Company lists · Data refreshed October 2026
Top 25 Offshore energy underwriters based in the United States
RevenueBase identified 55 company matches for offshore energy underwriters associated with the United States as of October 2026 and tracks 773 professional contacts across them, including 462 with verified work emails. Houston is the largest hub.
This list covers company matches for offshore energy 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 October 19, 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 offshore energy underwriters based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 107 contacts → | ||||
Exact match “TSIB was founded in 2005 as a subsidiary of Hochtief USA.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 2 | 93 contacts → | ||||
Exact match “Berkley Oil & Gas, a Berkley Company, is an energy insurance provider that is committed to providing innovative insurance products and services to upstream oil and gas customers.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 3 | 83 contacts → | ||||
Exact match “Making risk frictionless.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 4 | 77 contacts → | ||||
Exact match “With 35 years of experience, Palms Insurance continues to develop innovative, customized programs to help businesses mitigate challenging risks, while protecting some of the…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 5 | 45 contacts → | ||||
Exact match “Berkley Offshore is an insurance provider specialising in Energy Upstream, Energy Liability and Marine Insurance.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 6 | 41 contacts → | ||||
Exact match “Our history dates back to the early 1990’s, when Maritime General Agency and Marine MGA were founded.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 7 | 40 contacts → | ||||
Exact match “MHG Insurance is a leading insurance brokerage providing insurance advice and solutions for seafarers, businesses and groups and individuals around the world.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 8 | 24 contacts → | ||||
Exact match “Trident Marine Managers is a leading specialty marine and offshore energy managing general underwriter (MGU) that delivers capacity and solid protection.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 9 | 23 contacts → | ||||
Exact match “PERse (Power.Energy.Risk; securing the environment) is a Managing General Underwriter specializing in property and casualty insurance products for energy and power production…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 10 | 17 contacts → | ||||
Exact match “Since 1979, Global Special Risks (GSR) has been underwriting insurance coverages for the Upstream Energy and Marine industries.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 11 | 13 contacts → | ||||
Exact match “Renewable Guard is the premier insurance brokerage serving the renewable energy industry.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 12 | 11 contacts → | ||||
Exact match “Prime Specialty’s Underwriting team can provide you with competitive quotes on annual policies for Trade Contractors and General Contractors and on Designated Project policies for…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 13 | 9 contacts → | ||||
Exact match “Geo SubSea is a unique small business serving the marine offshore and survey industries with expertise in marine geology and geophysics as well as strong familiarity with all…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 14 | 7 contacts → | ||||
Exact match “The best and brightest minds in energy underwriting working together on your behalf, that’s the energy of all.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 15 | 7 contacts → | ||||
Exact match “Capacity Marine Corporation is an insurance company based out of 1 International Blvd, Mahwah, New Jersey, United States.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 16 | 6 contacts → | ||||
Exact match “Transpac Managers is the innovator and leader of Downhole Tool Coverage for fishing, directional drilling tools, drillpipe, wireline logging, and pipelines in the oil & gas…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 17 | 6 contacts → | ||||
Exact match “GCube is the leading provider of insurance services for renewable energy projects in wind, solar, wave, hydro and tidal around the globe.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 18 | 6 contacts → | ||||
Exact match “At Poirrier Group, “Team Poirrier” provides our clients with the best possible coverage, pricing, and service available globally, as a valued partner in lowering total cost of…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 19 | 5 contacts → | ||||
Exact match “We are specialty marine insurance brokers serving the United States, with an emphasis on the Southeastern U.S, Pacific Northwest and Alaska.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 20 | 5 contacts → | ||||
Exact match “Our Founder is a former Merchant Mariner and we've stayed true to our marine roots.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 21 | 5 contacts → | ||||
Exact match “Triad Oilfield Underwriters, LLC is an underwriting agency specializing in upstream oil and gas exploration and development risks.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 22 | 4 contacts → | ||||
Exact match “OSL Insurance Services, Inc.(OISI) is an excess and surplus lines producer, based in Houston, Texas.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 23 | 4 contacts → | ||||
Exact match “Safe Marine Assurance (SMA) is an employee-owned, full-service Energy Risk Management & Maritime Engineering Consultancy firm registered in Houston, Texas and Rio de Janeiro, BR.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 24 | 3 contacts → | ||||
Exact match “Anchor Marine Underwriters is a leading marine insurance broker.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 25 | 2 contacts → | ||||
Exact match “EIURS was launched in 2015 and core products include primary and excess casualty for the Energy sector focusing on contractors, consultants, and manufacturers.” Recorded in the RevenueBase company graph · Oct 19, 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 “offshore energy 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 25 of 55 offshore energy underwriters based in the United States
See the full list, filter by size, metro and specialty, and access 462 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Offshore energy underwriters based in the United States at a glance
As of Oct 19, 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 55 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 “offshore energy 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 462 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 October 19, 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 “offshore energy underwriters”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many offshore energy underwriters are there based in the United States?
