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Accounting Firm

Cooper Arias, LLP

Hudson Valley CPA firm offering accounting, auditing, tax planning and estate work from three county offices

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About Cooper Arias, LLP

Cooper Arias, LLP is an accounting firm with offices in Orange, Rockland and Sullivan Counties in New York, serving the Hudson Valley and the wider tri-state area. It began in 1988 as a one-person practice. The firm pitches itself as big enough to cover a full range of accounting, tax, audit and consulting work while staying small enough to know clients personally.

What Cooper Arias, LLP offers

  • Accounting — general accounting for businesses and individuals.
  • Auditing — audit work on financial statements.
  • Tax planning — planning and preparation for business and personal tax.
  • Estate and trust work — tax and accounting for estates and trusts.
  • Small business consulting — advice for owners of smaller companies.
  • Online tools — a tax centre plus financial and paycheck calculators on its website.

Who it works with

The firm serves individuals and small businesses across the Hudson Valley and the tri-state area.

Key facts

  • Based in: Middletown area, with offices in Orange, Rockland and Sullivan Counties
  • Founded: 1988
  • Team: 31 staff, including 9 CPAs
  • Memberships: American Institute of CPAs and New York State Society of CPAs

Profile written by TrustList from the business's own published information, Sep 2026.

Categories & features

Rankings

As of 2026-10-05. Organic ranks only; sponsored placements are never ranks.

What the business tells TrustList

Founded
1988 (38 years) evidence sent
Number of staff
31 people evidence sent

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