About Us

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more up-to-date pictures and videos of some of our recent works!


"Grow Contractors is a group of Cannabis consultants, contractors, and master growers combining their talents to bring you efficient and high-quality grow spaces. We offer a practical approach to cannabis design, construction, and operation to create profitable and compliant facilities.

What separates us from other contractors/consultants is our experience, honesty, and client satisfaction. Too many companies are taking advantage of the 'Green Rush' and charging exorbitant prices for their services. Many push their clients in directions which aren't sustainable.

We bring a custom tailored approach to every client, because there is no one-fits-all approach to cannabis facilities. Hearing out your ideas, guiding them, and bringing them to fruition is our passion.

We want to see you succeed in this industry!"

Robert B. Kressa II - Owner, Grow Contractors Group


Robert - ceo

Founder of Grow Contractors Group at the age of 19, Robert got his start by building and operating a cultivation facility in California with friends during the infancy of the Medical Marijuana Movement. Initially, he applied his experience in CAD and Construction to do consulting work with Cultivation Facilities all over California and in other Medical States. When recreational Cannabis became law, he expanded the company duties to include staffing services as well as becoming a national business that took specialists to wherever Cannabis consulting or construction was needed.

George - Architect

George is a licensed Architect and develops all aspects of architecture and engineering phases. George is a member of the American Institute of Architects (AIA), International Code Council (ICC), National Fire Protection Association (NFPA), and is certified with the National Council of Architectural Registration Boards (NCARB).

Gary - Engineer

Garry has over 40 years of engineering experience. Garry’s expertise includes the design of hospitals, clean rooms, green houses, and a myriad of others. Garry is licensed in California, Nevada, and Washington, and holds a LEED professional credential.

larry - ceo

Larry is a field and design engineer for utility power and industrial electrical distribution systems and subsystems. Larry offers over 45 years of experience in the field. Larry is a member of the Institute of Electrical and Electronics Engineers (IEEE) and holds a professional license in Idaho, Arizona, Colorado, Oregon, California, and Texas.


Recent Works

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