They were apprehended during a raid on their hideout in Ogbomoso, Oyo State.
The operatives swept on the location after intelligence gathered on their activities.
Three of the suspects say they are members of the National Youth Service Corps (NYSC).
Nineteen are undergraduates of universities across the country, while the remaining 10 laid claims to sundry vocations.
They were Oyebamiji Francis, Aremo Jeremiah, Ogbonnaya Prosper John, Anuoluwapo Matthew, Oladele Victor, Mumuni Waliyullah, Olawoyin Abiodun, Okuwatoyin Henry, Arisekola Shina, Babarinde Solomon, Samson Gideon.
Others included: Joshua Ola Adebayo, Ajayi Joseph Ajibola, Garba Mojeed, Olatunbosun Tobiloba, Azeez Ridwan, Ajala Timilehin, Adebolapo Bakare, Alaba Gideon, Ogunkeye Olumide, Ogunleke Tolu, Olapade Emmanuel.
Also in custody were Adegoke Aanu Abiodun, Job Ayantoye, Oyebode Pelumi, Babayanju Toluwani, Oladele Ayobami, Omonaiye Abubakar, Sattong Baking, Abisoye Kehinde, Iwajomo Nathan and Aniyikaye Tope.
EFCC disclosed that 12 exotic cars, several phones, laptops and some incriminating documents were recovered from them.
The agency said all were subjected to thorough screening by medical officials of the EFCC in line with the COVID-19 prevention protocols.
The suspects would be charged to court after conclusion of investigations.