Company lists · Data refreshed September 2026

Top 25 Insurance underwriting software companies based in the United States

Name: Insurance underwriting software companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 438 companies tracked

RevenueBase identified 438 insurance underwriting software companies headquartered in the United States as of September 2026 and tracks 32,437 professional contacts across them, including 15,518 with verified work emails and 10,518 with mobile numbers. New York is the largest hub.

This list covers insurance underwriting software companies headquartered in the United States, 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 4, 2026.

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 4, 2026 86% judged on-target in blind review

438Companies

32,437Contacts tracked

15,518Verified emails

10,518Mobile numbers

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The 25 largest insurance underwriting software companies based in the United States

Ranked by team size

Top 25 of 438 insurance underwriting software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to insurance underwriting software companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Vertafore	Partial evidence	Denver, NY, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,865 contacts →
	Partial evidence “We believe insurance is about relationships.” Source: RevenueBase Database · checked Sep 4, 2026
2	Applied Systems	Partial evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,233 contacts →
	Partial evidence “For more than 40 years, Applied Systems has created innovative technology for the global insurance industry.” Source: RevenueBase Database · checked Sep 4, 2026
3	Zinnia	Partial evidence	Greenwich, KS, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,905 contacts →
	Partial evidence “Zinnia, an Eldridge Industries business, simplifies L&A insurance by delivering comprehensive technology solutions for the industry’s most critical needs.” Source: RevenueBase Database · checked Sep 4, 2026
4	USLI	Strong evidence	Wayne, CO, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,314 contacts →
	Strong evidence “We aspire to be the very best insurance company at underwriting insurance products for our customers.” Source: RevenueBase Database · checked Sep 4, 2026
5	ISO	Strong evidence	Jersey City, NJ, United StatesHQ checked Sep 4, 2026	5,001-10,000	1,095 contacts →
	Strong evidence “Underwriting solutions at Verisk is a leading provider of advanced tools and analytics for the property/casualty and life insurance industries.” Source: RevenueBase Database · checked Sep 4, 2026
6	Insurity	Strong evidence	Hartford, CT, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,005 contacts →
	Strong evidence “Insurity is a leading provider of cloud-based software for insurance carriers, brokers, and MGAs.” Source: RevenueBase Database · checked Sep 4, 2026
7	Ipipeline	Partial evidence	Wayne, PA, United StatesHQ checked Sep 4, 2026	501-1,000	854 contacts →
	Partial evidence “iPipeline is a leading global provider of comprehensive and integrated digital solutions for the life insurance and financial services industries in North America, and life…” Source: RevenueBase Database · checked Sep 4, 2026
8	Illumifin	Strong evidence	Woodbury, MN, United StatesHQ checked Sep 4, 2026	1,001-5,000	785 contacts →
	Strong evidence “illumifin is a true partner to the insurance industry, delivering tech-enabled business processing services and essential software solutions to help transform insurers for…” Source: RevenueBase Database · checked Sep 4, 2026
9	Zywave	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 4, 2026	501-1,000	747 contacts →
	Indirect evidence “At Zywave, we don’t just build technology-we amplify impact.” Source: RevenueBase Database · checked Sep 4, 2026
10	Oneshield	Indirect evidence	Marlborough, MA, United StatesHQ checked Sep 4, 2026	201-500	506 contacts →
	Indirect evidence “OneShield provides business solutions for P&C insurers and MGAs of all sizes.” Source: RevenueBase Database · checked Sep 4, 2026
11	OIP Insurtech	Strong evidence	Henderson, NV, United StatesHQ checked Sep 4, 2026	1,001-5,000	497 contacts →
	Strong evidence “OIP Insurtech is a global insurance infrastructure company transforming specialty insurance operations through AI, underwriting intelligence, and operational execution systems.” Source: RevenueBase Database · checked Sep 4, 2026
12	Reserv	Indirect evidence	New York City, United StatesHQ checked Sep 4, 2026	501-1,000	400 contacts →
	Indirect evidence “Reserv leverages modern systems and creates new cutting-edge solutions to optimize any P&C claim.” Source: RevenueBase Database · checked Sep 4, 2026
13	Stratus	Indirect evidence	Shrewsbury, NJ, United StatesHQ checked Sep 4, 2026	501-1,000	367 contacts →
	Indirect evidence “At Stratus, people are at the heart of everything we do.” Source: RevenueBase Database · checked Sep 4, 2026
14	Atlantic Casualty Insurance CO	Partial evidence	Goldsboro, CT, United StatesHQ checked Sep 4, 2026	201-500	337 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 4, 2026
15	Sureify	Partial evidence	San Jose, CA, United StatesHQ checked Sep 4, 2026	201-500	266 contacts →
	Partial evidence “Sureify’s modular enterprise product suite, Lifetime, revolutionizes the life insurance industry by delivering cutting-edge user experiences.” Source: RevenueBase Database · checked Sep 4, 2026
