There are 1000's of logo design samples available online that can be used to built a logo for your business. When getting a logo design you can refer to these logos as something close to what you want built.
If you go through a logo design gallery you will find several logo designs that are organized industry wise. These logos can help you figure out what type of a logo you want. Apart from static logos, logo design companies also build animated logos in flash. These are best on websites and help engage your visitors better. You can use these on presentations and portfolio movies alike. Browse through online companies and go through logo design packages to see the various options on offer and choose what meets your requirement.
Since a logo design is a trademark for your company, it is best to get it custom made just so no one else can use a similar logo. A separate identity with a strong message is all you need as a start up company.
Most portfolios displays various logo design samples such as real estate logos, financial logos, medical logos, fashion logos and sports logos and more. The logo designers will take your creative brief and study your business traits. They will work on your design project while keeping you updated with the developments so you can get revisions as you like. Most companies have online software called a cpanel where you can see the latest going on with your order and give your input and feedback.