They was a list of familys there powers and current status in a data book.
Spoiler for Demon hunting familys.:
1. Tsuchimikado clan:descendant of Abe-no-Seimei and are Onmyouji currently isolate themselfs.
2.Kamisakura clan:Shinto magic,sealed there own power then disappeared
3.Kagamimori clan:specialist in shinto seal magic, still active, powers female only.
4.Kogetsu clan:Assasination, family spilt in two status unknown.
5.Houjou clan:Lightning magic, family destoryed by there own powers
6.Amakawa clan:Object augmentation,distrusted by the other familys because of there association with Ayakashi,powers male only, Yuto's household.
7. Karasu clan:Sword-bearing exorcists. Destroyed in the Edo period by Kyuubi.
8.Jibashiri clan:Power of the earth,body augmentation, family destoryed during second world war,hunters that destoryed Shizuku's clan.
9.Homura clan.Fire magic, Clan destoryed second world war.
10. Hiiragi clan.Wind powers,lost there powers sealing hells's gate, currently powerless.
11. Yakouin family:future prediction data processing, status active.
12. Jinguji family:Western magic and powers similar to Ayakashi,powers female only, status active.
The only clans still active are bolded the rest are either powerless,destoryed or missing.