Jane Ira Bloom was on Columbia for a hot minute there in the late 80s. She also recorded for Enja, JMT / Winter & Winter, and Arabesque. I believe Outline is her own label.
Myra Melford: Hat, Arabesque, Palmetto, Firehouse12, others.
In fact, Firehouse12 has featured quite a few women musicians: Melford, Mary Halvorsen, Ingrid Laubrock, Nicole Mitchell.
Annette Peacock, Marilyn Crispell, and Sylvie Courvoisier have all recorded leader dates for ECM.