Best Software Development Outsourcing UK

Ciklum vs Thoughtworks: full comparison for 2026

Quick verdict

Ciklum (4.1/5) edges ahead of Thoughtworks (3.9/5) overall. Ciklum is the better choice for large dedicated teams with a London contract. Thoughtworks is the stronger option for complex modernisation, engineering culture change. The right choice depends on your project size, budget, and required tech stack.

Ciklum vs Thoughtworks: head-to-head summary

Criterion Ciklum Thoughtworks
Founded 2002 1993
HQ London, United Kingdom Chicago, United States (UK offices)
Team size 3,000–4,500 10,000+
Rating 4.1 / 5 3.9 / 5
Primary differentiator London headquarters with a long history of large dedicated teams in Ukraine and Central Europe Thought leadership in software practice, backed by a large global delivery network
Pricing model Dedicated team, time and materials, managed service Time and materials
Min. engagement Not published Not published
Primary tech stack Java, .NET, Python Java, Kotlin, TypeScript
Industries served Financial services, Retail, Healthcare, Media, Travel Financial services, Retail, Public sector, Healthcare, Media

Ciklum vs Thoughtworks: 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.

Thoughtworks

Thoughtworks was founded in Chicago in 1993 and has had a significant UK presence for decades. Apax Partners took it private in a deal valued at about $1.75bn that closed in late 2024, after a NASDAQ listing in 2021, and the transaction came with job cuts affecting about 6–7% of its 10,500 staff. It is known for its Technology Radar and for shaping agile and continuous-delivery practice. It has delivery centres in India, China, Brazil and elsewhere, but UK engagements usually lean on senior onshore consultants.

Services and capabilities: Ciklum vs Thoughtworks

Capability Ciklum Thoughtworks
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 Thoughtworks

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

Pricing comparison: Ciklum vs Thoughtworks

Criterion Ciklum Thoughtworks
Minimum engagement Not published Not published
Engagement models Dedicated team, Managed service, Time and materials Time and materials, Team extension
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: Ciklum vs Thoughtworks

Dimension Ciklum Thoughtworks
Best company size Startup to mid-market Enterprise
Best industries Financial services, Retail, Healthcare Financial services, Retail, Public sector
Best use cases A retailer needs a 30-person e-commerce team., A healthcare firm wants a managed QA and testing service. A bank wants to break up a core monolith., A retailer needs to rebuild its platform and change how teams work.
Typical project type Dedicated team Time and materials

Ciklum vs Thoughtworks: 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
Thoughtworks
+ Very strong senior consultants and engineering practices
+ Global delivery network for blended teams
+ Well suited to modernisation programmes that need cultural change
- Taken private by Apax in 2024 alongside a restructuring that cut 6–7% of staff
- Premium pricing, especially with senior UK consultants
- Overkill for straightforward builds

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 Thoughtworks?

A typical fit: a bank wants to break up a core monolith.

Thought leadership in software practice, backed by a large global delivery network. Minimum engagement is not publicly disclosed. Works best with clients in Financial services, Retail, Public sector, Healthcare, Media.

Decision matrix: Ciklum vs Thoughtworks

Your situation Recommended choice
You need full-ownership delivery on a defined project scope Both offer fixed-price models
You need a large dedicated team for an ongoing programme Ciklum
Your budget is at the lower end Compare: Ciklum (Not published) vs Thoughtworks (Not published)
You need specialist depth in a specific vertical Ciklum
You want engineers added to your own in-house team Thoughtworks
Your product includes hardware, firmware or connected devices Neither; consider an embedded specialist

Use case fit: Ciklum vs Thoughtworks

Use case Ciklum fit Thoughtworks 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 bank wants to break up a core monolith. Limited Strong Thoughtworks
A retailer needs to rebuild its platform and change how teams work. Limited Strong Thoughtworks
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 Limited Limited Both equally

Verdict: Ciklum vs Thoughtworks

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.

Thoughtworks (3.9/5) is worth a look in a scenario like this: a retailer needs to rebuild its platform and change how teams work. If your situation matches that, Thoughtworks is a competitive option.

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Ciklum vs Thoughtworks FAQ

Is Ciklum better than Thoughtworks?

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. Thoughtworks's strongest advantage: very strong senior consultants and engineering practices.

How do Ciklum and Thoughtworks differ in pricing?

Ciklum uses dedicated team, time and materials, managed service pricing. Thoughtworks uses time and materials pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: Ciklum or Thoughtworks?

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 Thoughtworks?

Ciklum's primary differentiator is: london headquarters with a long history of large dedicated teams in Ukraine and Central Europe. Thoughtworks's primary differentiator is: thought leadership in software practice, backed by a large global delivery network. They also differ in team size (3,000–4,500 vs 10,000+), minimum engagement (Not published vs Not published), and primary industries served (Financial services, Retail vs Financial services, Retail).

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