Insights

Niche Industry Focus J.M. O'Brien & Co. operates within the specialized accounting sector, serving clients in Not-for-profit, financial services, manufacturing, retail, and transportation. This niche focus presents opportunities to tailor service offerings and deepen relationships within these sectors.

Growing Client Base With a client portfolio of approximately 700 organizations and a revenue range of 10 to 25 million dollars, there is significant potential to expand services, especially in nontraditional areas such as litigation support and transactional consulting, for these existing and prospective clients.

Technology Platform The use of GoDaddy suggests a focus on online presence and digital infrastructure. Enhancing digital marketing and online service capabilities could attract more clients seeking innovative and tech-savvy accounting solutions.

Competitive Positioning Despite being a small firm with 2 to 10 employees, J.M. O'Brien & Co. operates in a competitive market alongside large firms with thousands of employees. There is an opportunity to differentiate through personalized services, niche expertise, and specialized consulting.

Market Potential Positioned among larger financial service firms with revenues up to 10 billion dollars, J.M. O'Brien & Co. can target mid-sized businesses and organizations that require high-quality, personalized accounting and consulting services, creating avenues for increased market share.

J.M. O'Brien & Co. Tech Stack

J.M. O'Brien & Co. uses 1 technology products and services including GoDaddy, and more. Explore J.M. O'Brien & Co.'s tech stack below.

  • GoDaddy
    Web Hosting

Media & News

J.M. O'Brien & Co.'s Email Address Formats

J.M. O'Brien & Co. uses at least 1 format(s):
J.M. O'Brien & Co. Email FormatsExamplePercentage
FLast@jmobrien.comJDoe@jmobrien.com
79%
Last@jmobrien.comDoe@jmobrien.com
21%

Frequently Asked Questions

Where is J.M. O'Brien & Co.'s headquarters located?

Minus sign iconPlus sign icon
J.M. O'Brien & Co.'s main headquarters is located at 1350 Main Street One Financial Plaza 15th Floor Springfield, Massachusetts 01103 United States. The company has employees across 2 continents, including North AmericaAsia.

What is J.M. O'Brien & Co.'s phone number?

Minus sign iconPlus sign icon
You can contact J.M. O'Brien & Co.'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 J.M. O'Brien & Co.'s official website and social media links?

Minus sign iconPlus sign icon
J.M. O'Brien & Co.'s official website is jmobrien.com and has social profiles on LinkedIn.

What is J.M. O'Brien & Co.'s NAICS code?

Minus sign iconPlus sign icon
J.M. O'Brien & Co.'s NAICS code is 5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services.

How many employees does J.M. O'Brien & Co. have currently?

Minus sign iconPlus sign icon
As of May 2026, J.M. O'Brien & Co. has approximately 9 employees across 2 continents, including North AmericaAsia. Key team members include President: J. O.Partner: A. M.Director, Trusts & Estates: L. K.. Explore J.M. O'Brien & Co.'s employee directory with LeadIQ.

What industry does J.M. O'Brien & Co. belong to?

Minus sign iconPlus sign icon
J.M. O'Brien & Co. operates in the Accounting industry.

What technology does J.M. O'Brien & Co. use?

Minus sign iconPlus sign icon
J.M. O'Brien & Co.'s tech stack includes GoDaddy.

What is J.M. O'Brien & Co.'s email format?

Minus sign iconPlus sign icon
J.M. O'Brien & Co.'s email format typically follows the pattern of FLast@jmobrien.com. Find more J.M. O'Brien & Co. email formats with LeadIQ.

When was J.M. O'Brien & Co. founded?

Minus sign iconPlus sign icon
J.M. O'Brien & Co. was founded in 1991.

J.M. O'Brien & Co.

AccountingMassachusetts, United States2-10 Employees

J.M. O'Brien & Company, PC was founded in October 1991 by John M. O'Brien. We service approximately 700 clients by providing auditing/accounting and tax services.
 
We provide auditing and accounting services to a wide range of clients in the following industries:
     * Not-for-profit
     * Financial service
     * Distribution 
     * Manufacturing
     * Retail 
     * Service
     * Transportation 

In addition, we provide other nontraditional services such as litigation support, budgeting and forecasting, outsourced internal audit services and specialized transactional consulting.

Section iconCompany Overview

Headquarters
1350 Main Street One Financial Plaza 15th Floor Springfield, Massachusetts 01103 United States
Phone number
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
1991
Employees
2-10

Section iconMedia & News

Section iconFunding & Financials

  • $10M$25M

    J.M. O'Brien & Co.'s revenue is estimated to be in the range of $10M$25M

Section iconFunding & Financials

  • $10M$25M

    J.M. O'Brien & Co.'s revenue is estimated to be in the range of $10M$25M

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.

ยฉ LeadIQ, Inc. All rights reserved.