Company lists · Data refreshed November 2026
Top 25 Underwriting firms worldwide
RevenueBase identified 820 company matches for underwriting firms worldwide as of November 2026 and tracks 24,036 professional contacts across them, including 10,321 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for underwriting firms worldwide, 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. Country and city lists for underwriting firms follow the table.
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 underwriting firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,352 contacts → | ||||
Exact match “We aspire to be the very best insurance company at underwriting insurance products for our customers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 1,192 contacts → | ||||
Exact match “Ryan Specialty (NYSE: RYAN) is an international specialty insurance firm that provides distribution, underwriting, product development, administration and risk management services…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 1,152 contacts → | ||||
Exact match “Underwriting solutions at Verisk is a leading provider of advanced tools and analytics for the property/casualty and life insurance industries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 633 contacts → | ||||
Exact match “Accelerant is a data-driven risk exchange built for specialty insurance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 466 contacts → | ||||
Exact match “Argo Group is a U.S-focused underwriter of specialty insurance products in the property and casualty market.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 459 contacts → | ||||
Exact match “Bracht Deckers & Mackelbert NV (BDM), opgericht in 1934, is één van de meest gevestigde en gerespecteerde gevolmachtigde onderschrijvers in de Benelux-regio.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 456 contacts → | ||||
Exact match “RSUI is a leading underwriter of wholesale specialty insurance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 432 contacts → | ||||
Exact match “On September 1, 2020 Ryan Specialty Group, LLC (RSG) and All Risks, Ltd.(All Risks) merged the two firms into Ryan Specialty Group.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 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 | |||||
| 10 | 370 contacts → | ||||
Exact match “CIB is a proudly South African underwriting manager that deals through a network of short term insurance brokers countrywide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 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 | |||||
| 12 | 266 contacts → | ||||
Exact match “As a division of Ryan Specialty Underwriting Managers, US Assure distributes, underwrites and services construction and property insurance products across the U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 262 contacts → | ||||
Exact match “XPT brings together underwriting and wholesale brokerage firms across many specialty lines through acquisitions and new product development.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 259 contacts → | ||||
Exact match “Revau "REVolution Advanced Underwriting, a name that lives up to our mission to be the MGA-Led revolution of commercial insurance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 245 contacts → | ||||
Exact match “InspereX pioneered the delivery of innovative strategies to the retail market and has since become an industry leader in underwriting, marketing, and distributing structured…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 240 contacts → | ||||
Exact match “DUAL is a different kind of underwriting business.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 225 contacts → | ||||
Exact match “XS Brokers is an independent wholesale brokerage facility that has been creatively solving hard-to-place insurance risks since 1978.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 205 contacts → | ||||
Exact match “GenStar Insurance Services, LLC is a premier provider of excess, surplus, and specialty property and casualty insurance written on General Star Indemnity Company (non-admitted)…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 201 contacts → | ||||
Exact match “Euclid Transactional is a leading global managing general agent that specializes in transactional risk insurance, including representations and warranties insurance and tax…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 194 contacts → | ||||
Exact match “Bamboo Insurance is a technology-enabled, underwriting-first managing general underwriter (MGU) focused on homeowners’ coverage for a new era of insurance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 194 contacts → | ||||
Exact match “Veracity Insurance Solutions is an international insurance brokerage firm specializing in the placement of Programs, General Liability, and Product Liability Insurance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 192 contacts → | ||||
Exact match “Victor is a leading global managing general underwriter.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 190 contacts → | ||||
Exact match “Argenta Holdings Ltd, a wholly owned subsidiary of Hannover Re, is an underwriting and insurance services group operating in the Lloyd’s Market.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 190 contacts → | ||||
Exact match “DUAL is driven by a mission to be the MGA of choice for brokers, clients and carriers, through the provision of deep underwriting expertise and global distribution.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 186 contacts → | ||||
Exact match “Sovereign Trust Insurance Plc commenced business in January 1995 with an authorized share capital of N30 million and a fully paid-up capital of N20 million following the…” 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 “underwriting firms”. 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 820 underwriting firms worldwide
See the full list, filter by size, metro and specialty, and access 10,321 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Underwriting firms worldwide at a glance
As of Nov 6, 2026Companies by employee count
Email recency is reported on each country list linked below.
