Company lists · Data refreshed November 2026
Top 24 Marine underwriters based in the United States
RevenueBase identified 420 company matches for marine underwriters associated with the United States as of November 2026 and tracks 14,810 professional contacts across them, including 7,816 with verified work emails. Houston is the largest hub.
This list covers company matches for marine underwriters 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 November 6, 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 24 largest marine underwriters based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,181 contacts → | ||||
Exact match “When you look at Amica, you’ll see we’re different.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 2,246 contacts → | ||||
Exact match “Philadelphia Insurance Companies, a member of the Tokio Marine Group, designs, markets and underwrites commercial property/casualty and professional liability insurance products…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 1,176 contacts → | ||||
Exact match “American Modern provides insurance solutions for customers who need coverage not readily found in the general market.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 929 contacts → | ||||
Exact match “SageSure is building the world’s leading catastrophe-risk franchise.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 690 contacts → | ||||
Exact match “Core Specialty, through its subsidiary insurers, offers a diversified range of property, casualty, and marine insurance products for small to mid-sized businesses.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 512 contacts → | ||||
Exact match “As an MGA, we offer a great deal of specialty products with professional service.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 404 contacts → | ||||
Exact match “Founded in 2014, by a team with deep experience across underwriting, analytics, reinsurance and capital markets, Palomar is an innovative specialty insurer serving residential and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 337 contacts → | ||||
Exact match “Atlantic Casualty Insurance Company (Atlantic Casualty) was formed by Strickland Insurance Group (SIG) in 1983 to underwrite a substantial book of non-standard personal auto.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 175 contacts → | ||||
Exact match “The American Equity Underwriters, Inc.(AEU) delivers specialized coverage and risk management solutions to waterfront employers across the United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 167 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 137 contacts → | ||||
Exact match “Turn Services is one of the largest independent fleeting and shifting companies in the United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 127 contacts → | ||||
Exact match “Signal Mutual Indemnity Association Ltd was established in 1986 to meet the demand for reasonable and stable longshore workers’ compensation insurance rates.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 100 contacts → | ||||
Exact match “Founded in 1861, Foa & Son are international insurance brokers based in New York City.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 92 contacts → | ||||
Exact match “For more than a century, Wells Insurance has combined the strength of a nationally competitive brokerage with the personal commitment of a family business.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 86 contacts → | ||||
Exact match “Our professional team of financing and insurance specialists have years of experience and are available to help answer your questions throughout the process.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 81 contacts → | ||||
Exact match “Baker Marine Solutions is a leading provider of marine assurance, engineering and consulting services, performing DP assurance, OCIMF- OVID inspections, IMCA CMID inspections…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 76 contacts → | ||||
Exact match “Cochrane & Company was established in 1960 in Spokane, Washington.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 64 contacts → | ||||
Exact match “Berkley Fire & Marine was launched in 2013 and is a Berkley company offering preferred inland marine and related property risks and services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 57 contacts → | ||||
Exact match “Founded in New York in 1917, celebrating 106 years of service, the American Club is the only P&I mutual domiciled in the Americas.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 51 contacts → | ||||
Exact match “Deans & Homer was established in 1856 and is one of the oldest continuously operating companies in California.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 50 contacts → | ||||
Exact match “International Marine Underwriters (IMU) traces its roots to the early 1900s, and offers a full range of ocean and inland marine insurance solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 47 contacts → | ||||
Exact match “Berkley Offshore is an insurance provider specialising in Energy Upstream, Energy Liability and Marine Insurance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 47 contacts → | ||||
Exact match “At Ascot U.S, we are offering specialty solutions at scale: we understand our markets, we strive to maintain the highest level of expertise in our fields, and we are laser-focused…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 47 contacts → | ||||
Exact match “Global Marine Insurance Agency, a division of Specialty Program Group LLC provides specialized insurance solutions to boat, yacht and marine business owners.” Recorded in the RevenueBase company graph · Nov 6, 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 “marine underwriters”. 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 24 of 420 marine underwriters based in the United States
See the full list, filter by size, metro and specialty, and access 7,816 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Marine underwriters based in the United States at a glance
As of Nov 6, 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 420 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 “marine underwriters” 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 7,816 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 November 6, 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 “marine underwriters”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many marine underwriters are there based in the United States?
