Sabiedrība ar ierobežotu atbildību "Inerto materiālu serviss" is a Latvian limited liability company registered in 2001. Its primary line of business is operation of gravel and sand pits and mining of clay and kaolin (NACE 08.12). In 2025 the company reported €3.02M in revenue and employed approximately 11–25 people, placing it in the small-enterprise tier. Revenue grew 28% year-over-year, indicating an expanding operation.