About Us


TYR, Inc. was established in 2003 and since then, we have proudly served numerous school districts, community college districts, universities, hospitals, and public works throughout California. 
We occupy a unique position in our industry as our scope of services is strictly providing DSA and OSHPD inspections. Our staff of inspectors carry more than thirty (30) years of experience combined in school, hospital, and public works projects and have been involved with different types of project bid styles such as, General Contractors, Multiple Prime Contractors, and Design Build.
TYR, Inc. has formed strong relationships with our clients and with all DSA Field Engineers in California.  Our relationships have been built on a great foundation of trust and hard work.  We have met and continue to commit to the demands and requirements of our clients and DSA regulations to ensure successful, safe projects and satisfied clients. 


Our Team


Youssef G. Sobhi

Mr. Sobhi is well known in the inspection industry as an engineer, consultant, and inspector with over 20 years of experience.   His knowledge of inspections come from several major projects ranging in schools, hospitals, and public works throughout California. Some landmark projects he's inspected are Disney California Adventure, Disney Concert Hall, Dream Works and Metro Red Line.

He obtained his B.S. in Civil Engineering from Cairo University and is certified as a DSA Class 1 and OSHPD Class A Inspector.  He is a professional member and certified by ICC in reinforced concrete, structure steel and welding, structure masonry, pre-stressed concrete, spray applied fire proofing, building inspection, plan examiner and mechanical inspection, along with certifications in DSA masonry inspections and ACI Grade I.

Office Administrative Staff
Ann Abraham
Prisila Neri

Erica Flores
Manar Khair
Office: (562) 421-9800
Email: info@tyrior.com