Company lists · Data refreshed September 2026

Top 25 Cyber liability insurance underwriters worldwide

RevenueBase identified 121 cyber liability insurance underwriters worldwide as of September 2026 and tracks 6,725 professional contacts across them, including 3,722 with verified work emails and 0 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers cyber liability insurance underwriters worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026. Country and city lists for cyber liability insurance underwriters follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review
121Companies
6,725Contacts tracked
3,722Verified emails
0Mobile numbers
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The 25 largest cyber liability insurance underwriters worldwide

Ranked by team size
Top 25 of 121 cyber liability insurance underwriters worldwide, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to cyber liability insurance underwriters: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceNew York, NY, United StatesHQ checked Sep 16, 202610001+1,883 contacts →

Indirect evidence

“At QBE we’re driven by our purpose of enabling a more resilient future.”

Source: RevenueBase Database · checked Sep 16, 2026
2Strong evidenceLondon, United KingdomHQ checked Sep 16, 20261,001-5,0001,115 contacts →

Strong evidence

“CFC is a specialist insurance provider, pioneer in emerging risk and market leader in cyber.”

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 16, 2026501-1,000724 contacts →

Partial evidence

“Coalition is the world's first Active Insurance provider designed to help prevent digital risk before it strikes.”

Source: RevenueBase Database · checked Sep 16, 2026
4Partial evidenceAtlanta, GA, United StatesHQ checked Sep 16, 20261,001-5,000412 contacts →

Partial evidence

“Hiscox USA is a growing specialty insurance company with offices across the US.”

Source: RevenueBase Database · checked Sep 16, 2026
5Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 16, 2026201-500348 contacts →

Partial evidence

“At-Bay is the world’s first InsurSec provider designed from the ground up to help businesses tackle cyber risk head on.”

Source: RevenueBase Database · checked Sep 16, 2026
6Strong evidenceNY, United StatesHQ checked Sep 16, 2026201-500264 contacts →

Strong evidence

“At Resilience, we’re creating a new category that integrates cybersecurity, cyber insurance, and cyber risk management.”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceLondon, United KingdomHQ checked Sep 16, 2026201-500257 contacts →

Indirect evidence

“In an industry often shaped by legacy and complexity, Inigo was built to be different.”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidenceWest Hartford, CT, United StatesHQ checked Sep 16, 202651-200157 contacts →

Partial evidence

“Beazley Security is a global cyber risk management firm committed to helping clients develop true cyber resilience, improving their ability to withstand and recover from any…”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 16, 202651-200124 contacts →

Partial evidence

“CyberCube is delivering the world’s leading cyber risk modeling and analytics.”

Source: RevenueBase Database · checked Sep 16, 2026
10Strong evidenceBoston, MA, United StatesHQ checked Sep 16, 2026201-500114 contacts →

Strong evidence

“Corvus by Travelers is a team of underwriters, technologists, and cybersecurity pros on a mission to reduce cyber risk and make organizations safer.”

Source: RevenueBase Database · checked Sep 16, 2026
11Strong evidenceWayne, PA, United StatesHQ checked Sep 16, 202651-20066 contacts →

Strong evidence

“Apogee Insurance Group is a Berkshire Hathaway specialty broker focused on Professional (E&O), Management (D&O, EPL, Crime, and Fiduciary), Cyber, and Pollution Liability risks.”

Source: RevenueBase Database · checked Sep 16, 2026
12Strong evidenceNew York, NY, United StatesHQ checked Sep 16, 202611-5066 contacts →

Strong evidence

“Elpha Secure is a cyber insurance MGA serving small and midsize businesses across a range of industries.”

Source: RevenueBase Database · checked Sep 16, 2026
13Strong evidenceBristol, United KingdomHQ checked Sep 16, 202611-5064 contacts →

Strong evidence

“Envelop Risk is a global specialty cyber underwriting firm, combining decades of insurance industry expertise with sophisticated cyber and machine learning analytics tools.”

Source: RevenueBase Database · checked Sep 16, 2026
14Partial evidenceLondon, United KingdomHQ checked Sep 16, 202651-20057 contacts →

Partial evidence

“KYND is a pioneering cyber risk analytics platform that transforms complex data into clear, actionable insight.”

