LEAH / Impact First

Impact First (formerly the London EA Hub / LEAH) is a coworking space and career-development programme for effective altruism professionals in central London, originally founded by Arcadia Impact in 2022. The space provides desks for individuals working on high-impact projects across AI safety, biosecurity, global health, and animal welfare, alongside fellowships, career advising, and networking events for students and early-career professionals.