This is version 2 of our intro logo. As of today it's the public facing one on the website. This is a mixture of trim paths to reveal the line art as well as masks to do the wormhole effect.
Note that use of this is covered under CC 2.0 but as it is a company logo permission to use it to represent yourself or organization is strictly prohibited. If you want to know how I did this or any other animation just ask. I love to help teach others!