Their website: http://www.surreynanosystems.com/
Press release for VantaBlack: http://www.surreynanosystems.com/news/19/
Mid-2013 press releases [1][2] talk about using "vertically-aligned carbon nanotube (VANTA) arrays" and cite similar absorption rates as the linked article.
Okay, now I'm interested.
1: http://www.surreynanosystems.com/news/17/
2: http://www.surreynanosystems.com/news/16/