Top AI Strategy Consultants

QuantumBlack, AI by McKinsey vs Quantiphi: full comparison for 2026

Quick verdict

QuantumBlack, AI by McKinsey (4.6/5) edges ahead of Quantiphi (4.0/5) overall. QuantumBlack, AI by McKinsey is the better choice for large enterprises running AI as a CEO-level program. Quantiphi is the stronger option for companies committed to Google Cloud or AWS. The right choice depends on the size of your program, your budget, and whether you want the same firm to build what it recommends.

QuantumBlack, AI by McKinsey vs Quantiphi: head-to-head summary

Criterion QuantumBlack, AI by McKinsey Quantiphi
Founded 2009 2013
HQ London, UK (McKinsey HQ: New York, USA) Marlborough, USA
Team size 1,000+ 4,000
Rating 4.6 / 5 4.0 / 5
Primary differentiator Board-level strategy and change management backed by McKinsey's own AI engineering group Use-case discovery from a top-tier Google Cloud and AWS engineering partner
Pricing model Project fees set per engagement; rates not published Project and dedicated-team pricing; rates not published
Min. engagement Not disclosed Not disclosed
Primary tech stack Kedro, Vizro, AWS Google Cloud, AWS, NVIDIA
Industries served Banking & insurance, Healthcare & life sciences, Consumer & retail, Manufacturing, Energy, Public sector Healthcare, Financial services, Insurance, Media, Public sector, Retail

QuantumBlack, AI by McKinsey vs Quantiphi: overview

QuantumBlack, AI by McKinsey

QuantumBlack started in London in 2009 as an independent analytics firm and has been part of McKinsey & Company since 2015. McKinsey says it now has more than 1,000 technical practitioners, plus an R&D group, QuantumBlack Labs, of around 200 engineers, designers, and data scientists (per company website; independently unverifiable). A typical engagement pairs a strategy team that works with the chief executive and board with data scientists who build the first models, so the roadmap and the proof come from one firm. That access to the top of a company is the main reason to hire it. Price is the other side of it: fees follow McKinsey's own levels and are not published.

Quantiphi

Quantiphi was founded in 2013, is headquartered in Marlborough, Massachusetts, and has around 4,000 employees. It holds top partner tiers with Google Cloud, AWS, and NVIDIA, according to its own materials, and ISG named it a Leader for AI and machine learning services on Google Cloud in its 2024 Provider Lens report. Its strategy offer is mostly a front end to engineering: use-case discovery and roadmaps that lead into builds on those platforms. It makes most sense when the platform decision is already made.

Services and capabilities: QuantumBlack, AI by McKinsey vs Quantiphi

Capability QuantumBlack, AI by McKinsey Quantiphi
Readiness assessment ✗ ✓
Use-case prioritization ✓ ✓
TCO / ROI modeling ✗ ✗
AI governance & EU AI Act ✓ ✗
Build vs. buy advice ✗ ✗
Audit of live AI programs ✗ ✗
Change management ✓ ✗
Can build what it recommends ✓ ✓

Frameworks and platforms: QuantumBlack, AI by McKinsey vs Quantiphi

Framework / platform QuantumBlack, AI by McKinsey Quantiphi
EU AI Act N/A N/A
GDPR N/A N/A
NIST AI RMF N/A N/A
AWS ✓ ✓
Azure ✓ N/A
Google Cloud ✓ ✓
Databricks ✓ N/A
Snowflake N/A ✓

Pricing comparison: QuantumBlack, AI by McKinsey vs Quantiphi

Criterion QuantumBlack, AI by McKinsey Quantiphi
Minimum engagement Not disclosed Not disclosed
Engagement models Strategy & roadmap engagement, Delivery team, Ongoing advisory Strategy & roadmap engagement, Delivery team
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: QuantumBlack, AI by McKinsey vs Quantiphi

Dimension QuantumBlack, AI by McKinsey Quantiphi
Best company size Mid-market to enterprise Mid-market to enterprise
Best industries Banking & insurance, Healthcare & life sciences, Consumer & retail Healthcare, Financial services, Insurance
Best use cases Setting an enterprise AI agenda that the CEO and board will own., Redesigning operating models and roles around AI at a large company. AI roadmaps for companies already standardized on Google Cloud., Document and speech AI for healthcare and insurance.
Typical project type Strategy & roadmap engagement Strategy & roadmap engagement

