The Assemblies of God are the largest classical Pentecostal
denomination, representing about 66.5 million members in 360,000
congregations and 140 national churches/organizations. They were
founded in 1914 in the U.S., and became an international fellowship
in 1988.
The Evangelical Covenant Church has about 300,000 members in 800
congregations, and was founded in 1885 by Swedish Lutheran
Immigrants to the U.S. They are an Evangelical denomination, almost
entirely within the United States and Canada.