RevenueBase identified 55 company matches for offshore energy underwriters associated with the United States as of October 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?
TSIB tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most offshore energy underwriters?
Houston leads with 10 company records, followed by Fort Lauderdale (2) and New Orleans (2).
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 462 professional contacts with verified work emails tracked across these 55 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 October 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 55 offshore energy underwriters based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Offshore energy underwriters 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
- Offshore energy underwriters based in London, United Kingdom
- Offshore energy underwriters based in the United Kingdom
- 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
Company intelligence · public preview
Top 25 offshore energy 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 55 matching company records for offshore energy underwriters based in the United States, with 773 tracked contacts and 462 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: October 19, 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 offshore energy 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 | TSIBtsibinc.com HQ: Saddle Brook, NJ, United StatesReported employees: 51-200 | Saddle Brook, NJ, United States | 51-200 | Exact match | 107 contacts → |
“TSIB was founded in 2005 as a subsidiary of Hochtief USA.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Berkley OIL & GAS A Berkley Companyberkleyoil-gas.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 93 contacts → |
“Berkley Oil & Gas, a Berkley Company, is an energy insurance provider that is committed to providing innovative insurance products and services to upstream oil and gas customers.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Shepherdshepherdinsurance.com HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 83 contacts → |
“Making risk frictionless.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Palms Insurancepalms-insurance.com HQ: Juno Beach, FL, United StatesReported employees: 51-200 | Juno Beach, FL, United States | 51-200 | Exact match | 77 contacts → |
“With 35 years of experience, Palms Insurance continues to develop innovative, customized programs to help businesses mitigate challenging risks, while protecting some of the…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Berkley Offshore Underwriting Managers A Berkley Companyberkleyoffshore.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 45 contacts → |
“Berkley Offshore is an insurance provider specialising in Energy Upstream, Energy Liability and Marine Insurance.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  One80 Marineone80intermediaries.comHQ: Westbrook, CT, United StatesReported employees: 51-200 | Westbrook, CT, United States | 51-200 | Exact match | 41 contacts → |
“Our history dates back to the early 1990’s, when Maritime General Agency and Marine MGA were founded.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  MHG Insurancemhginsurance.comHQ: Fort Lauderdale, FL, United StatesReported employees: 11-50 | Fort Lauderdale, FL, United States | 11-50 | Exact match | 40 contacts → |
“MHG Insurance is a leading insurance brokerage providing insurance advice and solutions for seafarers, businesses and groups and individuals around the world.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Trident Marine Managerstridentmm.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 24 contacts → |
“Trident Marine Managers is a leading specialty marine and offshore energy managing general underwriter (MGU) that delivers capacity and solid protection.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Perse Power.Energy.Riskpowerenergyrisk.com HQ: Newport Beach, CA, United StatesReported employees: 11-50 | Newport Beach, CA, United States | 11-50 | Exact match | 23 contacts → |
“PERse (Power.Energy.Risk; securing the environment) is a Managing General Underwriter specializing in property and casualty insurance products for energy and power production…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Global Special Risksgsrum.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 17 contacts → |
“Since 1979, Global Special Risks (GSR) has been underwriting insurance coverages for the Upstream Energy and Marine industries.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Renewableguardrenewableguard.comHQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 13 contacts → |
“Renewable Guard is the premier insurance brokerage serving the renewable energy industry.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Prime Specialtyprimespecialty.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 11 contacts → |
