Logo designer

I manage a small family-run office supply company in Dublin. We are 100% homegorwn who provide all kinds of office products to companies & have been in business since 1983.Looking to refresh the co. image and to make it look more professional but not corporate as we provide a more personal customer service...want something simple maybe organic as we are homegrown. Logo is to be used on invoices/bus cards/website/vehicle ets.. Looking for 3 different choices at least and nothing too expensive.