The Coalition for Deep Space Exploration (CDSE) is a Washington, DC nonprofit 501(c)(6) advocacy association for sustained human space exploration, deep-space science, and space-technology leadership. It represents more than fifty space-industry businesses and other stakeholders, advocates before Congress and the Administration for durable exploration policy and budgets, and convenes industry, government, and research partners around Artemis, lunar and deep-space systems, science, and technology. Current 2023–2026 materials document continuing leadership, board activity, member advocacy, Artemis communications, and the Coalition’s ongoing public-policy programme.