Sphinx Systems Limited was a Swiss-based manufacturer of high quality pistols used mainly by special forces, elite police units and sports shooters.

All custom-made Sphinx pistols except the AT380 were shipped with an actual test target, confirming the specific firearm's accuracy.

The US-built SPD Compact, based largely on the 3000 Series, was Sphinx's first mass-produced firearm.

Sphinx products were historically imported to the United States by SILE corporation, and until 2008 by SABRE Defense Industries.

[2] In July 2016 Sphinx went out of business, due primarily to a Federal Council ban on the supply of weapon parts to the Arab region.