Founder Profile
Arthur J. Schmitt
Last reviewed: 2026 · By Swet Parvadiya
Background
Arthur J. Schmitt was born on June 14, 1893, in Chicago, Illinois, the third child of Henry W. and B. Elizabeth Schmitt. As a youth, he attended St. Ignatius High School run by the Jesuits and developed a passion for building and tinkering, constructing wagons from crates and baby-carriage wheels. At age 17 in 1910, he built a 'Wind Machine' by attaching an airplane engine and propeller to a stripped-down car chassis, achieving speeds of 50 mph on straightaways. After experimenting with radios, Schmitt discovered that Bakelite, a phenolic plastic, could be molded to form superior electrical sockets. He founded Walnart Mfg. Co. in 1923 with $5,000 and partner Walter Horn, producing bakelite radio tube sockets. After leaving that venture in 1932 due to Depression-related struggles and a merger dispute, Schmitt filed a patent in August 1932 for a new molded phenolic socket and founded American Phenolic Corporation in November 1932. His founding philosophy of 'no compromise' on quality and concentration on electronic components rather than elaborate assemblies established the engineering culture that would define Amphenol for decades. Schmitt took the company public in 1945 and led it through the transition from wartime to peacetime operations before his death.
Founding Story
Arthur J. Schmitt was an American engineer, inventor, and entrepreneur who founded Amphenol Corporation in 1932 as American Phenolic Corporation in Chicago, Illinois. Born in 1893, Schmitt developed an early passion for mechanical and electrical engineering, building a propeller-driven car at age 17 and later experimenting with radio technology. His critical insight was that phenolic resins could be molded into precise, durable electrical connectors and sockets that outperformed ceramic and metal alternatives. After founding Walnart Mfg. Co. in 1923 and leaving in 1932, he launched American Phenolic with a patented radio tube socket that became the company's first commercial breakthrough. Under Schmitt's leadership, Amphenol grew from a Depression-era startup to a critical WWII defense supplier, with revenues expanding 80-fold from $535,000 in 1939 to $42.8 million in 1944. He established the company's core principles of engineering excellence, customer responsiveness, and quality without compromise that continue to guide Amphenol today. Schmitt took the company public in 1945 and navigated the challenging post-war transition before his eventual passing, leaving behind a company that would evolve into one of the world's largest interconnect suppliers.