Company lists · Data refreshed September 2026

Top 16 Tax consulting firms based in Boston, United States

RevenueBase identified 34 tax consulting firms headquartered in Boston, United States as of September 2026 and tracks 662 professional contacts across them, including 338 with verified work emails. New York is the largest hub.

This list covers tax consulting firms headquartered in Boston, 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 6, 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 6, 2026 86% judged on-target in blind review
34Companies
662Contacts tracked
338Verified emails
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The 16 largest tax consulting firms based in Boston, United States

Ranked by team size
Top 16 of 34 tax consulting firms based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to tax consulting firms: 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 evidenceBoston, MA, United StatesHQ checked Sep 6, 2026201-500322 contacts →

“Drummond Advisors provides global consulting services to companies focusing on accounting, tax, legal and business development.”

Source: company website · checked Sep 6, 2026
2Indirect evidenceBoston, MA, United StatesHQ checked Sep 6, 202651-20099 contacts →

“Walter Shuffain is known for its commitment to helping private businesses and the affluent reach their ideals in the Boston and New England area.”

Source: company website · checked Sep 6, 2026
3Partial evidenceBoston, MA, United StatesHQ checked Sep 6, 2026201-50043 contacts →

“CBIZ & MHM New England (formerly CBIZ Tofias) is part of the 12th largest accounting, tax, and advisory services provider in the U.S.”

Source: company website · checked Sep 6, 2026
4Indirect evidenceBoston, MA, United StatesHQ checked Sep 6, 202611-5035 contacts →

“Much has changed since Helmer Raphael founded Raphael and Raphael more than 60 years ago.”

Source: company website · checked Sep 6, 2026
5Partial evidenceBoston, MA, United StatesHQ checked Sep 6, 202611-5023 contacts →

“At Seaport Tax, we specialize in navigating the tax complexities that come with a financially complex life.”

Source: company website · checked Sep 6, 2026
6Indirect evidenceBoston, MA, United StatesHQ checked Sep 6, 202611-5023 contacts →

“Our firm offers a wide range of services to our individual and business clients.”

Source: company website · checked Sep 6, 2026
7Strong evidenceBoston, MA, United StatesHQ checked Sep 6, 202611-5020 contacts →

“Daigle & Associates LLP specializes in providing tax consulting, tax compliance and business advisory services to affluent families, corporate executives, entrepreneurs, private…”

Source: company website · checked Sep 6, 2026
8Partial evidenceBoston, MA, United StatesHQ checked Sep 6, 20261-1012 contacts →

“Since 1993 my group of skilled associates and I have been helping clients make the right financial, tax and business decisions.”

Source: company website · checked Sep 6, 2026
9Partial evidenceBoston, MA, United StatesHQ checked Sep 6, 20261-109 contacts →

“Complex Consulting is a cutting-edge accounting firm redefining financial services with a comprehensive range of solutions for businesses and individuals.”

Source: company website · checked Sep 6, 2026
10Partial evidenceBoston, MA, United StatesHQ checked Sep 6, 20261-108 contacts →

“McMahon & Tivnan, PC represents individuals, estates and businesses with federal and state tax issues from audit through collection.”

Source: company website · checked Sep 6, 2026
11Indirect evidenceBoston, MA, United StatesHQ checked Sep 6, 20261-108 contacts →

“At Freedomfolio, we help entrepreneurs keep more of what they earn.”

Source: company website · checked Sep 6, 2026
12Strong evidenceBoston, MA, United StatesHQ checked Sep 6, 202611-506 contacts →

“GAGNONtax is a tax-only consulting firm committed to serving the needs of our clients with our unique combination of technical expertise, integrity and flexibility.”

Source: company website · checked Sep 6, 2026
13Partial evidenceBoston, MA, United StatesHQ checked Sep 6, 20261-105 contacts →

“Independent Consulting.”

Source: company website · checked Sep 6, 2026
14Partial evidenceBoston, MA, United StatesHQ checked Sep 6, 20261-102 contacts →

Tax, business, estate and real property attorneys providing planning, implementation, and compliance services to closely-held businesses and their owners, financially independent…”

Source: company website · checked Sep 6, 2026
15Partial evidenceBoston, MA, United StatesHQ checked Sep 6, 20261-102 contacts →

“Independent firm specializing in providing individual and small businesses tax and accounting services, Just In Time.”

Source: company website · checked Sep 6, 2026
16Strong evidenceBoston, MA, United StatesHQ checked Sep 6, 20261-101 contacts →

“Accounting firm providing tax and consulting services such as business valuations in the context of divorce, financial reporting, gift and estate taxation, and dissenting…”

Source: company website · checked Sep 6, 2026

Showing 16 of 34 tax consulting firms based in Boston, United States

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Tax consulting firms based in Boston, United States at a glance

As of Sep 6, 2026
51.1%Verified-email coverage
19.5Average contacts per company
1-10Median size (employees)
735.3%Largest-city concentration · New York
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
22
11-50
8
51-200
2
201-500
2

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 Boston, over 34 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 consulting firms, 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 Boston, United States whose own description of what they do matches “tax consulting firms”. 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 consulting firms), 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 consulting firms, and records with no verified work email. Companies headquartered outside Boston 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, 338 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 6, 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 consulting firms 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 consulting firms, 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 consulting firms are there based in Boston, United States?

RevenueBase identified 34 tax consulting firms headquartered in Boston, 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?

Drummond Advisors, headquartered in Boston, tops this list with the largest team on record.

Which city has the most tax consulting firms?

New York leads with 250 headquartered companies, followed by Houston (200) and Miami (130).

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 338 verified decision-maker contacts tracked across these 34 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 6, 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.