Tom Zannino, engineer

Thomas L. Zannino, P.E.

Mr. Zannino is a registered Professional Engineer with a Masters Degree in Geotechnical Engineering that began working as a Geotechnical Engineer in 1974. His specialties include: all facets of Geotechnical Engineering, Environmental Studies, deep and shallow foundations, surface and subsurface landfills, retaining walls, shoring plans and site development. Mr. Zannino can be contacted at

  • Education: WV University
  • BSCE 1974
    MSCE 1979
  • Registration: VA, WV, KY, OH, IN


Mark McLain, Professional Engineer

Mark E. McLain, P.E.

Mr. McLain is a registered Professional Engineer that has been working in the Geotechnical Engineering field since 1993. Mr. McLain specializes in: Environmental Site Assessments, groundwater monitoring, Geotechnical Engineering, and retaining walls. Mr. McLain can be contacted at

  • Education: Virginia Tech
  • BSCE 1992
    MSCE 1999 (Environmental)
  • Registration: VA


David B. Sanders

Mr. Sanders is the Construction Services Supervisor who has been with ZEI since 2000. Mr. Sanders is highly certified in all areas of construction materials testing and has experience on major commercial and industrial development projects. Mr. Sanders can be contacted at


Gregory S. Cox

Mr. Cox has over 16 years of experience in the field of Construction Materials Testing as a Senior Technician. Mr. Cox has experience in concrete testing and soil testing, proofrolling, masonry, fireproofing, and structural steel inspections, concrete coring and VDOT Testing, including soils, concrete and asphalt. He is certified for confined space inspection for caissons and other below grade confined spaces. Mr. Cox also currently serves as our Laboratory Manager for our Soils and Concrete Laboratories.


Joshua Spacek

Joshua Spacek works in our engineering department.  Joshua is a graduate of West Virginia University (WVU). Currently, he works primarily on residential and commercial subsurface investigations in the Metro Richmond and surrounding areas (#RVA). In addition, Joshua has hands-on experience in our commercial testing department.


Chris Jones

Professional engineer Chris Jones, PE, joined Zannino Engineering Inc. as the operations manager. Chris has an MSCE in geotechnical engineering and 10 years of experience with HDR and worked on large projects like the new Gov. Mario M. Cuomo Bridge, formerly known as the Tappan Zee Bridge and the new Hampton Roads Bridge Tunnel Expansion.

Chris is working in our construction materials testing division reviewing reports and Special Inspections as well as our geotechnical engineering department providing his expertise on complex subsurface investigations and retaining wall designs. Chris is a registered professional engineer (PE) in Virginia and North Carolina.