PDCAThe Pile Driving Contractors Association (PDCA) is an organization of pile driving contractors that advocates the increased use of driven piles for deep foundations and earth retention systems.
http://www.piledrivers.org/
GRL Engineers Inc. is an associate member of PDCA.
Pile Dynamics Inc. is an associate member of PDCA.
  
DFIThe Deep Foundations Institute can best be described as being a technical association of firms and individuals in the deep foundations and related industry. DFI covers the gamut of deep foundation construction and earth retention systems.
http://www.dfi.org/
GRL Engineers Inc. is a corporate member of DFI.
Pile Dynamics Inc. is a corporate member of DFI.
  
ADSCADSC: The International Association of Foundation Drilling represents the drilled shaft (drilled pier, cast-in-place piles, drilled caisson) and anchored geo-support earth retention (shoring systems, tiebacks, soil nails, micropiles, mini-piles) industries.
http://www.adsc-iafd.com/
GRL Engineers Inc. is a corporate technical affiliate of ADSC.
Pile Dynamics Inc. is an associate member of ADSC.
  
Geo-InstituteThe Geo-Institute of the American Society of Civil Engineers is a specialty organization focused on the geo-industry. It has more than 10400 members and encompasses several committees among which the Deep Foundations Committee. It focuses on the career development of geo-professionals through specialty conferences, journals and practice-oriented publications and educational programs.
http://www.geoinstitute.org
GRL Engineers Inc. is an organizational member of the Geo-Institute.
  ASCE The American Society of Civil Engineers http://www.asce.org/

 Foundation QA Foundation QA Pty Ltd (FQA) is an Australian company that provides examination and certification of PDA testers, as well as training and workshops in foundation engineering. A schedule of workshop and test dates, locations and fees can be obtained by contacting Foundation QA http://www.foundationqa.com

 
IACETThe International Association for Continuing Education and Training has as its mission "to promote and enhance quality in continuing education and training through research, education and the development and continuous improvement of IACET criteria, principles, and standards."
http://www.iacet.org/
GRL Engineers, Inc. and Pile Dynamics, Inc. are IACET Authorized Providers


  ACI the American Concrete Institute is advancing concrete knowledge by conducting seminars, managing certification programs, and publishing technical documents. The American Concrete Institute currently has 98 chapters and about 15,000 members spanning 108 countries. http://www.aci-int.org

ASTM American Society for Testing and Materials promotes public health and safety, and the overall quality of life; contributes to the reliability of materials, products, systems and services; and facilitates international, regional, and national commerce. http://www.astm.org/

  Quality Assurance Company -->ASFE ASFE's mission is to help members profit from professionalism, by enhancing their management skills so they can respond effectively to a changing business climate, without compromising the quality of technical service. http://www.asfe.org/

ARTBA ARTBA is a federation whose primary goal is to aggressively grow and protect transportation infrastructure investment to meet the public and business demand for safe and efficient travel.
http://www.artba.org
The Ohio Office of GRL Engineers is a member of ARTBA