We track 2 dive operators in Lagos. 1 teach certification courses (1 SSI). Listings are ordered by Fin Rank: a published score for how complete and verified each listing is.

Águas Vivas Apneia is a freediving school located in Vila Nova de Milfontes, Portugal. They offer freediving courses and experiences in the Alentejo region. The school focuses on teaching safe freediving techniques and promoting a connection with the underwater environment.
Fin lists 2 dive operators in Lagos. 1 of them run certification courses.
SSI is the most common agency (1 centre).
Operators are sorted by Fin Rank, a 100-point profile strength score: contact details, what they offer, the dive sites they run, their Google reputation, whether the owner has claimed the listing, and whether their own website links to Fin. 0 listings here are owner-verified. The formula is published in full on the Fin Rank page.