While igprof was created by CMS for CMS it has been widely used by other LHC experiments, in particular ATLAS, and other groups inside CERN structure.
Outside HEP it has been used by the Geant4 collaboration, which provides a toolkit for the simulation of the passage of particles through matter to serve a number of different clients which range from medical research, to space industry.
IgProf has been guest star of a number of tutorials held annually at the INFN international school on “Architectures, tools, and methodologies for developing efficient large scale scientific computing applications” (ESC).
Finally Lassi Tuura has been contributing back to the community his changes to libunwind, initially developed to speedup igprof, which have then been used by a number of industry players, like Facebook and Google.