The core activities of the companies are:
1. Kimberly-Clark: Manufacturing and distribution of consumer goods such as hygiene products, tissue products, and consumables.
2. LIXIL: Development and manufacturing of water and living products, including sanitary ceramics, faucets, and other household appliances.
3. Unilever: Manufacturing and distribution of consumer goods such as food, beverages, personal care products, household cleaning products, and ice cream.
The Toilet Board Coalition is not a traditional company, but a coalition of companies that work together to improve sanitation conditions in developing countries. Its core activity is promoting sustainable sanitation solutions and supporting companies in developing products and services that improve sanitation conditions in these countries.