Those logos are shown in the greetings part of the demo Comaland.
All are done for C64 by using sprites. The low resolution logos are three MultiColor objects each, the high resolution are created using 4+4 HiRes Sprites (btw most of the hires logos are not included in the party version of the demo).

Restrictions MultiColor Sprites:
12x21 pixels per sprite, pixel dimension 2x1,
4 Colors - 1 transparent background color, 2 fixed colors per screen, 1 color free to choose per sprite

Restrictions:
24x21 pixels per sprite, pixel dimension 1x1,
2 colors - 1 transparent background color, 1 color free to choose per sprite