Penn Aluminum is a premier manufacturer of aluminum extruded profiles and drawn tubing, providing high quality, engineered solutions to our customers. With strategically located production facilities in the US, we are well positioned to support our customers throughout North America and beyond. Penn Aluminum LLC is part of Marmon Holdings, Inc, a Berkshire Hathaway Company. Marmon Holdings, Inc is a global industrial company with more than 100 autonomous manufacturing and service businesses, organized within 11 groups. Marmon Holdings, Inc has over 20,000 employees worldwide and over 400 manufacturing and service facilities, with an an annual revenue of 10 billion. Marmon Holdings, Inc is probably the biggest company you've never heard of.