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Jab Records - 3 labels
Jackpot Records - subsidiary of Challenge Records
Jad Records
Jador Records - subsidiary of Goldband Records
Jaguar Records

Jaguar Records - 100 series
Jaguar Records - 3000 series - 1950s label

Jam Records
Jamie Records
Janus Records

Eastbound Records - 1970s label - distributed by Janus Records

Jaro Records
Jasman Records - very small label
Jax Records
Jay Boy Records - UK
Jay-Dee Records
JC Records - probably 3 labels
Jed Records
Jerden Records
Jeremiah Records - mostly Hoyt Axton
Jetstar Records
Jetstream Records
Jewel Records

Paula Records - division of Jewel Records
Ronn Records - division of Jewel Records

Jin Records
JMI Records
J.O.B. Records
Joda Records - very small mid-1960s label
Johnson Records
Jolar Records - small Boston, MA label
Jordan Records - small New York City label
Josie Records
Jowar Records - small Long Island, NY label
Jox Records
Joy Records
Joyce Records
Juanita Records
Jubilee Records
Judd Records
Juggernaut Records - very small New York City label
Jugoton Records - Yugoslavia - rather incomplete
Juke Box Records
Julia Records
JVB Records