You are probably wondering about my overall comparison of these training providers. I assigned each of these categories a score of 1 to 3, where 1 is the worst and 3 is the best. For example, 1 means most expensive and 3 is the lowest cost. The best course materials got a 3, and old course materials or course materials I could not preview got a 1. Two providers clearly came out on top, and I will be focusing on PDH Engineer.com and PDH Online to renew my licenses. If you want to understand better why I assigned a particular score, click on the training provider’s name in the right sidebar to get a more complete description of that training provider.
| Training Provider | Cost | Ease of Use | Availability of Water Courses | Course Materials | Course Instructors | Course Ratings | Course Packages | Preview Course Materials | Total |
| http://www.pdhengineer.com/ | 1 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 22 |
| http://www.pdhonline.org/ | 1 | 1 | 3 | 3 | 3 | 1 | 3 | 3 | 18 |
| https://ez-pdh.com | 3 | 3 | 1 | 1 | 2 | 1 | 3 | 3 | 17 |
| http://www.cedengineering.com/ | 2 | 1 | 3 | 2 | 2 | 1 | 3 | 3 | 17 |
| http://onlineengineeringpdh.com/ | 3 | 2 | 2 | 1 | 1 | 3 | 3 | 1 | 16 |
| http://www.pdhlibrary.com/ | 2 | 1 | 2 | 3 | 2 | 1 | 1 | 3 | 15 |
| http://www.discountpdh.com/ | 2 | 1 | 2 | 1 | 2 | 1 | 1 | 3 | 13 |
| https://www.titance.com | 1 | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 11 |
PDH Compare 