Finding foundation companies is easy, finding the one you need that is skilled may be very difficult. Nearly every licensed contractor for foundations that we have reviewed couldn't pass simple guidelines like following the IRS 2015 suggestions. Not to mention improper metal work we found that most Louisiana finishers did not learn the trade from a master but picked up on things working with others with similar training.
Don't let shoddy work and workers get paid trades earnings. If they are still learning and they use your driveway or your homes foundation to train on you should be compensated. Don't pay when the work is not correct and I'll point out some basic issues that you should not have to pay for.