This is a regular verb with a spelling change. It follows the conjugation pattern of the verb abrazar.
Spelling Change: ze ce - zé cé
PresentPresente
Marta organiza una fiesta para su hermana.
Marta is organizing a party for her sister.
PreteritePretérito indefinido
El sábado organicé mis papeles viejos.
On Saturday I organized my old papers.
FutureFuturo
La escuela organizará un torneo de fútbol.
The school will organize a soccer tournament.