I hate to be the bearer of bad news, but generally, these are not the types of businesses that venture capital pursues. Due to the risk they are taking, VCs generally want to see a large market (meaning $1B potential) and a significant return on their money (10 times return).

However, you can look for an Angel investor. These are generally individuals who are not looking for as large market or a return.Here are some places to start. Best of success to you!

http://www.forbes.com/sites/tanyaprive/2013/12/16/20-most-active-angel-investors/
http://www.cbinsights.com/blog/top-angel-investors/