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.
- Coverage
- Every country. Country and city lists for underwriting firms are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “underwriting firms” 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. 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 10,321 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.
Underwriting firms by location
6 lists · largest firstEvery Underwriting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Underwriting firms based in the United States252
- Underwriting firms based in the United Kingdom135
- Underwriting firms based in Australia49
- Underwriting firms based in South Africa49
- Underwriting firms based in France30
Cities
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 “underwriting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many underwriting firms are there worldwide?
RevenueBase identified 820 company matches for underwriting firms worldwide 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?
USLI tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most underwriting firms?
The United States leads with 252 companies, followed by the United Kingdom (135) and Australia (49). Every underwriting firms list by country and city is linked on this page.
Which city has the most underwriting firms?
London leads with 70 company records, followed by Johannesburg (19) and New York (16).
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 10,321 professional contacts with verified work emails tracked across these 820 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 820 underwriting firms worldwide. Start with a free account, no credit card.
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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
Company intelligence · public preview
Top 25 underwriting firms worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 820 matching company records for underwriting firms worldwide, with 24,036 tracked contacts and 10,321 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: 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 25 underwriting firms worldwide
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 |  USLIusli.comHQ: Wayne, CO, United StatesReported employees: 1,001-5,000 | Wayne, CO, United States | 1,001-5,000 | Exact match | 1,352 contacts → |
“We aspire to be the very best insurance company at underwriting insurance products for our customers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Ryan Specialtyryanspecialty.comHQ: Chicago, IL, United StatesReported employees: 5,001-10,000 | Chicago, IL, United States | 5,001-10,000 | Exact match | 1,192 contacts → |
“Ryan Specialty (NYSE: RYAN) is an international specialty insurance firm that provides distribution, underwriting, product development, administration and risk management services…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  ISOverisk.comHQ: Jersey City, NJ, United StatesReported employees: 5,001-10,000 | Jersey City, NJ, United States | 5,001-10,000 | Exact match | 1,152 contacts → |
“Underwriting solutions at Verisk is a leading provider of advanced tools and analytics for the property/casualty and life insurance industries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Accelerantaccelerant.aiHQ: Atlanta, United StatesReported employees: 501-1,000 | Atlanta, United States | 501-1,000 | Exact match | 633 contacts → |
“Accelerant is a data-driven risk exchange built for specialty insurance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Argo Groupargogroup.com HQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 466 contacts → |
“Argo Group is a U.S-focused underwriter of specialty insurance products in the property and casualty market.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  BDMbdmantwerp.beHQ: Antwerp, BelgiumReported employees: 51-200 | Antwerp, Belgium | 51-200 | Exact match | 459 contacts → |
“Bracht Deckers & Mackelbert NV (BDM), opgericht in 1934, is één van de meest gevestigde en gerespecteerde gevolmachtigde onderschrijvers in de Benelux-regio.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Rsui Group, INCrsui.comHQ: Atlanta, GA, United StatesReported employees: 201-500 | Atlanta, GA, United States | 201-500 | Exact match | 456 contacts → |
“RSUI is a leading underwriter of wholesale specialty insurance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  ALL Risks, LTDallrisks.comHQ: Hunt Valley, MD, United StatesReported employees: 501-1,000 | Hunt Valley, MD, United States | 501-1,000 | Exact match | 432 contacts → |
“On September 1, 2020 Ryan Specialty Group, LLC (RSG) and All Risks, Ltd.(All Risks) merged the two firms into Ryan Specialty Group.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  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. | |||||
| 10 |  CIBcib.co.zaHQ: Johannesburg, South AfricaReported employees: 201-500 | Johannesburg, South Africa | 201-500 | Exact match | 370 contacts → |
