The site offered streaming video on a pay-per-view basis and operated out of two different locations, Taguig and the province of Rizal, authorities reported.
The talent found on the premises at the time of the raid were arrested and then released several hours later, the NBI said.
The owners of the operation could face criminal charges, although NBI has not yet revealed their identities. The website is believed to be operated from another country.
NBI officials also seized personal computers, which are currently under examination.
The website charged users $2.99 per minute to watch the Filipina women perform sex acts.
NBI, which has conducted similar type raids throughout the country in recent months, claims to have gotten the tip from a foreign source. NBI conducted a search and seizure of another alleged porn company just last week.