Eisner LLP and Amper, Politziner & Mattia, LLP Combine to Form the Preeminent Accounting, Tax and Business Advisory Firm in the Northeast

New York, N.Y. and Edison, N.J.  —EisnerAmper LLP becomes the 14th largest accounting firm in the U.S., with broadened practice areas and an expanded regional footprint. 

Eisner LLP and Amper, Politziner & Mattia LLP announced today that they have combined their practices to form EisnerAmper LLP.  The newly formed entity will be the 14th largest accounting firm in the United States and the leading regional firm in the Northeast, with more than $250 million in annual revenue.   

Combined, EisnerAmper is the premier regional accounting firm in the New York-New Jersey-Philadelphia corridor, with more than 1200 staff, including 170 partners.  Its principal practice groups provide a variety of accounting, tax and other professional services to closely-held and publicly traded companies, financial institutions, and high net worth individuals and families.  EisnerAmper’s core expertise extends to the financial services industry, technology, life and health sciences, software, clean tech, real estate, healthcare, manufacturing and distribution, as well as sports, media, entertainment and others.  The firm is also the nation’s 10th largest auditor of SEC registrants.

“This combination is the most important and exciting development since the founding of our respective firms and it is hard to imagine two firms that represent a better strategic and cultural fit,” said EisnerAmper’s Charly Weinstein. “Given our complementary strengths in practice areas and regional reach, together with the combined knowledge of our talented professionals, EisnerAmper is exceptionally well positioned to continue to provide our clients with the highest level of expertise and service.”  EisnerAmper’s Howard Cohen added, “Our firms share this common vision and strategy, and we look forward to deploying our combined resources and expertise to meet the increasingly complex accounting and business advisory needs of our clients throughout the Northeast and beyond.”

Expanded Services for an Evolving Business Environment 

The firm’s expanded resources and expertise will benefit clients that face the challenges of a rapidly changing regulatory landscape, new taxation initiatives, and a volatile and competitive global business environment.  EisnerAmper provides a broad array of professional services that address this changing competitive environment, while maintaining the personalized, quality service and relationships that its clients expect and value.   
EisnerAmper presents a unique combination of financial expertise in one organization. The firm offers comprehensive audit, tax and business advisory services for the insurance, banking and alternative finance markets (including hedge funds, private equity, venture capital funds and broker-dealers).

Beyond accounting, audit and tax, EisnerAmper’s advisory services include enterprise risk management, mergers and acquisitions, business and asset valuation, debt financing, internal audit, forensic accounting and litigation consulting, reorganization and insolvency and international expansion. Clients of the firm have access to a deep pool of talented professionals with expertise in many industries and practice areas, who can help clients address complex accounting, tax and compliance issues.

EisnerAmper will serve clients from its 11 offices which are located in New York City and its suburbs, across New Jersey, in Philadelphia, and in the Cayman Islands.  EisnerAmper is an independent member of PKF International, the 11th largest global accountancy network of over 240 legally independent member and correspondent firms located in 125 countries. EisnerAmper’s affiliation with PKF International enables the firm to provide technical and advisory services across North America and around the world to clients with international requirements.

A Magnet for Talented Professionals 

The expanded career opportunities resulting from the combination make EisnerAmper a firm of choice, enabling it to continue to attract and retain the best and brightest professionals in a wide spectrum of practice areas.  Before the combination, both firms were dedicated to providing fulfilling careers for all staff and had a long history of making their working environment and culture a priority as illustrated by each firm placing high in several Best Places to Work rankings.  This will only get stronger as the firm's similar cultures combine.

“The relationship between Eisner and Amper extends back many years and has always been one of mutual respect and admiration,” said Howard Cohen, who becomes the firm’s Chairman.  “We have undertaken this combination with full confidence in our new partners and colleagues.  Together, we are infinitely stronger in terms of regional reach, professional expertise and client service.  We are well positioned for both immediate and long-term growth.”

“This combination is based on a strong foundation of trust that extends to the partners at both firms,” said Charly Weinstein, the firm’s new Chief Executive Officer.  “Our teams have already begun working in concert to ensure not only a seamless transition for clients, but also to deliver to them the maximum benefits of our greater combined resources.  This is truly a situation where the whole is greater than the sum of its parts.”

About EisnerAmper LLP 

EisnerAmper is one of the premier accounting, tax and business advisory firms in the United States and the leading regional firm in the Northeast.  EisnerAmper provides a wide array of services to a diverse client base including publicly traded and privately held companies and high net worth individuals and family groups.  For more information, please visit EisnerAmper at


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