There is no way that I can list them all nor the number of times I have seen them, so here is just a few.
Most Memorable:
Slayer & Fear Factory in a HS gymnasium in Charlotte, NC.... Bass was so painful since the place was tiny.
Suicidal Tendencies at the Rialto Theater in Raleigh, NC... Rawest Mosh Pit I have ever been in.
Metallica
Slayer
Fear Factory
Iron Maiden
Ozzy Osbourne
Black Sabbath
Type O Negative
Anthrax
Queensryche
Wrathchild America
Bad Religion
Violent Femmes
Suicidal Tendencies
Pearl Jam
Nirvana
Stone Temple Pilots
Red Hot Chili Peppers
Samiam
Pennywise
Fugazi
The Mighty Mighty Bosstones
Rage Against the Machine
Green Day
Weezer
Rollins Band
3 Doors Down
Beastie Boys
Run DMC
Tribe Called Quest
G. Love & Special Sauce
Biohazard
Primus
Kings X
Lynyrd Skynyrd
Chevelle
Body Count
Ice T
Winger
Dangerous Toys
Firehose
Firehouse
Trixter
Poison
Motley Crue
Bon Jovi
Ice Cube
Van Halen
Vixen
Tesla
Great White
Guns N Roses
Extreme
Doug E Fresh
Mastodon
Danzig
KMFDM
Fine Young Cannibals
Pixies
Mudhoney
Whitesnake
Warrant
Skid Row
Twisted Sister
Social Distortion
Ugly Kid Joe
Devildriver
Janes Addiction
Faith No More
Staind
Slaughter
Rush
Dio
Ratt
Pantera
Monster Magnet
Matchbox 20
Helmet
Dream Theater
Dokken
Everlast
House of Pain
Bela Fleck & The Flecktones
Sepultura
Soul Fly
Opeth
Night Ranger
Scorpions
Hootie & The Blowfish
Ben Folds
Eric Johnson
Ben E King
B B King
Eric Clapton
Joe Satriani
Steve Vai
Blink 182
Gwar
Lordi
Perfect Circle
Limp Bizkit
Tool
Soundgarden
Bauhaus
Souxsie & The Banshees
Alice in Chains
Foo Fighters
..........So many more over the years.