Sabiedrība ar ierobežotu atbildību "Carbon energy systems" is a Latvian limited liability company registered in 2013. Its primary line of business is manufacture of coke oven products (NACE 19.10). In 2025 the company reported €30K in revenue and employed approximately 6–10 people, placing it in the small-enterprise tier. Revenue grew 233% year-over-year, indicating an expanding operation.