Q: What do the following entities have in common?

King/Queen of England
Chamberlain of London
Catholic Church (and every Bishop, Diocese, Dean, Parson, Vicar, Prebendary, Abbot, and Prior)
Anglican Church (and every Bishop)
Episcopal Church (and every Bishop)
Church of Jesus Christ of Latter Day Saints (Mormon)
Catholic Charities Maine (the state's largest social service agency)
Worldwide Church of God
Lieutenant Governor of British Columbia
Zen Center
Reiki Council (Chicago)
Servants of the Holy Family (Recipient of grant from Fidelity Charitable Gift Fund)

A: Each of them is a "corporation sole."