San Francisco Bay Area General Contractor

San Francisco Bay Area General Contractor

G.T.I, Inc has been offering general contracting services to the San Francisco Bay Area and all surrounding counties since 1989. We are specialize in all kinds of Commercial and Residential Construction Work. You can view our full list of services under the Services Menu. With over 20 years experience, you are guaranteed to have peace of mind knowing Greentech Industry, Inc is handling your general contracting needs.

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Mark Joswig

An industry leader for over thirty five years, I have played many roles throughout my career from master carpenter to General Contractor and Construction Manager, as well as Design-Builder. I have created many successful projects that were given recognition in the community, and by the Owner's, and have enhanced the built environment throughout the country.

I have also worked in the very large corporate sector as a Director of Preconstruction and Estimating where I was fortunate to have the opportunity to create, in collaboration with the Owner's, Architects and Engineers, and all other project stakeholders, some of the most beautiful and efficient buildings being produced. It was in this environment that I also was able to create LEED Certified buildings, to add more in the market sectors that I was working in. These market sectors included, but were not limited to, hospitality and resorts, judicial, general office, retail, higher education, corporate office, and many other building types.

I obtained my LEED AP credential in an effort to be able to be even more relevant in the design process and create even more efficient buildings and creating a better working and living environment for wherever, and for whomever, I was involved in producing, with all of the team members, these special buildings that are now standing and functioning as positive daily reminders of what can be accomplished in this industry utilizing knowledge and tools available to us.

Completed projects "Petty - High Street"

Completed project - " Remodeling Project - ANDERSON STREET- San Francisco "

Completed project  "933-46-street"

Completed Projects - "Residential - Mr. & Ms. Corotan (Walnut Creek)"