RevenueBase identified 420 company matches for marine underwriters associated with the United States as of November 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?
Amica Insurance tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most marine underwriters?
Houston leads with 23 company records, followed by New York (19) and Fort Lauderdale (15).
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 7,816 professional contacts with verified work emails tracked across these 420 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 November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 420 marine underwriters based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Marine underwriters by geography
- Marine underwriters based in Hamburg, Germany
- Marine underwriters based in London, United Kingdom
- Marine underwriters based in Australia
- Marine underwriters based in Belgium
- Marine underwriters based in Brazil
- Marine underwriters based in Canada
- Marine underwriters based in France
- Marine underwriters based in Germany
- Marine underwriters based in Greece
- Marine underwriters based in India
- Marine underwriters based in Italy
- Marine underwriters based in Malaysia
Browse the directory
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
- Marine underwriters based in Hamburg, Germany
- Marine underwriters based in London, United Kingdom
- Marine underwriters based in Australia
- Marine underwriters based in Belgium
- Marine underwriters based in Brazil
- Marine underwriters based in Canada
Company intelligence · public preview
Top 24 marine underwriters 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 420 matching company records for marine underwriters based in the United States, with 14,810 tracked contacts and 7,816 verified work emails.
This public preview shows 24 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 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 24 marine underwriters 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 |  Amica Insuranceamica.comHQ: Lincoln, RI, United StatesReported employees: 1,001-5,000 | Lincoln, RI, United States | 1,001-5,000 | Exact match | 3,181 contacts → |
“When you look at Amica, you’ll see we’re different.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Philadelphia Insurance Companiesphly.comHQ: Bala Cynwyd, PA, United StatesReported employees: 1,001-5,000 | Bala Cynwyd, PA, United States | 1,001-5,000 | Exact match | 2,246 contacts → |
“Philadelphia Insurance Companies, a member of the Tokio Marine Group, designs, markets and underwrites commercial property/casualty and professional liability insurance products…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  American Modern Insurance Groupamig.comHQ: Cincinnati, OH, United StatesReported employees: 1,001-5,000 | Cincinnati, OH, United States | 1,001-5,000 | Exact match | 1,176 contacts → |
“American Modern provides insurance solutions for customers who need coverage not readily found in the general market.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Sagesuresagesure.comHQ: Jersey City, NJ, United StatesReported employees: 1,001-5,000 | Jersey City, NJ, United States | 1,001-5,000 | Exact match | 929 contacts → |
“SageSure is building the world’s leading catastrophe-risk franchise.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Core Specialty Insurance Holdings, INCcorespecialty.comHQ: Cincinnati, OH, United StatesReported employees: 1,001-5,000 | Cincinnati, OH, United States | 1,001-5,000 | Exact match | 690 contacts → |
“Core Specialty, through its subsidiary insurers, offers a diversified range of property, casualty, and marine insurance products for small to mid-sized businesses.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Bass Underwritersbassuw.comHQ: Plantation, TX, United StatesReported employees: 501-1,000 | Plantation, TX, United States | 501-1,000 | Exact match | 512 contacts → |
“As an MGA, we offer a great deal of specialty products with professional service.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Palomarplmr.comHQ: La Jolla, MN, United StatesReported employees: 501-1,000 | La Jolla, MN, United States | 501-1,000 | Exact match | 404 contacts → |
“Founded in 2014, by a team with deep experience across underwriting, analytics, reinsurance and capital markets, Palomar is an innovative specialty insurer serving residential and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Atlantic Casualty Insurance COatlanticcasualty.netHQ: Goldsboro, VA, United StatesReported employees: 201-500 | Goldsboro, VA, United States | 201-500 | Exact match | 337 contacts → |
“Atlantic Casualty Insurance Company (Atlantic Casualty) was formed by Strickland Insurance Group (SIG) in 1983 to underwrite a substantial book of non-standard personal auto.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  The American Equity Underwriters, INCamequity.comHQ: Mobile, AL, United StatesReported employees: 51-200 | Mobile, AL, United States | 51-200 | Exact match | 175 contacts → |
“The American Equity Underwriters, Inc.(AEU) delivers specialized coverage and risk management solutions to waterfront employers across the United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Phoenix International Holdings, INCphnx-international.comHQ: Largo, LA, United StatesReported employees: 201-500 | Largo, LA, United States | 201-500 | Exact match | 167 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 |  Turn Servicesturnservices.comHQ: New Orleans, LA, United StatesReported employees: 201-500 | New Orleans, LA, United States | 201-500 | Exact match | 137 contacts → |
