A bit hard to search as the terms vary so much as soon as we're not talking about the standard hermetic sigils. Marks, Signatures, Reflections, etc. but below is a list I could quickly find.
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Pre-hermetic traditions: Hooks - Mechanica of Heron - Ailuros is a lithe silver cat with sparkling emerald eyes... The sound of a silver wind chime (Celmis' sigil) can be heard when she uses her powers. (Celmi is a Mechanica Mage of the 3rd century and Ailuros is a mechanica cat created by him)
HoH p.75 SIGHT OF THE SIGIL - In the case of Hermetic effects, this spell gives the Technique and Form, the rough details of the effect and the casting sigil of wizard responsible. It can also detect if a Hermetic effect was generated by a spell or invested device. If the effect was non-Hermetic, similar information is provided, but a Quaesitor without knowledge of that sort of magic may not be able to interpret it.
Hedge Magic Revised - Mark - Each folk witch has a mark that reveals an effect as being cast by her. This is similar to a magus' sigil.
Rival Magic - Wizard's Sigils - The Gift expresses itself in a very individual fashion, and one manifestation of this is as a casting sigil. All characters with The Gift and a supernatural Ability, Art, or power produce a sigil when they use their magic, which is akin to a signature. Like the sigils of Hermetic magi (ArM5, page 86), these sigils might affect the environment in which the spell was cast, the wizard herself, or the target of the spell; but they always allow the identification of a cast spell to a specific individual, although it may require magical investigation to reveal a sigil once a spell has been cast.
Rival Magic - Ma'at Zoi Guidelines
Ma'at Zoi incantations measure the spirits, and can be used to gain useful information about ghosts and other incorporeal spirits. Seeing a spirit is relatively easy, although it becomes harder if the sorceress does not know the spirit. To see an unknown spirit, meaning one that is not an Amazon, the sorceress must cast the incantation at Range Unseen Stranger. If such a spirit exists within the scope of the sorceress' vision, it will appear to her.
The Gift can be detected with Ma'at Zoi incantations, as can other supernatural powers that a human target may possess. Ma'at Zoi spells can also detect the personal traces inherent in each sorceress' spells. Magi call these unique identifiers "sigils," while sorceresses refer to them as "reflections of the spirit."
The Cradle & the Crescent - Sahirs "Sigil's" are a signature mark of the Jinn they bind.
The Mysteries revised - "Some spirits may manifest minor effects (similar to a magus's sigil) in the bound spell"