Company lists · Data refreshed September 2026
Top 25 Maritime defense contractors based in the United States
RevenueBase identified 95 company matches for maritime defense contractors associated with the United States as of September 2026 and tracks 19,125 professional contacts across them, including 644 with verified work emails. San Diego is the largest hub.
This list covers company matches for maritime defense contractors associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest maritime defense contractors based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 8,318 contacts → | ||||
Exact match “General Dynamics Electric Boat is a business unit of General Dynamics with headquarters in Groton, CT.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 2 | 5,342 contacts → | ||||
Exact match “We serve those who protect our freedom.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 3 | 853 contacts → | ||||
Exact match “Bollinger Shipyards is the leading provider of quality new construction, repair and conversion products and services to both the military and commercial marine industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 4 | 679 contacts → | ||||
Exact match “Fairbanks Morse Defense (FMD) is the leading provider of the highest value equipment for naval defense customers.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 5 | 357 contacts → | ||||
Exact match “Founded in 1994 as a small, diversified professional services company, Delphinus today employs more than 650 professional and technical personnel supporting a customer base that…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 6 | 173 contacts → | ||||
Exact match “MIKEL was founded in to develop and deliver innovative technologies to the U.S.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 7 | 138 contacts → | ||||
Exact match “Patriot Maritime is a leading maritime contractor to the U.S.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 8 | 135 contacts → | ||||
Exact match “ThayerMahan is leading a transformation in how maritime solutions are delivered, sustained, and scaled.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 9 | 130 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 10 | 107 contacts → | ||||
Exact match “Swiftships is an ISO 9001 certified, USA shipbuilder, and global defense contractor which offers end-to-end engineering, shipbuilding, testing, and delivery services for new…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 11 | 97 contacts → | ||||
Exact match “L3 KEO employs a full spectrum of engineering and manufacturing disciplines to design and build sensor systems for submarines, surface ships, combat vehicles, and other defense…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 12 | 65 contacts → | ||||
Exact match “Maritime Security Services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 13 | 62 contacts → | ||||
Exact match “With more than 40 years of ship repair excellence, Vigor Marine CM San Diego (VMG CMSD) – formerly known as Continental Maritime of San Diego (CMSD) – stands as a vital force on…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 14 | 59 contacts → | ||||
Exact match “Cardinal Engineering provides world-class marine engineering services to the US Navy, industry partners, and other US government agencies.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 15 | 53 contacts → | ||||
Exact match “Seasats builds long-endurance autonomous surface vessels for defense, commercial, and scientific missions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 16 | 53 contacts → | ||||
Exact match “Our Purpose: We are committed to providing safe, quality and process-driven services for Federal and Commercial customers in the ship repair and new ship construction…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 17 | 50 contacts → | ||||
Exact match “International Systems Management Corp.(ISM) is a minority owned small business founded in January 2003 with expertise in the management of combat system and weapon system programs…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 18 | 47 contacts → | ||||
Exact match “Hydrasearch Company, LLC (Stevensville, MD) has been an established leader in manufacturing components and hardware for the maritime industry since 1962.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 19 | 46 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 20 | 41 contacts → | ||||
Exact match “Sea Machines Robotics is the lead provider of advanced technology for the marine and maritime sector with a product line of autonomous control and navigation systems for defense…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 21 | 40 contacts → | ||||
Exact match “Six Maritime is a service disabled, veteran-owned maritime security and training company specializing in advanced waterfront protection, autonomous systems integration, and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 22 | 36 contacts → | ||||
Exact match “Bay City Marine is a professionally managed maritime and commercial industrial repair company providing first time quality repair fabrication services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 23 | 35 contacts → | ||||
Exact match “We’re building autonomous ships for the U.S.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 24 | 31 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 25 | 24 contacts → | ||||
Exact match “HALO Maritime Defense Systems (HMDS) provides state-of-the-art, floating Security Barrier Systems to protect strategic maritime assets like ports, naval bases, nuclear power…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “maritime defense contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 95 maritime defense contractors based in the United States
See the full list, filter by size, metro and specialty, and access 644 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Maritime defense contractors based in the United States at a glance
As of Sep 17, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 95 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with the United States whose business descriptions match “maritime defense contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 644 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “maritime defense contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many maritime defense contractors are there based in the United States?