“Turn Services is one of the largest independent fleeting and shifting companies in the United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Signal Mutualsignalmutual.comHQ: South Norwalk, CT, United StatesReported employees: 51-200 | South Norwalk, CT, United States | 51-200 | Exact match | 127 contacts → |
“Signal Mutual Indemnity Association Ltd was established in 1986 to meet the demand for reasonable and stable longshore workers’ compensation insurance rates.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  FOA & SON Insurancefoason.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 100 contacts → |
“Founded in 1861, Foa & Son are international insurance brokers based in New York City.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Wells Insurancewellsins.comHQ: Wilmington, NC, United StatesReported employees: 51-200 | Wilmington, NC, United States | 51-200 | Exact match | 92 contacts → |
“For more than a century, Wells Insurance has combined the strength of a nationally competitive brokerage with the personal commitment of a family business.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Newcoastnewcoast.comHQ: Clearwater, FL, United StatesReported employees: 51-200 | Clearwater, FL, United States | 51-200 | Exact match | 86 contacts → |
“Our professional team of financing and insurance specialists have years of experience and are available to help answer your questions throughout the process.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Baker Marine Solutions, LLCbakermarinesolutions.comHQ: Covington, LA, United StatesReported employees: 11-50 | Covington, LA, United States | 11-50 | Exact match | 81 contacts → |
“Baker Marine Solutions is a leading provider of marine assurance, engineering and consulting services, performing DP assurance, OCIMF- OVID inspections, IMCA CMID inspections…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Cochrane & Companymarketing.cochraneco.comHQ: Spokane, WA, United StatesReported employees: 51-200 | Spokane, WA, United States | 51-200 | Exact match | 76 contacts → |
“Cochrane & Company was established in 1960 in Spokane, Washington.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Berkley Fire & Marine A Berkley Companyberkleymarine.comHQ: Schaumburg, IL, United StatesReported employees: 5,001-10,000 | Schaumburg, IL, United States | 5,001-10,000 | Exact match | 64 contacts → |
“Berkley Fire & Marine was launched in 2013 and is a Berkley company offering preferred inland marine and related property risks and services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  American P&i Clubamerican-club.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 57 contacts → |
“Founded in New York in 1917, celebrating 106 years of service, the American Club is the only P&I mutual domiciled in the Americas.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Deans & Homerdeanshomer.comHQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 51 contacts → |
“Deans & Homer was established in 1856 and is one of the oldest continuously operating companies in California.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 50 contacts → |
“International Marine Underwriters (IMU) traces its roots to the early 1900s, and offers a full range of ocean and inland marine insurance solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Berkley Offshore Underwriting Managers A Berkley Companyberkleyoffshore.comHQ: New York, ME, United StatesReported employees: 11-50 | New York, ME, United States | 11-50 | Exact match | 47 contacts → |
“Berkley Offshore is an insurance provider specialising in Energy Upstream, Energy Liability and Marine Insurance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Ascot U.Sascotgroup.comHQ: New York, CT, United StatesReported employees: 201-500 | New York, CT, United States | 201-500 | Exact match | 47 contacts → |
“At Ascot U.S, we are offering specialty solutions at scale: we understand our markets, we strive to maintain the highest level of expertise in our fields, and we are laser-focused…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Global Marine Insurance Agencyglobalmarineinsurance.comHQ: Traverse City, MI, United StatesReported employees: 51-200 | Traverse City, MI, United States | 51-200 | Exact match | 47 contacts → |
“Global Marine Insurance Agency, a division of Specialty Program Group LLC provides specialized insurance solutions to boat, yacht and marine business owners.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 24 of 420 company matches
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Marine underwriters: dataset insights
November 6, 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
415 records in the displayed employee bands.
5 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 420 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: November 6, 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 marine underwriters?
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 marine underwriters did RevenueBase find based in the United States?
