Insights

Leadership Growth Recent leadership promotions and VP/shareholder appointments indicate expansion and capacity to take on larger, more complex client engagements, creating cross-sell opportunities across accounting, tax, estate planning, and business advisory services.

Private Firm Focus GT Reilly targets privately-held companies and their owners in the Greater Boston area, making mid-market tax planning, succession planning, and strategic advisory a natural sales focus.

Credibility Edge Forbes recognition as one of America’s Best Tax and Accounting Firms enhances credibility to win additional private-company engagements and higher-value advisory work.

Local Footprint Based in Milton MA with a local footprint near Boston, there is opportunity to expand relationships with regional privately-held firms seeking local expertise and people-first service.

Growth Partnerships With estate planning and business advisory services core to the offering, target opportunities include succession planning, internal controls, and growth strategies for owner-led businesses; potential partnerships with wealth managers and law firms.

GT Reilly & Company Tech Stack

GT Reilly & Company uses 8 technology products and services including Quantcast Measure, Google Hosted Libraries, RSS, and more. Explore GT Reilly & Company's tech stack below.

  • Quantcast Measure
    Analytics
  • Google Hosted Libraries
    Content Delivery Network
  • RSS
    Content Management System
  • Cloudflare
    Content Management System
  • Google Fonts API
    Font Scripts
  • PHP
    Programming Languages
  • Autoptimize
    Web Platform Extensions
  • Apache HTTP Server
    Web Servers

Media & News

GT Reilly & Company's Email Address Formats

GT Reilly & Company uses at least 1 format(s):
GT Reilly & Company Email FormatsExamplePercentage
Last@gtreilly.comDoe@gtreilly.com
50%
First@gtreilly.comJohn@gtreilly.com
30%
FirstL@gtreilly.comJohnD@gtreilly.com
13%
F.Last@gtreilly.comJ.Doe@gtreilly.com
7%

Frequently Asked Questions

Where is GT Reilly & Company's headquarters located?

Minus sign iconPlus sign icon
GT Reilly & Company's main headquarters is located at 424 Adams Street Milton, Massachusetts 02186 United States. The company has employees across 3 continents, including North AmericaAfricaAsia.

What is GT Reilly & Company's phone number?

Minus sign iconPlus sign icon
You can contact GT Reilly & Company's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is GT Reilly & Company's official website and social media links?

Minus sign iconPlus sign icon
GT Reilly & Company's official website is gtreilly.com and has social profiles on LinkedIn.

What is GT Reilly & Company's SIC code NAICS code?

Minus sign iconPlus sign icon
GT Reilly & Company's SIC code is 8721 - Accounting, Auditing, and Bookkeeping Services NAICS code is 5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services.

How many employees does GT Reilly & Company have currently?

Minus sign iconPlus sign icon
As of June 2026, GT Reilly & Company has approximately 49 employees across 3 continents, including North AmericaAfricaAsia. Key team members include Vice President & Director Of Tax Services: C. K.Vice President & Audit Director: J. F.Vice President And Accounting & Auditing Director: J. F. M.. Explore GT Reilly & Company's employee directory with LeadIQ.

What industry does GT Reilly & Company belong to?

Minus sign iconPlus sign icon
GT Reilly & Company operates in the Accounting industry.

What technology does GT Reilly & Company use?

Minus sign iconPlus sign icon
GT Reilly & Company's tech stack includes Quantcast MeasureGoogle Hosted LibrariesRSSCloudflareGoogle Fonts APIPHPAutoptimizeApache HTTP Server.

What is GT Reilly & Company's email format?

Minus sign iconPlus sign icon
GT Reilly & Company's email format typically follows the pattern of Last@gtreilly.com. Find more GT Reilly & Company email formats with LeadIQ.

When was GT Reilly & Company founded?

Minus sign iconPlus sign icon
GT Reilly & Company was founded in 1955.

GT Reilly & Company

AccountingMassachusetts, United States11-50 Employees

G.T. Reilly & Company is a certified public accounting firm serving the Greater Boston area, delivering accounting and tax services along with estate planning and business advisory support for privately held businesses and their owners. The firm describes knowledge, integrity, and quality service as its core values and aims to provide solutions across a wide range of business needs in today''s changing marketplace. It emphasizes that strong client relationships and a deep understanding of each client''s needs underpin its work.

Based in Milton, Massachusetts, the practice operates as a mid-sized firm focused on serving a local market. Its client base consists of privately owned companies and their owners, for whom it provides accounting, tax, estate planning, and business advisory services. In 2025, G.T. Reilly & Company promoted Sean S. McNeil to Accounting & Auditing Director.

Section iconCompany Overview

Headquarters
424 Adams Street Milton, Massachusetts 02186 United States
Phone number
SIC Code
8721 - Accounting, Auditing, and Bookkeeping Services
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
1955
Employees
11-50

Section iconFunding & Financials

  • $100M$250M

    GT Reilly & Company's revenue is estimated to be in the range of $100M$250M

Section iconFunding & Financials

  • $100M$250M

    GT Reilly & Company's revenue is estimated to be in the range of $100M$250M

Ready to create more pipeline?

Get a demo and discover why thousands of SDR and Sales teams trust
LeadIQ to help them build pipeline confidently.

© LeadIQ, Inc. All rights reserved.