Columbia, MD
Withum Plus Columbia
As one of the top Maryland CPA firms, Withum helps corporations and nonprofits thrive by offering advisory, tax, audit, and assurance services to the Greater Baltimore business community. Our team can help you maintain compliance and understand ever-changing rules and regulations that impact your business. Withum is a top 25 national firm, focused on understanding the challenges each business faces, adding value through collaboration and working together to take action…plus a whole suite of advisory solutions that will level up your success. That’s the Power in the Plus!
Find Our Columbia Office
We moved! Beginning October 13th, 2025, please note our new address
10480, Little Patuxent Parkway,
Suite 1100,
Columbia, MD, 21044
Phone: (240) 798-8890
Partner in Charge: Scott Reddersen
Columbia Accounting and Advisory Service Specializations
Tax
Learn morePublic and Private Company Financial Statement Audits
Learn moreOutsourced Accounting Systems and Services
Learn moreCyber and Information Security Services
Learn moreSelf-Insured Health Plan Advisory
Learn moreMaryland State and Local Tax Updates
Do you or your organization operate in multiple states? Do you own property in a variety of states? Maryland State and Local Tax (SALT) laws are always changing and understanding the nuances of the states that you own or operate in is challenging. In these Maryland resources, you’ll find just a dash of the most up-to-date details on rules and regulations as state and local tax changes happen by state!
Industries We Focus on in Columbia
Withum in the Greater Baltimore Community
Withum team members show our dedication to the Greater Baltimore area outside of the office. Our team members live and work here. We are passionate about our community, spending time giving back, sponsoring and volunteering at events. We proudly support organizations such as the Maryland SPCA, Maryland Food Bank, A Wider Circle and more. Our commitment to these causes reflects a passion for making a positive impact in the lives of our neighbors and fostering a stronger, more vibrant community in Maryland.
Beyond the Columbia Office
- Inside Public Accounting Top 100 Firms - 22nd Largest Nationally
- Accounting Today Top 100 Firms - 22nd Largest Nationally
- Great Place to Work® – Fortune Best Workplaces for Parents and Women
- Vault Top 25 Accounting Firm
Withum Columbia in the News
Withum Expands to New Baltimore Location
BALTIMORE, MD. (August 1, 2023) – WithumSmith+Brown, PC (“Withum”), one of the top 25 public accounting and advisory firms in the country, announced today that the firm is expanding its […]
Partner in Charge
Scott Reddersen is a partner in charge of the Withum’s Washington, DC and Columbia, MD offices with over 15 years of experience serving high-net-worth families. His practice focus is on Tax and Private Client Services, while his expertise is in the Professional Services and Private Client Services industries. Scott works with families to understand their unique financial opportunities, challenges and goals. He helps them navigate current tax issues while developing long- term strategies that allow them to focus on what’s important to them.
