Who We Are The Armstrong Group is a family owned and operated collection of diverse companies. What began in 1946 as Armstrong County Line Construction, founded by Jud L. Sedwick in Kittanning, PA, has now grown into an organization that encompasses multiple industries and employs over 2,400 individuals nationwide. Our brands include Armstrong Utilities, Guardian Protection, Armstrong Development, 4Front Solutions, Twin Pops, and Armstrong Comfort Solutions. Armstrong is an Equal Opportunity Employer. The Armstrong Group, a family owned and operated business, now employs over 2,000 people across the nation. The company continues to value strong relationships with its employees and close ties to the communities it serves.