The saved snapshot records 420 matching company records, 14,810 tracked contacts and 7,816 verified emails. The public preview displays 24 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: November 6, 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
Marine underwriters by geography
- Marine underwriters based in Hamburg, Germany
- Marine underwriters based in London, United Kingdom
- Marine underwriters based in Australia
- Marine underwriters based in Belgium
- Marine underwriters based in Brazil
- Marine underwriters based in Canada
- Marine underwriters based in France
- Marine underwriters based in Germany
- Marine underwriters based in Greece
- Marine underwriters based in India
- Marine underwriters based in Italy
- Marine underwriters based in Malaysia
Browse the directory
Cite this list
RevenueBase Data Team. Top 24 marine underwriters based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/marine-underwriters/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
- Marine underwriters based in Hamburg, Germany
- Marine underwriters based in London, United Kingdom
- Marine underwriters based in Australia
- Marine underwriters based in Belgium
- Marine underwriters based in Brazil
- Marine underwriters based in Canada
Company intelligence · public preview
Top 24 marine underwriters based in the United States
RevenueBase records 420 matching company records for marine underwriters based in the United States, with 14,810 tracked contacts and 7,816 verified work emails.
This public preview shows 24 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 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 24 marine underwriters 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 | Amica Insuranceamica.com HQ: Lincoln, RI, United StatesReported employees: 1,001-5,000 | Lincoln, RI, United States | 1,001-5,000 | Exact match | 3,181 contacts → |
“When you look at Amica, you’ll see we’re different.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Philadelphia Insurance Companiesphly.com HQ: Bala Cynwyd, PA, United StatesReported employees: 1,001-5,000 | Bala Cynwyd, PA, United States | 1,001-5,000 | Exact match | 2,246 contacts → |
“Philadelphia Insurance Companies, a member of the Tokio Marine Group, designs, markets and underwrites commercial property/casualty and professional liability insurance products…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | American Modern Insurance Groupamig.com HQ: Cincinnati, OH, United StatesReported employees: 1,001-5,000 | Cincinnati, OH, United States | 1,001-5,000 | Exact match | 1,176 contacts → |
“American Modern provides insurance solutions for customers who need coverage not readily found in the general market.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Sagesuresagesure.com HQ: Jersey City, NJ, United StatesReported employees: 1,001-5,000 | Jersey City, NJ, United States | 1,001-5,000 | Exact match | 929 contacts → |
“SageSure is building the world’s leading catastrophe-risk franchise.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Core Specialty Insurance Holdings, INCcorespecialty.com HQ: Cincinnati, OH, United StatesReported employees: 1,001-5,000 | Cincinnati, OH, United States | 1,001-5,000 | Exact match | 690 contacts → |
“Core Specialty, through its subsidiary insurers, offers a diversified range of property, casualty, and marine insurance products for small to mid-sized businesses.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Bass Underwritersbassuw.com HQ: Plantation, TX, United StatesReported employees: 501-1,000 | Plantation, TX, United States | 501-1,000 | Exact match | 512 contacts → |
“As an MGA, we offer a great deal of specialty products with professional service.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Palomarplmr.com HQ: La Jolla, MN, United StatesReported employees: 501-1,000 | La Jolla, MN, United States | 501-1,000 | Exact match | 404 contacts → |
“Founded in 2014, by a team with deep experience across underwriting, analytics, reinsurance and capital markets, Palomar is an innovative specialty insurer serving residential and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Atlantic Casualty Insurance COatlanticcasualty.net HQ: Goldsboro, VA, United StatesReported employees: 201-500 | Goldsboro, VA, United States | 201-500 | Exact match | 337 contacts → |
“Atlantic Casualty Insurance Company (Atlantic Casualty) was formed by Strickland Insurance Group (SIG) in 1983 to underwrite a substantial book of non-standard personal auto.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | The American Equity Underwriters, INCamequity.com HQ: Mobile, AL, United StatesReported employees: 51-200 | Mobile, AL, United States | 51-200 | Exact match | 175 contacts → |
“The American Equity Underwriters, Inc.(AEU) delivers specialized coverage and risk management solutions to waterfront employers across the United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Phoenix International Holdings, INCphnx-international.com HQ: Largo, LA, United StatesReported employees: 201-500 | Largo, LA, United States | 201-500 | Exact match | 167 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 | Turn Servicesturnservices.com HQ: New Orleans, LA, United StatesReported employees: 201-500 | New Orleans, LA, United States | 201-500 | Exact match | 137 contacts → |
“Turn Services is one of the largest independent fleeting and shifting companies in the United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Signal Mutualsignalmutual.com HQ: South Norwalk, CT, United StatesReported employees: 51-200 | South Norwalk, CT, United States | 51-200 | Exact match | 127 contacts → |
