- AAA Marine Engineering
- Argonautics Marine Engineering
- Bmt Scientific Marine Svc Inc
- Brian Hill Marine
- Chesapeake Sciences Corp
- Coast & Harbor Engineering
- DDL Omni Enginering
- Deep Ocean Engineering Inc
- DOER Marine Operations
- E G & G
- Eg & G
- Float Inc
- Gahagan & Bryant Assoc
- Glenn Gibson Jr Consultant
- Han Padron Assoc
- John Rice Marine Engineers
- L-3 Mpri Ship Analytics
- M H Systems
- Man Tech Systems Engineering
- MAR Inc
- Maricomp
- Maricomp
- Marine Consulting & Design
- Marine Consulting & Design
- Maritime Contract Svc
- MEA Yacht Equipment & Systs
- N Waller & Assoc Consulting
- Nautical Miles Engineering
- North Stonington Properties
- Northrop Grumman Corp
- Ocean Systems Inc
- Ramsden E & P Svc Inc
- Sampsel & Assoc
- Seaworthy Systems Inc
- Seaworthy Systems Inc
- Technical Marine Svc Inc
- Unified Industries Inc
- Werth Engineering & Marine
