Philly Pretzel Factory is the world's largest Philly-style pretzel bakery with over 100 franchised locations and growing. Each and every pretzel is hand twisted and made from the finest ingredients daily to ensure quality and freshness. Philly Pretzel Factory is the world's largest Philly-style pretzel bakery with over 100 franchised locations and growing. Each and every pretzel is hand twisted and made from the finest ingredients daily to ensure quality and freshness.