Sony Pictures Studios is a film studio and a subsidiary of Sony based in Culver City, California that owns the film rights to Spider-Man, and co-produces, finances and distributes the Spider-Man films shared with Marvel Studios.
On February 9, 2015, Sony Pictures Studios and Marvel Studios announced that Spider-Man would appear in the Marvel Cinematic Universe, with the character first appearing in Captain America: Civil War and then in Spider-Man: Homecoming which was co-produced by Marvel Studios and Sony Pictures. On July 28, 2017, Sony Pictures was confirmed to continue to own, finance, distribute and have final creative control of the Spider-Man films in the MCU.
On April 11, 2015, Kevin Feige revealed that Marvel had been working to bring Spider-Man into the MCU since at least October 2014, when they announced their full slate of Phase Three films, saying, "Marvel doesn't announce anything officially until it's set in stone. So we went forward with that Plan A in October, with the Plan B being, if [the deal] were to happen with Sony, how it would all shift. We've been thinking about [the Spider-Man film] as long as we've been thinking about Phase Three."
Sony Pictures is also developing its own shared universe independently from Marvel Studios, having started with the release of Venom in October 2018, and has been described by Amy Pascal to exist "in the same world" as Spider-Man: Homecoming. However, it was confirmed in July 2018 that Venom would not be part of the MCU as previously suggested by Pascal, but that it would rather be the first installment in its own shared universe entitled "Sony's Universe of Marvel Characters", which is centered on Spider-Man characters from Marvel Comics that Sony Pictures possesses the rights to.