Company lists · Data refreshed September 2026

Top 25 Advisory and outsourcing services based in Boston, United States

Name: Advisory and outsourcing services based in Boston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 362 companies tracked

RevenueBase identified 362 advisory and outsourcing services headquartered in Boston, United States as of September 2026 and tracks 5,928 professional contacts across them, including 3,084 with verified work emails. Across the United States, New York is the largest hub for this category (1,824 companies); Boston has 362.

This list covers advisory and outsourcing services 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 23, 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 23, 2026 86% judged on-target in blind review

362Companies

5,928Contacts tracked

3,084Verified emails

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The 25 largest advisory and outsourcing services based in Boston, United States

Ranked by team size

Top 25 of 362 advisory and outsourcing services based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to advisory and outsourcing 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	CFGI	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	501-1,000	1,063 contacts →
	Partial evidence “As a leading global accounting and business advisory firm, CFGI provides solutions to solve clients’ most complex problems, without the restrictions created by auditor…” Source: RevenueBase Database · checked Sep 23, 2026
2	Tanisha Systems, INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	1,001-5,000	844 contacts →
	Indirect evidence “Tanisha Systems, founded in 2002 in Massachusetts-USA, is a leading provider of Custom Application Development and end-to-end IT Services to clients globally.” Source: RevenueBase Database · checked Sep 23, 2026
3	Wolf & Company, P.C	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	201-500	558 contacts →
	Indirect evidence “Wolf & Company P.C.” Source: RevenueBase Database · checked Sep 23, 2026
4	Drummond Advisors	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	201-500	322 contacts →
	Partial evidence “Drummond Advisors provides global consulting services to companies focusing on accounting, tax, legal and business development.” Source: RevenueBase Database · checked Sep 23, 2026
5	Capstone Partners	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	51-200	276 contacts →
	Partial evidence “For over 20 years, Capstone Partners has been a trusted advisor to leading middle market companies, offering a fully integrated range of investment banking and financial advisory…” Source: RevenueBase Database · checked Sep 23, 2026
6	Williamsmarston	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	201-500	259 contacts →
	Partial evidence “WilliamsMarston is a national leader in complex accounting, tax, technology, transaction and valuation advisory services.” Source: RevenueBase Database · checked Sep 23, 2026
7	Radius Global Growth Experts	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	501-1,000	244 contacts →
	Indirect evidence “Radius was acquired by VISTRA and has been re-branded to VISTRA International Expansion.” Source: RevenueBase Database · checked Sep 23, 2026
8	Maitri Services	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	51-200	158 contacts →
	Indirect evidence “Maitri is a professional services company catering to startups and small to mid-market businesses.” Source: RevenueBase Database · checked Sep 23, 2026
9	Progress Partners	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	11-50	110 contacts →
	Partial evidence “Progress Partners is a Boston and New York-based corporate advisory firm that works with buyers and sellers of emerging growth companies to complete M&A or private placement…” Source: RevenueBase Database · checked Sep 23, 2026
10	Alan Gray	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	51-200	99 contacts →
	Partial evidence “Alan Gray LLC was established in 1988 as a claims and audit advisory firm, and over the years has built a reputation as a cost effective, reliable and trusted resource to those…” Source: RevenueBase Database · checked Sep 23, 2026
11	Walter Shuffain	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	51-200	99 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 23, 2026
12	Cresa Boston	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	51-200	82 contacts →
	Partial evidence “Cresa is the world’s only global commercial real estate advisory firm that exclusively represents occupiers and specializes in the delivery of fully integrated real estate…” Source: RevenueBase Database · checked Sep 23, 2026
13	Xperttech INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	51-200	77 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 23, 2026
14	Ilead Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	51-200	54 contacts →
	Indirect evidence “iLEAD Group is a professional services group that has incubated includes several business divisions, including:* iLEAD Consulting is a business consulting and IT development firm…” Source: RevenueBase Database · checked Sep 23, 2026
15	Versailles Group, LTD	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	11-50	49 contacts →
	Indirect evidence “Founded in 1987, Versailles Group is a boutique investment banking firm specializing in mergers, acquisitions, divestitures, private placements, and fairness opinions.” Source: RevenueBase Database · checked Sep 23, 2026
