Louis C. Grassi

Managing Partner, Grassi & Co.

Louis C. Grassi is the Chief Executive Officer and driving force behind the firm’s growth. He began his career in 1977 and has extensive experience in tax, accounting and consulting.

Lou’s counsel has proven instrumental to the success of many companies in the Construction, Real Estate, Architecture & Engineering, Manufacturing, and Professional Service industries. Lou takes a proactive role with clients, performing such value-added services as profit-enhancement studies, operational reviews, performance benchmarking, forensic accounting, cost analysis, incentive compensation programs, estate and succession planning, corporate restructuring, and corporate retreat facilitation.

Under Lou’s guidance, Grassi & Co. has been ranked among the Top 25 “Best of the Best Firms” by INSIDE Public Accounting for six consecutive years, and ranked as the 7th largest firm on Long Island by Long Island Business News. Grassi & Co. was also ranked among Crain’s New York Business’ Top 25 Accounting Firms in New York.

A nationally recognized expert, Lou is frequently called upon as a lecturer and business advisor for companies and industry trade organizations. He has authored numerous local and national articles, also serving as a contributing editor to the Corporate Controller’s Manual and was the Editor of the Journal of Construction Accounting & Taxation.

Lou is also an adjunct professor at Columbia University teaching a graduate level course in finance and accounting. Lou has received numerous professional awards and accolades. He has served as an executive board officer for the New York State Society of Certified Public Accountants (NYSSCPA), and he is a member of the American Institute of Certified Public Accountants (AICPA). Lou also serves on numerous committees and task forces within the industries that the firm serves. A member of the Young Presidents Organization, he appears in both the national and international Who’s Who Directory of Finance, and he was a member of the Editorial advisory board of CPA Managing Partner Report, The CPA Journal, and other industry publications. Lou currently serves on the board of Moore Stephens North America, part of an international association of more than 360 independent accounting and consulting firms.

Actively involved in his community, Lou holds board positions with several civic and philanthropic organizations. He was a member of the Nassau County Audit Advisory Committee, as well as a former member of the Nassau County Comptroller’s transition team and past chairman of a large not-for-profit human services agency. Additionally, Lou serves on the Board of Flushing Financial Corp, BRT Realty, and a mutual insurance company.

A graduate of Queens College, Lou holds a Business Administration degree in Accounting. He has completed postgraduate courses in taxation and earned the designation of Certified Fraud Examiner (CFE) from the National Association of Certified Fraud Examiners.

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