Hotstart Inc. is making parts for engine block heating systems out of its 90,000-square-foot facility at 6715 E. Mission, where the Spokane Valley-based manufacturer has just completed a $1.1 million renovation project.

Four Inland Northwest-based businesses have made Inc. business magazine’s annual list of the 5,000 fastest growing companies in the country.

Solar and renewable energy system installations on commercial buildings in Spokane have increased since the One Big Beautiful Bill Act was passed in 2025, as building owners and businesses hurry to perform planned projects before a clean energy tax credit ends.