“CIB is a proudly South African underwriting manager that deals through a network of short term insurance brokers countrywide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  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. | |||||
| 12 |  US Assureusassure.comHQ: Jacksonville, FL, United StatesReported employees: 51-200 | Jacksonville, FL, United States | 51-200 | Exact match | 266 contacts → |
“As a division of Ryan Specialty Underwriting Managers, US Assure distributes, underwrites and services construction and property insurance products across the U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  XPT Specialtyxptspecialty.comHQ: United StatesReported employees: 201-500 | United States | 201-500 | Exact match | 262 contacts → |
“XPT brings together underwriting and wholesale brokerage firms across many specialty lines through acquisitions and new product development.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  REVAUrevau.comHQ: Terrebonne, QC, CanadaReported employees: 201-500 | Terrebonne, QC, Canada | 201-500 | Exact match | 259 contacts → |
“Revau "REVolution Advanced Underwriting, a name that lives up to our mission to be the MGA-Led revolution of commercial insurance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Insperexinsperex.comHQ: Delray Beach, FL, United StatesReported employees: 51-200 | Delray Beach, FL, United States | 51-200 | Exact match | 245 contacts → |
“InspereX pioneered the delivery of innovative strategies to the retail market and has since become an industry leader in underwriting, marketing, and distributing structured…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Dual Groupdualgroup.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 240 contacts → |
“DUAL is a different kind of underwriting business.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  XS Brokersxsbrokers.comHQ: Quincy, CT, United StatesReported employees: 201-500 | Quincy, CT, United States | 201-500 | Exact match | 225 contacts → |
“XS Brokers is an independent wholesale brokerage facility that has been creatively solving hard-to-place insurance risks since 1978.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Genstar Insurance Services, LLCgeneralstar.comHQ: Stamford, IL, United StatesReported employees: 51-200 | Stamford, IL, United States | 51-200 | Exact match | 205 contacts → |
“GenStar Insurance Services, LLC is a premier provider of excess, surplus, and specialty property and casualty insurance written on General Star Indemnity Company (non-admitted)…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Euclid Transactionaleuclidtransactional.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 201 contacts → |
“Euclid Transactional is a leading global managing general agent that specializes in transactional risk insurance, including representations and warranties insurance and tax…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Bamboo Insurancebambooinsurance.comHQ: Midvale, UT, United StatesReported employees: 201-500 | Midvale, UT, United States | 201-500 | Exact match | 194 contacts → |
“Bamboo Insurance is a technology-enabled, underwriting-first managing general underwriter (MGU) focused on homeowners’ coverage for a new era of insurance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Veracity Insurance Solutions, LLCveracityinsurance.comHQ: Pleasant Grove, UT, United StatesReported employees: 51-200 | Pleasant Grove, UT, United States | 51-200 | Exact match | 194 contacts → |
“Veracity Insurance Solutions is an international insurance brokerage firm specializing in the placement of Programs, General Liability, and Product Liability Insurance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Victorvictorinsurance.comHQ: Bethesda, MD, United StatesReported employees: 201-500 | Bethesda, MD, United States | 201-500 | Exact match | 192 contacts → |
“Victor is a leading global managing general underwriter.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Argenta Groupargentagroup.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 190 contacts → |
“Argenta Holdings Ltd, a wholly owned subsidiary of Hannover Re, is an underwriting and insurance services group operating in the Lloyd’s Market.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Dual UKdualinsurance.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 190 contacts → |
“DUAL is driven by a mission to be the MGA of choice for brokers, clients and carriers, through the provision of deep underwriting expertise and global distribution.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Sovereign Trust Insurance PLCstiplc.comHQ: Lagos, NigeriaReported employees: 201-500 | Lagos, Nigeria | 201-500 | Exact match | 186 contacts → |
“Sovereign Trust Insurance Plc commenced business in January 1995 with an authorized share capital of N30 million and a fully paid-up capital of N20 million following the…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 820 company matches
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Underwriting firms: 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
816 records in the displayed employee bands.
