EY US
Ernst & Young LLP (EY US) is the US member firm of Big Four professional services network EY, delivering Assurance, Consulting, Tax, Strategy and Transactions, and managed services to enterprise clients across nine major verticals through 57,000 professionals in 70+ US locations.
- Company typePrivate
- Founded1989
- HeadquartersLondon, United Kingdom
- Headcount5,001–10,000
- GTM typeB2B
- OfferingServices
What EY US does
Ernst & Young LLP (EY US) is the US client-serving member firm of Ernst & Young Global Limited and one of the Big Four global professional services networks, providing Assurance, Consulting, Tax, Strategy and Transactions, and managed services to enterprise clients across Financial Services, Consumer Products and Retail, Energy and Resources, Private Equity, Technology Media and Telecommunications, Government and Public Sector, Health and Life Sciences, Industrials, and Family Enterprise segments. The firm employs approximately 57,000 professionals across 70+ US locations and is part of a global organization of 400,000+ people serving clients in over 150 countries through approximately 700 offices.
EY US operates an integrated AI and technology platform stack including EY.ai (unified AI platform), EY.ai EYQ (agentic AI platform, 2025 Gold Stevie Award winner for Generative AI Solution of the Year), EY Fabric (technology acceleration and data fabric platform), EY.ai Value Blueprints, the EY Quantum Lab, next-generation Digital Audit technology, EY wavespace innovation centers, EY Studio+ for customer experience transformation, EY Blockchain Platforms, and managed services offerings such as EY Comply for Financial Insights. These platforms are delivered alongside human-led advisory, assurance, and transaction work, and are supported by deep partnerships with Microsoft, Adobe, and Hult International Business School.
Revenue is generated through project-based professional services fees, retainer arrangements, and managed services contracts distributed across a vertical-segmented enterprise book of business; pricing is engagement-specific and not publicly disclosed. Go-to-market is conducted via senior-partner-led direct enterprise sales targeting C-suite executives, boards, and private equity sponsors, supplemented by content marketing, industry conferences, the Entrepreneur Of The Year program, and proprietary thought-leadership channels. The firm is privately held under a limited liability partnership structure and is not publicly traded.
EY US firmographics
Firmographics- Name
- EY US
- Legal name
- Ernst & Young LLP
- Website
- https://ey.com
- Company type
- Private
- Founded year
- 1989
- Operating status
- Operating
- Headcount range
- 5,001–10,000 employees
- Short description
- Ernst & Young LLP (EY US) is the US member firm of Big Four professional services network EY, delivering Assurance, Consulting, Tax, Strategy and Transactions, and managed services to enterprise clients across nine major verticals through 57,000 professionals in 70+ US locations.
- Ownership category
- akta.pro rank
Where EY US is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices28 records
Markets served
EY US business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Professional Services Fees: EY generates revenue through providing professional services including Assurance, Consulting, Tax, Strategy and Transactions, and related advisory services to enterprise clients. Revenue is generated through project-based engagements, retainer arrangements, and advisory fees.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels8 records
EY US product offering
Product offeringCore offering
EY US (Ernst & Young LLP) is a Big Four professional services firm delivering Assurance (audit, financial reporting, sustainability assurance), Consulting (analytics, customer experience, cybersecurity, finance, risk, supply chain, technology transformation), Tax (compliance, planning, controversy, technology), and Strategy and Transactions (M&A advisory, corporate finance, restructuring, due diligence, valuation) services to enterprise clients. The firm complements these services with proprietary AI platforms including EY.ai, EY Fabric, and EY Digital Audit, as well as innovation centers (EY wavespace) used to co-create transformation outcomes with clients.
Product overview
EY US offers a comprehensive professional services portfolio consisting of AI-powered platforms (EY.ai, EY Fabric), innovation centers (EY wavespace), and specialized solutions (EY Digital Audit, EY Studio+, EY Blockchain Platforms). The EY.ai platform serves as the unified AI foundation, augmented by EY Fabric for data integration, EY Studio+ for customer experience transformation, and EY Digital Audit for next-generation assurance. The portfolio includes strategic consulting through EY-Parthenon, blockchain platforms, and workforce development programs including EY Tech MBA, 360 Careers, and Career Path Accelerator. Together these products form an integrated ecosystem addressing strategy, transactions, transformation, and talent development across industries.
Differentiator
Problem solved
Functional benefit
Brands
- EY-Parthenon: Strategy consulting brand providing transformative strategy and transactions services to CEOs, boards and business leaders.
- EY wavespace
- EY Studio+
- EY.ai
- EY Tech MBA
Products and services
- EY.ai
Quantifiable outcome
- 30% increase in ticket sales for Miami Heat after digital transformation implementation
- +3 more outcomes
Companies that use EY US
Customer profileNamed customers11 records
Segments9 records
Ideal customer profiles7 records
EY US technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration2 records
AI capability9 records
Feature7 records
EY US partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core.
