It began in 2018 with a basic premise, it wrote in a recent report: If organizations have no clear idea of where their supplier factories are located, how can they have any sense of their environmental or social conditions?

In the nearly three years since its launch, the free-to-use open-source platform has leveraged information from hundreds of contributors to map more than 64,000 garment-manufacturing facilities across nearly 120 countries, or roughly 85 percent to 90 percent of the entire apparel sector.