Provider Membership
Last time updated: 7/21/26, 6:45 PM
About
The Oak Brook office was established after Crowe combined practices with the public accounting firm Hartley, McKenna, and Flood in 1986. In 2005, the Oak Brook office grew by adding PTW, a government and not-for-profit consulting and accounting firm. Since then, the office has continued to grow through expansion of services and industry expertise.
Today, more than 300 personnel are aligned to the Oak Brook office and provide service to a diverse client base, including Fortune 500 companies and state agencies, as well as some of the largest manufacturing and financial services companies in Illinois.
Videos
You can’t spell Crowe without WE. We asked our people to share… what makes Crowe a great place to work?
Newly appointed CEO Mark Baer and COO Brenda Torres discuss their priorities and what it means to serve our people, clients and communities.
An inside look at the culture of Crowe LLP from an Audit, Tax and Consulting new hire perspective.
Crowe named to Fortune 100 Best Company to Work For list
Frequently Asked Questions
When was Crowe founded?
Crowe was founded in 1986.
Which days is Crowe open?
Open on Monday, Tuesday, Wednesday, Thursday, Friday.
What are Crowe specialties?
Services for government clients, Services for manufacturing companies, Services for financial clients.
What are Crowe main services?
Audit and assurance services, Tax services, Consulting services.
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