Company lists · Data refreshed September 2026

Top 25 Estate tax attorneys worldwide

Name: Estate tax attorneys worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 7,951 companies tracked

RevenueBase identified 7,951 estate tax attorneys worldwide as of September 2026 and tracks 42,735 professional contacts across them, including 20,258 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers estate tax attorneys 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 20, 2026. Country and city lists for estate tax attorneys 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.

How to read this list RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

7,951Companies

42,735Contacts tracked

20,258Verified emails

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The 25 largest estate tax attorneys worldwide

Ranked by team size

Top 25 of 7,951 estate tax attorneys worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to estate tax attorneys: 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	Withersworldwide	Indirect evidence	London, GB	1,001-5,000	910 contacts →
	Indirect evidence “For the past 125 years we have been proud to assist some of the world's most remarkable individuals and organisations in realising their ambitions and using private capital to…” Source: RevenueBase Database · checked Sep 20, 2026
2	Capital Legacy	Indirect evidence	Bryanston, South AfricaHQ checked Sep 20, 2026	501-1,000	718 contacts →
	Indirect evidence “Trust us to help you Leave a Legacy.” Source: RevenueBase Database · checked Sep 20, 2026
3	Apercen Partners LLC	Partial evidence	Palo Alto, CA, United StatesHQ checked Sep 20, 2026	201-500	399 contacts →
	Partial evidence “Originating from the English and Latin roots of “apercu,” an act of insight, and “census,” an applied study of wealth and property, Apercen is a tax consulting firm offering high…” Source: RevenueBase Database · checked Sep 20, 2026
4	Rockwills International Group	Indirect evidence	Kuala Lumpur, MalaysiaHQ checked Sep 20, 2026	51-200	358 contacts →
	Indirect evidence “The Rockwills International Group provides solutions and support services in the areas of trusts and succession, management and distribution of wealth.” Source: RevenueBase Database · checked Sep 20, 2026
5	Carnahan Evans PC	Indirect evidence	Springfield, MO, United StatesHQ checked Sep 20, 2026	n/a	317 contacts →
	Indirect evidence “Founded in 1979, Carnahan Evans PC is a locally owned and operated law firm, noted for its commitment to providing superior client service to a diverse client base, including…” Source: RevenueBase Database · checked Sep 20, 2026
6	Turcan Connell	Partial evidence	Edinburgh, United KingdomHQ checked Sep 20, 2026	201-500	246 contacts →
	Partial evidence “Turcan Connell specialises in providing legal and tax advice to private individuals and their families.” Source: RevenueBase Database · checked Sep 20, 2026
7	Shulman Rogers	Indirect evidence	Potomac, MD, United StatesHQ checked Sep 20, 2026	201-500	212 contacts →
	Indirect evidence “Shulman Rogers was founded in 1972 on a simple belief: the best legal counsel is both exceptional and accessible.” Source: RevenueBase Database · checked Sep 20, 2026
8	Cummings & Lockwood LLC	Indirect evidence	Stamford, CT, United StatesHQ checked Sep 20, 2026	201-500	212 contacts →
	Indirect evidence “Founded in 1909, Cummings & Lockwood provides sophisticated legal representation to individuals and families, family offices, closely held businesses, other commercial enterprises…” Source: RevenueBase Database · checked Sep 20, 2026
9	Harrison Drury Solicitors	Indirect evidence	Preston, United KingdomHQ checked Sep 20, 2026	201-500	207 contacts →
	Indirect evidence “Harrison Drury is a people business with relationships at its heart.” Source: RevenueBase Database · checked Sep 20, 2026
10	WBW Solicitors & Chartered Financial Planners	Indirect evidence	Newton Abbot, United KingdomHQ checked Sep 20, 2026	201-500	189 contacts →
	Indirect evidence “WBW offers a full range of legal and financial planning services to individuals and businesses, both locally and nationally.” Source: RevenueBase Database · checked Sep 20, 2026
11	Berliner Cohen, LLP	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 20, 2026	51-200	166 contacts →
	Indirect evidence “Berliner Cohen, LLP, is a highly-respected Northern California full-service business law firm.” Source: RevenueBase Database · checked Sep 20, 2026
12	Harrison LLP	Indirect evidence	12 U.s. Offices, IL, United StatesHQ checked Sep 20, 2026	201-500	160 contacts →
	Indirect evidence “Harrison LLP is a national law firm that assists clients in defining and achieving their private wealth goals, delivering peace of mind through sophisticated and practical legal…” Source: RevenueBase Database · checked Sep 20, 2026
13	Moses Singer	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	51-200	156 contacts →
	Indirect evidence “Moses Singer provides legal services to companies, individuals and families in the New York City area.” Source: RevenueBase Database · checked Sep 20, 2026
14	Right Legal Group	Partial evidence	Derby, United KingdomHQ checked Sep 20, 2026	51-200	150 contacts →
	Partial evidence “Right Legal Group is a well-established law firm that forms part of a network of Law firms that specialise in Wills and Probate services.” Source: RevenueBase Database · checked Sep 20, 2026
15	AGEIS	Partial evidence	Sydney, AustraliaHQ checked Sep 20, 2026	11-50	150 contacts →
