Providing full service geotechnical drilling and testing services for over 70 years.


Pitcher Drilling Company (Pitcher) began operations in 1933 offering water well drilling services.  Since our inception, we have evolved into a full service drilling contractor and provide a wide range of geotechnical drilling and testing solutions. Our geotechnical drilling expertise encompasses site investigation and inhole testing.  With extensive experience completing investigations at hard to access sites, we have the knowledge and equipment to work on any site where information is needed, on-land and overwater.  Pitcher Drilling Company offers the following geotechnical drilling and testing services.


  • Mud Rotary Drilling

  • Hollow Stem Auger Drilling

  • Overwater Drilling and Testing

  • Split Spoon Sampling
        - Using 1.5, 2, 2.5 diameter sample tubes

  • Shelby Tube Sampling

  • Osterberg Sampling

  • Piston Sampling

  • Soil Coring
    -  Pitcher Barrel
    -  101 mm Geobarrel System
    -  94 mm System

  • Wireline Rock Coring (NQ/HQ/PQ)

  • Piezometer Installation

  • Inclinometer Installation

  • Extensiometer Installation

    More details on drilling services


  • Cone Penetration Testing (CPT)

  • Seismic Cone Penetration Testing

  • Vane Shear Testing (VST)

  • Pressuremeter Testing (PMT)

  • SPT Energy Calibration

More details on testing services



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Pitcher Drilling Co. (A wholly owned subsidiary of Gregg Drilling & Testing, Inc.)
218 Demeter Street East Palo Alto California  94303 Phone: (650) 328-8910 Fax: (650) 328-3621
Email: pitcher@pitcherdrilling.com