Insulation Distributor IDI Acquired Design North Supply

The deal gives Montana-based Design North customers access to IDI’s national inventory of fiberglass and mineral wool.

Updated on Sept. 28, 2026 in Business Strategy

Isometric editorial illustration of neatly stacked industrial insulation materials on a pallet, representing corporate logistics and supply chain integration. — National distributor IDI acquired Design North Supply in September 2026, integrating their regional distribution network across the U.S. West and Northwest. AI Illustration. Upload story photo >

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National insulation distributor IDI acquired Design North Supply in September 2026. The move expands IDI's market reach through Design North's existing footprint across seven states in the U.S. West and Northwest.

Why it matters

The acquisition allows IDI to integrate its national supply chain of fiberglass, mineral wool, and cellulose with Design North's regional distribution network. IDI pursued the deal after Design North demonstrated consistent growth that aligned with its internal expansion objectives.

IDI operates 70 locations across the United States, scaling up with the addition of Design North Supply’s operations in Billings, Montana, and Anchorage, Alaska. The target company, which serves seven states, was founded in 2020.

The players

IDI

A long-standing national distributor of insulation materials with 70 locations across the United States.

Design North Supply

A regional distributor of spray foam, polyurea, coatings, and equipment founded in 2020 and headquartered in Billings, Montana.

The details

Design North Supply will continue to operate under its existing structure, with current customers retaining their existing point-of-contact teams. The integration grants these regional customers access to IDI's broader inventory, which includes fiberglass, mineral wool, and cellulose, diversifying the spray foam and polyurea offerings previously focused on by Design North. This transition allows for centralized procurement efficiencies while maintaining local service capabilities.

IDI was founded in 1979.
Design North Supply was founded in 2020.
IDI acquired Design North Supply in September 2026.

Market Landscape

This acquisition follows the industry-wide trend of national insulation distributors scaling their footprint by acquiring regional specialists. It mirrors established consolidation patterns where national firms integrate specialized local inventory to increase competitive density.

Operators in the insulation sector should evaluate whether their current suppliers are similarly expanding or if they are candidates for acquisition. Existing customers of the combined entity should monitor whether product lead times or local service levels change during the integration period.

The takeaway

The acquisition underscores the importance of regional growth markers in attracting national buyers. Operators looking to exit or scale should track how their regional performance metrics align with the expansion strategies of major national distributors.