Alloy Entertainment

Background
Alloy Entertainment (formerly Daniel Weiss Associates and 17th Street Productions) is a book packaging and television production company known for producing Gossip Girl (both the TV series, and the book series), founded in 1996. On June 11, 2012, Warner Bros. Television acquired the company.

1st Logo (September 19, 2007-March 31, 2022)
Logo: On a -white gradient background, we see the text "Century Gothic" with a reflection below it with the text in Century Gothic Bold, and a four-leaf clover above them, with the top left leaf as an outline. The logo shines as the background fades to full white.

Variant: On Significant Mother, the background is completely white for the entire duration of the logo.

Technique: CGI.

Music/Sounds: None, a shining sound or the end theme.

Availability: Common. Seen on shows like Gossip Girl, The Vampire Diaries, Pretty Little Liars, The 100, The Originals and Legacies. It was also seen on How to Rock and the Disney Channel Original Movie Frenemies.

2nd Logo (August 7, 2020-)
Logo: On a light blue-white gradient background, we see various layers of the four-leaf clover logo in zooming out and rotating. Once the clover is almost finished forming, the company name from before rotates in letter-by-letter below the clover, with a shadow forming below them.

Variant: A short version that starts when the text rotates in exists. The clover is already formed here.

Technique: CGI.

Music/Sounds: None or the closing theme of the show.

Availability: First seen on the movie Work It (2020), and later appeared on the 2021 iteration of Gossip Girl, Season 3 of You, Season 4 of Legacies (starting with episode 16) and Pretty Little Liars: Original Sin.