About MTGL, Inc.

MTGL, Inc. was formed in 1993 by a group of seasoned professionals. We provide Geotechnical Investigations and Construction Quality Control/Assurance. As an independent third party, MTGL ensures that the current standards and codes are followed. MTGL furnishes field, site and plant inspections for all construction materials. We conduct physical laboratory testing for all of the materials that are placed during these inspections and investigations.

MTGL, Inc. is a California corporation and is a registered woman-owned, minority owned, and community business enterprise (WBE/MBE/CBE). MTGL provides geotechnical engineering, soils/materials inspections, and laboratory testing services. We have nearly 85 employees and three offices throughout Southern California, including:

Our laboratories currently operate in compliance with ASTM standards. We are certified by the DSA, CBC, CCRL, AASHTO, County and City of Los Angeles, and Caltrans.

MTGL currently provides:

Firm Profile

MTGL, Inc. Anaheim Office
  • Number of Employees
  • Established in 1993
  • Type of Company
       California Corporation
  • Classification
  • Find Us Online


When selection of a laboratory depends on service, MTGL is on the cutting edge. Our emphasis has been to provide a pro-active, teamwork approach to our service. The laboratory, and staff are dedicated to timely communication which assists the project team to accomplish an on time, quality project.

Our project management staff has over 90 years of combined experience, and is dedicated to meeting the needs of the project for staffing, and specific billing needs. The project manager assures that the quality control needs have been met, while monitoring and identifying re-testing, or requests that impact our budget to meet the critical path for project completion.

One-Stop Shop

MTGL, Inc. provides all of your materials testing, geotechnical engineering, and laboratory testing all under one roof. Our on-site laboratories are fully certified.