Ruth Birmingham is the pseudonym under which the award-winning Sunny Childs PI series is written.
Dorothy Cannell writes mysteries featuring Ellie Haskell, interior decorator and Ben Haskell, writer and chef, and Hyacinth and Primrose Tramwell, a pair of dotty sisters and owners of the Flowers Detection Agency.
Sue Grafton is one of the best known writers of the female private eye novel.
Martha Lawrence's female PI uses her psychic skills to aid her investigations.
The investigations of Laura Lippman's Tess Monaghan character have earned her awards and critical acclaim.
Marcia Muller's Sharon McCone mysteries have won her awards and critical acclaim, leading to other popular mysteries, including collaberation with her husband, author Bill Pronzini.
Sara Paretsky's mystery series featuring VI Warshawski is a classic in the private investigator subgenre.