This document discusses how Danish companies can become suppliers to large science projects in Europe, known as "Big Science". It notes that Denmark invests tens of millions annually in projects like CERN and ESA. Big Science facilities purchase billions worth of goods and services each year from industry. The Big Science Secretariat helps Danish companies get involved by providing information on tenders, making connections between companies and facilities, and supporting skills development and partnerships. Their goal is to support Danish businesses winning contracts and accessing new markets through their country's investments in large science projects.