Other
- Securities and Investments Board, a UK regulator now known as the Financial Services Authority
- Borneo Evangelical Church or the Sidang Injil Borneo
- Sibiti Airport, an airport in the Republic of the Congo with this IATA airport code
- Special Investigation Branch, the detective branches of all three British military police arms.
- Student Welfare Organisation in Bergen or Studentsamskipnaden i Bergen
- Studentenvereniging voor Internationale Betrekkingen, the acronym in Dutch of the Dutch United Nations Student Association (DUNSA)
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