Accounting and consulting firm MarksNelson has promoted Sarah Schiltz and Tammy Siegrist to partner.

Schiltz is the youngest woman to become partner in the history of MarksNelson. She joined the firm in 2005. Schiltz specializes in partnership taxation, real estate accounting and tax services for high net-worth clients.

Siegrist has spent the last 13 years of her career in public accounting focusing on the insurance industry. She is part of MarksNelson’s national insurance practice and manages a large portfolio of both traditional and producer-owned reinsurance companies and specializes in insurance taxation, including captive insurance and corporate tax. Currently, Siegrist is the  co-vice president of finance for the American Business Women’s Association and is a member of the National Association of Professional Women.