RevenueBase identified 95 company matches for maritime defense contractors associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
General Dynamics Electric Boat tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most maritime defense contractors?
San Diego leads with 5 company records, followed by Virginia Beach (4) and Norfolk (3).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 644 professional contacts with verified work emails tracked across these 95 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.
Ready to reach these companies? Verified emails and direct dials for all 95 maritime defense contractors based in the United States. Start with a free account, no credit card.
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Maritime defense contractors by geography
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Maritime defense contractors based in Australia
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
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- Oil and gas companies based in the United States
Company intelligence · public preview
Top 25 maritime defense contractors based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 95 matching company records for maritime defense contractors based in the United States, with 19,125 tracked contacts and 644 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 17, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 maritime defense contractors based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  General Dynamics Electric Boatgdeb.comHQ: Groton, CT, United StatesReported employees: 10001+ | Groton, CT, United States | 10001+ | Exact match | 8,318 contacts → |
“General Dynamics Electric Boat is a business unit of General Dynamics with headquarters in Groton, CT.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  HIIhii.comHQ: Newport News, VA, United StatesReported employees: 10001+ | Newport News, VA, United States | 10001+ | Exact match | 5,342 contacts → |
“We serve those who protect our freedom.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Bollinger Shipyardsbollingershipyards.comHQ: Lockport, United StatesReported employees: 5,001-10,000 | Lockport, United States | 5,001-10,000 | Exact match | 853 contacts → |
“Bollinger Shipyards is the leading provider of quality new construction, repair and conversion products and services to both the military and commercial marine industry.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Fairbanks Morse Defensefmdefense.comHQ: Beloit, WI, United StatesReported employees: 1,001-5,000 | Beloit, WI, United States | 1,001-5,000 | Exact match | 679 contacts → |
“Fairbanks Morse Defense (FMD) is the leading provider of the highest value equipment for naval defense customers.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Delphinus Engineering, INCdelphinus.com HQ: Eddystone, PA, United StatesReported employees: 501-1,000 | Eddystone, PA, United States | 501-1,000 | Exact match | 357 contacts → |
“Founded in 1994 as a small, diversified professional services company, Delphinus today employs more than 650 professional and technical personnel supporting a customer base that…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Mikel INCmikelinc.com HQ: Middletown, RI, United StatesReported employees: 201-500 | Middletown, RI, United States | 201-500 | Exact match | 173 contacts → |
“MIKEL was founded in to develop and deliver innovative technologies to the U.S.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Patriot Maritimepatriotships.comHQ: Concord, CA, United StatesReported employees: 11-50 | Concord, CA, United States | 11-50 | Exact match | 138 contacts → |
“Patriot Maritime is a leading maritime contractor to the U.S.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Thayermahan, INCthayermahan.comHQ: Groton, United StatesReported employees: 201-500 | Groton, United States | 201-500 | Exact match | 135 contacts → |
“ThayerMahan is leading a transformation in how maritime solutions are delivered, sustained, and scaled.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | United States Marine, INCusmi.com HQ: Gulfport, MS, United StatesReported employees: 11-50 | Gulfport, MS, United States | 11-50 | Exact match | 130 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 |  Swiftshipsswiftships.comHQ: Morgan City, LA, United StatesReported employees: 201-500 | Morgan City, LA, United States | 201-500 | Exact match | 107 contacts → |
“Swiftships is an ISO 9001 certified, USA shipbuilder, and global defense contractor which offers end-to-end engineering, shipbuilding, testing, and delivery services for new…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  L3 KEOl-3com.comHQ: Northampton, MA, United StatesReported employees: 201-500 | Northampton, MA, United States | 201-500 | Exact match | 97 contacts → |
“L3 KEO employs a full spectrum of engineering and manufacturing disciplines to design and build sensor systems for submarines, surface ships, combat vehicles, and other defense…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Trident Group America, INCgotridentgroup.comHQ: Fort Walton Beach, VA, United StatesReported employees: 51-200 | Fort Walton Beach, VA, United States | 51-200 | Exact match | 65 contacts → |
