Our History

Founded as Edge Seal Technologies in 1987, INTIGRAL quickly became the first supplier to deliver thousands of insulated glass units sequenced for production – within 24 hours! Serving one customer at that time, EST was the first in the industry to supply insulating glass units to a window company on an in-sourcing basis (under the same roof).

To better identify the company and products, the name was changed to INTIGRAL, Inc. in September 2007. The company continues to be owned by co-founders Edmund Leopold and Dick Dietrich.

Intigral Today

From our four sourcing relationships – Outsourcing, Selective Sourcing, Insourcing, and Dock Management – customers can choose the supply chain model that best aligns with their business needs. Each allows window and door makers to move beyond the product constraints, inflexibility and capital requirements of in-house glass fabrication.

Key to integrating with our customers is five critical values: independence; immediate product variety; product development; logistical and systems integration; and speed to completion. Combined, these allow window and door manufacturers to improve service levels, expand product options, lead with new IG technologies and streamline window making operations.