Amazon has deeper pockets than almost anyone else. With their acquisition of MGM, they gained a massive library (including the James Bond franchise) to bolster their Prime Video service.
A production company, not a studio, but a brand unto itself. Bad Robot is responsible for Lost, Fringe, Westworld, and Lovecraft Country. Their deal with Warner Bros. keeps them in the A-list.
Paramount struggled for a decade but has recently roared back with a focus on original, high-stakes theatrical releases and a robust streaming service (Paramount+).
After acquiring MGM for $8.5 billion, Amazon became a major player. Their strategy focuses on expensive, director-driven projects that build brand prestige for Prime Video.
Founded in 1912, Universal is the oldest major film studio in the United States. Its early dominance came from the Universal Monsters franchise (Dracula, Frankenstein, The Mummy)—productions that defined the horror genre. Today, Universal is a relentless hit-making machine.