Elite producer groups & duos, an unranked thread

Feel free to add any duos that I missed.

The Neptunes- The Virginia Beach duo was mentored by Teddy Riley & earned co-producer credits. NORE's Superthug was the first major solo hit, which led to them creating hits for Jay Z, Snoop Dogg & others.
Essential tracks: Grindin', Southern Hospitality, Drop It Like It’s Hot.

The Bomb Squad- Pictured w/ Public Enemy, a group they work with frequently. Includes Chuck D., Hank & Keith Shocklee, Eric Sadler, and Gary G-Wiz & produced for Ice Cube, Slick Rick, Rakim, and LL Cool J.
Essential tracks: Fight the Power, Endangered Species, Steppin to the AM

Da Beatminerz- Their mainstays are brothers Mr. Walt & DJ Evil Dee. They crafted the Boot Camp Clik's jazzy, rugged sound that defined 90s Brooklyn. In addition to BCC, they also produced for KRS One, M.O.P, & De La Soul.
Essential tracks: Who Got Da Props?, Bucktown, Astronomy

Organized Noize-The Dungeon Family's resident producers got their name from the basement where they produced for Outkast, Goodie Mob, & others. Their funky, soulful beats amplified the something that the South had to say.
Essential tracks: Player's Ball, Cell Therapy, Rosa Parks.

Beats by the Pound- No Limit's in house producers worked at a rapid rate, crafted over 30 albums between 1995-2000. Their hard hitting beats influenced by New Orleans bounce scene put the city on the map.
Essential tracks: Make Em Say Ugh, It Ain't My Fault, Down for My Nz

Trackmasters- This duo was a go-to hit maker in the late 90s. Taking elements of Boom Bap & adding upbeat samples, they found the recipe for tracks that were radio & street friendly. Produced for Nas, Cam'ron, Jay Z.
Essential Tracks: I Shot Ya, Street Dreams, How to Rob.

Soul Council- The crew led by 9th Wonder has quietly built a solid resume producing for mostly Jamla projects, including albums by Rapsody and Murs & 9th Wonder. The team also produced full projects for Skyzoo & Talib Kweli.
Essential tracks: OooWee, Let Me Talk, Understand.

Hittmen- Bad Boy's team of producers created radio friendly hits & street anthems. At times producers were individually credited, other times it was credited as The Hitmen. Includes D-Dot, Stevie J., & Amen Ra.
Essential tracks: Big Poppa, Hypnotize, Money Power Respect.