Asphalt Plus, Inc. (API) is a family-owned and operated company based in Billings, MT, providing parking lot striping, sealcoating, paving, resurfacing, and repair services. Established in 2005, API serves Montana, Wyoming, Colorado, North Dakota, and South Dakota, handling both private and public projects with a focus on safety, security, and consistent delivery. The company offers a wide range of capabilities including asphalt overlays, crack sealing, and chip sealing, backed by 88 years of combined civil and building construction experience. API is a certified Woman Owned Small Business and holds multiple certifications including 8(a) and DBE, supporting diverse and complex projects across the region.

Hardrives Asphalt is a parking lot paving contractor based in Billings, MT. They provide paving services focused on parking lots and related road work in the area. The company is noted for completing projects that include expanding parking spaces and road paving.