About ISC

Innovative business intelligence from a leader that matured with the fenestration industry

In 1979, Don Hornung founded Industrial Sales Corp. (“ISC”), a small, family organization of sales representatives helping to connect component suppliers with manufacturers of windows, doors and glass products. For nearly 40 years, ISC has cultivated strong relationships with industry-leading companies to bring products of the highest quality to our customers. With sales representatives strategically placed throughout the United States and four distribution centers, we take pride in our tradition of personalized customer service and bring you the value and dedication that has always been at the cornerstone of our corporate philosophy.

As we enter a period of key transformation, we have developed a proprietary system that provides deep insight into the window, door and glass industries. The IQ Cloud by ISCTM (‘IQ Cloud’) is the industry’s leading technology platform under research and development for over two years; the IQ Cloud includes a range of services, all of which complement each other and provide unique and innovative industry analytics and consultative solutions. Whether you are a supplier seeking to launch a new product or a manufacturer expanding into new markets, ISC has the cutting edge technology and services to help you achieve success.

We invite you to learn more about how ISC is supporting the window, door and glass industries through our innovative suite of services.

Digital Services

ISC Digital Services, a component of the IQ Cloud suite of services, is the industry’s leading analytics, financial modeling and dynamic communications platform. Sales Analytics empowers ISC to identify trends and opportunities within our marketplace. Our financial modeling program encompasses our National and Multi-Group Strategic initiative for growth. Through our marketing automation and communications platform, ISC is able to deliver to its trading partners industry updates, education and growth opportunities for sales optimization.

Learn more about Digital Services

Exchange by ISC®

Exchange by ISC®, a component of the IQ Cloud suite of services, is the industry’s excess inventory management system, connecting buyers and sellers to a wide variety of products. This online marketplace features real-time auction-style bidding or straight sales, and provides fast, easy transactions and secure payments. Users can generate revenue from selling excess inventory and equipment and find great deals on high-quality goods.

Learn more about the Exchange


ISC Penn Hudson Advisory, a component of the IQ Cloud suite of services, is the leading advisory firm in our industry offering guidance to companies dealing with macro issues and opportunities that impact their businesses. With deep insight, knowledge and experience across the window, door and glass industries, ISC Penn Hudson can help validate and develop your plan to advise the best opportunities for growth using our proprietary platform, Test Drive.

Learn more about Advisory


ISC Innovations, a component of the IQ Cloud suite of services, has extensive experience in the design, development and commercialization of technology and intellectual properties. We bring innovative thinking, thorough analysis and methodical execution to launch successful products and concepts to the market. We have been involved in many intellectual property, software and manufacturing ventures.

Learn more about Innovations