The best way you can go in order to find out how to evaluate your business plan is by using Google. Yes, just Google it and you will find the service you need and the way you can evaluate your plan yourself.

By the way, this is a list of questions you might want to ask your self before presenting your business plan to a venture capitalist.

1.Is the business plan readable?

2.Is the business plan well thought out?

3.What is the legal structure of the business?

4.What are the strengths of this business plan?

5.What are the weaknesses?

6.Has your client accurately estimated the difficulties in growing a business?

7.Are there any vague or unsubstantiated statements in the business plan? (i.e. sales will double in two years)

8.Is your client being realistic?

9.Is there data to support your client’s statements?

10.Has your client demonstrated a how they are going to measure their objectives?

Find the rest of these questions here.

Lots of cities have services for small businesses at low or no cost. In New York City for example, there is the Baruch Small Business Development Center, an offshoot of the Zicklin School of Business, the largest accredited business school in the US, that helps people develop their ideas.

Your local chamber of commerce can help you as well.

You can go to your local SCORE office and have a Mentor (who's either retired or still working in the Industry you're interested) review your business plan. They will give you feedback in any areas where you might need to improve or expand upon regarding you business plan.

It would be a good idea to place in here a link to the summary / gist and overall forecast of your plan, that way you'd get the best advice right here