Prato:

oasi lavoro
Oasi Lavoro Romagna
OBI Group Holding
obi italia
OEMpv S.r.l.
OGRC Ltd.
omnia retail
omniadoc
OneForma
ONEtoONE Corporate Finance
oneway promotion
Only Job
only one engineering
ONLY ONE ENGINEERING SRL
open ingegneria società benefit
OPEN Ingegneria Società Benefit s.r.l.
openjobmetis
Openjobmetis SpA
opera prima
OPLIUM
Optimis Tech
OralPro
ORBYTA
Orderman
orienta
orologio network
OSL
Osmium
OV Energy S.p.A.
overkill
OVERTECH Consulting
ovs
oxfam italia