- Stern Pinball (sternpinball.com) - Great, modern themes, biggest manufacturer. Recently released The Mandalorian, Godzilla, Foo Fighters, etc. Easiest by far to find to play and / or purchase via distributors.
- Jersey Jack Pinball (jerseyjackpinball.com) - Tend to be more collector quality machines. Recently released Guns n' Roses (developed with Slash), Toy Story 4, and the Godfather.
- Spooky Pinball (spookypinball.com) - Initially home brew pinball, built into much larger company. Releases include things like Rick & Morty, Halloween, Ultraman, and Scooby Doo.
- Chicago Gaming Company (chicago-gaming.com) - Involved in many things, but from a pinball standpoint, mostly have made remakes of popular 90's games with more modern hardware (Medieval Madness, Attack From Mars, Monster Bash, Cactus Canyon).
- Multimorphic (multimorphic.com) - Advanced pinball system, designed to allow changing of games in the cabinet (ie partial playfield swaps). Large screen built into playfield, ball tracking, etc. Games have been mostly original themes.
There are other smaller manufacturers as well (https://en.m.wikipedia.org/wiki/List_of_pinball_manufacturer...) that have made games of various types.
Typically each manufacturer will release a given title, at typically 2-3 "trim" levels (ie, Stern calls these Pro / Premium / LE, Jersey Jack has called them Standard Edition, Limited Edition, Collectors Edition). Price and features go up with the trim level.