Office Chicago

NBC Tower, Suite 1600
455 N. Cityfront Plaza Drive
Chicago, IL 60611-5314
O 312.670.7444 | F 312.670.8301

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Directions to parking garage

For assistance with public transportation, please visit transitchicago.com.

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Overview

ORBA is headquartered in NBC Tower in downtown Chicago. Our team of dedicated professionals is committed to providing exceptional audit, tax and advisory 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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2025 Workplace Culture Excellence Award BDO Alliance USA
BEYOND THE TOP 100:FIRMS TO WATCH Accounting Today, 2014-2025 Rankings
2024LARGEST ACCOUNTING FIRMS Crain's Chicago Business, 2011-2024 Rankings
Top 200public accounting firms INSIDE Public Accounting, 2013-2024 Rankings
2024 Top WorkplacesCULTURE EXCELLENCE AWARD - EMPLOYEE WELL-BEING & PROFESSIONAL DEVELOPMENT Energage, 2021-2024 Rankings
2024Top Workplaces USA USA Today, 2024 Ranking
TOP WORKPLACES USA Energage, 2021-2023 Rankings
TOPWORKPLACES The Chicago Tribune 2010-2016; 2020-2024 Rankings
GREAT LAKESRegional Leader Accounting Today, 2012-2025 Rankings
over47 years Of High Performing Service To Clients In Chicago & Beyond

Professionals

Directors

Staff

News & Events

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Firm News

06.03.25

Cory Nielson, CPA, Joins ORBA Salt Lake City Office as an Audit and Assurance Group Director
SALT LAKE CITY — Ostrow Reisin Berk & Abrams, Ltd. (ORBA), one of the country’s largest full-service accounting, tax and advisory firms, recently announced the addition of Cory Nielson as an Audit and Assurance Group Director in its Salt Lake City office.

Chicago

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seminars & events

Guides

ORBA will gladly provide you with hard copies of the useful guides listed below. Select which guides you would like to receive and submit the form below.

  • Tax Pocket Guide
  • Tax Planning Guide
  • Records Retention Schedule
  • Auto, Travel & Business Log

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