Company lists · Data refreshed September 2026
Top 25 Technology errors and omissions insurers worldwide
RevenueBase identified 135 technology errors and omissions insurers worldwide as of September 2026 and tracks 2,678 professional contacts across them, including 1,261 with verified work emails. The United States is the largest market and Chicago the largest hub.
This list covers technology errors and omissions insurers 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 22, 2026. Country and city lists for technology errors and omissions insurers 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.
The 25 largest technology errors and omissions insurers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 738 contacts → | ||||
Indirect evidence “Providing a Spectrum of Healthcare Liability and Other Insurance Solutions … and More ProAssurance’s group of insurance companies specializes in providing the full spectrum of…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 348 contacts → | ||||
Indirect 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 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 130 contacts → | ||||
Indirect evidence “Berkley Select is a leading provider of professional liability insurance products across a full spectrum of disciplines and industries, for clients of virtually every size and…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 128 contacts → | ||||
Partial evidence “Attorneys' Liability Assurance Society (ALAS) was founded by its owner-insured law firms to provide a superior source of insurance coverage along with a level of service that…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 110 contacts → | ||||
Indirect evidence “ARC Excess & Surplus, LLC (ARC) is a Specialty Insurance Brokerage firm specializing in all forms of D&O, EPLI, Fiduciary Liability, E&O, Cyber, Privacy & Security Liability, and…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 108 contacts → | ||||
Indirect evidence “Counterpart is the first Agentic Insurance™ system that combines underwriting, broker support, risk mitigation, and claims expertise with advanced AI.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 96 contacts → | ||||
Indirect evidence “We have been a trusted underwriter of Management and Professional Liability Insurance since 1983.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 63 contacts → | ||||
Indirect evidence “Founded in 2020, Berkley Management Protection aims to disrupt the Management and Professional Liability marketplace by providing a new way to engage the market with talent, data…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 45 contacts → | ||||
Indirect evidence “Berkley Alliance Managers offers innovative Professional Liability insurance coverage and risk management solutions.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 43 contacts → | ||||
Indirect evidence “Dealey, Renton & Associates (DRA) has proudly served the needs of clients since 1950.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 42 contacts → | ||||
Partial evidence “Today's leading technology companies and tomorrow’s future leaders, find a worldwide trust in Berkley Technology Underwriters for their insurance underwriting needs.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 26 contacts → | ||||
Indirect evidence “Axis Insurance Services, LLC is a nationwide professional, Management and Cyber liability insurance brokerage.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 21 contacts → | ||||
Indirect evidence “Founded in 1988, PCIA is a professional liability insurance agency based in Brighton, Michigan.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 20 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 17 contacts → | ||||
Indirect evidence “The Herbert H.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 16 contacts → | ||||
Indirect evidence “Matrisk Assurance.com a été créé en 2010 afin de répondre aux besoins d'assurance des professionnels, principalement dans les risques Responsabilité Civile (RC Professionnelle, RC…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 16 contacts → | ||||
Strong evidence “McGowan Professional Liability (McGowanPRO) specializes in providing Professional Liability Insurance and errors and omissions (E&O Insurance) nationwide.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 15 contacts → | ||||
Indirect evidence “NOW Insurance provides professional, general, and cyber liability insurance for small businesses and professionals.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 13 contacts → | ||||
Indirect evidence “PLRisk Specialty Insurance Agency LLC is a leading wholesale insurance brokerage covering the professional liability market.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 13 contacts → | ||||
Indirect evidence “Professional and Managerial Liability Specialists ( E&O and D&O) also P&C.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 12 contacts → | ||||
Indirect evidence “EliteMGA offers the essential coverage required to protect home inspectors from potential claims that could cost a lot.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 12 contacts → | ||||
Indirect evidence “We are an Independent Insurance Agency whose sole purpose is to provide high quality, competitively priced professional liability insurance for our clients.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 12 contacts → | ||||
Indirect evidence “We are InsuranceBee- a professional liability insurance broker based in Maynard, MA.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 11 contacts → | ||||
Indirect evidence “We’re a leading professional liability insurance provider dedicated to incredible customer service and support.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 10 contacts → | ||||
Indirect evidence “Corretora com ampla experiência e atuação em diversos segmentos no mercado de seguros, especialista no ramo de Responsabilidade Civil Profissional.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: technology errors and omissions insurers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names technology errors and omissions insurers.
- Partial evidence
- Its own public description names part of technology errors and omissions insurers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name technology errors and omissions insurers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 135 technology errors and omissions insurers worldwide
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Technology errors and omissions insurers worldwide at a glance
As of Sep 22, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 technology errors and omissions insurers, 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
- Every country. Country and city lists for technology errors and omissions insurers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “technology errors and omissions insurers”. 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 technology errors and omissions insurers), 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 technology errors and omissions insurers, 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, 1,261 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 22, 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.
Technology errors and omissions insurers by location
1 lists · largest firstEvery Technology errors and omissions insurers 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 technology errors and omissions insurers, 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 technology errors and omissions insurers are there worldwide?
RevenueBase identified 135 technology errors and omissions insurers 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?
Proassurance, headquartered in Birmingham, tops this list with the largest team on record.
Which country has the most technology errors and omissions insurers?
The United States leads with 89 companies. Every technology errors and omissions insurers list by country and city is linked on this page.
Which city has the most technology errors and omissions insurers?
Chicago leads with 5 headquartered companies, followed by New York (4) and London (3).
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 1,261 verified decision-maker contacts tracked across these 135 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 22, 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.