NWI CPAs Providing You With the Highest Level of Professionalism

One of our core values is to provide you with the highest level of personal and professional service. We're all committed to rolling up our sleeves and working with you.

We maintain a strong system of quality control and subject those controls to external review by other CPA firms, ensuring we exceed the high standards required by our industry. Keilman, Austgen & Sinal, and all of our CPAs, are members of the American Institute of Certified Public Accountants (AICPA). We are licensed in Indiana and Illinois. Our CPAs and accounting professionals undergo continuing education in order to keep abreast of financial changes. When we offer advice, you can trust it is based on the most current information from a specially compiled team of experts.

Staff includes CPAs Debra Waisnora, Marti Sapp, and Michael Tomaszewski as well as professional accounting and administrative personnel.

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In 1984, CPAs Frank Keilman and Dennis Austgen opened the Merrillville office. It was born out of a desire to be more hands on and personally involved than at the large firm where they worked. Theodore Sinal, Jr. joined the firm shortly thereafter, and Carol Hughes joined as a partner in 2002.

Keilman, Austgen & Sinal's first clients were small retail and medical businesses that saw the value of retaining the expertise of a large accounting firm with the personal service that remains our hallmark today. Even though we specialize in construction/manufacturing, medical services, and retail, our staff's talents have few limitations. CONTACT US if you want to discuss your situation.


Theodore Sinal, Jr., CPA

Ted started with Frank Keilman and Dennis Austgen in 1983 later becoming partner in 1994. He has extensive knowledge in accounting for medical practices, small to medium-sized businesses including manufacturing and construction, individual, business, estate tax returns, and audits for construction and manufacturing.

Carol M. Hughes, CPA

Carol joined Keilman, Austgen & Sinal, P.C. in 2002 and became a partner in 2010. Her primary emphasis is on accounting and tax services for small to medium-sized businesses, individual, business, estate, gift, and trust tax returns, non-profit and construction audits, and accounting software consultation.