I like FedEx logo. It has a simple design with the “hidden” arrow in the whitespace (between E and X). Have you noticed that?
And of course I love Neuton.AI logo and the brand in general. It has a beautiful story. We've all heard the story when a young Newton was sitting beneath an apple tree contemplating the universe. Suddenly an apple hit him on the head. Eureka! - he shouted. In an instant, he got a brilliant idea that lay in the foundation of the gravity theory. This story and one of the world's brightest scientists inspired us to our current logo - a head hit by half a dozen of apples - and the name Neuton.AI, a disruptive neural network and AutoML platform.
My favorite startup logo is stripe. The font is so simple, and yet with the colors and the overall design, they manage to stand out a lot. Top class work.
I hope you don't mind that I mention it, but I'm building a logo design product myself.
It's a tool to brand your startup without hiring a designer. You answer questions about your project and we give you: colors, fonts, logo design.
I made it with my wife who is an expert brand designer. You can see it here https://www.logology.co/
Always curious to get feedback, we haven't officially launched yet 😅
I'm a big fan of simple logos with hidden/double meaning that convey something core about the brand. Some favorites are Tostitos, Le Tour de France, Pittsburgh Zoo, and the London Symphony Orchestra (LSO).