DFI Sustaining Members are Corporate Member firms who contribute to a special fund to supplement the dues income used to expand DFI's educational goals. The contributions are used as follows:
- To continue with and improve upon DFI's Continuing Education Seminars, allowing DFI to remain a leader in information transfer for the deep foundations industry.
- To support the Paul DeBruyn Memorial Scholarship Fund in honor of the late Paul DeBruyn, a DFI member who initiated the idea of a scholarship fund. The scholarship fund provides students with complimentary attendance to DFI conferences and seminars.