About GRASSI & CO., CPAS, P.C.
<p>With over 550 employees, Grassi & Co., CPAs, P.C. is a large accounting firm that works with organizations that need clear financial reporting and reliable oversight.</p> <p>Founded in 1980, the firm provides audit services alongside related accounting support. Retirement plan sponsors often look for <a href="/auditors/401k">401(k) auditors</a> who can coordinate closely with internal finance teams and third-party administrators, and Grassi & Co. offers that mix of plan-focused audit work and broader firm resources.</p> <p>Beyond audit engagements, the firm has professionals who cover day-to-day finance leadership and specialized reviews. That includes CPA services, CFO support, business consulting, forensic accounting, and tax advisory work.</p> <p>What sets the firm apart is the range of in-house specialties available under one roof, which can reduce handoffs when a plan audit touches payroll, tax reporting, or internal controls.</p> <ul> <li>Retirement plan audit support from <a href="/auditors/401k">401(k) auditors</a></li> <li>CPA and assurance services</li> <li>CFO and finance leadership support</li> <li>Forensic accounting</li> <li>Tax advisory services</li> </ul>
Website: https://www.grassiadvisors.com/about-us/
Founded: 1980
Audit Statistics (2024)
- Total Plans Audited: 113
- Total AUM Audited: $55.2B
- 401(k): 113 plans, $55.2B AUM
Plans Serviced (2025)
Largest plans where this firm is listed as a service provider (Schedule C) or IQPA (Schedule H) on the most recent filings (From Form 5500).
| Plan | Sponsor | Assets | Participants |
|---|---|---|---|
| IRON WORKERS LOCALS 40, 361 & 417 ANNUITY FUND | BOARD OF TRUSTEES IRON WORKERS LOCALS 40, 361 & 417 ANNUITY FUND, NY | $1.2B | 2,187 |
| STV RETIREMENT PLAN | STV GROUP, INC., PA | $930M | 3,360 |
| IRON WORKERS LOCALS 40, 361 & 417 PENSION FUND | BOARD OF TRUSTEES IRON WORKERS LOCALS 40, 361 & 417 PENSION FUND, NY | $706M | 1,826 |
| GLOBAL INFRASTRUCTURE SAVINGS PLAN | T.Y. LIN INTERNATIONAL GROUP, LTD, CA | $444M | 2,148 |
| STRUCTURE TONE ORGANIZATION 401K PROFIT SHARING PLAN | STO BUILDING GROUP, INC., NY | $402M | 1,549 |
| 401(k) Retirement Plan | Healthcare Sponsor, NY | $310M | 884 |
| 401(k) Retirement Plan | Manufacturing Sponsor, NY | $229M | 1,638 |
| 401(k) Retirement Plan | Professional Services Sponsor, NY | $206M | 932 |
| 401(k) Retirement Plan | Technology Sponsor, NY | $168M | 574 |
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