- AdobecoreEY partnered with Adobe to implement Microsoft Dynamics 365 CRM and Adobe Experience Cloud for Miami Heat's digital transformation. EY leveraged Adobe Analytics and Adobe Campaign to enable automated, multichannel marketing campaigns for clients.
- MicrosoftcoreEY collaborated with Microsoft to create digital solutions for clients including Microsoft 365 innovation under evolving regulations. EY uses Microsoft Dynamics 365 as part of its technology ecosystem for client engagements.
- Hult International Business SchoolcoreEY partnered with Hult International Business School to create the EY Tech MBA, the first-ever fully accredited corporate MBA available free to all EY's 400,000+ employees globally. The program offers technology, leadership and business skills development through innovative virtual learning.
- Hult International Business SchoolcoreEY collaborated with Hult International Business School to create the EY Career Path Accelerator program, providing accredited business and elective courses toward CPA licensure requirements. The program offers 10, 15, and 20 credit options at different price points.
Scale indicators5 records
Recent moves7 records
Expansion highlights6 records
EY US competitors and assessment
Company assessmentDirect peers
- Accenture: Global professional services firm competing directly with EY Consulting on technology transformation, digital, and managed services for enterprise clients, though Accenture lacks the audit heritage.
- Deloitte US: One of the Big Four and EY's closest direct competitor, offering the same four-line service stack (audit, consulting, tax, advisory) to enterprise and government clients across the US and globally.
- Booz Allen Hamilton: US-headquartered consulting firm with deep federal government and defense practices; directly comparable to EY's Government & Public Sector segment, particularly federal consulting.
- PwC US: Big Four direct peer with near-identical assurance, tax, and advisory offerings; competes head-to-head on Fortune 500 audits and large transformation mandates.
- KPMG US: Fourth member of the Big Four with overlapping audit, tax, and advisory services; a direct competitor on mid-to-large enterprise engagements across EY's primary verticals.
Broad incumbents
- Bain & Company: Top-tier strategy consultancy with deep private equity adjacency; overlaps with EY-Parthenon on strategy and transaction due diligence work for large corporates and PE funds.
- Capgemini: Global consulting and digital transformation firm with comparable technology, engineering, and industry practice areas; overlaps with EY Consulting on large-scale digital implementations.
- McKinsey & Company: Elite strategy consulting incumbent; EY-Parthenon explicitly competes with McKinsey for CEO/board-level strategy mandates, but McKinsey remains the category-defining brand.
- IBM Consulting: Large technology consultancy with deep AI, cloud, and enterprise systems capabilities; competes with EY's Technology Transformation and EY.ai practices, often as a systems integration partner.
- Boston Consulting Group: Global strategy consultancy with comparable transformation, technology, and industry practice areas; competes with EY on cross-functional transformation engagements.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat7 records
Key risks6 records
Key highlights7 records
Customer concentration
EY US social profiles
Digital presenceEY US compliance and trust
Trust signalCompliance1 record
EY US financial estimates
Financial estimateRevenue estimate
Valuation estimate
EY US leadership team
Management profileNumber of profiles
Profiles17 records
EY US subsidiaries and ownership
Company hierarchySubsidiaries3 records
EY US funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
EY US M&A and investment
M&A and investmentM&A1 record
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about EY US
What does EY US do?
EY US (Ernst & Young LLP) is a Big Four professional services firm delivering Assurance (audit, financial reporting, sustainability assurance), Consulting (analytics, customer experience, cybersecurity, finance, risk, supply chain, technology transformation), Tax (compliance, planning, controversy, technology), and Strategy and Transactions (M&A advisory, corporate finance, restructuring, due diligence, valuation) services to enterprise clients. The firm complements these services with proprietary AI platforms including EY.ai, EY Fabric, and EY Digital Audit, as well as innovation centers (EY wavespace) used to co-create transformation outcomes with clients.
Is EY US a public or private company?
EY US is a private company. It is classified as unknown and is currently operating.
When was EY US founded?
EY US was founded in 1989. It employs 5,001 to 10,000 people.
Where is EY US based?
EY US is headquartered in London, United Kingdom, in the Europe region.
How does EY US make money?
One revenue line is on record: professional Services Fees.
Who are EY US's main competitors?
Direct peers on record are Accenture, Deloitte US, Booz Allen Hamilton, PwC US and KPMG US. Broad incumbents are Bain & Company, Capgemini, McKinsey & Company, IBM Consulting and Boston Consulting Group.
Does EY US have an API?
No public API is recorded for EY US.