Overview
ORBA’s Oak Brook Office is conveniently located in Regency Towers. Our team of dedicated professionals is committed to providing exceptional audit, tax and advisory services to businesses, individuals and not-for-profit organizations. Whether you’re a local entrepreneur, a mid-sized company or an established corporation, we’re here to support your financial success. Explore our comprehensive suite of services and contact us to discover how ORBA can become your trusted partner.
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Firm News
08.11.25
ORBA Ranked as a 2025 Top 200 Firm by INSIDE Public Accounting
CHICAGO — ORBA, one of Chicago’s largest public accounting firms, has once again been recognized as a 2025 IPA Top 200 Firm by INSIDE Public Accounting (IPA). This marks the eleventh time since 2013 that ORBA has made the list of the country’s top firms. In the IPA’s annual report, ORBA is ranked #113, climbing five spots higher than last year, and is the highest ranked of the six Illinois firms on the Top 200 list.