Horizon Initiative

The Horizon Initiative, also known as the HI, is an organization in the same universe as the SCP Foundation. It's a religious organization formed by the main three Abrahamic religions (Judaism, Christianity and Islam), who under in the name of God and his creation, either contain or destroy anomalous objects.

Overivew
The Initiative was formed in the 1960's, presumably as a spiritual counterpart to the more "secular" SCP Foundation and Global Occult Coalition. Still, alongside the SCP Foundation and the Global Occult Coalition, they serve as the main defenssive line for humanity against the anomalous.

The group is led by a tribunal composed of leaders from all three faiths, though this tribunal does not always have full control of the organization, since there is a large amount of internal strife (likely from the more radicals of each faith).

In groups main combat force is Project Malleus, that is usually deployed in anti-cult operations and in anomaly retrieval operations. Anomalies are either contained or destroyed by the group, depending how the fit into the overall dogma of the three faiths theology.

The group has a mixed relrationship with the the Foundation and GOC, as some sects of the HI view them as "godless" and "immora" groups, while others are willing to ally themselves with the Foundation.

The group is also enemies with Church of the Broken God and Sarkicism, as well as their two deities, Mekhane and Yaldabaoth, who they view as "unholy masters".

Trivia

 * The HI, the Foundation, GOC and some sects of the Church of the Broken God have formed a secret alliance known as the "Triumvirate", in order to combat Sarkicism.
 * It's unknown if they know of SCP-001.