25 Fantastic Logo Designs - Corporate Identity by Paragon Marketing Communications
Geometric Logos Bundle OFF by Davide Bassu on Creative Market
This is an amazing logo that has a lot of movement and would work nicely in both color or black and white. The use of proximity is excellent to form the "moving" wings of the hummingbird.
Dribbble - Dia Holdings - Logo grid system by Bratus ™
James St Louis Monogram Submitted by James St Louis. The website has some neat logos on it and they were all award winning.
Dribbble - Black Cat Lounge by Jacob Weaver Clever Examples of Negative Space Logos)