Founded in 1945, Johnson O’Connor has grown to become one of the preeminent accounting and consulting firms in the Greater Boston area. We are proud to be ranked as a “Top 50 Accounting Firm” by the Boston Business Journal. Through our membership in the AGN network of accounting and advisory firms, we have national and international capabilities typically only available from the largest firms.

Johnson O’Connor provides a comprehensive range of tax services, assurance services, merger and acquisition strategies, business consulting, and financial planning. Our clients range from middle market, entrepreneurial, and family-owned businesses to medium-sized companies in a diverse range of industries. We also provide third-party administration for many of our clients’ qualified retirement plans.

With outstanding industry insight and a fully independent point of view, we will help you develop a clear course of action to achieve your personal and professional goals. The personal touch never goes out of style at Johnson O’Connor. If you’re looking for more than business as usual from an accounting firm, meet with us and experience the difference.

Johnson O'Connor

This department manages financial recordkeeping, reporting, and tax compliance activities.

Accounting Department

This department focuses on establishing and nurturing strategic alliances and partnerships to drive business growth.

Partnership Development

This department manages tax compliance, planning, and reporting to ensure adherence to applicable tax laws and regulations.

Tax Department

This department oversees strategic planning and operational execution within the organization.

Management

This department manages and optimizes the organization's operational processes and workflows.

Operations Department

This department focuses on providing assurance and attestation services to ensure compliance and enhance stakeholder confidence.

Johnson O'Connor

Org chart

Teams

Accounting Department

Partnership Development

Tax Department

Management

Operations Department

Assurance Services

Offices

Johnson O'Connor

Org chart

Teams

Accounting Department

Partnership Development

Tax Department

Management

Operations Department

Assurance Services

Offices

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