4 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 820 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 ↗
Underwriting firms by location
6 lists · largest firstEvery Underwriting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Underwriting firms based in the United States252
- Underwriting firms based in the United Kingdom135
- Underwriting firms based in Australia49
- Underwriting firms based in South Africa49
- Underwriting firms based in France30
Cities
Questions about this company list
What does Exact match mean for underwriting firms?
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 underwriting firms did RevenueBase find worldwide?
The saved snapshot records 820 matching company records, 24,036 tracked contacts and 10,321 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: 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
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 underwriting firms worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/underwriting-firms.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 underwriting firms worldwide
RevenueBase records 820 matching company records for underwriting firms worldwide, with 24,036 tracked contacts and 10,321 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: 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 25 underwriting firms worldwide
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 | USLIusli.com HQ: Wayne, CO, United StatesReported employees: 1,001-5,000 | Wayne, CO, United States | 1,001-5,000 | Exact match | 1,352 contacts → |
“We aspire to be the very best insurance company at underwriting insurance products for our customers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Ryan Specialtyryanspecialty.com HQ: Chicago, IL, United StatesReported employees: 5,001-10,000 | Chicago, IL, United States | 5,001-10,000 | Exact match | 1,192 contacts → |
“Ryan Specialty (NYSE: RYAN) is an international specialty insurance firm that provides distribution, underwriting, product development, administration and risk management services…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | ISOverisk.com HQ: Jersey City, NJ, United StatesReported employees: 5,001-10,000 | Jersey City, NJ, United States | 5,001-10,000 | Exact match | 1,152 contacts → |
“Underwriting solutions at Verisk is a leading provider of advanced tools and analytics for the property/casualty and life insurance industries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Accelerantaccelerant.ai HQ: Atlanta, United StatesReported employees: 501-1,000 | Atlanta, United States | 501-1,000 | Exact match | 633 contacts → |
“Accelerant is a data-driven risk exchange built for specialty insurance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Argo Groupargogroup.com HQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 466 contacts → |
“Argo Group is a U.S-focused underwriter of specialty insurance products in the property and casualty market.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | BDMbdmantwerp.be HQ: Antwerp, BelgiumReported employees: 51-200 | Antwerp, Belgium | 51-200 | Exact match | 459 contacts → |
“Bracht Deckers & Mackelbert NV (BDM), opgericht in 1934, is één van de meest gevestigde en gerespecteerde gevolmachtigde onderschrijvers in de Benelux-regio.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Rsui Group, INCrsui.com HQ: Atlanta, GA, United StatesReported employees: 201-500 | Atlanta, GA, United States | 201-500 | Exact match | 456 contacts → |
“RSUI is a leading underwriter of wholesale specialty insurance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | ALL Risks, LTDallrisks.com HQ: Hunt Valley, MD, United StatesReported employees: 501-1,000 | Hunt Valley, MD, United States | 501-1,000 | Exact match | 432 contacts → |
“On September 1, 2020 Ryan Specialty Group, LLC (RSG) and All Risks, Ltd.(All Risks) merged the two firms into Ryan Specialty Group.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | 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. | |||||
| 10 | CIBcib.co.za HQ: Johannesburg, South AfricaReported employees: 201-500 | Johannesburg, South Africa | 201-500 | Exact match | 370 contacts → |
“CIB is a proudly South African underwriting manager that deals through a network of short term insurance brokers countrywide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 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. | |||||
| 12 | US Assureusassure.com HQ: Jacksonville, FL, United StatesReported employees: 51-200 | Jacksonville, FL, United States | 51-200 | Exact match | 266 contacts → |
“As a division of Ryan Specialty Underwriting Managers, US Assure distributes, underwrites and services construction and property insurance products across the U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | XPT Specialtyxptspecialty.com HQ: United StatesReported employees: 201-500 | United States | 201-500 | Exact match | 262 contacts → |
“XPT brings together underwriting and wholesale brokerage firms across many specialty lines through acquisitions and new product development.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | REVAUrevau.com HQ: Terrebonne, QC, CanadaReported employees: 201-500 | Terrebonne, QC, Canada | 201-500 | Exact match | 259 contacts → |
