Based in San Juan Capistrano, California, William Martensen leads a tax and financial firm that offers a full range of accounting solutions. Working with more than 600 individuals and businesses, he meets needs ranging from tax return preparation to IRS audit representation. William Martensen delivers in-office and virtual consultations and conducts informational programs that provide in-depth knowledge on wealth-maximizing strategies and options.

Mr. Martensen earned his BS at the University of Arizona's Eller College of Business and gained early professional experience under the mentorship of a retired IRS agent. He has provided tax preparation services for more than a decade, having launched his own tax and accounting firm in 2008.

Mr. Martensen supports a number of charitable organizations and takes part in annual golf tournaments that raise money for worthy causes. One such event benefits those who experience housing insecurity and youth from underprivileged backgrounds. He also contributes to local addiction recovery initiatives.

William Martensen