Magnum Logo and Tagline Magnum is an ice cream brand owned by the British/Dutch Unilever company and sold as part of the Heartbrand line of products in most countries. The ice cream today known as Magnum was developed in Belgium at the Ola laboratory (Baasrode) in cooperation with the Belgian chocolate producer Callebaut and released in Germany in January 1989 as an upmarket ice cream for the existing Nogger brand. It was originally manufactured by Frisko in Denmark. Quick Info \tOwner : Unilver \tCountry : Belgium \tWebsite : www.magnumicecream.com Magnum Ice Cream Tagline \tFor Pleasure Seekers \tTake Pleasure Seriously \tEnjoy the Royal Treatment Magnum Ice Cream Logo Magnum Ice Cream Logo Tags: Magnum Ice Cream Logo. Magnum Ice Cream slogan, Magnum Ice Cream new tagline, Magnum Ice Cream punchline, Magnum Ice Cream vision.