J.M. O'Brien & Co. Email Format

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.

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