Construction Materials Testing · Geotechnical Engineering · Drilling (615) 637-5986 info@ledgerockcmt.com

About Ledgerock

An engineering, testing and drilling firm built on one idea: the people who drill your site should be talking to the people who design your foundation.

Who we are

One firm, from the subsurface up.

Ledgerock CMT & Geotechnical, LLC serves owners, developers, contractors, architects and public agencies with the three services every building and infrastructure project depends on.

Subsurface exploration, geotechnical engineering and construction materials testing are usually split across two or three firms. We bring them under one roof. Our drill crews, laboratory, field technicians and engineers share the same data, the same schedule and the same standard of work.

That shows up on your project. Borings get logged by people who know what the engineer needs. Lab results reach the report the same week. And when field conditions don't match the plans, the engineer who wrote the recommendations is a phone call away — not a change order away.

At a glance

Disciplines
Geotechnical engineering, CMT, drilling, special inspections, laboratory testing
Equipment
Truck-, track- and ATV-mounted drill rigs
Laboratory
In-house soils, concrete and aggregate testing
Clients
Owners, developers, contractors, design teams and public agencies
Headquarters
Nashville, TN
What we stand on

Our core values

Safety first

Every crew starts every day with a job hazard analysis. Utility locates, traffic control and PPE are non-negotiable on every site.

Accuracy you can defend

Calibrated equipment, documented procedures and engineer review mean our numbers hold up — in the field, in the lab and with the building official.

Responsive by default

Same-day scheduling, real-time field results and an engineer who returns your call. We work at the pace of construction.

Straight talk

Clear reports, practical recommendations and honest answers — even when the soil isn't what anyone hoped.

Programs

Quality and safety, built into every job.

Quality program

  • Testing performed to current ASTM and AASHTO standards
  • Equipment calibrated and verified on a documented schedule
  • Technician certifications tracked and kept current
  • Engineering reports reviewed by a licensed Professional Engineer
  • Chain-of-custody tracking from sample to report

Safety program

  • Site-specific safety plans and daily job hazard analyses
  • OSHA-trained field technicians and drill crews
  • 811 utility locates before every boring
  • Daily rig inspections and maintenance logs
  • Traffic control and work-zone protection
Who we work with

A partner for the whole project team.

Based in Nashville and serving Middle Tennessee and Southern Kentucky — including Davidson, Williamson, Rutherford, Wilson and Sumner counties.

  • Owners & developers
  • General contractors
  • Site & earthwork contractors
  • Architects
  • Structural & civil engineers
  • Municipalities
  • Departments of transportation
  • School & healthcare systems
  • Industrial facilities

Breaking ground soon?

Tell us about your site and schedule. We'll respond within one business day with a scope and proposal.