CiviCRM
CiviCRM is an open source customer relationship management software platform that is ideal for any companies that are an incredibly tight budget. Owing to its open source nature, CiviCRM is very customizable, which makes it the perfect choice for companies that already have an internal engineering team or are otherwise technologically savvy. Since the software platform is open sourced, it can be easily acquired by a company for virtually no up front cost, and then it can be modded to suit a company's specific needs as they develop. While CiviCRM requires more work than some other customer relationship management platforms, it more than makes up for this with its affordability and ease of use, which can be further refined as needed. Companies that wish to experiment with their own data management tools should seriously consider looking into CiviCRM for more information.