“Revau "REVolution Advanced Underwriting, a name that lives up to our mission to be the MGA-Led revolution of commercial insurance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Insperexinsperex.com HQ: Delray Beach, FL, United StatesReported employees: 51-200 | Delray Beach, FL, United States | 51-200 | Exact match | 245 contacts → |
“InspereX pioneered the delivery of innovative strategies to the retail market and has since become an industry leader in underwriting, marketing, and distributing structured…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Dual Groupdualgroup.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 240 contacts → |
“DUAL is a different kind of underwriting business.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | XS Brokersxsbrokers.com HQ: Quincy, CT, United StatesReported employees: 201-500 | Quincy, CT, United States | 201-500 | Exact match | 225 contacts → |
“XS Brokers is an independent wholesale brokerage facility that has been creatively solving hard-to-place insurance risks since 1978.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Genstar Insurance Services, LLCgeneralstar.com HQ: Stamford, IL, United StatesReported employees: 51-200 | Stamford, IL, United States | 51-200 | Exact match | 205 contacts → |
“GenStar Insurance Services, LLC is a premier provider of excess, surplus, and specialty property and casualty insurance written on General Star Indemnity Company (non-admitted)…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Euclid Transactionaleuclidtransactional.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 201 contacts → |
“Euclid Transactional is a leading global managing general agent that specializes in transactional risk insurance, including representations and warranties insurance and tax…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Bamboo Insurancebambooinsurance.com HQ: Midvale, UT, United StatesReported employees: 201-500 | Midvale, UT, United States | 201-500 | Exact match | 194 contacts → |
“Bamboo Insurance is a technology-enabled, underwriting-first managing general underwriter (MGU) focused on homeowners’ coverage for a new era of insurance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Veracity Insurance Solutions, LLCveracityinsurance.com HQ: Pleasant Grove, UT, United StatesReported employees: 51-200 | Pleasant Grove, UT, United States | 51-200 | Exact match | 194 contacts → |
“Veracity Insurance Solutions is an international insurance brokerage firm specializing in the placement of Programs, General Liability, and Product Liability Insurance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Victorvictorinsurance.com HQ: Bethesda, MD, United StatesReported employees: 201-500 | Bethesda, MD, United States | 201-500 | Exact match | 192 contacts → |
“Victor is a leading global managing general underwriter.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Argenta Groupargentagroup.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 190 contacts → |
“Argenta Holdings Ltd, a wholly owned subsidiary of Hannover Re, is an underwriting and insurance services group operating in the Lloyd’s Market.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Dual UKdualinsurance.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 190 contacts → |
“DUAL is driven by a mission to be the MGA of choice for brokers, clients and carriers, through the provision of deep underwriting expertise and global distribution.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Sovereign Trust Insurance PLCstiplc.com HQ: Lagos, NigeriaReported employees: 201-500 | Lagos, Nigeria | 201-500 | Exact match | 186 contacts → |
“Sovereign Trust Insurance Plc commenced business in January 1995 with an authorized share capital of N30 million and a fully paid-up capital of N20 million following the…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Underwriting firms: 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
816 records in the displayed employee bands.
4 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 820 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 ↗
Underwriting firms by location
6 lists · largest firstEvery Underwriting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Underwriting firms based in the United States252
- Underwriting firms based in the United Kingdom135
- Underwriting firms based in Australia49
- Underwriting firms based in South Africa49
- Underwriting firms based in France30
Cities
Questions about this company list
What does Exact match mean for underwriting firms?
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 underwriting firms did RevenueBase find worldwide?
The saved snapshot records 820 matching company records, 24,036 tracked contacts and 10,321 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: 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.
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Cite this list
RevenueBase Data Team. Top 25 underwriting firms worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/underwriting-firms.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