Executioner formed in Brandon, Florida in 1984 they later released their "Metal Up Your Ass" demo in 1985. They would later change their name to Xecutioner and then later to Obituary. Executioner's lineup was John Tardy (Vocals), Jerry Tidwell (Guitar), Trevor Peres (Guitar), Jerome Grabel (Bass) and Donald Tardy (Drums).
www.obituary.cc

Executioner
 "Metal Up Your Ass"
1985

Executioner "Metal Up Your Ass" (7" Vinyl Demo)
Recorded at Morrisound Studios Tampa, Florida
Released: 1985
Self Released

Nasty Savage self titled release lineup pictured above from left to right Curtis Beeson (Drums), "Nasty" Ronnie Galletti (Lead Vocals), Ben Meyer (Guitars), Fred Dregischan (Bass) and David Austin (Guitars).
www.nastysavage.com

Nasty Savage
"Nasty Savage"
1985

Nasty Savage "Nasty Savage"
Recorded at Morrisound Studios Tampa, Florida
Released: August 30, 1985
Label: Metal Blade Records

Savatage hailing from the Tampa Bay area released their second full length album, "Power of the Night", in 1985 with the same lineup from Sirens, pictured above from left to right: Steve Wacholz aka "Doctor Hardware Killdrums" (Drums, Percussion),Jon Oliva (Lead Vocals), Criss Oliva (Guitars, Backing Vocals) and Kieth Kollins (Bass, Backing Vocals).
www.savatage.com

Savatage
"Power of the Night"
1985

Savatage "Power of the Night"
Recorded at Bearsville Studios Bearsville, New York
Released: May 20, 1985
Label: Atlantic Records

Siren released "Iron Coffins" in Jan of 1985 with the lineup of  Ed Aborn (Drums), Doug Lee (Vocals), Ed Hauser (Bass, Backing Vocals) and Rob Phillips (Guitar).
Siren - Facebook

Siren
"Iron Coffins"
1985

Siren "Iron Coffins" (Demo)
Recorded at GDM Studios, Tampa, Florida
Released: Feb 1985
Self Released