All companies and organizations involved in the design and construction of deep foundations are invited to become corporate members of DFI.  That includes design and consulting engineering firms, specialty and general contractor firms, private developers, universities and institutes, and companies that manufacture and supply the materials, equipment, tooling, software, etc. involved in deep foundation projects as well as companies providing services such as laboratory testing, legal services, insurance and financing.  All are welcome and encouraged to be part of the DFI community.