Professional-services firms are being reshaped by changes in capital, technology, delivery, regulation, talent and client economics. These developments are often discussed separately. The more interesting question is what happens when they collide inside real institutions.
My Professional Services Transformation Theory provides the broader explanation for these changes. The case studies provide the empirical layer underneath it. They examine actual transactions, strategic decisions, governance changes, operating-model shifts and institutional experiments to test how the theory plays out in practice.
These are therefore not company profiles or summaries of industry news. Each case study asks a more structural set of questions: What problem was the institution trying to solve? Why was the existing model becoming insufficient? What changed in its economics, governance or institutional design? And what can other firms and their boards learn from the outcome?
Together, the cases document an industry gradually moving away from a relatively coherent partnership model toward a much more diverse collection of institutional forms.
Start Here
If you are new to the research, these case studies provide a useful introduction to some of the major structural questions facing the profession.
Grant Thornton, CBIZ and the Public Company That Became Harder to Keep Public
CBIZ demonstrated for decades that institutional capital and regulated professional ownership could coexist. Its acquisition by Grant Thornton raises a harder question: whether the professional-services institution it built eventually became more complex than the public-company model around it.
Deloitte EMEA: The Quiet Centralization of a Global Partnership
Deloitte EMEA examines what happens when a federation of national partnerships increasingly requires pooled investment, common infrastructure and regional operating coordination. Formal ownership can remain decentralised while the economics underneath become progressively more integrated.
RSM and the Search for Platform Economics Without Private Equity
RSM provides a different experiment. Rather than using outside capital to force integration, it is attempting to create greater scale, common investment and multinational coordination while preserving partner ownership.
Crowe, KKR and the End of the Generational Contract
Crowe raises one of the most important questions created by private capital: what happens when the next generation of professionals is no longer the natural owner of the institution it is being asked to build?
EY, Wirecard and the Real Economics of Public-Interest Audit
Wirecard shows why the economics of audit cannot be understood through engagement margin alone. A relatively modest annual fee can create a liability, remediation and reputational tail lasting years after the engagement itself has disappeared.
Browse by Structural Question
Ownership, Capital and the Generational Contract
Private capital is changing more than ownership. It changes who receives value, who finances growth, who carries risk, how investment decisions are made and what future professionals are being asked to build.
The cases in this theme examine the different ways external capital is entering professional services, what it solves, and which new institutional questions it creates.
Case studies include:
- Grant Thornton, CBIZ and the Public Company That Became Harder to Keep Public
- EisnerAmper and the Test of the Second Ownership Cycle
- Crowe, KKR and the End of the Generational Contract
- Grant Thornton Australia and the Real Economics of Private Equity in Professional Services
- The Fragmentation of a Global Firm: How Private Equity Is Reshaping Grant Thornton
- Baker Tilly and Private Equity: When a Network Starts Becoming a Platform
- BDO’s Third Way
- Afileon: How Private Capital Enters a Protected Profession Without Owning It
- Xeinadin, Sumer and the Hidden Assumption Behind Accounting Roll-Ups
- WTS, EQT and the New Institutional Design of Tax
Economic Architecture and Client Economics
Not every client, service or business inside a professional-services firm follows the same economics.
As technology, regulation, shared infrastructure, global delivery and institutional overhead increase the fixed and step costs of operating large firms, the question of which work economically belongs inside which institution becomes increasingly important.
These case studies examine what happens when traditional service-line structures no longer provide an adequate picture of economic reality.
Case studies include:
- When Clients No Longer Fit the Economics of the Big Four
- Grant Thornton Australia and the Real Economics of Private Equity in Professional Services
- PwC, Vialto and the Private Equity Constraint Shift
- EY, Wirecard and the Real Economics of Public-Interest Audit
- WTS, EQT and the New Institutional Design of Tax
Networks, Platforms and Institutional Integration
The traditional global network was designed to coordinate independent partnerships. Increasingly, firms require something more.
AI, cybersecurity, delivery infrastructure, global clients, common technology and large investment requirements reward scale and integration. The result is a series of experiments in how far professional-services firms can centralise economically and operationally without becoming conventional corporations.
