Bungie

Background
Bungie is an American video game developer based in Bellevue, Washington. Founded in May 1991 by Alex Seropian and originally headquartered in Chicago, Illinois, the studio is best known for their work with Microsoft during the latter's ownership, creating the acclaimed Halo series of console FPS games. In October 2007, Bungie split from Microsoft and signed a ten-year publishing deal with Activision in April 2010, while Microsoft retained ownership of the Halo franchise. In January 2019, the studio ended its partnership with Activision, and was acquired by Sony Interactive Entertainment in July 2022; despite this, Bungie continues to publish its games on its own.

1st Logo (November 7, 1997-September 27, 2001)
Logo: We see a piece of rock falling inside a giant whirlwind in space, possibly the black hole, which has a  pillar of light coming from its center. The rock causes an explosion, and as the whirlwind blows around the dot, the neon word "BUNGIE" quickly comes up and the dot settles above the letter "I". The starfield fades out.

Technique: CGI.

Audio: Background ambient and explosion.

Availability: Seen on Oni and the Myth games.

2nd Logo (November 15, 2001-December 4, 2007)
Logo: On a white background, we see some moving bacteria. We zoom out, and the bacterias form a dot colored like the planet Earth, in position above the word "BUNGIE". The dot quickly colors itself full.

Variant: A wide-screen version exists for Halo 2 Vista.

Technique: CGI.

Audio: The drum aspect of the "Covenant Dance" track from Halo and a choir singing at the end.

Audio Variant: On Halo 2, a type of rock music plays over the fanfare.

Availability: Seen on Halo and its sequel for the Xbox, as well as their respective PC ports.

3rd Logo (September 25, 2007-May 2010)
Logo: On a black background, we see the Bungie logo form from many electric particles, zoom in a bit, then dissolve into the same particles.

Variant: On Halo 3 Beta and Halo: Reach Beta, the logo fades in, zooms in, then fades out.

Technique: 2D animation.

Audio: The Halo 3 theme.

Availability: Seen on Halo 3, Halo 3 Beta, and Halo: Reach Beta for the Xbox 360.

4th Logo (September 22, 2009)
Logo: On a thunderstorm background, we see the Bungie logo zoom in, but in and in a different font.

Technique: Same as before.

Audio: A thunderstorm crack and eerie music.

Availability: Seen on Halo 3 ODST for the Xbox 360.

5th Logo (September 14, 2010)
Logo: On a black background, the Bungie logo from before fades in, zooms in, then fades out.

Technique: Same as before.

Audio: A little fanfare.

Availability: Seen on Halo: Reach for the Xbox 360.

6th Logo (September 9, 2014-)
Logo: Unknown.

Technique: Unknown.

Audio: Unknown.

Availability: Seen on Destiny and its sequel on PS4 and Xbox One.