CDP stands for Carbon Disclosure Project, which is a not-for-profit charity that runs the global disclosure system for investors, companies, cities, states, and regions to manage their environmental impacts. CDP works with over 18,500 corporations, as well as over 550 cities and 100 states and regions to help them develop effective carbon emissions reduction strategies. The organization collects self-reported data from companies, which is supported by over 800 institutional investors with about US$100 trillion in assets. CDP Cities provides a platform for cities to measure, manage, and disclose their environmental data, and more than 500 cities are now measuring and disclosing environmental data annually.

In addition to the Carbon Disclosure Project, CDP also stands for Customer Data Platform. A customer data platform is software that collects and unifies first-party customer data from multiple sources to build a unified customer profile. This profile can then be used to deliver effective, personalized communication to customers across all channels. CDPs manage first-party data and consumer privacy and data rights by controlling the data flows between different marketing systems and managing consent.

Overall, CDP is an important organization that helps companies, cities, states, and regions manage their environmental impacts and develop effective carbon emissions reduction strategies. It is also a term used to describe customer data platforms, which are software tools that help businesses collect and unify customer data to deliver personalized communication to customers.