About Meridian

San Francisco Based, Professional Land Surveyors Serving California Residential & Commercial Firms With Engineering Services.

COMPANY OVERVIEW: Meridian Surveying Engineering, Inc., is a San Francisco based California Corporation that provides Professional Surveying, Planning and related design engineering support services to Municipalities, Contractors, Developers, A/E firms, Utilities, and Landowners. Founded in 1989, Meridian has strategically located offices on Van Ness Avenue in San Francisco, Central San Rafael and Central Antioch to strategically serve the Bay Area, Sacramento Delta and Northern California. Key project managers have extensive experience in accomplishing a variety of Land Surveying, Hydrographic, GIS, GPS, HD 3D Scanning & Civil Engineering support tasks.

Meridian Surveying Engineering, Inc Acquired RGA, Inc in 2012 - RGA Antioch location, Historic Records, file and services are available along with the expanded services that Meridian offers such as HD 3D scanning and Ground Penetrating Radar.

Meridian has large and small scale project management experience with clients such as URS, Apple, Parsons, Kimberly Horn, Parsons Brinkerhoff, Swinerton, Kennedy Jenks, TetraTech, DOW, DuPont, Best Buy, State Farm, CalTrans, Skidmore, Owings & Merrill, Obyan Beach Resort (on the island of Saipan) and Montezuma Wetlands. Meridian has extensive experience working for municipalities and Government agencies including The City & County of San Francisco, SMUD, PG&E, Brisbane, City of San Rafael, City of Larkspur, City of Redwood City, Pacifica, Mill Valley, Lodi, Sunnyvale, Santa Cruz, Petaluma, Tiburon and Berkeley to name a few.

The primary benefit clients receive when they hire Meridian is quality work. Meridian has incorporated the latest automation technologies (AutoCAD, robotic total stations, RTK GPS, Hydrographic Surveying, HD 3d Scanning, data collectors, etc.) thus we deliver the highest levels of accuracy, speed, and flexibility possible. Because of our dedication to continuous improvement, we ask questions, we communicate our approach, and, when it helps us reach our clients' goals, we create and/or adopt new procedures.

Principal Qualifications: Stanley T. Gray, California Licensed Land Surveyor (PLS)

Stan Gray, PLS, BS (Surveying and Photogrammetry). In addition to his 30 plus years’ experience he is a specialist in engineering automation technologies including GIS/GPS and CAD. Mr. Gray provides mediation and expert witness services in property litigation and accident investigations. Mr. Gray has developed and implemented field-to-finish survey programs and procedures. He has accomplished surveys of all types (Air, Land and Sea) both as a field surveyor and as a project manager in urban and suburban environments in the US and abroad.


  • Hydrographic & Environmental Surveys
  • Terrestrial HD 3D Scanning & Exhibits
  • ALTA/ACSM Surveys
  • Expert Witness & Mediation Support
  • Easements, View Corridor & Title Issues
  • Boundary Surveys
  • Record of Survey
  • Damage, Settlement & Deformation Monitoring
  • School & Park Surveys
  • Horizontal and Vertical Control
  • Residential Site Surveys & Plot Plans
  • GPS/GIS/CADD Services
  • Quality Assurance Support
  • Construction Management Support
  • Cell Site FCC Certifications
  • Subdivision/Lot Line Adjustment
  • Construction Staking
  • As-Built Surveys
  • Ground Penetrating Radar