The Church formed from the merger of six Filipino evangelical groups of Presbyterian and Methodist backgrounds, who met in Manila through the invitation of Don Toribio Teodoro, a layman and industrialist who was a member of the Iglesia Evangélica de los Cristianos Filipinos (Evangelical Church of the Filipino Christians).

A church union was declared on 3 January 1932 at the former Manila Grand Opera House.

[1] In May 2012, Unida Church celebrated its 80th founding anniversary at the Cuneta Astrodome.

The denomination has since grown to 25,000 members in some 82 congregations and 60 mission churches, with churches concentrated in Metro Manila, Southern Tagalog, Bulacan, and the Bicolandia; several congregations in the Northern Philippines, Visayas and Mindanao; and overseas congregations in Canada, Qatar, and Japan.

[2] The Temple and Main Office, known as the Unida Christian Center, is located in Silang, Cavite, Philippines.