Company lists · Data refreshed September 2026

Top 21 Insurance law firms based in Walnut Creek, United States

RevenueBase identified 50 insurance law firms headquartered in Walnut Creek, United States as of September 2026 and tracks 653 professional contacts across them, including 278 with verified work emails. New York is the largest hub.

This list covers insurance law firms headquartered in Walnut Creek, 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review
50Companies
653Contacts tracked
278Verified emails
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The 21 largest insurance law firms based in Walnut Creek, United States

Ranked by team size
Top 21 of 50 insurance law firms based in Walnut Creek, United States, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names insurance law firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Burnham BrownPartial evidence
Walnut Creek, CA, United StatesHQ checked Sep 3, 202611-5051

“Burnham Brown is an established law firm with offices in California.”

Source: company website · checked Sep 3, 2026
2Walnut Creek, CA, United StatesHQ checked Sep 3, 202611-5037

“Superior litigation and trial attorneys have defined Bledsoe, Diestel, Treppa & Crane LLP for over 75 years.”

Source: company website · checked Sep 3, 2026
3
Brothers Smith LLPPartial evidence
Walnut Creek, CA, United StatesHQ checked Sep 3, 202611-5037

“The law firm of Brothers Smith LLP provides cutting edge, responsive, and results-oriented legal counsel across a diverse range of issues and opportunities affecting businesses…”

Source: company website · checked Sep 3, 2026
4
Venardi Zurada LLPIndirect evidence
Walnut Creek, CA, United StatesHQ checked Sep 3, 202611-5021

“Official Sponsors of the San Francisco 49ers.”

Source: company website · checked Sep 3, 2026
5
Livingston LAW Firm CAIndirect evidence
Walnut Creek, CA, United StatesHQ checked Sep 3, 202611-5018

“Uncompromising quality.”

Source: company website · checked Sep 3, 2026
6
Cooper & Mccloskey, INCPartial evidence
Walnut Creek, CA, United StatesHQ checked Sep 3, 202611-5014

“Cooper & McCloskey, Inc.(CMI) is a wholesale insurance brokerage specializing in Professional Liability.”

Source: company website · checked Sep 3, 2026
7Walnut Creek, CA, United StatesHQ checked Sep 3, 202611-5010

“Casper, Meadows, Schwartz & Cook is a Northern California personal injury law firm with a long-standing reputation for excellence in representing individuals and families in…”

Source: company website · checked Sep 3, 2026
8
Dayta GroupIndirect evidence
Walnut Creek, CA, United StatesHQ checked Sep 3, 202611-508

“IMPACT THROUGH PARTNERSHIP.”

Source: company website · checked Sep 3, 2026
9
Stone & Associates, APCIndirect evidence
Walnut Creek, CA, United StatesHQ checked Sep 3, 202611-506
Source: company website · checked Sep 3, 2026
10
Sellar Hazard & LuciaPartial evidence
Walnut Creek, CA, United StatesHQ checked Sep 3, 202611-506

“Sellar Hazard & Lucia is one of the oldest law firms in the San Francisco Bay Area.”

Source: company website · checked Sep 3, 2026
11
Horner LAW Group, PCIndirect evidence
Walnut Creek, CA, United StatesHQ checked Sep 3, 20261-104
Source: company website · checked Sep 3, 2026
12
Appel LAW Firm LLPPartial evidence
Walnut Creek, CA, United StatesHQ checked Sep 3, 20261-104

“With 50+ combined years working exclusively on personal injury and workers’ compensation cases, we are one of the premier personal injury law firms in the San Francisco/East Bay…”

Source: company website · checked Sep 3, 2026
13
Horst Legal Counsel, PCIndirect evidence
Walnut Creek, CA, United StatesHQ checked Sep 3, 20261-103

“At Horst Legal Counsel, clients receive consistent, exceptional service, strategically tailored to their individual goals.”

Source: company website · checked Sep 3, 2026
14
Fetto LAW GroupPartial evidence
Walnut Creek, CA, United StatesHQ checked Sep 3, 20261-103

“At the Fetto Law Group, their personal injury lawyers pride themselves on serving as advocates for the injured.”

Source: company website · checked Sep 3, 2026
15
Shingler LAWPartial evidence
Walnut Creek, CA, United StatesHQ checked Sep 3, 20261-103

“SHINGLER LAW is a company based out of 1255 Treat Blvd, Suite 300, Walnut Creek, California, United States.”

Source: company website · checked Sep 3, 2026
16
Weston LAW Group, PCPartial evidence
Walnut Creek, CA, United StatesHQ checked Sep 3, 20261-103

“AREAS OF PRACTICE- Business & Investments - Personal Injury - Real Estate/Landlord - Estate Planning - Litigation - Insurance Defense - Pro-Per Limited Engagement Agreements - So…”

Source: company website · checked Sep 3, 2026
17
FZF Law, P.CIndirect evidence
Walnut Creek, CA, United StatesHQ checked Sep 3, 20261-102
Source: company website · checked Sep 3, 2026
18Walnut Creek, CA, United StatesHQ checked Sep 3, 202611-502

“VLTA is an experienced, AV-rated, civil litigation and business counseling law firm providing clients with cutting-edge expertise in a variety of legal specialties.”

Source: company website · checked Sep 3, 2026
19
Pocklington LAW OfficesIndirect evidence
Walnut Creek, CA, United StatesHQ checked Sep 3, 20261-101
Source: company website · checked Sep 3, 2026
20
Brown Poore LLPIndirect evidence
Walnut Creek, CA, United StatesHQ checked Sep 3, 20261-101

“Brown | Poore LLP has represented clients at all levels including the federal and state trial courts, the California Court of Appeal, and the Ninth Circuit Court of Appeals.”

Source: company website · checked Sep 3, 2026
21
The Herman FirmIndirect evidence
Walnut Creek, CA, United StatesHQ checked Sep 3, 20261-101

“Founded in 2014 by Michael Herman with the purpose to provide the highest quality legal representation to those injured through no fault of their own.”

Source: company website · checked Sep 3, 2026

Showing 21 of 50 insurance law firms based in Walnut Creek, United States

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Insurance law firms based in Walnut Creek, United States at a glance

As of Sep 3, 2026
1-10Median size (employees)
New YorkLargest hub · 778 HQs
Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

1-10
28
11-50
18
51-200
3

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Walnut Creek, over 50 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 insurance law firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Walnut Creek, United States whose own description of what they do matches “insurance law firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among insurance law firms, and records with no verified work email. Companies headquartered outside Walnut Creek 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 an evidence 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, 278 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 3, 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.

Insurance law firms by metro in the United States

Frequently asked

How many insurance law firms are there based in Walnut Creek, United States?

RevenueBase identified 50 insurance law firms headquartered in Walnut Creek, 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?

Burnham Brown, headquartered in Walnut Creek, tops this list with the largest team on record.

Which city has the most insurance law firms?

New York leads with 778 headquartered companies, followed by Houston (524) and Chicago (492).

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 278 verified decision-maker contacts tracked across these 50 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 3, 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 SmartSearch, 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.