Company lists · Data refreshed September 2026

Top 25 Business improvement consulting firms based in Boston, United States

Name: Business improvement consulting firms 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 196 companies tracked

RevenueBase identified 196 business improvement consulting firms headquartered in Boston, United States as of September 2026 and tracks 5,081 professional contacts across them, including 2,533 with verified work emails. New York is the largest hub.

This list covers business improvement 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 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

196Companies

5,081Contacts tracked

2,533Verified emails

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The 25 largest business improvement consulting firms based in Boston, United States

Ranked by team size

Top 25 of 196 business improvement consulting firms 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 business improvement 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	L.E.K. Consulting	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	1,001-5,000	4,093 contacts →
	Indirect evidence “L.E.K.” Source: RevenueBase Database · checked Sep 23, 2026
2	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
3	Vantage Partners	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	51-200	122 contacts →
	Partial evidence “Vantage Partners is a consulting and training firm that helps companies innovate more quickly, execute with greater discipline, and collaborate more effectively, for sustained…” Source: RevenueBase Database · checked Sep 23, 2026
4	Advanced Management Services, Inc. AMS	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	51-200	27 contacts →
	Partial evidence “Delivering results and business performance by integrating Management Consulting Solutions, Professional Development Training Courses, and Executive & Leadership Coaching.” Source: RevenueBase Database · checked Sep 23, 2026
5	NEW Markets Advisors	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	11-50	17 contacts →
	Partial evidence “Since our beginnings in 2009, New Markets Advisors has been a leading boutique consulting firm focused on the realm of innovation strategy and capabilities.” Source: RevenueBase Database · checked Sep 23, 2026
6	Welsh Consulting	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	11-50	17 contacts →
	Partial evidence “Welsh Consulting, located in the heart of Boston’s Financial District, is an energetic IT consulting firm providing IT strategy, support and project-related services to small and…” Source: RevenueBase Database · checked Sep 23, 2026
7	Creo Advisors LLC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	11-50	13 contacts →
	Indirect evidence “Your Partner in Value Creation We partner with ambitious Boards, Private Equity Firms, and Management teams seeking to achieve superior performance.” Source: RevenueBase Database · checked Sep 23, 2026
8	Roundtable Strategy Advisors	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	51-200	13 contacts →
	Partial evidence “We are seasoned professionals within the consulting field and former C-Suite executives who know what it takes to get the job done efficiently and on-time.” Source: RevenueBase Database · checked Sep 23, 2026
9	Burnham Rosen Group	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	11-50	12 contacts →
	Partial evidence “Burnham Rosen Group (BRG) is a global leadership training and management consulting firm that brings to its clients a multi-disciplinary approach blending business strategy…” Source: RevenueBase Database · checked Sep 23, 2026
10	Aadmi Consulting	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	11-50	12 contacts →
	Indirect evidence “Aadmi is a full-service firm committed to helping you develop a sustainable expansion strategy that will enhance your business and foster its growth.” Source: RevenueBase Database · checked Sep 23, 2026
11	MB LAW Firm Consulting, LLC	Partial evidence	Boston, United StatesHQ checked Sep 23, 2026	1-10	10 contacts →
	Partial evidence “MB Law Firm Consulting works with small to mid-sized law firms on a project or long-term basis to identify and implement efficiencies for growth and succession.” Source: RevenueBase Database · checked Sep 23, 2026
12	Carlisle & Company, LLC	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	51-200	7 contacts →
	Partial evidence “Carlisle is a member of Ducker Carlisle, a global consulting and M&A advisory firm with an unrivalled continuum of insights, benchmarking and strategy solutions that optimize…” Source: RevenueBase Database · checked Sep 23, 2026
13	Derby Management	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	1-10	7 contacts →
	Partial evidence “We're a hands-on management consulting company providing the value of deep expertise in improving sales productivity by 25% in less than a year.” Source: RevenueBase Database · checked Sep 23, 2026
14	Auribus Consulting	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	1-10	6 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 23, 2026
15	Macresco	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	1-10	6 contacts →
	Partial evidence “Macresco is a management-consulting firm dedicated to helping organizations achieve transformative results.” Source: RevenueBase Database · checked Sep 23, 2026
