SEI

Sei or SEI may refer to:

Arts

• Sei (album), by Brazilian singer and composer Nando Reis
  • "Sei", the title-song and first single from that album

Organizations and companies

• Safety Equipment Institute, a private, non-profit organization established to test safety and protective products
• Scuba Educators International, a non-profit diver training organization
• SEI Investments Company, a financial services company headquartered in the United States
• Slough Estates International, the former name for SEGRO
• Software Engineering Institute, a federally funded research and development center at Carnegie Mellon University
• SpaceWorks Enterprises, Inc., a small aerospace engineering company in the United States
• Stockholm Environment Institute, a non-profit institute that specializes in sustainable development and environmental issues
• Sustainable Endowments Institute, a special project of Rockefeller Philanthropy Advisors, Inc, the Sustainable Endowments Institute (SEI) has pioneered research, education and outreach to advance resilient institutional responses to the climate crisis.
• Sumitomo Electric Industries, a manufacturer in automotive, information and communications, electronics, environment and energy, and industrial materials
• SUNY Eye Institute, a medical and basic sciences research institute in New York

People

• Sei Ashina (born 1983), Japanese actress
• Indrek Sei (born 1972), Estonian freestyle swimmer

Other uses

• Sei whale, a baleen whale
• Se'i, traditional bacon from Timor, Indonesia
• Seebeck effect imaging, uses a laser to generate thermal gradients in conductors in order to locate electrically floating conductors
• Secondary electron image, a type of imaging in scanning electron microscopes to view sample topography
• Seri language, spoken in two Mexican villages
• Service endpoint interface, a term used in Java Platform, Enterprise Edition when exposing Enterprise JavaBean as web service
• Social-Emotional Intelligence (see Emotional Intelligence)
• Solid-electrolyte interphase (see Lithium-ion battery)
• Space Exploration Initiative, a plan envisioned by former U.S. President George H.W. Bush with manned Moon and Mars missions
• Spanish East Indies, a former Spanish colony comprising the Philippines and most of Micronesia