philips
Billabong
The Pittsburgh Steelers sometimes have a black wave on their merchandise, but I couldn't find a specific company with a black wave for a logo.
BitTorrent
The logo you are describing is likely the logo of the music streaming service, Tidal. Tidal's logo features a purple circle with white wave lines, symbolizing sound waves and the platform's focus on high-fidelity music streaming. If you are thinking of a different logo, please provide additional details for clarification.
The crown logo in the logo quiz is likely 'Corona' the Mexican beer.
because its the smart logo
The logo featuring a sine wave and a dot belongs to the audio technology company, Sonic Foundry. The design symbolizes sound waves, reflecting the company's focus on audio production and technology. This visually represents their expertise in audio editing and sound-related services.
A logo artist is a person that designs a logo. It is just another name for logo designer.
Logo
A square logo
A square logo