	Partial evidence “AGEIS takes pride in revolutionising the landscape of accounting, tax, legal advisory.” Source: RevenueBase Database · checked Sep 20, 2026
16	Jackson Lees Group	Indirect evidence	Liverpool, United KingdomHQ checked Sep 20, 2026	201-500	142 contacts →
	Indirect evidence “Making a positive difference to people’s lives through the practice of law is the defining principle of what we do at the Jackson Lees Group.” Source: RevenueBase Database · checked Sep 20, 2026
17	Hemenway & Barnes LLP	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	51-200	140 contacts →
	Indirect evidence “Based in Boston, Hemenway & Barnes LLP has served for more than 160 years as trusted counsel to the region’s high net worth families, businesses, and nonprofit organizations.” Source: RevenueBase Database · checked Sep 20, 2026
18	Best & Flanagan	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 20, 2026	51-200	136 contacts →
	Partial evidence “For one hundred years, Best & Flanagan attorneys have been building uniquely close relationships with our clients, including closely-held businesses, nonprofits, generations of…” Source: RevenueBase Database · checked Sep 20, 2026
19	Huck Bouma, PC	Indirect evidence	Wheaton, IL, United StatesHQ checked Sep 20, 2026	51-200	133 contacts →
	Indirect evidence “Huck Bouma, PC has the resources of a downtown Chicago law firm, with the ability to provide personalized, individualized services to you, its clients.” Source: RevenueBase Database · checked Sep 20, 2026
20	Universal Wealth	Indirect evidence	Surprise, AZ, United StatesHQ checked Sep 20, 2026	1,001-5,000	133 contacts →
	Indirect evidence “Universal Wealth is lead by Andre L.” Source: RevenueBase Database · checked Sep 20, 2026
21	Gravis Law, Pllc	Indirect evidence	Richland, WA, United StatesHQ checked Sep 20, 2026	51-200	131 contacts →
	Indirect evidence “Gravis Law provides accessible legal services that simplify complex problems and help clients clearly understand their options, all tailored to the unique needs of individuals…” Source: RevenueBase Database · checked Sep 20, 2026
22	Giarmarco, Mullins & Horton, P.C	Indirect evidence	Troy, MI, United StatesHQ checked Sep 20, 2026	51-200	130 contacts →
	Indirect evidence “Founded 40 years ago, Giarmarco, Mullins & Horton, P.C.” Source: RevenueBase Database · checked Sep 20, 2026
23	Burke, Warren, Mackay & Serritella	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	129 contacts →
	Indirect evidence “Burke, Warren, MacKay & Serritella, P.C.” Source: RevenueBase Database · checked Sep 20, 2026
24	Richards Buell Sutton LLP	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 20, 2026	51-200	129 contacts →
	Indirect evidence “BC's oldest firm with a history of over 150 years of delivering practical, quality, and cost-effective legal services to the community since 1871.” Source: RevenueBase Database · checked Sep 20, 2026
25	Vardags	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	114 contacts →
	Indirect evidence “Vardags is a top law firm which works exclusively for high net worth clients (assets in excess of £1m and/or annual income in excess of and private companies.” Source: RevenueBase Database · checked Sep 20, 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: estate tax attorneys. 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 estate tax attorneys.
Partial evidence: Its own public description names part of estate tax attorneys, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name estate tax attorneys. 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 7,951 estate tax attorneys worldwide

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Estate tax attorneys worldwide at a glance

As of Sep 20, 2026

47.4%Verified-email coverage

5.4Average contacts per company

1-10Median size (employees)

1.6%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

6,365

11-50

1,355

51-200

162

201-500

501-1,000

1,001-5,000

10001+

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 estate tax attorneys, 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 estate tax attorneys are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “estate tax attorneys”. 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 estate tax attorneys), 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 estate tax attorneys, 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, 20,258 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 20, 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.

Estate tax attorneys by location

40 lists · largest first

Every Estate tax attorneys list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 estate tax attorneys, 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 estate tax attorneys are there worldwide?

RevenueBase identified 7,951 estate tax attorneys 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?

Withersworldwide, headquartered in London, tops this list with the largest team on record.

Which country has the most estate tax attorneys?

The United States leads with 5,593 companies, followed by the United Kingdom (272) and Canada (245). Every estate tax attorneys list by country and city is linked on this page.

Which city has the most estate tax attorneys?

New York leads with 127 headquartered companies, followed by Houston (79) and Chicago (73).

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 20,258 verified decision-maker contacts tracked across these 7,951 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 20, 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.