The most founder-focused event on Earth. Pre-register to Slush 2025: slush.org/pre-register The most founder-focused event on Earth. Coming again on Nov 19–20, 2025 in Helsinki, Finland. Pre-register now: slush.org/pre-register Slush is a not-for-profit on a mission to help and create founders to change the world. Founded in 2008, Slush annually hosts the world's leading startup event in Helsinki, Finland. Slush is run by students and recent graduates. International, High-growth, Startups, and Investors

Connecting Minds. Advancing Light. SPIE is the international society for optics and photonics. We bring engineers, scientists, students, and business professionals together to advance light-based science and technology. Over the past five years, we have invested more than $25 million in the international optics community through our advocacy and support, including scholarships, educational resources, travel grants, endowed gifts, and public policy development. Research Publications, Conferences, Education, Scholarships, Exhibitions, Industry, Optics, Photonics, Not-for-profit, Science, Engineering, Light-based research, International Society, Photonics West, Outreach, Membership Society, and Equity, Diversity, and Inclusion

Sectors: Research