Lombardi Undersea LLC has been in the business of underwater intervention for over 20 years, providing specialized products and services across numerous fields that require occupational diving practices - inshore construction, engineering surveys & inspections, utility infrastructure, harbor services, husbandry, scientific exploration, aquaculture, marine harvesting, prospecting, and other working environments.

In many cases, there are perceived limitations in the capabilities of divers at work due to technical or regulatory complexities. Our proven niche is in developing specialized tools and techniques that overcome these limitations to make diving more efficient, cost-effective, and viewed as a more valuable tool within both industrial and academic settings.

We've developed items from as simple as lighting and camera systems, specimen collectors, and routine diver dress, to as complex as our own life support. 

This site lists items for sale that have found some consumer market success, though is far from our full portfolio. We produce limited runs of these specialized items with our partners and maintain a small inventory. As we research and develop new products, we often produce short runs to test the market, so our consumer product portfolio may vary from time to time.

Contact us to discuss your underwater requirements.

We reinvest heavily into evolving advanced diving technology and techniques through a unique partnership with Ocean Opportunity Inc., a 501(c)3 not for profit organization.


Our Middletown, Rhode Island facility is constantly evolving to meet customer demands and expand our internal capabilities. We can provide expertise and services in the following Research, Development, Technology, & Engineering (RDTE) areas:

  • custom rebreather assemblies and modifications
  • non-invasive ventilation testing and research
  • life systems integration
  • custom subsea camera and lighting systems
  • custom tooling for manned and unmanned vehicles
  • custom pneumatic and hydraulic hose assemblies
  • subsea power supplies
  • PCB design
  • small parts prototyping
  • potted electrical & pneumatic assemblies
  • light plastics and metals fabrication
  • MIG/TIG/Arc welding
  • fiberglass repairs and custom molding
  • pressure testing to 500psi
  • HP cylinder fills to 4000psi (CGA Grade E air, oxygen, nitrox, mixed-gas)