Founded in 1945, Johnson O’Connor has grown to become one of the preeminent accounting and consulting firms in the Greater Bo ... ston 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. read more