TRAINING COMMERCIAL DIVERS SINCE 1968
train FOR THE TOUGHEST JOBS UNDERWATER.
DIT prepares qualified candidates for commercial diving careers through 900 hours of real-world open-water training in Seattle, 13 certifications, and direct career support into inland, offshore, and specialized diving.
Graduation and placement figures reflect DIT’s published June 2023-May 2024 reporting period. ROI ranking and certification eligibility depend on the cited source and individual requirements. 10-year ROI source (PDF) ↗
Commercial divers work in real water.
That’s where we train.
Cold water. Limited visibility. Weather. Equipment. Communication. Teamwork. Lake Union is not a controlled environment you can fully reproduce in a shallow tank.
At DIT, you learn to manage the work, your equipment, your team, and yourself when conditions are not perfect. The training is demanding because the job is demanding.
- Open-water training in Seattle’s Lake Union
- Floating barges, the M/V Response, and 165-foot depth
- Real equipment, real crew roles, real working conditions
What seven months at DIT looks like.
Work with helmets, breathing equipment, communications, and tender roles.
Build topside technique, then learn what changes when the work goes wet.
Use tools and lifting systems as part of a coordinated dive team.
Survey, plan, communicate, and execute work around submerged structures and vessels.
Understand the science and procedures that keep divers working safely.
Build the habits, judgment, and accountability expected on a professional crew.
Ask the questions that matter.
Compare the things that change your training, your cost, and your first job.
Open water in the Pacific Northwest, including Lake Union.
Training should resemble the environment you will work in.
Up to 165 feet.
Depth changes equipment, procedures, and decompression planning.
DCBC unrestricted surface-supplied diver certification, ADCI Entry Level Tender/Diver endorsement, and more.
Ask who issues each credential and what qualifies you to receive it.
900 hours, approximately seven months.
Compare total hours and the actual mix of classroom, shop, and water time.
91% graduation and 90% job placement for the published reporting period.
Look for the denominator, date, and definition behind every percentage.
Seven months is a commitment.
The return matters.
Career training has to make a serious candidate understand the work, the cost, the tradeoffs, and the economic possibility. DIT’s published proof is part of that decision.
2025 Georgetown University Center on Education and the Workforce 10-year ROI estimate.
Highest-ranked Washington institution in the cited 10-year ROI analysis.
Ranked 29th among nearly 4,600 institutions in the cited analysis.
Ranked 18th among certificate institutions in the same analysis.
Source: Return on investment (ROI) at for-profit colleges (PDF) ↗
ROI figures reflect the cited report’s methodology and are not a guarantee of individual outcomes.
Graduation is the start.
Commercial diving can lead into different environments and specialties as experience grows. The first step is learning how the work connects.
Offshore
Subsea construction, maintenance, welding, and burning in offshore environments.
Inland construction
Bridges, dams, piers, vessels, and other infrastructure in inland water.
Inspection / NDT
Inspection, testing, documentation, and specialized technical work.
Salvage
Survey, rigging, lifting, and recovery work around submerged assets.
Underwater construction
Use diving and tool skills on structures, repair, and marine projects.
Hazmat
Build a foundation for controlled, procedure-led work in difficult conditions.
Marine infrastructure
Contribute to the ports, vessels, utilities, and systems people depend on.
Advanced pathways
Keep learning toward advanced or saturation pathways as your experience grows.
Learn from people who have done the work.
Industry-experienced instructors. Direct feedback. Team accountability. Safety before ego.
“THE CLASS YOU ARE IN WILL DEFINITELY BECOME YOUR FAMILY.”
– TYLER SUTHERLAND
Same discipline.
New mission.
Ready for your next mission.
Since 1968, DIT has maintained a strong veteran connection. Military experience transfers naturally here: procedure, accountability, teamwork, and mission focus.
Explore veteran education benefits ↗
Know the investment before you commit.
Tuition is only part of the decision. Gear, physical preparation, housing, transportation, and living costs matter too. DIT’s admissions and financial-aid teams can help you build a serious plan.
BUILD A CAREER UNDERWATER.
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You won’t be training for a desk job.
This is seven months of hands-on training for an underwater career.
Built for people who show up ready to work.

