About Company

Sisterson & Co. LLP is an independently owned certified public accounting and advisory firm based in Pittsburgh, Pennsylvania, with a history dating back to 1926. The company offers a comprehensive range of audit, tax, and advisory services to clients locally, regionally, and nationally. Sisterson specializes in audit and assurance services that help improve accounting systems and financial controls, sophisticated tax compliance and planning, and advisory services including field exams, valuations, and due diligence. The firm serves a variety of industries such as employee benefit plans, energy, manufacturing, not-for-profit, private investment companies, real estate, and technology. Sisterson emphasizes a niche team approach to develop deep industry knowledge and prides itself on its collaborative culture, work-life balance, and commitment to quality client service. The company operates from a single office in downtown Pittsburgh and is dedicated to supporting clients with personalized and expert guidance.

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