QuantumBlack, AI by McKinsey vs Quantiphi: pros and cons

QuantumBlack, AI by McKinsey
+ Strategy teams work directly with chief executives and boards, which helps when AI spending needs sign-off at the very top
+ Change management and capability-building programs come from the same firm that wrote the strategy
+ Its own engineers build the first models, so feasibility gets tested before the roadmap is final
+ Maintains open-source tools (Kedro, Vizro) that show real engineering practice behind the advice
+ Industry depth across banking, health, consumer goods, and energy
- Fees at McKinsey levels put it out of reach for most mid-market budgets
- The firm that writes the roadmap also sells the follow-on work, so the plan may lean toward what McKinsey can deliver
- Large programs mix partners with junior consultants, so confirm who will actually do the work
Quantiphi
+ Deep Google Cloud expertise, confirmed by ISG's 2024 Provider Lens report
+ Moves from discovery to build without changing vendors
+ Large engineering bench for document, speech, and vision projects
+ Experience with healthcare and public-sector data
- Advice is shaped by its platform partnerships
- Little board-level or organizational change work
- Partner-tier claims come from its own recruiting material, with ISG's report as the independent check

Who should choose QuantumBlack, AI by McKinsey?

A typical fit: setting an enterprise AI agenda that the CEO and board will own.

Board-level strategy and change management backed by McKinsey's own AI engineering group. Minimum engagement is not publicly disclosed. Works best with clients in Banking & insurance, Healthcare & life sciences, Consumer & retail, Manufacturing, Energy, Public sector.

Who should choose Quantiphi?

A typical fit: AI roadmaps for companies already standardized on Google Cloud.

Use-case discovery from a top-tier Google Cloud and AWS engineering partner. Minimum engagement is not publicly disclosed. Works best with clients in Healthcare, Financial services, Insurance, Media, Public sector, Retail.

Decision matrix: QuantumBlack, AI by McKinsey vs Quantiphi

Your situation Recommended choice
Your board wants a costed, sequenced roadmap within a quarter Neither lists cost modeling; ask for a sample roadmap
You already run AI that is missing its targets Neither offers a separate audit; ask for a scoped review
Regulators will ask how each AI system is governed QuantumBlack, AI by McKinsey
AI will change roles and processes for many staff QuantumBlack, AI by McKinsey
You want the strategy firm to build the result too Both can deliver after the strategy
Your budget is at the lower end Compare: QuantumBlack, AI by McKinsey (Not disclosed) vs Quantiphi (Not disclosed)
You need a large team across many countries Quantiphi

Use case fit: QuantumBlack, AI by McKinsey vs Quantiphi

Use case QuantumBlack, AI by McKinsey fit Quantiphi fit Winner
Setting an enterprise AI agenda that the CEO and board will own. Strong Limited QuantumBlack, AI by McKinsey
Redesigning operating models and roles around AI at a large company. Strong Limited QuantumBlack, AI by McKinsey
AI roadmaps for companies already standardized on Google Cloud. Limited Strong Quantiphi
Document and speech AI for healthcare and insurance. Limited Strong Quantiphi

Verdict: QuantumBlack, AI by McKinsey vs Quantiphi

QuantumBlack, AI by McKinsey (4.6/5) is the stronger overall choice for most AI Strategy Consulting projects. Board-level strategy and change management backed by McKinsey's own AI engineering group.

Quantiphi (4.0/5) is worth a look if you need document and speech AI for healthcare and insurance. If your situation matches that, Quantiphi is a competitive option.

Related comparisons

QuantumBlack, AI by McKinsey vs Quantiphi FAQ

Is QuantumBlack, AI by McKinsey better than Quantiphi?

QuantumBlack, AI by McKinsey (4.6/5) scores higher overall, but "better" depends on your use case. QuantumBlack, AI by McKinsey's strongest advantage: strategy teams work directly with chief executives and boards, which helps when AI spending needs sign-off at the very top. Quantiphi's strongest advantage: deep Google Cloud expertise, confirmed by ISG's 2024 Provider Lens report.

How do QuantumBlack, AI by McKinsey and Quantiphi differ in pricing?

QuantumBlack, AI by McKinsey's pricing: project fees set per engagement; rates not published. Quantiphi's pricing: project and dedicated-team pricing; 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: QuantumBlack, AI by McKinsey or Quantiphi?

Quantiphi is the larger team and typically the better enterprise-scale choice. For very large programmes, verify team size and compliance coverage directly with each consultant before shortlisting.

What are the main differences between QuantumBlack, AI by McKinsey and Quantiphi?

QuantumBlack, AI by McKinsey's primary differentiator is: board-level strategy and change management backed by McKinsey's own AI engineering group. Quantiphi's primary differentiator is: use-case discovery from a top-tier Google Cloud and AWS engineering partner. They also differ in team size (1,000+ vs 4,000), minimum engagement (Not disclosed vs Not disclosed), and primary industries served (Banking & insurance, Healthcare & life sciences vs Healthcare, Financial services).

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