“Maritime Security Services.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Continental Maritime Of SAN Diegocmsd-msr.com HQ: San Diego, CA, United StatesReported employees: 201-500 | San Diego, CA, United States | 201-500 | Exact match | 62 contacts → |
“With more than 40 years of ship repair excellence, Vigor Marine CM San Diego (VMG CMSD) – formerly known as Continental Maritime of San Diego (CMSD) – stands as a vital force on…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Cardinal Engineering LLCcardinaleng.com HQ: Annapolis, MD, United StatesReported employees: 51-200 | Annapolis, MD, United States | 51-200 | Exact match | 59 contacts → |
“Cardinal Engineering provides world-class marine engineering services to the US Navy, industry partners, and other US government agencies.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Seasatsseasats.com HQ: San Diego, CA, United StatesReported employees: 51-200 | San Diego, CA, United States | 51-200 | Exact match | 53 contacts → |
“Seasats builds long-endurance autonomous surface vessels for defense, commercial, and scientific missions.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Mills Marine & Ship Repair LLCmillsmarineshiprepair.com HQ: Suffolk, VA, United StatesReported employees: 11-50 | Suffolk, VA, United States | 11-50 | Exact match | 53 contacts → |
“Our Purpose: We are committed to providing safe, quality and process-driven services for Federal and Commercial customers in the ship repair and new ship construction…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  International Systems Management Corpism-hq.comHQ: Greenbelt, MD, United StatesReported employees: 51-200 | Greenbelt, MD, United States | 51-200 | Exact match | 50 contacts → |
“International Systems Management Corp.(ISM) is a minority owned small business founded in January 2003 with expertise in the management of combat system and weapon system programs…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Hydrasearch Company, LLChydrasearch.com HQ: Stevensville, MD, United StatesReported employees: 51-200 | Stevensville, MD, United States | 51-200 | Exact match | 47 contacts → |
“Hydrasearch Company, LLC (Stevensville, MD) has been an established leader in manufacturing components and hardware for the maritime industry since 1962.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  SEA Engineering, INCseaengineering.comHQ: Honolulu, United StatesReported employees: 51-200 | Honolulu, United States | 51-200 | Exact match | 46 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 |  SEA Machines Roboticssea-machines.comHQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 41 contacts → |
“Sea Machines Robotics is the lead provider of advanced technology for the marine and maritime sector with a product line of autonomous control and navigation systems for defense…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  SIX Maritimesixmaritime.comHQ: San Diego, CA, United StatesReported employees: 51-200 | San Diego, CA, United States | 51-200 | Exact match | 40 contacts → |
“Six Maritime is a service disabled, veteran-owned maritime security and training company specializing in advanced waterfront protection, autonomous systems integration, and…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  BAY City Marine, INCbaycmarine.comHQ: National City, CA, United StatesReported employees: 51-200 | National City, CA, United States | 51-200 | Exact match | 36 contacts → |
“Bay City Marine is a professionally managed maritime and commercial industrial repair company providing first time quality repair fabrication services.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Blue Water Autonomy INCblw.ai HQ: Boston, DE, United StatesReported employees: 11-50 | Boston, DE, United States | 11-50 | Exact match | 35 contacts → |
“We’re building autonomous ships for the U.S.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Global Maritek Systems, INCglobalmaritek.comHQ: St. Augustine, FL, United StatesReported employees: 51-200 | St. Augustine, FL, United States | 51-200 | Exact match | 31 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 |  Halo Maritime Defense Systemshalodefense.comHQ: Newton, United StatesReported employees: 11-50 | Newton, United States | 11-50 | Exact match | 24 contacts → |
“HALO Maritime Defense Systems (HMDS) provides state-of-the-art, floating Security Barrier Systems to protect strategic maritime assets like ports, naval bases, nuclear power…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 95 company matches
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Maritime defense contractors: dataset insights
September 17, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
95 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 95 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 17, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for maritime defense contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many maritime defense contractors did RevenueBase find based in the United States?
