Here is a list of member denominations from their website:
African Methodist Episcopal Church
The African Methodist Episcopal Zion Church
Alliance of Baptists
American Baptist Churches in the USA
Apostolic Catholic Church
Diocese of the Armenian Church of America
Christian Church (Disciples of Christ)
Christian Methodist Episcopal Church
Church of the Brethren
Community of Christ
The Coptic Orthodox Church in North America
The Episcopal Church
Evangelical Lutheran Church in America
Friends United Meeting
Greek Orthodox Archdiocese of America
Hungarian Reformed Church in America
International Council of Community Churches
Korean Presbyterian Church in America
Malankara Orthodox Syrian Church
Mar Thoma Church
Moravian Church in America Northern Province
and Southern Province
National Baptist Convention of America
National Baptist Convention, U.S.A., Inc.
National Missionary Baptist Convention of America
Orthodox Church in America
Patriarchal Parishes of the Russian Orthodox Church in the USA
Philadelphia Yearly Meeting of the Religious Society of Friends
Polish National Catholic Church of America
Presbyterian Church (U.S.A.)
Progressive National Baptist Convention, Inc.
Reformed Church in America
Serbian Orthodox Church in the U.S.A. and Canada
Glad the United Methodists, for all their flaws, are not on it. I’d hate to have embarass my wife by calling it a big steaming pile, gathering my family and walking out.
It looks like you left off the last few from the list:
The Swedenborgian Church
Syrian Orthodox Church of Antioch
Ukrainian Orthodox Church of America
United Church of Christ
The United Methodist Church