Thom has written arrangements for a diverse group of artists including the New Christy Minstrels, Joe Sample, Wilton Felder, and Harry Connick Jr. He has composed, arranged, and orchestrated music for Disney, Dreamworks, Paramount, Universal, and others. He wrote the music for the feature film Ping and orchestrated on the movies When Harry Met Sally, City Slickers and The Addams Family. He has written for numerous animated television series, including Aladdin (for which he won an Emmy), Little Mermaid, Toonsylvania, Casper (for which he was nominated for an Emmy) and the award winning New Adventures of Winnie the Pooh. Thom co-wrote and produced Songs from the Circle, a Parent Choice Approved CD of children's songs.
In 1999 Thom founded and was the main composer for Sharp Mountain Music, a publishing company specializing in string orchestra music for the educational market. After building up the catalog to over 50 titles, he sold the company to Latham Music, a division of Lorenz Music. He is still actively composing for Latham Music and his compositions can currently be heard in elementary, junior high, and high school orchestras across the United States and abroad.
In 2009 Thom received the Distinguished Fine Arts Alumni Award from Ohio University. He is a member of the Professional Musicians Union Local 47, the Recording Musicians Association, The American String Teachers Association, and ASCAP.
Thom currently teaches Advanced Harmony, Film Scoring, and Orchestration at UCLA Extension, and the Los Angeles County High School for the Arts. He regularly conducts seminars on a variety of topics for ASTA and other professional education development organizations across the country.
Thom lives in Los Angeles with vocalist and composer Sue Roberts Sharp, his wife of 20+ years, and Ian and Iris, his two children.