“Prime Specialty’s Underwriting team can provide you with competitive quotes on annual policies for Trade Contractors and General Contractors and on Designated Project policies for…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | GEO Subsea LLCgeosubseaconsulting.com HQ: Middletown, CT, United StatesReported employees: 1-10 | Middletown, CT, United States | 1-10 | Exact match | 9 contacts → |
“Geo SubSea is a unique small business serving the marine offshore and survey industries with expertise in marine geology and geophysics as well as strong familiarity with all…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | JH Bladesjhblades.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 7 contacts → |
“The best and brightest minds in energy underwriting working together on your behalf, that’s the energy of all.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Capacity Marine Corporationcapacitymarine.com HQ: Mahwah, NJ, United StatesReported employees: 1-10 | Mahwah, NJ, United States | 1-10 | Exact match | 7 contacts → |
“Capacity Marine Corporation is an insurance company based out of 1 International Blvd, Mahwah, New Jersey, United States.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Transpac Managers, INCtranspacmgrs.comHQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 6 contacts → |
“Transpac Managers is the innovator and leader of Downhole Tool Coverage for fishing, directional drilling tools, drillpipe, wireline logging, and pipelines in the oil & gas…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Gcube Insurancegcube-insurance.com HQ: Newport Beach, CA, United StatesReported employees: 51-200 | Newport Beach, CA, United States | 51-200 | Exact match | 6 contacts → |
“GCube is the leading provider of insurance services for renewable energy projects in wind, solar, wave, hydro and tidal around the globe.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Poirrier Group, LLCpoirriergroup.comHQ: Lafayette, LA, United StatesReported employees: 1-10 | Lafayette, LA, United States | 1-10 | Exact match | 6 contacts → |
“At Poirrier Group, “Team Poirrier” provides our clients with the best possible coverage, pricing, and service available globally, as a valued partner in lowering total cost of…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Lightship Maritime, INClightshipmaritime.com HQ: Bothell, WA, United StatesReported employees: 1-10 | Bothell, WA, United States | 1-10 | Exact match | 5 contacts → |
“We are specialty marine insurance brokers serving the United States, with an emphasis on the Southeastern U.S, Pacific Northwest and Alaska.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  American Marine Insurance SVCamericanmarineinsurance.comHQ: Ventura, CA, United StatesReported employees: 1-10 | Ventura, CA, United States | 1-10 | Exact match | 5 contacts → |
“Our Founder is a former Merchant Mariner and we've stayed true to our marine roots.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Triad Oilfield Underwriters, LLCtriadoilfield.com HQ: Sugar Land, TX, United StatesReported employees: 1-10 | Sugar Land, TX, United States | 1-10 | Exact match | 5 contacts → |
“Triad Oilfield Underwriters, LLC is an underwriting agency specializing in upstream oil and gas exploration and development risks.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | OSL Insurance Services, INCoslinsurance.com HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 4 contacts → |
“OSL Insurance Services, Inc.(OISI) is an excess and surplus lines producer, based in Houston, Texas.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Safe Marine Assurancesafemarineassurance.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 4 contacts → |
“Safe Marine Assurance (SMA) is an employee-owned, full-service Energy Risk Management & Maritime Engineering Consultancy firm registered in Houston, Texas and Rio de Janeiro, BR.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Anchor Marine Underwriters, INCanchormarineinsurance.comHQ: Mercer Island, WA, United StatesReported employees: 1-10 | Mercer Island, WA, United States | 1-10 | Exact match | 3 contacts → |
“Anchor Marine Underwriters is a leading marine insurance broker.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Eiurs, A Dual Companyeiurs.com HQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 2 contacts → |
“EIURS was launched in 2015 and core products include primary and excess casualty for the Energy sector focusing on contractors, consultants, and manufacturers.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 55 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Offshore energy underwriters: dataset insights
October 19, 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
55 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 55 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: October 19, 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 offshore energy 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 offshore energy underwriters did RevenueBase find based in the United States?
