Selection of logo entirely depends upon the services and product offered by the organizations. Therefore it has become essential to analyze business properly before selecting a logo for your company
I usually use fiverr.com for Startups as you can get a logo really quickly for only $5. You can always improve from there, but it is a really good, cheap way to get started. I see far too many people getting so caught up on the logo, that is as far as they get in business.
Try it, go to fiver and spend $5 on a logo, make sure you review the persons feedback and make sure they are still active on there, as there are a few rubbish contractors there, but hey it's only five dollars.
---Owner of Core List USA - http://core-list.com Provider of US Business Database, Business and Mailing Lists