SRF

• Sudan Revolutionary Front, alliance of armed groups formed in 2011
• Syria Revolutionaries Front, formed in December 2013
• Schweizer Radio und Fernsehen, German-language broadcaster in Switzerland
• SRF Limited, an Indian manufacturing company
• SENS Research Foundation, on the medicine of ageing, Mountain View, California, USA
• Supercentenarian Research Foundation, on why supercentenarians live longer than most and why they die
• Sevin Rosen Funds, a Texas-based venture capital firm

• Self resonant frequency, of an electronic component
• Serum response factor, in genetics
• Server Response File, ATL Server
• Solid recovered fuel, from waste
• Superconducting radio frequency technology, superconductors in RF devices
• .srf, computer file extension for a raw image file

• Self-Realization Fellowship, spiritual organization
• Silk Road Fund, Chinese state backed investment fund
• SleepResearch Facility, a musician
• Spec Racer Ford, a class of racing car
• State revolving fund, a type of fund administered by a US state
• Scholar Rescue Fund, a fund that provides fellowships to scholars whose lives are threatened in their home countries
• Strategic Rocket Forces of the Russian Federation
• Systematic reconnaissance flight, a scientific method in wildlife survey

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