A list of some of the street gangs that are active on Earth & Mars:

Earth:
Atlanta:
Anarchist Oracle
Boston
Amazing Blasters
Ancients
Bane-Sidhe
The Dragonslayers
Hellriders
Iron Wolves
Mama’s Boys (more of a “under the street” gang, really)
The Roxxx
Cape Town
Numbers Gang
Cara’Sir
Ancients
Blindfish
Dog Soldiers
First Nations
Laesa
The Shooters
Sons of Gimli
Souldrinkers
The Spans
Chicago
162’s
Anarchist Oracle
Burning Angels
Chemical Boys
Desolation Angels
Fear the Dark
Fleshmongers
Horde
Midwest Pirates Guild
Swamp Thangs
Wings of Predation
DC
Death To All
GeMiTo
Capotrenos
Wings of Predation
Hong Kong
9×9
The Gentlemen
Whampoa
LA
162’s
Ancients
Blindfish
Los Hermanos del Mar
Lagos
Area Boys
Babakku
Laiya
London
Shadowtown Shambles
Matrix
The Panopticons
Metropole
Codigo 525
Open Sourcerers
The Tribunal
Neo-Tokyo
Konton-Shi
New Orleans:
Anarchist Oracle
NYC
162’s
Anarchist Oracle
Merlyn’s Pride
Seattle
162’s
Anarchist Oracle (ACHE only)
Ancients
Blindfish
Blood Brothers
Blood Mountain Boys
Chulos
Crimson Crush
Death To All (ACHE only)
The Disassemblers
Dogmen
First Nations
405 Hellhounds
Halloweeners
Laesa
Night Hunters
Ragers
Skraacha aka “Scorchers”
The Spectres
Spikes
Troll Killers
Wings of Predation (ACHE only)

Undercity

Ancients
Black Shadows
Mad Martians
Problem Children

The parts of the undercity controlled by street gangs are your standard z-zones/slums/favelas/innercity/etc. The cops don’t go there unless they absolutely can’t avoid it, most businesses are local, the gangs run pretty much everything, and the sun sure as shit don’t shine-these areas are the least desirable turf in the undercity (aside from the core). This hasn’t stopped the street gangs from constantly going to war over who owns which blocks, though. Street gang turf is sandwiched between two warring Vory families on the southeast part of the city, and is heavily balkanized.

The next level up from the street gangs is the criminal syndicates, which run big swaths of both the under and upper city-of course they’ve got competition in the upper city from the government and the corps and megacorps, but they get by. They mostly don’t interfere with the street gangs, figuring they’re too busy fucking each other over to pose much of a threat to “organized” crime. If one of the gangs gets to powerful, or foolishly decides to encroach on any of the syndicates, they put them down right quick.