Company lists · Data refreshed September 2026

Top 23 Estate planning service providers based in New York, United States

RevenueBase identified 132 estate planning service providers headquartered in New York, United States as of September 2026 and tracks 693 professional contacts across them, including 366 with verified work emails. New York is the largest hub.

This list covers estate planning service providers headquartered in New York, 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 20, 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 20, 2026 86% judged on-target in blind review
132Companies
693Contacts tracked
366Verified emails
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The 23 largest estate planning service providers based in New York, United States

Ranked by team size
Top 23 of 132 estate planning service providers based in New York, United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to estate planning service providers: 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 evidenceNew York, NY, United StatesHQ checked Sep 20, 202651-20079 contacts →

Indirect evidence

“Cassin & Cassin LLP, a law firm with three offices in New York City, Purchase, NY and Phoenix, AZ, has four decades of experience providing the highest quality of service to our…”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5040 contacts →

Indirect evidence

“We are an experienced group of professionals who have helped serve the financial needs of our clients since 1992.”

Source: RevenueBase Database · checked Sep 20, 2026
3Strong evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5039 contacts →

Strong evidence

“Ehrenkranz Partners offers a comprehensive suite of advisory services, including investment management, family office services, estate planning counsel, and tax strategy.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5027 contacts →

Indirect evidence

“Littman Krooks LLP combines extensive legal knowledge and expertise with individual attention to your needs.”

Source: RevenueBase Database · checked Sep 20, 2026
5Strong evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5026 contacts →

Strong evidence

“Our firm provides legal representation in all areas of: personal and business asset protection trust & estate planning wealth preservation elder law retirement planning wills and…”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5025 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
7Strong evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5021 contacts →

Strong evidence

“Now celebrating its 30 years, McManus & Associates continues to deliver the highest quality estate, income tax and philanthropic planning advisory services with the precision and…”

Source: RevenueBase Database · checked Sep 20, 2026
8Strong evidenceNew York, NY, United StatesHQ checked Sep 20, 20261-1015 contacts →

Strong evidence

“At Gaber Group, we recognize that estate planning needs change over time, due to tax legislation, market volatility or personal circumstances.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 20261-1012 contacts →

Indirect evidence

“Kilter Group is an independent, innovative financial services firm at the forefront of the industry.”

Source: RevenueBase Database · checked Sep 20, 2026
10Strong evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5012 contacts →

Strong evidence

“FastWill is a digital platform designed to make estate planning simple, accessible and fun.”

Source: RevenueBase Database · checked Sep 20, 2026
11Strong evidenceNew York, NY, United StatesHQ checked Sep 20, 20261-109 contacts →

Strong evidence

“WITH SOPHISTICATED TRUST AND ESTATE SOLUTIONS – BE IT FOR COMPLEX ESTATE PLANNING SCENARIOS, DIFFICULT ESTATE ADMINISTRATIONS OR COMPLEX TAX AND ESTATE LITIGATIONS – WE LEAD…”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 20261-108 contacts →

Indirect evidence

“The law firm of Manice Budd & Baggett LLP, with attorneys licensed in New York, Connecticut, and Florida, specializes in counseling individuals, families, private foundations, and…”

Source: RevenueBase Database · checked Sep 20, 2026
13Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 20261-108 contacts →

Partial evidence

“Erwin & Marcus, P.C, formed in 2015, is the successor to Hill, Ullman & Erwin P.C, which since 1978 has guided clients through the process of wills, trusts, gift and estate…”

Source: RevenueBase Database · checked Sep 20, 2026
14Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 20261-108 contacts →

Partial evidence

“As a boutique law firm dedicated exclusively to the practice of trusts and estates for high net worth individuals, we have extensive knowledge and practical experience advising…”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceNew York, United StatesHQ checked Sep 20, 20261-107 contacts →

Indirect evidence

“At Jill Miller & Associates, P.C.”

Source: RevenueBase Database · checked Sep 20, 2026
16Strong evidenceNew York, NY, United StatesHQ checked Sep 20, 20261-106 contacts →

Strong evidence

“Our practice is focused primarily on probate, estate planning, and estate litigation.”

Source: RevenueBase Database · checked Sep 20, 2026
17Strong evidenceNew York, NY, United StatesHQ checked Sep 20, 20261-106 contacts →

Strong evidence

“RK Law PC advises clients in the areas of Probate, Estate & Trust Administration, Estate Planning, Contested and Uncontested Guardianship matters, Will Contests, Contested…”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

“Michael J.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceNew York, United StatesHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

“Lawrence Chaifetz is principal and partner at Chaifetz and Chaifetz, LLC.”

Source: RevenueBase Database · checked Sep 20, 2026
21Strong evidenceNew York, NY, United StatesHQ checked Sep 20, 20261-105 contacts →

Strong evidence

“At Peller and Company, it is our mission to simplify the worlds of tax planning, estate planning, and retirement planning for all of our clients and friends, by navigating the…”

Source: RevenueBase Database · checked Sep 20, 2026
22Strong evidenceNew York, NY, United StatesHQ checked Sep 20, 20261-105 contacts →

Strong evidence

“The Village Law Firm is a boutique law firm that caters to the estate planning needs of families and professionals in New York City and those with international estate planning…”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

“Our firm was founded in 1993 by Clifford A.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 23 of 132 estate planning service providers based in New York, United States

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Estate planning service providers based in New York, United States at a glance

As of Sep 20, 2026
52.8%Verified-email coverage
5.2Average contacts per company
1-10Median size (employees)
100.0%Largest-city concentration · New York
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
107
11-50
22
51-200
3

Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 132 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 estate planning service providers, 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 New York, United States whose own description of what they do matches “estate planning service providers”. 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 planning service providers), 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 planning service providers, and records with no verified work email. Companies headquartered outside New York 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, 366 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 planning service providers 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 estate planning service providers, 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 planning service providers are there based in New York, United States?

RevenueBase identified 132 estate planning service providers headquartered in New York, 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?

Cassin & Cassin LLP, headquartered in New York, tops this list with the largest team on record.

Which city has the most estate planning service providers?

New York leads with 132 headquartered companies, followed by Houston (87) and San Diego (79).

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 366 verified decision-maker contacts tracked across these 132 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.