Adi Shakti has never been mentioned with the name "Adi Shakti". But indirectly, they also consider her to be supreme being. Scriptures like Devi Bhagwata Purana, four Vedas consider Kali as Dark energy which dissolute complete universe along with time. Lalita gives birth to the universe in the form of cosmic egg which manifested as the universe. Ultimately, Adi shakti herself is the Zero Energy which exist even after destruction of universe and before its creation
Saptha Kannigal in a group of seven called Saptamatrika(s) (Seven Mothers).
Brahmani emerged from Brahma, Vaishnavi from Vishnu, Maheshvari from Shiva, Indrani from Indra, Kaumari from Skanda, Varahi from Varaha and Chamunda from Devi.
