Insights

Not-for-profit focus Small accounting firm with strong exposure to not-for-profit clients presents a clear opportunity to offer specialized NFP auditing, tax, and grant compliance services to expand their service depth and cross-sell nontraditional offerings.

High client base Serving around 700 clients with a lean team suggests potential demand for scalable outsourced internal audit, budgeting, and forecasting tools or advisory services to improve efficiency and maintain audit quality as client volumes grow.

Boutique scale 2-10 employees in a specialized accounting practice indicate a need for technology modernization, data analytics, and cloud-based collaboration platforms to boost productivity and support future growth without proportional headcount increases.

Technology leverage Reliance on GoDaddy points to limited enterprise-grade tech footprint; opportunity to introduce modern cybersecurity, workflow automation, and client portal solutions to enhance data security and service delivery for clients.

Growth alignment Revenue range of 10–25 million with a diverse industry mix creates openings for advisory services around financial planning, internal controls, and risk assessment to help the firm scale while serving multiple sectors.

Similar companies to J.M. O'Brien & Co.

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

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

J.M. O'Brien & Co. uses at least 2 email formats:
J.M. O'Brien & Co. Email FormatsExamplePercentage
FLast@jmobrien.comJDoe@jmobrien.com
79%
Last@jmobrien.comDoe@jmobrien.com
21%

Frequently Asked Questions

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

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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?

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

How much revenue does J.M. O'Brien & Co. generate?

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As of September 2026, J.M. O'Brien & Co.'s annual revenue is estimated to be $10M - $25M.

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

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J.M. O'Brien & Co.'s SIC code is 8721 - Accounting, Auditing, and Bookkeeping Services and NAICS code is 5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services.

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

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As of September 2026, J.M. O'Brien & Co. has approximately 9 employees across 2 continents, including North America and Asia. Key team members include Audit Specialist: M. C. Explore J.M. O'Brien & Co.'s employee directory with LeadIQ.

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

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J.M. O'Brien & Co. operates in the Accounting industry.

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

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J.M. O'Brien & Co.'s tech stack includes GoDaddy.

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

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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?

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J.M. O'Brien & Co. was founded in 1991.
J.M. O'Brien & Co. logo

J.M. O'Brien & Co.

AccountingMassachusetts, United States2-10 Employees

J.M. O’Brien & Co. is a small accounting firm based in Springfield, Massachusetts, established in 1991 by John M. O’Brien. The firm serves a diverse client base, delivering auditing and accounting services plus tax support to about 700 clients across sectors such as not-for-profit organizations, financial services, manufacturing, distribution, retail, service, and transportation. In addition to core audit and tax work, the firm offers nontraditional services including litigation support, budgeting and forecasting, outsourced internal audit, and specialized transactional consulting. The practice positions itself in the accounting industry as a provider of both routine financial services and value-added advisory support to a broad range of entities. The company operates from its Springfield location with a lean professional footprint, emphasizing a suite of services tailored to organizations needing comprehensive financial oversight and strategic assistance.

Section iconCompany Overview

Phone number
SIC Code
8721 - Accounting, Auditing, and Bookkeeping Services
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
1991
Employees
2-10

Section iconFunding & Financials

  • $10M - $25M

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

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