KPMG vs Sia Partners: full comparison for 2026
Quick verdict
KPMG (4.6/5) edges ahead of Sia Partners (4.1/5) overall. KPMG is the better choice for regulated firms needing audit-grade AI governance. Sia Partners is the stronger option for utilities and insurers wanting regulatory-minded advice. The right choice depends on how independent you need the advice to be, your regulatory exposure, and your budget.
KPMG vs Sia Partners: head-to-head summary
| Criterion | KPMG | Sia Partners |
|---|---|---|
| Founded | 1987 | 1999 |
| HQ | London, UK (KPMG International) | Paris, France |
| Team size | 275,000+ | ~3,500 |
| Rating | 4.6 / 5 | 4.1 / 5 |
| Primary differentiator | Governance and assurance depth, backed by its own ISO/IEC 42001-certified AI management system | Sector regulatory practices applied to AI governance, plus its own Heka.ai tools |
| Pricing model | Engagement fees per scope; rates not published | Consulting fees; rates not published |
| Min. engagement | Not disclosed | Not disclosed |
| Primary tech stack | EU AI Act, ISO/IEC 42001, NIST AI RMF | EU AI Act, GDPR, DORA |
| Industries served | Banking, Insurance, Public sector, Healthcare, Energy, Manufacturing | Energy & utilities, Banking, Insurance, Public sector, Telecom |
KPMG vs Sia Partners: overview
KPMG
KPMG was formed in 1987 through the merger of Peat Marwick International and Klynveld Main Goerdeler, and its member firms employ around 275,000 people. In December 2025 KPMG International announced ISO/IEC 42001 certification for its own AI management system, audited by Schellman; member firms in Australia, Spain, India, and the US had certified earlier. Its Trusted AI approach covers governance design, risk classification under the EU AI Act, controls testing, and assurance. For a CFO or chief risk officer who needs advice that an audit committee will accept, few firms have a larger bench. Auditor-independence rules can bar it from advising its own audit clients. Check that first.
Sia Partners
Founded in Paris in 1999, Sia Partners now has roughly 3,500 consultants in about 20 countries. Its regulatory practices in energy, utilities, banking, and insurance carry over naturally to AI governance. The firm also sells Heka.ai, a catalog of AI software products, which can speed early results but makes its tool advice less neutral. It suits companies that want management consultants first and technologists second.
Services and capabilities: KPMG vs Sia Partners
| Capability | KPMG | Sia Partners |
|---|---|---|
| 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: KPMG vs Sia Partners
| Framework / platform | KPMG | Sia Partners |
|---|---|---|
| EU AI Act | ✓ | ✓ |
| GDPR | ✓ | ✓ |
| DORA | ✓ | ✓ |
| NIST AI RMF | ✓ | N/A |
| ISO/IEC 42001 | ✓ | N/A |
| Azure | ✓ | N/A |
| AWS | N/A | N/A |
| Google Cloud | N/A | N/A |
Pricing comparison: KPMG vs Sia Partners
| Criterion | KPMG | Sia Partners |
|---|---|---|
| Minimum engagement | Not disclosed | Not disclosed |
| Engagement models | Fixed-scope assessment, Multi-use-case advisory, Audit or certification, Delivery team | Fixed-scope assessment, Multi-use-case advisory, Ongoing advisory |
| Rate transparency | Not public | Not public |
| Price tier | Mid-market | Mid-market |
Target audience comparison: KPMG vs Sia Partners
| Dimension | KPMG | Sia Partners |
|---|---|---|
| Best company size | Enterprise | Mid-market to enterprise |
| Best industries | Banking, Insurance, Public sector | Energy & utilities, Banking, Insurance |
| Best use cases | Designing an AI governance framework that an audit committee will sign off., Classifying an AI portfolio under the EU AI Act across several countries. | AI governance for a regulated utility., DORA and AI Act planning at an insurer. |
| Typical project type | Fixed-scope assessment | Fixed-scope assessment |
KPMG vs Sia Partners: pros and cons
| KPMG | |
|---|---|
| + | Runs its own certified AI management system, so it advises from first-hand experience of ISO/IEC 42001 |
| + | Risk, audit, and regulatory specialists work in one network |
| + | Can carry governance work across dozens of countries |
| + | Assurance work is set up to satisfy audit committees and regulators |
| - | Auditor-independence rules may stop it advising its own audit clients |
| - | Fees and team sizes suit large organizations more than mid-size ones |
| - | The same network sells implementation, so ask how advice and delivery are separated |
| Sia Partners | |
|---|---|
| + | Long regulatory experience in energy and finance |
| + | Change management is part of the offer |
| + | Ready-made tools for early wins |
| - | May favor its own Heka.ai products |
| - | Limited engineering depth for custom work |
| - | Smaller US presence |
Who should choose KPMG?
