Company lists · Data refreshed September 2026

Top 16 Commercial pollution liability insurers based in the United States

RevenueBase identified 32 commercial pollution liability insurers headquartered in the United States as of September 2026 and tracks 539 professional contacts across them, including 332 with verified work emails. Danbury is the largest hub.

This list covers commercial pollution liability insurers 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 19, 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 19, 2026 86% judged on-target in blind review
32Companies
539Contacts tracked
332Verified emails
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The 16 largest commercial pollution liability insurers based in the United States

Ranked by team size
Top 16 of 32 commercial pollution liability insurers based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to commercial pollution liability insurers: 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 evidenceJersey City, NJ, United StatesHQ checked Sep 19, 2026201-500196 contacts →

Indirect evidence

“Berkley Environmental facilities have earned their reputation as innovative problem solvers with the skill to recognize the reality of the market while maintaining underwriting…”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceGilbert, AZ, United StatesHQ checked Sep 19, 202651-200111 contacts →

Indirect evidence

“Environmental risk management.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceHouston, TX, United StatesHQ checked Sep 19, 202651-20089 contacts →

Indirect evidence

“Berkley Oil & Gas, a Berkley Company, is an energy insurance provider that is committed to providing innovative insurance products and services to upstream oil and gas customers.”

Source: RevenueBase Database · checked Sep 19, 2026
4Strong evidenceRandolph, NJ, United StatesHQ checked Sep 19, 202651-20020 contacts →

Strong evidence

“ECC Horizon (ECC) is a leading provider of environmental repair and pollution services for businesses, insurers, and individuals across the nation.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceRoswell, GA, United StatesHQ checked Sep 19, 202611-5017 contacts →

Indirect evidence

“Our clients are the reason we exist.”

Source: RevenueBase Database · checked Sep 19, 2026
6Strong evidenceIndianapolis, IN, United StatesHQ checked Sep 19, 202651-20014 contacts →

Strong evidence

“Star provides compliant, efficient management and removal of our customer’s environmental liabilities supported by a $5M pollution liability insurance policy.”

Source: RevenueBase Database · checked Sep 19, 2026
7Strong evidenceSan Diego, CA, United StatesHQ checked Sep 19, 202611-5010 contacts →

Strong evidence

“OREP specializes in placing errors and omissions, general liability, and pollution liability insurance and providing valuable benefits to real estate appraisers, home inspectors…”

Source: RevenueBase Database · checked Sep 19, 2026
8Strong evidenceTimonium, MD, United StatesHQ checked Sep 19, 20261-109 contacts →

Strong evidence

“We provide insurance & risk management solutions for many different environmental and pollution liability conditions.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceEl Dorado Hills, CA, United StatesHQ checked Sep 19, 20261-106 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceWest Palm Beach, FL, United StatesHQ checked Sep 19, 20261-105 contacts →

Indirect evidence

“Twin Elms is an independent brokerage that works exclusively on behalf of our clients.”

Source: RevenueBase Database · checked Sep 19, 2026
11Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 19, 20261-105 contacts →

Partial evidence

“STRAVA Specialty is a technology-driven program administrator focused on providing best-in-class environmental and package liability insurance products to the contracting and…”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceUk, United StatesHQ checked Sep 19, 2026201-5005 contacts →

Indirect evidence

“EnviroSure has become part of Gow-Gates Australasia.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceGilbert, AZ, United StatesHQ checked Sep 19, 202611-504 contacts →

Indirect evidence

“Formed in 2014 as a niche environmental insurance program, Conservation United has quickly grown to a national specialty independent insurance agency with offices in Phoenix, Quad…”

Source: RevenueBase Database · checked Sep 19, 2026
14Partial evidenceChicago, IL, United StatesHQ checked Sep 19, 20261-104 contacts →

Partial evidence

“Cantera Development Group LLC and its affiliates provide comprehensive environmental liability assumption and transfer solutions to corporations, property owners, PRPs, and…”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceFair Oaks, CA, United StatesHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“At Empire West Insurance Services, we believe that when businesses are protected, everyone benefits-from the contractors restoring homes to the communities they serve and the…”

Source: RevenueBase Database · checked Sep 19, 2026
16Strong evidenceRancho Cucamonga, CA, United StatesHQ checked Sep 19, 20261-101 contacts →

Strong evidence

“Porter Commercial Insurance Services General Liability,Workers' Comp, Cyber Liability, Product Liability, Commercial Auto, Commercial Property, Earthquake, Flood, Commercial…”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 16 of 32 commercial pollution liability insurers based in the United States

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Commercial pollution liability insurers based in the United States at a glance

As of Sep 19, 2026
61.6%Verified-email coverage
16.8Average contacts per company
1-10Median size (employees)
6.2%Largest-city concentration · Danbury
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
6
51-200
6
201-500
2
501-1,000
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 32 companies.

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 commercial pollution liability 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.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “commercial pollution liability 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 commercial pollution liability 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 commercial pollution liability insurers, 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, 332 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 19, 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 commercial pollution liability 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 commercial pollution liability insurers are there based in the United States?

RevenueBase identified 32 commercial pollution liability insurers 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?

Berkley Environmental A Berkley Company, headquartered in Jersey City, tops this list with the largest team on record.

Which city has the most commercial pollution liability insurers?

Danbury leads with 2 headquartered companies, followed by Gilbert (2) and New York (2).

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 332 verified decision-maker contacts tracked across these 32 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 19, 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.