Stambaugh Ness

Stambaugh Ness is a professional services firm established in 1996, with roots dating back to 1918. The company specializes in serving the architecture, engineering, and construction (AEC) industries, along with sectors such as professional services, construction, real estate, and manufacturing. It offers a comprehensive range of advisory, technology, accounting, and tax services tailored to meet the specific needs of these markets.

With a team of around 200 professionals across more than 30 states, Stambaugh Ness has developed a strong presence in the AEC industry. The firm provides business and tax advisory services, compliance consulting, and M&A solutions, as well as technology solutions like Deltek ERP software and Microsoft solutions. Its accounting and tax services are designed to address the unique requirements of its clients. Stambaugh Ness is recognized for its commitment to service excellence, having received ClearlyRated’s 2025 Best of Accounting Award for high client satisfaction. The firm operates nationally from its headquarters in York, Pennsylvania, and is an independent member of the BDO Alliance USA.