Hymn of One recruitment centers

The Hymn of One uses a variety of recruitment centers to help entice people to join their religion. Based on Intel the original the Resistance had, there were 12 such centers, with plans to build 10 more in the near future.

The Seminar Location
After Bree left with the Hymn of One in Zavalla, Texas, she was brainwashed and made to participate in a series of recruitment videos for the HoO Seminar. Daniel, Jonas, and Sarah tracked the location down and rescued her.

The White Room
After Daniel was kidnapped by OpAphid, he posted a video from a myserious white room, urging Bree to complete the Ceremony. Since that time, Bree joined up with the Hymn of One and began posting recruitment videos in a similar white room somewhere within the Hymn of One facilities.

The Hymn of One Los Angeles Recruitment Center
Following a tip from a drunken Chris, Jonas, Daniel, Sarah, and Mallory went to the Hymn of One Los Angeles Recruitment Center, believing they would find Emma preparing for the Ceremony. Instead, they found a press conference announcing a new partnership between the Hymn of One, the Wyman Foundation, and Verdus Pharmaceuticals.

The Hymn of One London Centre
In Charlie's video Hymn of One, she looks up the London Hymn of One Recruitment Centre in her search for Kate. When she arrives, she meets Steve who wants her to leave him alone. Because of this, she can't get past the front door. The Hymn of One London Centre is located at 380 Old Street, as revealed in Hunting The Elder.

The actual location of this building is at the Shoreditch Town Hall.