Looking to select an inground pool builder. This is a big decision for most home owners who have never built a pool before. Asking questions and doing the appropriate amount of research is in order. Here are a few points you might consider asking and / or checking out:
Ask your potential builder if they are incorporated and registered in good standing with the Secretary of State's Office in Arkansas. If so, then what year were they incorporated as a corporation, this will provide you how long they have been in business under that current company name. This is public information and easy to check out for yourself.
Ask to meet them at their place of business. Check out their organization and their ability to support your project long after the construction is complete. If they do not have a place of business, beware!
Belonging to the BBB (Better Business Bureau) means nothing. All the BBB wants is a company's money in the form of an annual fee. Most any company today can pay the fee and belong to this organization. Same applies to the local Chamber of Commerce. Angie's List is the same kind of venue.
Ask to see a copy of their Liability Insurance. If they can not provide you this, chances are, they don't have it. Otherwise, your homeowners insurance will end up covering any liability should one occur on your property if something goes wrong. This is the last thing you need.

You can always ask for references from previous customers, however, this is usually a waste of time. Testimonials generally are ALWAYS from customers who had a decent or nice experience. Sometimes its just good business to just go with your "gut" feel about the person and the company they represent.
Perhaps this will give you some insight as what to look for and ask your potential pool company / builder and the manner in which they respond to your requests.