Case studies include:
- Deloitte EMEA: The Quiet Centralization of a Global Partnership
- RSM and the Search for Platform Economics Without Private Equity
- Forvis Mazars: One Brand, Two Firms
- The Fragmentation of a Global Firm: How Private Equity Is Reshaping Grant Thornton
- Baker Tilly and Private Equity: When a Network Starts Becoming a Platform
- BDO’s Third Way
- WTS, EQT and the New Institutional Design of Tax
Audit, Regulation and Institutional Trust
Audit sits inside the same firms as tax, consulting, managed services and technology-enabled businesses, but it follows fundamentally different economics.
Its value comes partly from professional independence and institutional trust. Its risk can extend far beyond the economics of an individual engagement. Its regulation also constrains ownership structures, technology alliances and the strategic freedom of the wider institution.
These cases examine what happens when the regulated trust function of the firm interacts with businesses following very different economic models.
Case studies include:
- EY, Wirecard and the Real Economics of Public-Interest Audit
- The $600 Million Failed EY Split: Project Everest
- Grant Thornton, CBIZ and the Public Company That Became Harder to Keep Public
- Grant Thornton Australia and the Real Economics of Private Equity in Professional Services
Break-Ups, Carve-Outs and Constraint Shifts
Separating a professional-services business can appear to offer strategic freedom. History suggests the reality is more complicated.
Businesses leaving partnerships lose some constraints but also lose infrastructure, shared capabilities and institutional support. They encounter new pressures from capital markets, lenders, standalone operating requirements and investors.
The relevant question is therefore rarely whether separation removes constraints. It is which constraint system replaces the old one.
Case studies include:
- The $600 Million Failed EY Split: Project Everest
- PwC’s Monday: How a $20bn Spin-Off Fell Apart
- Accenture: The Success Story That Was Never Meant to Happen
- PwC, Vialto and the Private Equity Constraint Shift
Talent, Partnership and Institutional Continuity
Professional-services firms have historically transferred not only ownership but client relationships, professional judgment and institutional responsibility from one generation to another.
Greater talent mobility, external capital and alternative ownership models increasingly challenge that mechanism. The question is not simply whether firms can retain employees. It is whether the economic proposition remains strong enough to produce the entrepreneurial behaviour, stewardship and long-term commitment on which these institutions have historically depended.
Case studies include:
- Crowe, KKR and the End of the Generational Contract
- EisnerAmper and the Test of the Second Ownership Cycle
- When the Firm No Longer Owns Its Talent: PwC vs Unity
- WTS, EQT and the New Institutional Design of Tax
From Cases to Theory
Individual cases explain what happened inside a particular institution. The more valuable insight often comes from comparing them.
A private-equity transaction at Grant Thornton can be compared with RSM’s attempt to integrate without outside capital. Deloitte EMEA can be compared with the two-part structure of Forvis Mazars. Vialto can be compared with Accenture. Crowe and EisnerAmper can be examined together to understand how external ownership changes the generational contract.
Patterns begin to emerge across firms that otherwise appear very different.
These patterns feed into my Professional Services Transformation Theory and the core frameworks I use to analyse the industry, including:
- Economic Reality
- The Two-Speed Firm
- The AI Cost Stack
- Platform Gravity
- The Professional Services Transformation Paradox
Together, the theory, frameworks and case studies examine the same underlying question from different directions:
Do the economics, governance and institutional design of professional-services firms still fit the organisations they are becoming?
From Research to the Boardroom
The purpose of this research is not to predict a single future model for professional services. Partnership, private capital, corporate ownership, integrated international partnerships and hybrid structures may all remain viable under different conditions.
The more immediate task for boards and senior leadership teams is to understand which structural pressures are already affecting their own institution, where existing management assumptions are becoming unreliable, and which strategic choices may become harder to reverse over time.
My advisory work applies the research through Future of Professional Services Board Sessions, Economic Reality Reviews, Economic Portfolio Architecture and Transformation Reality Reviews.
The objective is not to provide firms with another industry forecast. It is to help leadership teams understand what the transformation of the profession means for their own economics, governance, operating model and institutional design.