Doing Business with HDCA
Prospective Partners
HDCA is continuously seeking new business opportunities through strategic teaming arrangements. Whether you are an individual practitioner, specialty service firm, local or national firm, HDCA welcomes the opportunity to meet and discuss teaming opportunities. Please contact H. Davis Cole at (504) 836-2020 if you would like to discuss ways that we might work together.
Information for Clients and Subconsultants
IRS Form W-9
HDCA Insurance Certificates
HDCA Standard Subconsultant Agreement
Professional Ethics
HDCA fully endorses and adheres to the "Code of Ethics for Engineers" developed by the National Society of Professional Engineers (NSPE). A copy of the "NSPE Code of Ethics for Engineers" may be viewed here.




