Parsippany, NJ, January 21, 2026 —SAX, a top 75 national accounting, tax, and advisory firm, is pleased to announce its acquisition of Owen J. Flanagan & Co. (“OJF”), effective January 22, 2026. This strengthens SAX’s capabilities across attest, tax, consulting, and advisory services, while preserving the personalized client service that has defined OJF for nearly five decades.
Founded in 1977, OJF has built a strong reputation for its deep expertise in auditing and accounting, serving a wide range of clients from tax-exempt organizations—including private foundations and public charities—to for-profit businesses, high-net-worth individuals, estates, and trusts. By joining forces, SAX and OJF will broaden their service offerings, provide greater continuity and resources for the future, and create expanded opportunities for both clients and professional staff.
“This acquisition reflects our commitment to growth while staying true to our values of respect, integrity, commitment, excellence, and stewardship,” said Joseph Damiano, CEO of SAX. “Owen J. Flanagan & Co. has built an outstanding legacy of trust and excellence over nearly 50 years, and their culture aligns seamlessly with ours. We’re thrilled to welcome their team into the SAX family.”
John Corcoran, Partner of OJF, commented: “Since 1977, our mission has been to provide the highest level of service with personal attention and care. Partnering with SAX ensures that our clients will benefit from expanded resources and expertise, while continuing to receive the same trusted guidance from the people who know them best.”
Kevin Sunkel, Partner of OJF, added: “This is an exciting new chapter for our firm, our clients, and our team. By joining with SAX, we are preserving the close-knit relationships and continuity our clients value, while enhancing our ability to serve their evolving needs well into the future.”
Joe Tarasco of Accountants Advisory Group advised both parties on the transaction.
This marks SAX’S 2ND acquisition of the year, bringing the firm to 73 partners, 432 total employees, and over $4.6 billion in AUM, with a presence across five offices in New Jersey, New York, and Mumbai, India, as well as a remote workforce spanning 27 U.S. states. It also represents the 4TH transaction since SAX’s recent minority investment from Cobepa, an independent investment company. The Cobepa partnership continues to fuel SAX’s strategic growth trajectory—accelerating East Coast expansion, enhancing service capabilities, and fostering innovation—while the firm remains proudly independent.
About SAX
SAX is a Top 75 accounting, tax, and advisory firm that serves the unique needs of privately held companies, family-owned businesses, nonprofit organizations, and high-net-worth individuals. With offices strategically located in Parsippany, NJ, Ewing, NJ, Morganville, NJ, New York City, NY, and Mumbai, India, SAX offers specialized expertise that benefits clients across its largest vertical markets. The firm’s advisory services extend beyond traditional accounting and tax offerings, encompassing Wealth Management, Cybersecurity and Managed IT, Investment Banking, Transaction Advisory, HR Consulting, Valuation, and Forensic & Litigation. SAX has garnered national recognition and has been consistently listed among the Top Accounting Firms by NJBIZ, INSIDE Public Accounting, Accounting Today, and Forbes.
“Sax” is the brand name under which Sax LLP and Sax Advisory Group LLC and its subsidiary entities provide professional services. Sax LLP and Sax Advisory Group LLC (and its subsidiary entities) practice as an alternative practice structure in accordance with the AICPA Code of Professional Conduct and applicable law, regulations and professional standards. Sax LLP is a licensed independent CPA firm that provides attest services to its clients, and Sax Advisory Group LLC and its subsidiary entities provide tax and business consulting services to their clients. Sax Advisory Group LLC and its subsidiary entities are not licensed CPA firms.