Grant Thornton Advisors has agreed to acquire CBIZ, Inc. in a transaction with an enterprise value of approximately $5 billion. The deal was announced on July 29, 2026, and is expected to close in the fourth quarter of 2026, subject to CBIZ shareholder approval, regulatory approvals and other closing conditions.
Under the agreement, CBIZ shareholders are expected to receive $55 in cash for each CBIZ share they own if the transaction is completed.
After closing, CBIZ is expected to stop being a publicly traded company, while its main professional-services business will become part of Grant Thornton’s broader platform.
The transaction is significant for the accounting, tax, advisory and professional-services industry because it would substantially increase Grant Thornton’s scale in the U.S.
Key Deal Snapshot
| Deal Detail | Information |
| Acquirer | Grant Thornton Advisors LLC |
| Acquirer Country | USA |
| Target | CBIZ, Inc. (NYSE:CBZ) |
| Industry | Professional Services / Accounting, Tax & Advisory |
| Deal Type | Acquisition |
| Announcement Date | July 29, 2026 |
| Deal Value | Approximately $5 billion enterprise value |
| Consideration | All Cash |
| Offer Price | $55 per CBIZ share |
| CBIZ Ticker | NYSE: CBZ |
| Financial Partner | New Mountain Capital |
| Expected Closing | Q4 2026 |
| CBIZ Shareholder Meeting | October 27, 2026 |
| Benefits & Insurance Business | Planned to become a separate company |
| Post-Deal CBIZ Status | Expected to become privately held and cease NYSE trading |
Grant Thornton Company Introduction
Grant Thornton is a global professional-services organization that provides services such as audit and assurance, tax, advisory and consulting.
In the U.S., Grant Thornton operates through specialized entities. Grant Thornton LLP provides audit and assurance services, while Grant Thornton Advisors LLC focuses on non-attest services such as tax and advisory.
The Grant Thornton global platform has a presence across regions including the Americas, Europe, the Middle East and Asia-Pacific.
According to Grant Thornton, after the CBIZ transaction, its multinational platform could reach approximately $7.5 billion in revenue and more than 34,500 professionals.
CBIZ Company Introduction
CBIZ is a U.S.-based professional-services company that mainly serves middle-market businesses.
Its major business areas include:
- Accounting
- Tax
- Advisory
- Benefits
- Insurance
- Technology
CBIZ has more than 9,500 team members and more than 140 locations, according to the company.
Before the proposed acquisition, CBIZ was a publicly traded company listed on the New York Stock Exchange under the ticker CBZ.
Why Is Grant Thornton Acquiring CBIZ?
The main objective of the transaction is to expand Grant Thornton’s U.S. scale and service capabilities.
CBIZ has a large U.S. client base, particularly among middle-market businesses, along with accounting and advisory capabilities. Grant Thornton already has a multinational professional-services platform.
Combining the two businesses would give Grant Thornton access to a larger client network and a broader pool of professionals.
What Does the $5 Billion Deal Mean?
The transaction has an announced enterprise value of approximately $5 billion.
It is important to understand that enterprise value and the total amount of cash ultimately received by shareholders are not exactly the same thing.
Under the merger agreement, CBIZ shareholders are expected to receive $55 in cash per eligible CBIZ share if the transaction closes.
Once the transaction is completed, CBIZ is expected to become a wholly owned subsidiary of Grant Thornton Advisors and its shares are expected to stop trading on the NYSE.
Why Will CBIZ Shareholders Receive $55 Per Share?
Under the agreement, Grant Thornton will pay $55 in cash for each eligible CBIZ common share.
Grant Thornton said that the $55 offer represented approximately a 54% premium to CBIZ’s 30-day volume-weighted average share price at the time of the announcement.
In simple terms, the proposed transaction price was substantially above CBIZ’s average market trading price over that period.
However, the transaction has not yet closed. Shareholders will receive the cash only if the merger is completed and the required conditions are satisfied.
What Is New Mountain Capital’s Role?
New Mountain Capital is an important financial partner in the transaction.
New Mountain Capital had previously invested in Grant Thornton Advisors and is expected to provide additional equity support for the CBIZ transaction.
New Mountain Capital will also support the planned standalone company that will contain CBIZ’s Benefits & Insurance Services business.
The structure can therefore be understood as:
Grant Thornton → Acquires CBIZ’s main professional-services business
New Mountain Capital → Supports the separated Benefits & Insurance business
What Will Happen to CBIZ’s Benefits & Insurance Business?
This is one of the most important parts of the transaction.
Grant Thornton is not simply taking the entire existing CBIZ business into its organization.
CBIZ’s Benefits & Insurance Services segment is planned to become a separate standalone company.
This business includes areas such as:
- Employee Benefits
- Retirement Services
- Property & Casualty
- Human Capital
- Related advisory services
CBIZ’s SEC filing indicated that this segment had more than 1,600 professionals and more than $400 million in revenue.
Therefore, the CBIZ business that eventually becomes part of Grant Thornton will not be exactly the same as the entire CBIZ business that exists today.
What Will Grant Thornton Gain From CBIZ?
The acquisition would give Grant Thornton several additional capabilities.
Larger U.S. Client Base
CBIZ has a large network of U.S. middle-market clients.
Grant Thornton could combine these client relationships with its broader professional-services platform.
Accounting and Tax Capabilities
CBIZ’s accounting and tax business complements Grant Thornton’s existing professional-services capabilities.
