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Nationwide Commercial Diving Services – Rapid City, SD


Rapid City, SD

Diver-founded and family-owned, Midco is proud to be considered the most experienced and well-equipped commercial diving operation in the USA, after decades of hard work. Today, the contracting & marine services company has expanded to employ 30+ full-time staff members, including divers, supervisors, and project managers, as well as sales and support staff. Our headquarters in Rapid City, South Dakota, is the heart of Midco’s operations. From this central location, we coordinate and manage our extensive range of diving services across the nation. The Rapid City office is home to our most seasoned professionals, state-of-the-art equipment, and comprehensive support services. Since our inception, we have undertaken countless underwater projects, refining our techniques and expanding our service offerings. The Rapid City team remains committed to excellence, ensuring that every project we handle, from local endeavors to nationwide contracts, meets the highest standards of safety and efficiency.

Full Service

Commercial Diving

It's our mission to provide respected and dependable commercial diving services that adhere to industry standards in safety and compliance. In all operations, we aim to meet and exceed the expectations of our clients while upholding the integrity of Midco Diving & Marine Services, Inc., as a company, the commercial dive industry, as a whole, and the members of our team, as individuals.

Rapid City
3111 Lien St
Rapid City, SD 57702


At Midco Diving & Marine Services, we take on the toughest underwater conditions you can imagine. After nearly twenty years of commercial diving experience from underwater construction to municipal water tank repair – we’ve gone in where few others would even think. Highly contaminated water, confined work spaces, radiation, zero visibility, and high-altitude operations are all fair game. Whatever you’ve got in mind, we welcome the challenge.

Get in touch

Whether you're working through the details, or your deadline is set, we're interested in hearing from you. If you need to speak with us urgently, our dispatch line is staffed 24/7.

    CA General “A” Contractor License #1003247
    WA General Contractor License # MIDCODM825MT
    AZ General Contractor License # ROC350559


    We provide turnkey commercial diving services for unique industrial and municipal needs

    Our divers are experienced in underwater inspection, marine construction, repair projects, and so much more. From project design to execution and oversight, our staff of qualified and experienced project managers, DPICs, equipment operators, and certified commercial divers will complete your project safely, effectively, and efficiently. The scope of Midco’s commercial diving underwater service is substantial. Professional diving services include: