sigma Software

Criterion Ciklum Sigma Software
Minimum engagement Not published Not published
Engagement models Dedicated team, 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: Ciklum vs Sigma Software

Dimension Ciklum Sigma Software
Best company size Startup to mid-market Startup to mid-market
Best industries Financial services, Retail, Healthcare Automotive, Telecoms, Financial services
Best use cases A retailer needs a 30-person e-commerce team., A healthcare firm wants a managed QA and testing service. A telecoms firm needs network software engineers., An automotive supplier wants embedded developers.
Typical project type Dedicated team Dedicated team

Ciklum vs Sigma Software: pros and cons

Ciklum
+ London HQ makes contracting simple for UK buyers
+ Twenty years of experience running large remote teams
+ Several delivery countries spread location risk
- Ownership has changed hands between investors several times, and the current cap table is not public
- A large Ukrainian workforce means continuity plans need review
- Mid-sized clients may find the sales process heavy
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 Ciklum?

A typical fit: a retailer needs a 30-person e-commerce team.

London headquarters with a long history of large dedicated teams in Ukraine and Central Europe. Minimum engagement is not publicly disclosed. Works best with clients in Financial services, Retail, Healthcare, Media, Travel.

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: Ciklum vs Sigma Software

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

Use case fit: Ciklum vs Sigma Software

Use case Ciklum fit Sigma Software fit Winner
A retailer needs a 30-person e-commerce team. Strong Limited Ciklum
A healthcare firm wants a managed QA and testing service. Strong Limited Ciklum
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 Limited Strong Sigma Software

Verdict: Ciklum vs Sigma Software

Ciklum (4.1/5) is the stronger overall choice for most Software Development Outsourcing projects. London headquarters with a long history of large dedicated teams in Ukraine and Central Europe.

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

Ciklum vs Sigma Software FAQ

Is Ciklum better than Sigma Software?

Ciklum (4.1/5) scores higher overall, but "better" depends on your use case. Ciklum's strongest advantage: london HQ makes contracting simple for UK buyers. Sigma Software's strongest advantage: swedish parent adds governance and financial backing.

How do Ciklum and Sigma Software differ in pricing?

Ciklum uses dedicated team, time and materials, managed service 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: Ciklum or Sigma Software?

Ciklum 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 Ciklum and Sigma Software?

Ciklum's primary differentiator is: london headquarters with a long history of large dedicated teams in Ukraine and Central Europe. Sigma Software's primary differentiator is: swedish group ownership with Ukrainian and Polish engineering. They also differ in team size (3,000–4,500 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.