Brian Berger

Founder & CEO

Mack Weldon
Brian Berger is the Founder and CEO of menswear basics brand Mack Weldon. Brian launched Mack Weldon in 2012 with a clear, two-pronged mission: reinvent men's underwear through technical innovation and smart design, and simplify the experience of shopping for it. Since then, Mack Weldon has become a leader within the men's apparel industry, having expanded its product offering to include other essentials of the modern man's wardrobe: from sweats and t-shirts to activewear and accessories. 

Prior to founding Mack Weldon, Brian served in several leadership positions within consumer Internet and media companies including Comcast, WebMD, and Excite@Home. Brian graduated with a Bachelor of Arts in Political Science from the University of Colorado and continued his education at Columbia University, where he received a Master of Business Administration. Brian currently lives in NYC with his wife and three sons.