The saved snapshot records 95 matching company records, 19,125 tracked contacts and 644 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 17, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Maritime defense contractors by geography
Cite this list
RevenueBase Data Team. Top 25 maritime defense contractors based in the United States. Snapshot: September 17, 2026. https://revenuebase.ai/companies/maritime-defense-contractors/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Maritime defense contractors based in Australia
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
Company intelligence · public preview
Top 25 maritime defense contractors based in the United States
RevenueBase records 95 matching company records for maritime defense contractors based in the United States, with 19,125 tracked contacts and 644 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 17, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 maritime defense contractors based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | General Dynamics Electric Boatgdeb.com HQ: Groton, CT, United StatesReported employees: 10001+ | Groton, CT, United States | 10001+ | Exact match | 8,318 contacts → |
“General Dynamics Electric Boat is a business unit of General Dynamics with headquarters in Groton, CT.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HIIhii.com HQ: Newport News, VA, United StatesReported employees: 10001+ | Newport News, VA, United States | 10001+ | Exact match | 5,342 contacts → |
“We serve those who protect our freedom.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Bollinger Shipyardsbollingershipyards.com HQ: Lockport, United StatesReported employees: 5,001-10,000 | Lockport, United States | 5,001-10,000 | Exact match | 853 contacts → |
“Bollinger Shipyards is the leading provider of quality new construction, repair and conversion products and services to both the military and commercial marine industry.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Fairbanks Morse Defensefmdefense.com HQ: Beloit, WI, United StatesReported employees: 1,001-5,000 | Beloit, WI, United States | 1,001-5,000 | Exact match | 679 contacts → |
“Fairbanks Morse Defense (FMD) is the leading provider of the highest value equipment for naval defense customers.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Delphinus Engineering, INCdelphinus.com HQ: Eddystone, PA, United StatesReported employees: 501-1,000 | Eddystone, PA, United States | 501-1,000 | Exact match | 357 contacts → |
“Founded in 1994 as a small, diversified professional services company, Delphinus today employs more than 650 professional and technical personnel supporting a customer base that…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Mikel INCmikelinc.com HQ: Middletown, RI, United StatesReported employees: 201-500 | Middletown, RI, United States | 201-500 | Exact match | 173 contacts → |
“MIKEL was founded in to develop and deliver innovative technologies to the U.S.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Patriot Maritimepatriotships.com HQ: Concord, CA, United StatesReported employees: 11-50 | Concord, CA, United States | 11-50 | Exact match | 138 contacts → |
“Patriot Maritime is a leading maritime contractor to the U.S.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Thayermahan, INCthayermahan.com HQ: Groton, United StatesReported employees: 201-500 | Groton, United States | 201-500 | Exact match | 135 contacts → |
“ThayerMahan is leading a transformation in how maritime solutions are delivered, sustained, and scaled.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | United States Marine, INCusmi.com HQ: Gulfport, MS, United StatesReported employees: 11-50 | Gulfport, MS, United States | 11-50 | Exact match | 130 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | Swiftshipsswiftships.com HQ: Morgan City, LA, United StatesReported employees: 201-500 | Morgan City, LA, United States | 201-500 | Exact match | 107 contacts → |
“Swiftships is an ISO 9001 certified, USA shipbuilder, and global defense contractor which offers end-to-end engineering, shipbuilding, testing, and delivery services for new…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | L3 KEOl-3com.com HQ: Northampton, MA, United StatesReported employees: 201-500 | Northampton, MA, United States | 201-500 | Exact match | 97 contacts → |
“L3 KEO employs a full spectrum of engineering and manufacturing disciplines to design and build sensor systems for submarines, surface ships, combat vehicles, and other defense…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Trident Group America, INCgotridentgroup.com HQ: Fort Walton Beach, VA, United StatesReported employees: 51-200 | Fort Walton Beach, VA, United States | 51-200 | Exact match | 65 contacts → |
“Maritime Security Services.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Continental Maritime Of SAN Diegocmsd-msr.com HQ: San Diego, CA, United StatesReported employees: 201-500 | San Diego, CA, United States | 201-500 | Exact match | 62 contacts → |