A typical fit: designing an AI governance framework that an audit committee will sign off.
Governance and assurance depth, backed by its own ISO/IEC 42001-certified AI management system. Minimum engagement is not publicly disclosed. Works best with clients in Banking, Insurance, Public sector, Healthcare, Energy, Manufacturing.
Who should choose Sia Partners?
A typical fit: AI governance for a regulated utility.
Sector regulatory practices applied to AI governance, plus its own Heka.ai tools. Minimum engagement is not publicly disclosed. Works best with clients in Energy & utilities, Banking, Insurance, Public sector, Telecom.
Decision matrix: KPMG vs Sia Partners
| Your situation | Recommended choice |
|---|---|
| You want advice with no build contract attached | Sia Partners |
| Finance needs run costs before approving anything | KPMG |
| Some of your use cases may be high-risk under the EU AI Act | Both cover AI Act classification |
| You need an outside check on a system already built | KPMG |
| You want the same firm to build what it recommends | KPMG |
| Your budget is at the lower end | Compare: KPMG (Not disclosed) vs Sia Partners (Not disclosed) |
| You need advisers in many countries at once | KPMG |
Use case fit: KPMG vs Sia Partners
| Use case | KPMG fit | Sia Partners fit | Winner |
|---|---|---|---|
| Designing an AI governance framework that an audit committee will sign off. | Strong | Limited | KPMG |
| Classifying an AI portfolio under the EU AI Act across several countries. | Strong | Limited | KPMG |
| AI governance for a regulated utility. | Limited | Strong | Sia Partners |
| DORA and AI Act planning at an insurer. | Limited | Strong | Sia Partners |
Verdict: KPMG vs Sia Partners
KPMG (4.6/5) is the stronger overall choice for most AI Advisory projects. Governance and assurance depth, backed by its own ISO/IEC 42001-certified AI management system.
Sia Partners (4.1/5) is worth a look if you need DORA and AI Act planning at an insurer. If your situation matches that, Sia Partners is a competitive option.
Related comparisons
KPMG vs Sia Partners FAQ
Is KPMG better than Sia Partners?
KPMG (4.6/5) scores higher overall, but "better" depends on your use case. KPMG's strongest advantage: runs its own certified AI management system, so it advises from first-hand experience of ISO/IEC 42001. Sia Partners's strongest advantage: long regulatory experience in energy and finance.
How do KPMG and Sia Partners differ in pricing?
KPMG's pricing: engagement fees per scope; rates not published. Sia Partners's pricing: consulting fees; 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: KPMG or Sia Partners?
KPMG 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 KPMG and Sia Partners?
KPMG's primary differentiator is: governance and assurance depth, backed by its own ISO/IEC 42001-certified AI management system. Sia Partners's primary differentiator is: sector regulatory practices applied to AI governance, plus its own Heka.ai tools. They also differ in team size (275,000+ vs ~3,500), minimum engagement (Not disclosed vs Not disclosed), and primary industries served (Banking, Insurance vs Energy & utilities, Banking).
Verify all details directly with each firm before making a decision.