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Grassi

Independent advisory, tax, and accounting firm

Overview

Grassi is an independent, employee-owned advisory, tax, and accounting firm serving middle-market businesses, public companies, high-net-worth individuals, and nonprofits. It delivers attest, tax, and business consulting through sector-specialized teams and blends traditional accounting with strategic advisory guided by client goals, supported by 10 U.S. offices and global reach via PrimeGlobal. Its independence as an ESOP (since 2023) aligns client success with firm incentives, differentiating it from firms that merge or take private equity funding. The firm's aim is to help clients grow, manage complexity, and build lasting value through practical, relationship-focused guidance.

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About Grassi

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Industries

Company Size

201-500

Company Stage

N/A

Total Funding

N/A

Headquarters

New York City, United States

Founded

1980

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Benefits

  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • 401(k) Retirement Plan
  • Company Equity
  • Wellness Program
  • Gym Membership
  • Training Programs
  • Professional Certification Support
  • Paid Vacation
  • Employee Referral Bonus
  • Performance Bonus

Company News

Associated Press
Sep 2nd, 2026
Grassi adds two tax partners to strengthen international and estate services

Grassi, a leading employee-owned advisory, tax and accounting firm, has appointed two new tax partners to expand its international tax and trust and estate services. Tiffany Roque joins as Partner and International Tax Leader, bringing expertise in global tax structuring, foreign investment analysis and US international tax provisions. Angela Ferrantelli becomes Trust & Estate Partner, contributing over 20 years of experience in estate and trust taxation, wealth transfer strategies and fiduciary accounting. Both partners will advise high-net-worth individuals, families and businesses on complex tax matters. "Their experience and technical knowledge strengthen our ability to deliver insights across domestic and international tax matters," said Louis C. Grassi, founder and CEO. Grassi ranks as the 52nd-largest accounting firm in the United States.

Editrice Il Biellese srl
Dec 7th, 2025
SizeYou doubles valuation as Grassi invests again in body-scanning tech

SizeYou, a Biella-based technology company that measures the human body via smartphone to create digital avatars, has doubled its valuation following a second capital increase from Grassi, a leading Italian workwear manufacturer. The company, founded by Alessandro Canepa and Stefano Fasana, has secured patents in the US, Europe, China, South Korea and Australia. The startup has achieved significant commercial milestones, including a partnership with Alpinestars, the official supplier for Formula 1 and MotoGP, which selected SizeYou over its previous American provider. The technology is also expanding in medical, wellness and aesthetic markets, with clients including SkinMedic, a major Italian chain. SizeYou has raised over €2.5 million to date and is currently conducting an equity crowdfunding campaign on 2Meet2Biz, which has reached nearly 50% of its target in under a month.

Long Island Business News
Nov 7th, 2025
Grassi expands franchise services with OnePoint acquisition | Long Island Business News

Grassi acquires Denver-based OnePoint Franchise Accounting, expanding its franchise services and presence in the restaurant and food industry.

Yahoo Finance
Jan 31st, 2025
Grassi merges with Massachusetts-based Anstiss & Co

The move is expected to strengthen Grassi's presence in the region and expand its service offerings.

ROI-NJ
May 3rd, 2024
How Can Manufacturers Remain Profitable In The Face Of A Skilled Labor Shortage?

Robert Grote of Grassi. –A combination of in-person work, low unemployment and high industrial demand has turned a pre-pandemic labor shortage into a current-day labor crisis for industries that rely on specialized skills. The manufacturing industry has been among the hardest hit as the skills gap widens.Grassi’s 2024 survey of food & beverage manufacturers in the New York City metropolitan area found that an astounding 90% have concerns about staffing. Among them, companies that grew profits in 2023 were likelier to have implemented strategies to mitigate staffing risks. Nearly 60% credited improved employee productivity as a primary driver of profitability.These high-performing manufacturers use the most effective staffing strategies, including converting temporary workers into full-time positions, changing shift schedules, offering bonus incentives and implementing flexible schedules.Of course, these solutions come with a price, and, unsurprisingly, the high labor cost was the most common concern reported by respondents this year. Savvy business owners recognize that staffing strategies must be offset with cost-saving tactics to remain profitable.When we spoke with the owners of these companies, several key themes emerged

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