Blockstream is a technology company that focuses on developing solutions for the Bitcoin network and blockchain technology. Founded in 2014, it aims to enhance the functionality and scalability of Bitcoin through various projects, including the Liquid Network, which is a sidechain designed to facilitate faster and more secure transactions. The company is also known for its contributions to open-source software and its efforts to promote the adoption of Bitcoin and blockchain technology. By providing tools and services, Blockstream plays a significant role in the ongoing development of the cryptocurrency ecosystem.