About Porter Corp.

Porter Corp, founded in 1964 as W. H. Porter, is a company focused on innovative architectural structures. Starting as one of the first producers of SIPS (structural insulated panels), the company developed the brand PorterSIPs to manufacture high performance building systems that combine structure and insulation into one large rigid panel. Years later, to help expand the PorterSIPs construction, Porter Corp developed the first tubular bolt-together steel frame with concealed bolts. This product, marketed as Poligon, is now the leader in the design, engineering, and manufacturing of shade coverings for applications in steel, fabric, and wood.

In 2016, Porter Corp expanded even further when it was purchased by Playcore, a Chattanooga, TN based company. Together we focus on ‘Delighting the Customer’ with a continued excellence in service and product.

PlayCore helps build stronger communities around the world by advancing play and recreation through research, programs, and partnerships. We infuse this learning into our complete family of brands.

We combine best in class planning and education programs with the most comprehensive array of recreation products available to create solutions that match the unique needs of each community we serve. To learn more, log on to www.playcore.com


The Porter Corp campus in Holland Michigan is home to over 100,000 s.f. of manufacturing facilities, corporate offices, shelters, prototypes and R & D ventures. Porter Corp has the industry’s most advanced tubular steel and SIPs manufacturing operations, which includes multiple CNC machines in flexible manufacturing cells. Within the framework of Lean Manufacturing, we take on programs to reduce cost, reduce customer lead time, reduce inventory, and improve on-time delivery. Porter Corp easily and efficiently produces over 1,000 buildings annually.


Our 135 employees are dedicated to providing our customers with the best products and service available in our industry. We are proud of our strong design and engineering capabilities and customer oriented office staff. We are continually evaluating and improving our processes to ensure that our buildings are the best quality and value.

Current openings