Commercial Divers International: Arizona’s only underwater welding and surface-supplied training institution, founded by today’s industry experts

Next day class begins on October 15th (7AM to 5PM t-f)

Last night class of 2019 October 28th (5pm-10Pm M-F )

Call (623) 882-3483 today to schedule a tour

Begin your career in underwater construction by learning topside/underwater welding, hyperbaric chamber operation, surface-supplied diving, and so much more in our Commercial Diver program.










NEWS UPDATE: Effective November 6th, 2018, Commercial Divers International has been accepted into candidacy for initial National Accreditation through the Council on Occupational Education!

Commercial Divers International Mission Statement

Commercial Divers International strives to be the premier commercial diver education facility in the country. We are committed to developing individuals to become elite professionals in the marine industry who are sought out by top employers.

Why Choose CDI?

CDI’s Commercial Diver program combines recent industry expertise and veteran military training to prepare our students to be the best commercial divers in the industry.  By teaching physics, physiology, and diving medicine to US Navy standards alongside underwater welding, diving operations, and planning based on the experience of company job site owner/operators, CDI was founded to train divers employers want.

Commercial Diving Careers

Most diving jobs require the employee to be underwater to inspect, repair, remove, or install equipment and structures. Divers use a variety of power and hand tools, such as drills, sledgehammers, torches, and welding equipment.

More Than Just Diving…

The skills you’ll learn at CDI won’t limit you to one career track.  Your training can take you to the construction, commercial fishing, offshore drilling, topside/underwater welding, or hyperbaric medicine industries…


Meet Our Founders

Commercial Divers come from many backgrounds and take different career paths.  Learn about our founders and their careers in Surface-Supplied Diving through both Military and Commercial perspectives.



Basic requirements for admission are the completion of an ADCI Diving Physical and a High School Diploma, GED, or equivalent. No previous diving, welding, or construction experience is necessary. Schedule a tour and visit to start the application process with CDI.


Required Gear

Students are required to have the following equipment in order to complete the diving portions of the program. You may bring any gear you already own or purchase new/used equipment from any retail source.

Financial Aid

Traditional financing for the cost of tuition is available for all students regardless of credit, with interest-only payments while in school.


ADCI Diving Physical

All students must complete an ADCI diving physical before any hyperbaric chamber or diving exposure.  Some medical conditions may be disqualifying for diving.


For Veterans and Military Families

CDI is dedicated to the success of our veteran students and is proud to be operated by veterans. Because of our small program size, CDI staff is able to maintain thorough contact with each of our students, and our staff of former service members recognizes the unique needs of veterans and their families whether they are making their first adjustment into civilian life or just looking for a change in career. As our program grows, we are committed to increasing our outreach and resources specific to veterans as much as possible.


Commercial Divers International is proud to be a 2018 Military Friendly® Silver School.

GI BILL ® AND VR&E proudly accepted

Continue reading “For Veterans and Military Families”

CDI Campus

CDI’s facility was built specifically to train commercial divers. Diver training occurs on site in 3 of our indoor 20,000 gallon training tanks. CDI is the only diving school to offer a penetration tank to simulate the experience of pipeline diving.

Contact us today to schedule a tour of our facility and learn more about our program.

4055 S Sarival Ave Goodyear, AZ 85338

(623) 882-3483


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Helmet Diving Experience

Commercial Divers International is excited to be the only diver training school in the country offering anyone in appropriate physical shape a chance to experience the conditions an underwater, surface-supplied diver faces. The full-helmet diver experience is a great chance for people hoping to better their life working in the commercial diving industry get acquainted with the equipment they will be using in the field before committing to a 7-month program, and is also geared towards anyone looking to enjoy the thrill.

The diver experience is a half-day beginning with an approximately twenty minute safety and training video, then two separate dives in our facilities’ training tanks, with a total underwater time of about 30 – 60 minutes per individual diver. Typical underwater activities include simulated flanging up of a pipeline, mechanical construction projects, mechanical puzzles, limited visibility puzzles, and more. Specific tank setup and activity will depend on your booking date, and please feel free to let us know if there is something specific you are interested in doing while underwater.

Continue reading “Helmet Diving Experience”


CDI is a member of or affiliated with the following agencies and institutions:

ADCI Association of Diving Contractors International
DAN Divers Alert Network
American Welding Society
ASNT American Society of Non-Destructive Testing
AZPPSE Arizona Seal
Kirby Morgan Dive Systems
US Department of Labor
Military Friendly 2018