Company lists · Data refreshed September 2026

Top 13 Business insurance agencies based in Washington, United States

RevenueBase identified 31 business insurance agencies headquartered in Washington, United States as of September 2026 and tracks 183 professional contacts across them, including 86 with verified work emails. Houston is the largest hub.

This list covers business insurance agencies headquartered in Washington, 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 16, 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 16, 2026 86% judged on-target in blind review
31Companies
183Contacts tracked
86Verified emails
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The 13 largest business insurance agencies based in Washington, United States

Ranked by team size
Top 13 of 31 business insurance agencies based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to business insurance agencies: 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
1Strong evidenceWashington, DC, United StatesHQ checked Sep 16, 202611-5042 contacts →

Strong evidence

“HWP Insurance is one of the largest privately owned full service independent insurance agencies in the Mid-Atlantic.”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceWashington, NC, United StatesHQ checked Sep 16, 202651-20036 contacts →

Indirect evidence

“Since 1963, the mission of Flatlands Jessup has been to offer a reliable source of knowledge, support and unmatched personal service to the people of eastern North Carolina.”

Source: RevenueBase Database · checked Sep 16, 2026
3Strong evidenceWashington, PA, United StatesHQ checked Sep 16, 202611-5023 contacts →

Strong evidence

“Marthinsen and Salvitti Insurance Group is an independent full service agency Marthinsen & Salvitti Insurance Group offers a wide range of commercial and personal insurance…”

Source: RevenueBase Database · checked Sep 16, 2026
4Strong evidenceWashington, NC, United StatesHQ checked Sep 16, 202611-5012 contacts →

Strong evidence

“Flatlands Insurance Group was previously known as Coastal Insurance Service, LLC and Carowan-Allen Insurance Agency, Inc.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceWashington, PA, United StatesHQ checked Sep 16, 20261-1011 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
6Strong evidenceWashington, MO, United StatesHQ checked Sep 16, 202611-506 contacts →

Strong evidence

“Schroepfer Insurance Agency was founded in 1948 and has been located in Washington, Missouri since its inception.”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceWashington, GA, United StatesHQ checked Sep 16, 202611-504 contacts →

Indirect evidence

“Why Choose Us?”

Source: RevenueBase Database · checked Sep 16, 2026
8Strong evidenceWashington, DC, United StatesHQ checked Sep 16, 20261-103 contacts →

Strong evidence

“Capital Insurance Partners is a full service insurance brokerage operating in Northwest DC.”

Source: RevenueBase Database · checked Sep 16, 2026
9Strong evidenceWashington, DC, United StatesHQ checked Sep 16, 20261-103 contacts →

Strong evidence

“I have been in the Insurance Industry for over 12 years.”

Source: RevenueBase Database · checked Sep 16, 2026
10Strong evidenceWashington, PA, United StatesHQ checked Sep 16, 20261-102 contacts →

Strong evidence

“Since 1953, Chambers Insurance Agency has been family-owned and operated at our headquarters in Washington, PA.”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceWashington, MI, United StatesHQ checked Sep 16, 20261-101 contacts →

Indirect evidence

“Guiding you to safety!”

Source: RevenueBase Database · checked Sep 16, 2026
12Strong evidenceWashington, KS, United StatesHQ checked Sep 16, 20261-101 contacts →

Strong evidence

“The Dragastin Insurance Agency is an insurance company based out of 117 C St, Washington, KS, United States.”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceWashington, DC, United StatesHQ checked Sep 16, 20261-101 contacts →

Indirect evidence

“Since 1948, CB Chambers has been providing families and businesses with highly customized solutions and objective, expert guidance to go with it.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 13 of 31 business insurance agencies based in Washington, United States

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Business insurance agencies based in Washington, United States at a glance

As of Sep 16, 2026
47.0%Verified-email coverage
5.9Average contacts per company
1-10Median size (employees)
793.5%Largest-city concentration · Houston
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
21
11-50
7
51-200
3

Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 31 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 business insurance agencies, 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 Washington, United States whose own description of what they do matches “business insurance agencies”. 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 business insurance agencies), 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 business insurance agencies, and records with no verified work email. Companies headquartered outside Washington 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, 86 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.

Business insurance agencies by metro in the United States

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 business insurance agencies, 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 business insurance agencies are there based in Washington, United States?

RevenueBase identified 31 business insurance agencies headquartered in Washington, 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?

HWP Insurance, headquartered in Washington, tops this list with the largest team on record.

Which city has the most business insurance agencies?

Houston leads with 246 headquartered companies, followed by New York (184) and Miami (156).

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 86 verified decision-maker contacts tracked across these 31 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.