Company lists · Data refreshed September 2026

Top 14 Tax compliance services based in New York, United States

RevenueBase identified 57 tax compliance services headquartered in New York, United States as of September 2026 and tracks 2,513 professional contacts across them, including 90 with verified work emails. Houston is the largest hub.

This list covers tax compliance services 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 22, 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 22, 2026 86% judged on-target in blind review
57Companies
2,513Contacts tracked
90Verified emails
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The 14 largest tax compliance services based in New York, United States

Ranked by team size
Top 14 of 57 tax compliance services based in New York, United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to tax compliance services: 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 evidenceNew York, NY, United StatesHQ checked Sep 22, 202611-5074 contacts →

Strong evidence

“Zamp provides real sales tax relief, not just software-we completely handle your sales tax compliance so you don't have to.”

Source: RevenueBase Database · checked Sep 22, 2026
2Strong evidenceNew York, NY, United StatesHQ checked Sep 22, 202611-5022 contacts →

Strong evidence

“With offices in New York City, Philadelphia and Stamford, Evolved is a fast-growing tax compliance and business advisory firm that serves startups, small businesses, private…”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 20261-1020 contacts →

Indirect evidence

“Established in March 2001, Protax Consulting Services specializes in international individual U.S.”

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 202611-5013 contacts →

Indirect evidence

“Since 1970, we have worked with thousands of individuals and small businesses.”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 20261-1012 contacts →

Indirect evidence

“For over 40 years, C.”

Source: RevenueBase Database · checked Sep 22, 2026
6Partial evidenceNew York, United StatesHQ checked Sep 22, 202611-505 contacts →

Partial evidence

“Steven Zelin, CPA provides the highest quality tax and accounting services to individuals, small businesses and non-profit organizations.”

Source: RevenueBase Database · checked Sep 22, 2026
7Partial evidenceNew York, NY, United StatesHQ checked Sep 22, 20261-105 contacts →

Partial evidence

“SMC International Group Ltd (SMCI) considers itself to be your dedicated financial compliance solution partner.”

Source: RevenueBase Database · checked Sep 22, 2026
8Partial evidenceNew York, United StatesHQ checked Sep 22, 20261-104 contacts →

Partial evidence

“Welcome to MP Taxes Online, your go-to solution for tax preparation, business accounting, and financial guidance.”

Source: RevenueBase Database · checked Sep 22, 2026
9Partial evidenceNew York, NY, United StatesHQ checked Sep 22, 20261-104 contacts →

Partial evidence

“Since 2010, Gillon Tax Advisors has been a trusted advisor for companies ranging from startups to multi-billion-dollar multinational corporations.”

Source: RevenueBase Database · checked Sep 22, 2026
10Strong evidenceNew York, NY, United StatesHQ checked Sep 22, 202611-503 contacts →

Strong evidence

“At Sales Tax Helper, we empower businesses to navigate sales tax complexities with confidence-turning audits, disputes, and compliance challenges into manageable solutions.”

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 202611-503 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
12Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
14Partial evidenceNew York, NY, United StatesHQ checked Sep 22, 20261-103 contacts →

Partial evidence

Tax Preparation, Audit Representation, Retirement Planning & More!”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 14 of 57 tax compliance services based in New York, United States

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Tax compliance services based in New York, United States at a glance

As of Sep 22, 2026
3.6%Verified-email coverage
44.1Average contacts per company
1-10Median size (employees)
112.3%Largest-city concentration · Houston
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
45
11-50
10
51-200
2

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 57 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 tax compliance services, 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 “tax compliance services”. 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 tax compliance services), 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 tax compliance services, 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, 90 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 22, 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.

Tax compliance services 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 tax compliance services, 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 tax compliance services are there based in New York, United States?

RevenueBase identified 57 tax compliance services 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?

ZAMP, headquartered in New York, tops this list with the largest team on record.

Which city has the most tax compliance services?

Houston leads with 64 headquartered companies, followed by New York (57) and Miami (38).

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 90 verified decision-maker contacts tracked across these 57 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 22, 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.