16	Grisco Consulting, LLC	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	1-10	6 contacts →
	Partial evidence “Grisco Consulting, LLC is a Growth, Strategy, Marketing and Sales Consultancy that works with B2B and B2C organizations of all sizes to drive innovation by providing growth…” Source: RevenueBase Database · checked Sep 23, 2026
17	Goviably	Indirect evidence	Boston, United StatesHQ checked Sep 23, 2026	1-10	5 contacts →
	Indirect evidence “GoViably helps growing businesses reduce operational friction, strengthen leadership alignment, improve workforce resilience, and modernize sustainably.” Source: RevenueBase Database · checked Sep 23, 2026
18	Business Improvement Group, LLC	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	1-10	4 contacts →
	Partial evidence “DIAGNOSE->SCOPE->IMPLEMENT->TEACH->HAND OVER Business Improvement Group, LLC is a team of senior operations executives who help you fix operational problems and improve quality…” Source: RevenueBase Database · checked Sep 23, 2026
19	ASW Private Lending, LLC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	1-10	4 contacts →
	Indirect evidence “We help our clients transform their business and reach their full potential.” Source: RevenueBase Database · checked Sep 23, 2026
20	Open Seas Advisory	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	1-10	4 contacts →
	Indirect evidence “We specialize in growing and guiding companies to sustainable profitability through revenue and cost channel optimization.” Source: RevenueBase Database · checked Sep 23, 2026
21	Clear Path Management Consulting	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	1-10	4 contacts →
	Partial evidence “Clear Path Management Consulting partners with entrepreneurs, owners, and organizations to strengthen core values and improve performance.” Source: RevenueBase Database · checked Sep 23, 2026
22	Dorian Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	1-10	4 contacts →
	Indirect evidence “At Dorian Group our clients are experts with specialized knowledge and years of experience in a particular field.” Source: RevenueBase Database · checked Sep 23, 2026
23	Carroll Communications Group	Indirect evidence	Boston, United StatesHQ checked Sep 23, 2026	1-10	3 contacts →
	Indirect evidence “At Carroll Communications Group, our focus is on empowering small to medium-sized businesses (SMBs) with business development strategies that drive substantial growth.” Source: RevenueBase Database · checked Sep 23, 2026
24	Hypotenuse Consulting	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	1-10	3 contacts →
	Partial evidence “Hypotenuse Consulting is a marketing consultancy helping companies in services industries define growth strategies, build winning customer experiences, and accelerate results…” Source: RevenueBase Database · checked Sep 23, 2026
25	Bosunpartners	Indirect evidence	Boston, United StatesHQ checked Sep 23, 2026	1-10	3 contacts →
	Indirect evidence “Diverse experiences; as an expert insider strategist + operator + financier From technology disrupters to scale public businesses to PE to private multi-generational businesses…” 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: business improvement consulting firms. 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 business improvement consulting firms.
Partial evidence: Its own public description names part of business improvement consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business improvement consulting firms. 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 196 business improvement consulting firms based in Boston, United States

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Business improvement consulting firms based in Boston, United States at a glance

As of Sep 23, 2026

49.9%Verified-email coverage

25.9Average contacts per company

1-10Median size (employees)

338.3%Largest-city concentration · New York

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

164

11-50

51-200

201-500

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 196 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 business improvement 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 “business improvement 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 business improvement 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 business improvement 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, 2,533 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.

Business improvement 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 business improvement 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 business improvement consulting firms are there based in Boston, United States?

RevenueBase identified 196 business improvement 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?

L.E.K. Consulting, headquartered in Boston, tops this list with the largest team on record.

Which city has the most business improvement consulting firms?

New York leads with 663 headquartered companies, followed by Chicago (429) and Atlanta (426).

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 2,533 verified decision-maker contacts tracked across these 196 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.