Accounting Firm

Hallisey & D’Agostino, LLP

Connecticut public accounting firm serving individuals and small to mid-size closely held businesses

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TrustList summary

Hallisey & D'Agostino, LLP is a full-service public accounting firm in Connecticut. It covers accounting, tax and advisory work for individuals and for closely held companies of small and medium size in the state and nearby areas.

What Hallisey & D'Agostino, LLP does

Accounting and assurance: from routine bookkeeping to audit support on complex transactions.
Tax: planning that keeps pace with changing laws and regulations.
Construction industry services: a dedicated practice area.
Trusts and estates: planning and preservation strategies.
Individual services: personal wealth planning aimed at a secure retirement, including tax minimisation.
Business advisory: help for start-ups and established firms with operations, succession and regulation.

Clients

Individuals and small to mid-size closely held businesses across Connecticut.

Key facts

Based in: Connecticut

Summary written by TrustList from the business's own published information, Oct 2026.

Categories & features

Rankings

Hallisey & D’Agostino, LLP is ranked on 1 TrustList ranking at #19.

Every ranking orders its listings by their reviews, how complete the profile is and the Trust Score. Hallisey & D’Agostino, LLP has no reviews yet and 3 of the 10 profile details we look for. Where no listing on a page has been reviewed, the order follows the profiles alone.

Accounting firm · 1 ranking

#19of 12
Connecticut
It is one of 5 here listing goals and one of 14 here listing accounting.
Its profile: “Hallisey & D'Agostino, LLP is a full-service public accounting firm in Connecticut.”
Of the 12 here, 17 also cover tax and 14 also cover accounting; 2 also work in Stamford and 2 also work in Maryland.
Behind Fiorita Kornhaas & Company, PC, ahead of Howard D. Burtis, CPA.

As of 2026-10-31. Organic ranks only; sponsored placements are never ranks. How TrustList ranks