16	Cbiz & MHM NEW England	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	201-500	43 contacts →
	Partial evidence “CBIZ & MHM New England (formerly CBIZ Tofias) is part of the 12th largest accounting, tax, and advisory services provider in the U.S.” Source: RevenueBase Database · checked Sep 23, 2026
17	Floyd Advisory LLC	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	11-50	42 contacts →
	Partial evidence “FLOYD ADVISORY is a consulting firm providing financial and accounting expertise in areas of SEC reporting, transaction advisory, investigations and compliance, valuation and…” Source: RevenueBase Database · checked Sep 23, 2026
18	Credfino	Indirect evidence	Boston, United StatesHQ checked Sep 23, 2026	11-50	39 contacts →
	Indirect evidence “Credfino helps Accounting/Tax Firms grow and scale through remote staffing and consulting.” Source: RevenueBase Database · checked Sep 23, 2026
19	Fairmont Consulting Group	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	11-50	37 contacts →
	Partial evidence “Fairmont Consulting Group is a Boston-based firm focused on due diligence and strategic advisory services for clients active in aerospace, defense, government services, and the…” Source: RevenueBase Database · checked Sep 23, 2026
20	LABUR	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	11-50	37 contacts →
	Indirect evidence “LABUR brings technology and business together through sound advice, skillful delivery, and selective leadership search.” Source: RevenueBase Database · checked Sep 23, 2026
21	Raphael And Raphael LLP	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	11-50	35 contacts →
	Indirect evidence “Much has changed since Helmer Raphael founded Raphael and Raphael more than 60 years ago.” Source: RevenueBase Database · checked Sep 23, 2026
22	Parthenon-Ey	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	n/a	34 contacts →
	Indirect evidence “Parthenon-EY is a management consulting company based out of 50 ROWES WHARF, Boston, Massachusetts, United States.” Source: RevenueBase Database · checked Sep 23, 2026
23	Driven Insights	Indirect evidence	Boston, United StatesHQ checked Sep 23, 2026	11-50	33 contacts →
	Indirect evidence “Driven Insights provides finance and accounting that scales with client growth and complexity.” Source: RevenueBase Database · checked Sep 23, 2026
24	NRS Global Partners, LLC	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	51-200	28 contacts →
	Partial evidence “A leading Human Resource Advisory firm providing senior - level executive search and consulting services to clients primarily in the Healthcare, Pharmaceutical / Life Sciences and…” Source: RevenueBase Database · checked Sep 23, 2026
25	Darmody, Merlino & Co., LLP	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	11-50	26 contacts →
	Indirect evidence “Darmody offers a wide range of services to our individual and business clients.” Source: RevenueBase Database · checked Sep 23, 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: advisory and outsourcing services. 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 advisory and outsourcing services.
Partial evidence: Its own public description names part of advisory and outsourcing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name advisory and outsourcing services. 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 362 advisory and outsourcing services based in Boston, United States

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Advisory and outsourcing services based in Boston, United States at a glance

As of Sep 23, 2026

52.0%Verified-email coverage

16.4Average contacts per company

1-10Median size (employees)

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

250

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured across the whole United States list rather than for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 362 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 advisory and outsourcing 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 Boston, United States whose own description of what they do matches “advisory and outsourcing 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 advisory and outsourcing 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 advisory and outsourcing services, 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, 3,084 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 23, 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.

Advisory and outsourcing 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 advisory and outsourcing 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 advisory and outsourcing services are there based in Boston, United States?

RevenueBase identified 362 advisory and outsourcing services 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?

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

Which city in the United States has the most advisory and outsourcing services?

New York leads the United States with 1,824 headquartered companies, followed by Houston (804) and Chicago (737). Boston has 362.

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 3,084 verified decision-maker contacts tracked across these 362 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 23, 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.