“Signal Mutual Indemnity Association Ltd was established in 1986 to meet the demand for reasonable and stable longshore workers’ compensation insurance rates.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | FOA & SON Insurancefoason.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 100 contacts → |
“Founded in 1861, Foa & Son are international insurance brokers based in New York City.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Wells Insurancewellsins.com HQ: Wilmington, NC, United StatesReported employees: 51-200 | Wilmington, NC, United States | 51-200 | Exact match | 92 contacts → |
“For more than a century, Wells Insurance has combined the strength of a nationally competitive brokerage with the personal commitment of a family business.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Newcoastnewcoast.com HQ: Clearwater, FL, United StatesReported employees: 51-200 | Clearwater, FL, United States | 51-200 | Exact match | 86 contacts → |
“Our professional team of financing and insurance specialists have years of experience and are available to help answer your questions throughout the process.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Baker Marine Solutions, LLCbakermarinesolutions.com HQ: Covington, LA, United StatesReported employees: 11-50 | Covington, LA, United States | 11-50 | Exact match | 81 contacts → |
“Baker Marine Solutions is a leading provider of marine assurance, engineering and consulting services, performing DP assurance, OCIMF- OVID inspections, IMCA CMID inspections…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Cochrane & Companymarketing.cochraneco.com HQ: Spokane, WA, United StatesReported employees: 51-200 | Spokane, WA, United States | 51-200 | Exact match | 76 contacts → |
“Cochrane & Company was established in 1960 in Spokane, Washington.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Berkley Fire & Marine A Berkley Companyberkleymarine.com HQ: Schaumburg, IL, United StatesReported employees: 5,001-10,000 | Schaumburg, IL, United States | 5,001-10,000 | Exact match | 64 contacts → |
“Berkley Fire & Marine was launched in 2013 and is a Berkley company offering preferred inland marine and related property risks and services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | American P&i Clubamerican-club.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 57 contacts → |
“Founded in New York in 1917, celebrating 106 years of service, the American Club is the only P&I mutual domiciled in the Americas.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Deans & Homerdeanshomer.com HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 51 contacts → |
“Deans & Homer was established in 1856 and is one of the oldest continuously operating companies in California.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 50 contacts → |
“International Marine Underwriters (IMU) traces its roots to the early 1900s, and offers a full range of ocean and inland marine insurance solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Berkley Offshore Underwriting Managers A Berkley Companyberkleyoffshore.com HQ: New York, ME, United StatesReported employees: 11-50 | New York, ME, United States | 11-50 | Exact match | 47 contacts → |
“Berkley Offshore is an insurance provider specialising in Energy Upstream, Energy Liability and Marine Insurance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Ascot U.Sascotgroup.com HQ: New York, CT, United StatesReported employees: 201-500 | New York, CT, United States | 201-500 | Exact match | 47 contacts → |
“At Ascot U.S, we are offering specialty solutions at scale: we understand our markets, we strive to maintain the highest level of expertise in our fields, and we are laser-focused…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Global Marine Insurance Agencyglobalmarineinsurance.com HQ: Traverse City, MI, United StatesReported employees: 51-200 | Traverse City, MI, United States | 51-200 | Exact match | 47 contacts → |
“Global Marine Insurance Agency, a division of Specialty Program Group LLC provides specialized insurance solutions to boat, yacht and marine business owners.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 24 of 420 company matches
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Marine underwriters: dataset insights
November 6, 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
415 records in the displayed employee bands.
5 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 420 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: November 6, 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 marine underwriters?
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 marine underwriters did RevenueBase find based in the United States?
The saved snapshot records 420 matching company records, 14,810 tracked contacts and 7,816 verified emails. The public preview displays 24 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: November 6, 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
Marine underwriters by geography
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Cite this list
RevenueBase Data Team. Top 24 marine underwriters based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/marine-underwriters/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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