An official plebiscite was held in Western Bicutan on December 12, 2008, with an overwhelming majority in favor for the creation of the new barangay.

[7] Barangay Pinagsama is home to the McKinley Hill development, as well as foreign embassies and educational institutions.

The current seal, adopted in 2017, encapsulates key elements symbolizing the protection provided by the barangay government, depicted through a gold shield against a blue backdrop representing leadership and peace.

On the lower left, the highway icon recognizes the significance of Carlos P. Garcia Avenue in the barangay's progress, while trees on the background represent the environment's importance.

The seal also notes the establishment year, 2009, and the "Barangay Pinagsama City of Taguig" in royal blue font color signifies peace and power.