S&I

AcronymDefinition
S&IStrategy and Innovation (various companies)
S&IScience & Industry (gaming, Half-Life mod)
S&ISecurity and Intelligence (various organizations)
S&ISavings and Investment
S&ISystems and Information
S&ISupply and Installation
S&ISupervision and Inspection (USACE)
S&ISalt and Ice
S&ISupervision and Interpretation (medical)
S&ISurvey & Investigation
S&ISensing and Imaging (terahertz science)
S&IScience and Innovation Network (British Foreign and Commonwealth Office; UK)
S&ISuction and Irrigation (surgery)
S&IStandardization & Interoperability
S&ISeminaries and Institutes of Religion
S&ISwitchgear and Instrumentation Limited (electrical control)