John C. Hallenborg is a driven autodidact, veteran business journalist, published author and multifaceted entrepreneur from New York City, now based in Redondo Beach, California. With more than five decades of experience across some of today's most dynamic fields, he is a seasoned writer with a sharp, analytical mind. Since the 1970s, he has covered finance, technology and business for numerous publications. He is the author of the acclaimed memoir Life, Sex, and Prostate Cancer Surgery: How One Man Healed and Was Made Whole.  

John's expertise spans an impressive range of services. As a lifelong automotive enthusiast, he offers personalized sourcing, brokerage, buying, and selling services for classic and exotic cars and rare bikes. He provides hard asset lending solutions for those seeking fast, flexible access to capital, and draws on decades of real-world experience as a business consultant helping clients at every stage of growth. A dedicated audiophile, he offers access to a curated selection of high-end stereo systems, premium audio components, which he combines to create world-class stereo systems. He also brings his passion for knowledge to education management, offering advisory services for students and institutions from high school through doctoral study in the humanities.

Whether over the road, racetrack, in the boardroom, in the classroom or in the listening room, John C. Hallenborg brings the same rare combination of acumen, passion, expertise, and personalized service to everything he does.