Allied Interior Products, A Beacon Roofing Supply Company is a distributor of building materials. The company’s main business lines include Drywall Supplies, Lath & Furring–Metal, Gypsum, and windows. This Pennsylvania-based distributor has been in business for three years. Allied has four locations, and generates $150,674 in annual revenue. This company has about 70 employees and employs about 100 people.