Source: RevenueBase Database · checked Sep 16, 2026
15Strong evidenceNew York, NY, United StatesHQ checked Sep 16, 202611-5047 contacts →

Strong evidence

“Converge fuses cyber insurance, security and technology to provide businesses with clear, confident cyber protection.”

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceAtlanta, GA, United StatesHQ checked Sep 16, 202611-5045 contacts →

Partial evidence

“Located in the Atlanta, INSUREtrust is a pioneer in the cyber industry.”

Source: RevenueBase Database · checked Sep 16, 2026
17Strong evidenceLondon, United KingdomHQ checked Sep 16, 202651-20043 contacts →

Strong evidence

“At Assured, we curate and execute cyber insurance programmes that assure corporates and institutions that their insurance will deliver when they need it most.”

Source: RevenueBase Database · checked Sep 16, 2026
18Partial evidenceLondon, United KingdomHQ checked Sep 16, 202611-5037 contacts →

Partial evidence

“Medical & Commercial International (MCI) specialises in underwriting international liability risks.”

Source: RevenueBase Database · checked Sep 16, 2026
19Strong evidenceLondon, United KingdomHQ checked Sep 16, 2026201-50031 contacts →

Strong evidence

“Barbican Insurance Group underwrites business predominantly through our syndicates at Lloyd’s.”

Source: RevenueBase Database · checked Sep 16, 2026
20Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 16, 202611-5029 contacts →

Strong evidence

“Upfort is a leading platform for cyber security and insurance that provides holistic protection from evolving cyber threats.”

Source: RevenueBase Database · checked Sep 16, 2026
21Strong evidenceFranklin Lakes, United StatesHQ checked Sep 16, 202611-5026 contacts →

Strong evidence

“Axis Insurance Services, LLC is a nationwide professional, Management and Cyber liability insurance brokerage.”

Source: RevenueBase Database · checked Sep 16, 2026
22Strong evidenceLuxembourgHQ checked Sep 16, 202611-5024 contacts →

Strong evidence

“Onda is on a mission to simplify cyber insurance.”

Source: RevenueBase Database · checked Sep 16, 2026
23Strong evidenceMiami, FL, United StatesHQ checked Sep 16, 202611-5022 contacts →

Strong evidence

“Canopy Specialty Insurance is an Insurance Program Administrator/Manager that underwrites Specialty insurance product lines exclusively on behalf of "A" rated carrier partners and…”

Source: RevenueBase Database · checked Sep 16, 2026
24Strong evidenceMalvern, PA, United StatesHQ checked Sep 16, 202611-5021 contacts →

Strong evidence

“We are E&O, D&O, and Cyber Insurance experts.”

Source: RevenueBase Database · checked Sep 16, 2026
25Indirect evidenceLondon, United KingdomHQ checked Sep 16, 202611-5020 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 121 cyber liability insurance underwriters worldwide

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Cyber liability insurance underwriters worldwide at a glance

As of Sep 16, 2026
55.3%Verified-email coverage
55.6Average contacts per company
11-50Median size (employees)
16.5%Largest-city concentration · London
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
59
11-50
41
51-200
11
201-500
5
501-1,000
1
1,001-5,000
3
10001+
1

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among cyber liability insurance underwriters, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
2 countries, largest first: the United States, the United Kingdom. Country and city lists for cyber liability insurance underwriters are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “cyber liability insurance underwriters”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names cyber liability insurance underwriters), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among cyber liability insurance underwriters, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 3,722 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 16, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Cyber liability insurance underwriters by location

2 lists · largest first

Every Cyber liability insurance underwriters list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names cyber liability insurance underwriters, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many cyber liability insurance underwriters are there worldwide?

RevenueBase identified 121 cyber liability insurance underwriters worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

QBE North America, headquartered in New York, tops this list with the largest team on record.

Which country has the most cyber liability insurance underwriters?

The United States leads with 94 companies, followed by the United Kingdom (27). Every cyber liability insurance underwriters list by country and city is linked on this page.

Which city has the most cyber liability insurance underwriters?

London leads with 20 headquartered companies, followed by New York (7) and San Francisco (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,722 verified decision-maker contacts tracked across these 121 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 2026.

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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 Smart Search, 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.