PA Consulting vs Thoughtworks: full comparison for 2026
Quick verdict
PA Consulting (4.0/5) edges ahead of Thoughtworks (3.8/5) overall. PA Consulting is the better choice for UK public bodies wanting advice plus delivery. Thoughtworks is the stronger option for CTOs judging build-or-buy on AI tooling. The right choice depends on how independent you need the advice to be, your regulatory exposure, and your budget.
PA Consulting vs Thoughtworks: head-to-head summary
| Criterion | PA Consulting | Thoughtworks |
|---|---|---|
| Founded | 1943 | 1993 |
| HQ | London, UK | Chicago, USA |
| Team size | ~3,900 | ~10,000 |
| Rating | 4.0 / 5 | 3.8 / 5 |
| Primary differentiator | Advice from teams that also design and build, strong in UK government | Public Technology Radar and engineering-led build-or-buy advice |
| Pricing model | Consulting fees; rates not published | Time & materials; rates not published |
| Min. engagement | Not disclosed | Not disclosed |
| Primary tech stack | Azure, AWS, GDPR | AWS, Azure, Google Cloud |
| Industries served | Public sector, Defense, Healthcare, Energy & utilities, Consumer | Financial services, Retail, Healthcare, Public sector |
PA Consulting vs Thoughtworks: overview
PA Consulting
PA Consulting started in 1943 as Personnel Administration and is now a London-based firm with about 3,900 employees and £753 million in 2024 revenue. Jacobs has owned 65% since 2021, with staff holding the rest. Its AI advice tends to come from teams that also design and build products, especially for government, defense, and health clients in the UK and Nordics. That makes the advice practical, though rarely independent of a build.
Thoughtworks
Thoughtworks has around 10,000 people and has been based in Chicago since 1993. Apax took it private in a deal announced in August 2024, and a 2026 joint venture with New York advisory firm Teneo aims to strengthen its business advice. Its own advice is strongest on software and data foundations, and its public Technology Radar shows how it judges tools before you hire it.
Services and capabilities: PA Consulting vs Thoughtworks
| Capability | PA Consulting | Thoughtworks |
|---|---|---|
| Readiness assessment | ✗ | ✗ |
| Use-case prioritization | ✓ | ✗ |
| TCO / ROI modeling | ✗ | ✗ |
| AI governance & EU AI Act | ✗ | ✗ |
| Build vs. buy advice | ✗ | ✓ |
| Independent audit or assurance | ✗ | ✗ |
| Roadmap any vendor can implement | ✗ | ✗ |
| Delivery capability after advice | ✓ | ✓ |
Frameworks and platforms: PA Consulting vs Thoughtworks
| Framework / platform | PA Consulting | Thoughtworks |
|---|---|---|
| EU AI Act | ✓ | N/A |
| GDPR | ✓ | N/A |
| DORA | N/A | N/A |
| NIST AI RMF | N/A | N/A |
| ISO/IEC 42001 | N/A | N/A |
| Azure | ✓ | ✓ |
| AWS | ✓ | ✓ |
| Google Cloud | N/A | ✓ |
Pricing comparison: PA Consulting vs Thoughtworks
| Criterion | PA Consulting | Thoughtworks |
|---|---|---|
| Minimum engagement | Not disclosed | Not disclosed |
| Engagement models | Multi-use-case advisory, Delivery team | Multi-use-case advisory, Delivery team |
| Rate transparency | Not public | Not public |
| Price tier | Mid-market | Mid-market |
Target audience comparison: PA Consulting vs Thoughtworks
| Dimension | PA Consulting | Thoughtworks |
|---|---|---|
| Best company size | Mid-market to enterprise | Enterprise |
| Best industries | Public sector, Defense, Healthcare | Financial services, Retail, Healthcare |
| Best use cases | AI planning for UK government departments., Health service AI adoption. | Build-or-buy decisions on AI developer tools., Data foundations before AI. |
| Typical project type | Multi-use-case advisory | Multi-use-case advisory |
PA Consulting vs Thoughtworks: pros and cons
| PA Consulting | |
|---|---|
| + | Long record with UK government and health clients |
| + | Design and engineering behind the advice |
| + | Partly owned by staff |
| - | Jacobs holds 65%, and one database reports a full acquisition in 2026 that we couldn't confirm |
| - | Advice usually comes packaged with delivery |
| - | Rates not published |
| Thoughtworks | |
|---|---|
| + | Tool opinions are public in its Technology Radar |
| + | Strong engineering judgment on build-or-buy |
| + | Data foundations expertise |
| - | Taken private by Apax in 2024 |
| - | Thin on regulation and governance |
| - | Advice leads naturally into delivery |
Who should choose PA Consulting?