“With more than 40 years of ship repair excellence, Vigor Marine CM San Diego (VMG CMSD) – formerly known as Continental Maritime of San Diego (CMSD) – stands as a vital force on…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Cardinal Engineering LLCcardinaleng.com HQ: Annapolis, MD, United StatesReported employees: 51-200 | Annapolis, MD, United States | 51-200 | Exact match | 59 contacts → |
“Cardinal Engineering provides world-class marine engineering services to the US Navy, industry partners, and other US government agencies.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Seasatsseasats.com HQ: San Diego, CA, United StatesReported employees: 51-200 | San Diego, CA, United States | 51-200 | Exact match | 53 contacts → |
“Seasats builds long-endurance autonomous surface vessels for defense, commercial, and scientific missions.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Mills Marine & Ship Repair LLCmillsmarineshiprepair.com HQ: Suffolk, VA, United StatesReported employees: 11-50 | Suffolk, VA, United States | 11-50 | Exact match | 53 contacts → |
“Our Purpose: We are committed to providing safe, quality and process-driven services for Federal and Commercial customers in the ship repair and new ship construction…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | International Systems Management Corpism-hq.com HQ: Greenbelt, MD, United StatesReported employees: 51-200 | Greenbelt, MD, United States | 51-200 | Exact match | 50 contacts → |
“International Systems Management Corp.(ISM) is a minority owned small business founded in January 2003 with expertise in the management of combat system and weapon system programs…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Hydrasearch Company, LLChydrasearch.com HQ: Stevensville, MD, United StatesReported employees: 51-200 | Stevensville, MD, United States | 51-200 | Exact match | 47 contacts → |
“Hydrasearch Company, LLC (Stevensville, MD) has been an established leader in manufacturing components and hardware for the maritime industry since 1962.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | SEA Engineering, INCseaengineering.com HQ: Honolulu, United StatesReported employees: 51-200 | Honolulu, United States | 51-200 | Exact match | 46 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 | SEA Machines Roboticssea-machines.com HQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 41 contacts → |
“Sea Machines Robotics is the lead provider of advanced technology for the marine and maritime sector with a product line of autonomous control and navigation systems for defense…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | SIX Maritimesixmaritime.com HQ: San Diego, CA, United StatesReported employees: 51-200 | San Diego, CA, United States | 51-200 | Exact match | 40 contacts → |
“Six Maritime is a service disabled, veteran-owned maritime security and training company specializing in advanced waterfront protection, autonomous systems integration, and…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | BAY City Marine, INCbaycmarine.com HQ: National City, CA, United StatesReported employees: 51-200 | National City, CA, United States | 51-200 | Exact match | 36 contacts → |
“Bay City Marine is a professionally managed maritime and commercial industrial repair company providing first time quality repair fabrication services.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Blue Water Autonomy INCblw.ai HQ: Boston, DE, United StatesReported employees: 11-50 | Boston, DE, United States | 11-50 | Exact match | 35 contacts → |
“We’re building autonomous ships for the U.S.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Global Maritek Systems, INCglobalmaritek.com HQ: St. Augustine, FL, United StatesReported employees: 51-200 | St. Augustine, FL, United States | 51-200 | Exact match | 31 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | Halo Maritime Defense Systemshalodefense.com HQ: Newton, United StatesReported employees: 11-50 | Newton, United States | 11-50 | Exact match | 24 contacts → |
“HALO Maritime Defense Systems (HMDS) provides state-of-the-art, floating Security Barrier Systems to protect strategic maritime assets like ports, naval bases, nuclear power…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Maritime defense contractors: dataset insights
September 17, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
95 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 95 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 17, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for maritime defense contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many maritime defense contractors did RevenueBase find based in the United States?
The saved snapshot records 95 matching company records, 19,125 tracked contacts and 644 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 17, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Maritime defense contractors by geography
Cite this list
RevenueBase Data Team. Top 25 maritime defense contractors based in the United States. Snapshot: September 17, 2026. https://revenuebase.ai/companies/maritime-defense-contractors/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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