16	Bold Penguin	Partial evidence	Columbus, OH, United StatesHQ checked Sep 4, 2026	201-500	252 contacts →
	Partial evidence “Bold Penguin is the market-leading digital solutions provider for commercial insurance.” Source: RevenueBase Database · checked Sep 4, 2026
17	Bestow	Partial evidence	Dallas, TX, United StatesHQ checked Sep 4, 2026	51-200	231 contacts →
	Partial evidence “Bestow partners with top life insurance carriers to deploy cutting-edge technology and data solutions that reduce costs, maximize efficiency, and drive growth by streamlining…” Source: RevenueBase Database · checked Sep 4, 2026
18	DYAD	Indirect evidence	Boston, MA, United StatesHQ checked Sep 4, 2026	201-500	230 contacts →
	Indirect evidence “Say hello to Dyad.” Source: RevenueBase Database · checked Sep 4, 2026
19	Injala	Partial evidence	Irving, TX, United StatesHQ checked Sep 4, 2026	51-200	198 contacts →
	Partial evidence “Injala builds risk management insurtech solutions and provides businesses with AI-driven software and support to streamline and reduce time-consuming errors in current industry…” Source: RevenueBase Database · checked Sep 4, 2026
20	Inforce	Indirect evidence	Cleveland, OH, United StatesHQ checked Sep 4, 2026	201-500	196 contacts →
	Indirect evidence “At INFORCE, we go above and beyond typical systems integration and technology consulting firms.” Source: RevenueBase Database · checked Sep 4, 2026
21	Ategrity Specialty Insurance Company	Indirect evidence	New York, NY, United StatesHQ checked Sep 4, 2026	51-200	190 contacts →
	Indirect evidence “Combining state-of-the-art technology solutions with a total, customer-centered commitment to service, Ategrity empowers streamlined decision-making with easy, responsive…” Source: RevenueBase Database · checked Sep 4, 2026
22	Agentsync	Partial evidence	Denver, CO, United StatesHQ checked Sep 4, 2026	201-500	188 contacts →
	Partial evidence “AgentSync builds modern insurance infrastructure that connects carriers, agencies, MGAs, and producers.” Source: RevenueBase Database · checked Sep 4, 2026
23	Sunfire	Strong evidence	Remote, United StatesHQ checked Sep 4, 2026	51-200	182 contacts →
	Strong evidence “SunFire is a profitable, well-capitalized software and services company providing transformative and proven technology solutions for the Medicare Insurance market.” Source: RevenueBase Database · checked Sep 4, 2026
24	JBK	Indirect evidence	College Station, TX, United StatesHQ checked Sep 4, 2026	201-500	177 contacts →
	Indirect evidence “JBK is a team of professionals building great technology for the business world since 2001.” Source: RevenueBase Database · checked Sep 4, 2026
25	Jarus Technologies	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 4, 2026	51-200	161 contacts →
	Indirect evidence “Jarus accelerates the digital transformation of business processes by leveraging a modular approach towards system architecture.” Source: RevenueBase Database · checked Sep 4, 2026

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: insurance underwriting software companies. 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 insurance underwriting software companies.
Partial evidence: Its own public description names part of insurance underwriting software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name insurance underwriting software companies. 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 438 insurance underwriting software companies based in the United States

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Insurance underwriting software companies based in the United States at a glance

As of Sep 4, 2026

47.8%Verified-email coverage

32.4%Mobile-number coverage

74.1Average contacts per company

11-50Median size (employees)

5.5%Largest-city concentration · New York

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

133

11-50

170

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

1,44031–60

8,41861–90

5,55290–180

108180+

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 insurance underwriting software companies, 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “insurance underwriting software companies”. 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 insurance underwriting software companies), 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 insurance underwriting software companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 15,518 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 4, 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.

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 insurance underwriting software companies, 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 insurance underwriting software companies are there based in the United States?

RevenueBase identified 438 insurance underwriting software companies headquartered in the United States 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?

Vertafore, headquartered in Melville, tops this list with the largest team on record.

Which city has the most insurance underwriting software companies?

New York leads with 24 headquartered companies, followed by Boston (10) and San Francisco (10).

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 15,518 verified decision-maker contacts tracked across these 438 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 4, 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.