You can't because, unless you're looking at something like a Boeing Business Jet, executive jets don't come that big. A BBJ is a Boeing 737 with a different interior. For 25 people, you're looking at something like a CRJ-200, which is a regional jet with 50 seats and two turbofans. Google "CRJ-200 charter" and you'll find a few Part 135 charter operations that have them.
25-50 passengers
369/25 - jet
Ebony Jet Showcase - 1982 1987-09-25 was released on: USA: 25 September 1987
Ebony Jet Showcase - 1982 1992-09-25 was released on: USA: 25 September 1992
Ebony Jet Showcase - 1982 1991-10-25 was released on: USA: 25 October 1991
Ebony Jet Showcase - 1982 1985-10-25 was released on: USA: 25 October 1985
Kawasaki Jet Ski was created on 2008-04-25.
Jet Naessens died on June 25, 2010, in Antwerpen, Flanders, Belgium.
Jet McDonald was born on October 25, 1927, in Ashland, Kentucky, USA.
25
Actors Entertainment - 2009 Passengers was released on: USA: 25 August 2010
I would estimate 21- 25 countries can and do produce jet engines