The saved snapshot records 55 matching company records, 773 tracked contacts and 462 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: October 19, 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
Offshore energy underwriters by geography
Cite this list
RevenueBase Data Team. Top 25 offshore energy underwriters based in the United States. Snapshot: October 19, 2026. https://revenuebase.ai/companies/offshore-energy-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
- Offshore energy underwriters based in London, United Kingdom
- Offshore energy underwriters based in the United Kingdom
- 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
Company intelligence · public preview
Top 25 offshore energy underwriters based in the United States
RevenueBase records 55 matching company records for offshore energy underwriters based in the United States, with 773 tracked contacts and 462 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: October 19, 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 offshore energy 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 | TSIBtsibinc.com HQ: Saddle Brook, NJ, United StatesReported employees: 51-200 | Saddle Brook, NJ, United States | 51-200 | Exact match | 107 contacts → |
“TSIB was founded in 2005 as a subsidiary of Hochtief USA.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Berkley OIL & GAS A Berkley Companyberkleyoil-gas.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 93 contacts → |
“Berkley Oil & Gas, a Berkley Company, is an energy insurance provider that is committed to providing innovative insurance products and services to upstream oil and gas customers.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Shepherdshepherdinsurance.com HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 83 contacts → |
“Making risk frictionless.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Palms Insurancepalms-insurance.com HQ: Juno Beach, FL, United StatesReported employees: 51-200 | Juno Beach, FL, United States | 51-200 | Exact match | 77 contacts → |
“With 35 years of experience, Palms Insurance continues to develop innovative, customized programs to help businesses mitigate challenging risks, while protecting some of the…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Berkley Offshore Underwriting Managers A Berkley Companyberkleyoffshore.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 45 contacts → |
“Berkley Offshore is an insurance provider specialising in Energy Upstream, Energy Liability and Marine Insurance.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | One80 Marineone80intermediaries.com HQ: Westbrook, CT, United StatesReported employees: 51-200 | Westbrook, CT, United States | 51-200 | Exact match | 41 contacts → |
“Our history dates back to the early 1990’s, when Maritime General Agency and Marine MGA were founded.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | MHG Insurancemhginsurance.com HQ: Fort Lauderdale, FL, United StatesReported employees: 11-50 | Fort Lauderdale, FL, United States | 11-50 | Exact match | 40 contacts → |
“MHG Insurance is a leading insurance brokerage providing insurance advice and solutions for seafarers, businesses and groups and individuals around the world.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Trident Marine Managerstridentmm.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 24 contacts → |
“Trident Marine Managers is a leading specialty marine and offshore energy managing general underwriter (MGU) that delivers capacity and solid protection.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Perse Power.Energy.Riskpowerenergyrisk.com HQ: Newport Beach, CA, United StatesReported employees: 11-50 | Newport Beach, CA, United States | 11-50 | Exact match | 23 contacts → |
“PERse (Power.Energy.Risk; securing the environment) is a Managing General Underwriter specializing in property and casualty insurance products for energy and power production…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Global Special Risksgsrum.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 17 contacts → |
“Since 1979, Global Special Risks (GSR) has been underwriting insurance coverages for the Upstream Energy and Marine industries.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Renewableguardrenewableguard.com HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 13 contacts → |
“Renewable Guard is the premier insurance brokerage serving the renewable energy industry.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Prime Specialtyprimespecialty.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 11 contacts → |
“Prime Specialty’s Underwriting team can provide you with competitive quotes on annual policies for Trade Contractors and General Contractors and on Designated Project policies for…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | GEO Subsea LLCgeosubseaconsulting.com HQ: Middletown, CT, United StatesReported employees: 1-10 | Middletown, CT, United States | 1-10 | Exact match | 9 contacts → |