A typical fit: AI planning for UK government departments.
Advice from teams that also design and build, strong in UK government. Minimum engagement is not publicly disclosed. Works best with clients in Public sector, Defense, Healthcare, Energy & utilities, Consumer.
Who should choose Thoughtworks?
A typical fit: build-or-buy decisions on AI developer tools.
Public Technology Radar and engineering-led build-or-buy advice. Minimum engagement is not publicly disclosed. Works best with clients in Financial services, Retail, Healthcare, Public sector.
Decision matrix: PA Consulting vs Thoughtworks
| Your situation | Recommended choice |
|---|---|
| You want advice with no build contract attached | Neither; write the build as a separate decision |
| Finance needs run costs before approving anything | Neither lists cost modeling; ask for a sample |
| Some of your use cases may be high-risk under the EU AI Act | Neither; add a governance specialist |
| You need an outside check on a system already built | Neither; use a dedicated auditor |
| You want the same firm to build what it recommends | Both can deliver |
| Your budget is at the lower end | Compare: PA Consulting (Not disclosed) vs Thoughtworks (Not disclosed) |
| You need advisers in many countries at once | Thoughtworks |
Use case fit: PA Consulting vs Thoughtworks
| Use case | PA Consulting fit | Thoughtworks fit | Winner |
|---|---|---|---|
| AI planning for UK government departments. | Strong | Limited | PA Consulting |
| Health service AI adoption. | Strong | Limited | PA Consulting |
| Build-or-buy decisions on AI developer tools. | Limited | Strong | Thoughtworks |
| Data foundations before AI. | Limited | Strong | Thoughtworks |
Verdict: PA Consulting vs Thoughtworks
PA Consulting (4.0/5) is the stronger overall choice for most AI Advisory projects. Advice from teams that also design and build, strong in UK government.
Thoughtworks (3.8/5) is worth a look if you need data foundations before AI. If your situation matches that, Thoughtworks is a competitive option.
Related comparisons
PA Consulting vs Thoughtworks FAQ
Is PA Consulting better than Thoughtworks?
PA Consulting (4.0/5) scores higher overall, but "better" depends on your use case. PA Consulting's strongest advantage: long record with UK government and health clients. Thoughtworks's strongest advantage: tool opinions are public in its Technology Radar.
How do PA Consulting and Thoughtworks differ in pricing?
PA Consulting's pricing: consulting fees; rates not published. Thoughtworks's pricing: time & materials; rates not published. Any hourly bands shown come from Clutch, not a published rate card, so a scoping call is still needed for a project quote.
Which is better for enterprise: PA Consulting or Thoughtworks?
Thoughtworks is the larger team and typically the better enterprise-scale choice. For very large programmes, verify team size and compliance coverage directly with each firm before shortlisting.
What are the main differences between PA Consulting and Thoughtworks?
PA Consulting's primary differentiator is: advice from teams that also design and build, strong in UK government. Thoughtworks's primary differentiator is: public Technology Radar and engineering-led build-or-buy advice. They also differ in team size (~3,900 vs ~10,000), minimum engagement (Not disclosed vs Not disclosed), and primary industries served (Public sector, Defense vs Financial services, Retail).
Verify all details directly with each firm before making a decision.