I'm confused by the title, what does this have to do with atoms, apart from the rather undistinguishing fact that its product and indeed its founders are made from them?
1- 3D printing, (production with "atoms") and
2- social fundraising
such business are unlikely be as easy to start. They would require access to substantially more funds and manufacturing equipment.
Edit: They try to tie the social fundraising in to the "atoms" theme by referencing electrons, but it falls a bit flat.