“Geo SubSea is a unique small business serving the marine offshore and survey industries with expertise in marine geology and geophysics as well as strong familiarity with all…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | JH Bladesjhblades.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 7 contacts → |
“The best and brightest minds in energy underwriting working together on your behalf, that’s the energy of all.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Capacity Marine Corporationcapacitymarine.com HQ: Mahwah, NJ, United StatesReported employees: 1-10 | Mahwah, NJ, United States | 1-10 | Exact match | 7 contacts → |
“Capacity Marine Corporation is an insurance company based out of 1 International Blvd, Mahwah, New Jersey, United States.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Transpac Managers, INCtranspacmgrs.com HQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 6 contacts → |
“Transpac Managers is the innovator and leader of Downhole Tool Coverage for fishing, directional drilling tools, drillpipe, wireline logging, and pipelines in the oil & gas…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Gcube Insurancegcube-insurance.com HQ: Newport Beach, CA, United StatesReported employees: 51-200 | Newport Beach, CA, United States | 51-200 | Exact match | 6 contacts → |
“GCube is the leading provider of insurance services for renewable energy projects in wind, solar, wave, hydro and tidal around the globe.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Poirrier Group, LLCpoirriergroup.com HQ: Lafayette, LA, United StatesReported employees: 1-10 | Lafayette, LA, United States | 1-10 | Exact match | 6 contacts → |
“At Poirrier Group, “Team Poirrier” provides our clients with the best possible coverage, pricing, and service available globally, as a valued partner in lowering total cost of…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Lightship Maritime, INClightshipmaritime.com HQ: Bothell, WA, United StatesReported employees: 1-10 | Bothell, WA, United States | 1-10 | Exact match | 5 contacts → |
“We are specialty marine insurance brokers serving the United States, with an emphasis on the Southeastern U.S, Pacific Northwest and Alaska.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | American Marine Insurance SVCamericanmarineinsurance.com HQ: Ventura, CA, United StatesReported employees: 1-10 | Ventura, CA, United States | 1-10 | Exact match | 5 contacts → |
“Our Founder is a former Merchant Mariner and we've stayed true to our marine roots.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Triad Oilfield Underwriters, LLCtriadoilfield.com HQ: Sugar Land, TX, United StatesReported employees: 1-10 | Sugar Land, TX, United States | 1-10 | Exact match | 5 contacts → |
“Triad Oilfield Underwriters, LLC is an underwriting agency specializing in upstream oil and gas exploration and development risks.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | OSL Insurance Services, INCoslinsurance.com HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 4 contacts → |
“OSL Insurance Services, Inc.(OISI) is an excess and surplus lines producer, based in Houston, Texas.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Safe Marine Assurancesafemarineassurance.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 4 contacts → |
“Safe Marine Assurance (SMA) is an employee-owned, full-service Energy Risk Management & Maritime Engineering Consultancy firm registered in Houston, Texas and Rio de Janeiro, BR.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Anchor Marine Underwriters, INCanchormarineinsurance.com HQ: Mercer Island, WA, United StatesReported employees: 1-10 | Mercer Island, WA, United States | 1-10 | Exact match | 3 contacts → |
“Anchor Marine Underwriters is a leading marine insurance broker.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Eiurs, A Dual Companyeiurs.com HQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 2 contacts → |
“EIURS was launched in 2015 and core products include primary and excess casualty for the Energy sector focusing on contractors, consultants, and manufacturers.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 55 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Offshore energy underwriters: dataset insights
October 19, 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
55 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 55 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: October 19, 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 offshore energy 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 offshore energy underwriters did RevenueBase find based in the United States?
The saved snapshot records 55 matching company records, 773 tracked contacts and 462 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: October 19, 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
Offshore energy underwriters by geography
Cite this list
RevenueBase Data Team. Top 25 offshore energy underwriters based in the United States. Snapshot: October 19, 2026. https://revenuebase.ai/companies/offshore-energy-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
- Offshore energy underwriters based in London, United Kingdom
- Offshore energy underwriters based in the United Kingdom
- 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