Insulation Distributor IDI Acquired Design North Supply

The national distributor has purchased the Montana-based firm to expand its specialized insulation offerings.

Updated on Sept. 28, 2026 in Business Strategy

Rolls of industrial insulation stored on warehouse metal shelving, reflecting a logistics and supply chain environment. — Insulation distributor IDI acquired Montana-based Design North Supply on Tuesday, integrating 70 regional locations to expand its Northwestern United States footprint. AI Illustration. Upload story photo >

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Insulation distributor IDI has acquired Design North Supply to bolster its reach across the Northwestern United States. The deal brings Design North's regional expertise into IDI's existing national network of 70 locations.

Why it matters

The acquisition aligns with IDI's strategic expansion plans by integrating a company that has demonstrated consistent growth since its inception. By combining resources, the firms aim to offer a more comprehensive portfolio of materials to a wider customer base.

IDI operates 70 locations across the country while Design North Supply serves customers across seven states. Design North was founded in 2020, while its parent company IDI has been in operation since 1979.

The players

IDI

This organization is a long-standing distributor of insulation materials that operates 70 locations nationwide.

Design North Supply

This firm is a regional supplier of spray foam and polyurea products headquartered in Billings, Montana.

The details

Design North Supply, which maintains headquarters in Billings, Montana, and an additional location in Anchorage, Alaska, specializes in distributing spray foam, polyurea, and related equipment. Through this merger, existing customers will maintain their current professional contacts while gaining access to IDI's broader inventory of fiberglass, mineral wool, and cellulose products.

IDI was founded in 1979.
Design North Supply was founded in 2020.
The acquisition of Design North Supply was finalized in September 2026.

Market Landscape

The acquisition reflects the ongoing consolidation trend in the U.S. construction materials distribution market as national firms seek to capture regional specialized expertise. This move positions IDI to better compete against other large-scale building product suppliers by scaling its service area across the Northwestern states.

Customers of Design North Supply will continue working with their current teams, ensuring continuity in service and support. These clients will now benefit from expanded access to a wider catalog of insulation materials, including fiberglass and cellulose, through the larger IDI network.

The takeaway

This merger demonstrates the value of integrating regional specialists into larger national distribution networks to streamline construction supply chains. Clients should review the new, expanded product lists now available to them following the transition.