Citrin Cooperman Expands Midwest Presence with Acquisition of ORBA

NEW YORK, NY – September 4, 2025 — Citrin Cooperman Advisors LLC, the premier professional services provider for private, middle market businesses and high net-worth individuals, today announced it has entered into an agreement to acquire substantially all the assets of Ostrow Reisin Berk & Abrams, Ltd. (ORBA), a prominent Chicago-based accounting and advisory firm with offices in downtown Chicago, Oak Brook, IL, and Salt Lake City, UT.

The addition of ORBA represents a significant milestone for Citrin Cooperman as it expands its footprint in the Midwest and enhances its capabilities across a wide range of industries, including manufacturing & distribution, professional services, sports & entertainment, real estate, and other privately held businesses. ORBA joins Citrin Cooperman with 15 partners and over 150 professionals.

“This is a landmark milestone in Citrin Cooperman’s continued growth,” said Alan Badey, CEO of Citrin Cooperman Advisors LLC. “ORBA has an outstanding reputation built on decades of excellence, a deep group of talented professionals with trusted client relationships, and a culture that mirrors our own. Together, we are creating a powerful Midwest region that expands opportunities for our people and our clients. We are thrilled to have the ORBA team join Citrin Cooperman and make us Better, Together!”

Founded in 1977, ORBA has long been recognized as one of Chicago’s most respected professional services firms, providing tax, accounting, and advisory services to entrepreneurs, privately held companies, nonprofit organizations, and high-net-worth individuals. By joining Citrin Cooperman, ORBA’s clients will gain access to expanded resources and advanced specialty services.

“Joining Citrin Cooperman marks an exciting new chapter for ORBA,” said Joseph Odzer, CEO of ORBA. “We are proud of the firm we’ve built over nearly five decades, and this combination allows us to honor that legacy while unlocking new opportunities. Our clients will continue to receive the high-touch, personalized service they trust, with the added benefit of Citrin Cooperman’s expansive expertise and resources. Our professionals will have tremendous opportunities for career success in a culture so closely aligned with what ORBA has established.”

Allan Koltin, CEO of Koltin Consulting Group, who advised both firms on the transaction, added, “The synergies between Citrin Cooperman and ORBA are clear and compelling. Both firms are built on collaboration, entrepreneurial spirit, and a client-first mindset, positioning the combined firm as a highly attractive destination for top talent and clients alike.”

This transaction reinforces Citrin Cooperman’s strategic vision of thoughtful expansion by aligning with firms that share its commitment to excellence, collaboration, and client-first service while having an extremely strong cultural fit. The firm has completed over 30 acquisitions since 2019, reinforcing its position as one of the most active and respected acquirers in the profession.

As is typical for firms that operate in alternative practice structures, the transaction will consist of Citrin Cooperman Advisors LLC acquiring certain non-attest assets and Citrin Cooperman & Company, LLP acquiring certain attest assets of ORBA.

The transaction is expected to close in October 2025.

About ORBA

Ostrow Reisin Berk & Abrams, Ltd. (ORBA) is a Chicago-based accounting, tax, and advisory firm serving privately held businesses, nonprofit organizations, and high-net-worth individuals since 1977. Known for its personalized approach and deep industry expertise, ORBA has consistently been ranked among the top accounting firms in the Midwest.

About Citrin Cooperman

Citrin Cooperman is the nation’s premier accounting and advisory provider for private, middle-market businesses and high net-worth individuals. Consistently recognized as a great place to work and among the fastest growing top 20 U.S. firms, our more than 3,300 professionals focus on what counts to positively impact the lives of our people, clients, and communities. Our commitment to outstanding client service, professional excellence and deep industry expertise underpins a strategic growth approach that powers our dynamic, innovative culture.

Citrin Cooperman is an independent member firm of the Moore North America, Inc. (MNA) Association, which is itself a regional member of Moore Global Network Limited (MGNL), one of the world’s leading accountancy and advisory networks with over 37,000 professionals across 227 independent firms working in more than 114 countries. All the firms associated with MNA are independently owned and managed entities. Their membership in, or association with, MNA should not be construed as constituting or implying any partnership between them.

“Citrin Cooperman” is the brand under which Citrin Cooperman & Company, LLP, and Citrin Cooperman Advisors LLC serve clients’ business needs in an alternative practice structure in accordance with the AICPA’s Code of Professional Conduct and applicable law, regulations, and professional standards. Citrin Cooperman & Company, LLP, a licensed independent CPA firm, provides attest services and Citrin Cooperman Advisors LLC provides business advisory and nonattest services. Learn more about Citrin Cooperman at www.citrincooperman.com.

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For media inquiries, please contact:
Dan Ginsburg, Principal, Corporate Communications Leader
Citrin Cooperman Advisors LLC
332-278-3553
dginsburg@citrincooperman.com