Advisory Services
Both companies have significant advisory and consulting-related operations. Combining these businesses would increase the scale of the overall platform.
Industry Expertise
CBIZ serves businesses across several industries. This would add additional industry knowledge and client relationships to Grant Thornton’s platform.
Why Are AI and Technology Important to This Deal?
AI and automation are becoming increasingly important in professional services.
Grant Thornton had already announced plans to invest approximately $1 billion in AI and advanced technologies.
Following the CBIZ transaction, Grant Thornton expects to have a larger client base through which these technology capabilities can be deployed.
AI can be used in professional services for areas such as:
- Data analysis
- Tax research
- Financial reporting
- Process automation
- Business analytics
- Advisory work
Therefore, the acquisition is not only about expanding traditional accounting and advisory services. Technology and AI are also part of Grant Thornton’s broader growth strategy.
How Large Could the Combined Platform Become?
According to Grant Thornton’s estimates, after the transaction its multinational platform could have:
| Metric | Expected Figure |
| Revenue | Nearly $7.5 billion |
| Professionals | More than 34,500 |
| Geographic Presence | 20+ countries and territories |
| U.S. Annual Revenue | More than $5 billion |
| Expected U.S. Position | Fifth-largest professional-services, tax and advisory provider |
These are Grant Thornton’s projected figures for the combined platform. They should not be interpreted as CBIZ’s standalone financial figures.
CBIZ’s Financial Position Before the Deal
CBIZ reported approximately $2.76 billion in total revenue in 2025.
Its major segments included:
| Segment | 2025 Revenue |
| Financial Services | Approximately $2.30 billion |
| Benefits & Insurance Services | Approximately $410 million |
| Total Revenue | Approximately $2.76 billion |
During the first half of 2026, CBIZ reported approximately $1.531 billion in revenue and around $171 million in net income.
These figures represent CBIZ’s standalone business before the proposed acquisition closes.
CBIZ Was Also Expanding Before the Acquisition
An interesting point is that CBIZ had been pursuing its own expansion before the Grant Thornton transaction.
In June 2026, CBIZ completed the acquisition of BINDZ Consulting, an India-based professional-services company.
CBIZ said the acquisition added more than 250 India-based professionals and strengthened its global delivery capabilities.
This shows that CBIZ was also expanding its professional-services and international capabilities before agreeing to the Grant Thornton transaction.
Was CBIZ Looking to Sell the Company?
According to information filed by CBIZ with the SEC, the company said it was not actively looking to sell itself before receiving the proposal from Grant Thornton Advisors and New Mountain Capital.
After receiving the proposal, the CBIZ board evaluated the transaction with the assistance of financial and legal advisers.
The board considered the terms of the proposed transaction as well as other alternatives available to the company.
Did CBIZ Have an Opportunity to Find Another Buyer?
Yes.
The merger agreement included a go-shop provision.
This provision allowed CBIZ, for a specified period, to actively seek and consider alternative acquisition proposals from other potential buyers.
The go-shop period ended on August 27, 2026.
This means that signing the merger agreement did not immediately make the transaction final.
Is the Deal Completed?
As of September 29, 2026, the transaction has not yet closed.
CBIZ filed its definitive proxy statement with the SEC on September 21, 2026.
A special meeting of CBIZ shareholders is scheduled for October 27, 2026, when shareholders are expected to vote on the proposal to adopt the merger agreement.
After the shareholder vote, the transaction would still need to satisfy the required regulatory and other closing conditions.
The process can therefore be understood as:
Deal Announcement → SEC Filing → Shareholder Vote → Regulatory & Closing Conditions → Expected Q4 2026 Closing
What Could Happen to CBIZ Employees?
Until the transaction closes, Grant Thornton and CBIZ are expected to continue operating as separate companies.
CBIZ has communicated that employees’ day-to-day responsibilities and client work would continue normally before closing.
After the transaction closes, the companies will need to integrate their operations, which could result in organizational changes. However, a complete final post-closing organizational structure has not been publicly announced.
Employees in the Benefits & Insurance business are expected to become part of the planned standalone company because that business is being separated from the main CBIZ transaction.
Why Is This Deal Important for the Professional-Services Industry?
The transaction is an example of consolidation in the professional-services industry.
For large professional-services firms, greater scale can provide access to:
- A larger client base
- More professionals and specialists
- Additional industry expertise
- Greater technology investment
- AI capabilities
- Wider geographic coverage
- More opportunities to offer multiple services to clients
Grant Thornton has described the CBIZ transaction as an important part of its U.S. growth strategy.
Deal Analysis in Simple Terms
The transaction can be understood through three main points.
1. Grant Thornton Is Expanding Its U.S. Business
CBIZ’s large U.S. professional-services operation is expected to become part of Grant Thornton’s existing platform. This would increase Grant Thornton’s U.S. scale and client network.
2. CBIZ’s Business Is Being Split
CBIZ’s entire business will not simply move into Grant Thornton. Its Benefits & Insurance Services business is planned to become a separate standalone company.
3. AI and Technology Are Part of the Strategy
Grant Thornton is already planning significant investment in AI and advanced technology. CBIZ’s client network and professional-services capabilities would provide a larger platform for these technologies.
Sources: Grant Thornton official announcement; CBIZ Investor Relations; SEC merger and definitive proxy filings; CBIZ financial filings.
