Company lists · Data refreshed September 2026

Top 25 Merger integration consultants worldwide

Name: Merger integration consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 24,249 companies tracked

RevenueBase identified 24,249 merger integration consultants worldwide as of September 2026 and tracks 176,807 professional contacts across them, including 45,919 with verified work emails. The United States is the largest market and London the largest hub.

This list covers merger integration consultants worldwide, 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. Country and city lists for merger integration consultants follow the table.

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

24,249Companies

176,807Contacts tracked

45,919Verified emails

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The 25 largest merger integration consultants worldwide

Ranked by team size

Top 25 of 24,249 merger integration consultants worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to merger integration consultants: 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	Wavestone	Indirect evidence	100-101 Terrasse Boieldieu, FranceHQ checked Sep 20, 2026	1,001-5,000	6,190 contacts →
	Indirect evidence “Wavestone is a leading consulting firm operating at the intersection of business and technology.” Source: RevenueBase Database · checked Sep 20, 2026
2	Accenture Strategy & Consulting	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	5,001-10,000	5,514 contacts →
	Indirect evidence “Accenture Strategy combines deep industry expertise, advanced analytics capabilities and human-led design methodologies that enable clients to act with speed and confidence.” Source: RevenueBase Database · checked Sep 20, 2026
3	KCA Deutag	Indirect evidence	Portlethen, United KingdomHQ checked Sep 20, 2026	10001+	4,109 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
4	Monitor Deloitte	Indirect evidence	United StatesHQ checked Sep 20, 2026	5,001-10,000	3,116 contacts →
	Indirect evidence “To navigate the future with confidence, organizations need to make and act upon the right choices: clear, timely and inspirational choices that deliver growth in a dynamic…” Source: RevenueBase Database · checked Sep 20, 2026
5	Baringa	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1,001-5,000	2,179 contacts →
	Indirect evidence “Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Source: RevenueBase Database · checked Sep 20, 2026
6	North Highland	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,792 contacts →
	Indirect evidence “North Highland helps businesses move from strategy to reality, taking a pragmatic and practical approach to build solutions that work and create impact that lasts.” Source: RevenueBase Database · checked Sep 20, 2026
7	Trace3	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,345 contacts →
	Indirect evidence “Trace3 delivers business transformation.” Source: RevenueBase Database · checked Sep 20, 2026
8	W3global	Indirect evidence	Frisco, TX, United StatesHQ checked Sep 20, 2026	501-1,000	1,149 contacts →
	Indirect evidence “W3Global is a leading provider of end-to-end consulting services, empowering businesses to achieve their strategic goals and optimize their operations.” Source: RevenueBase Database · checked Sep 20, 2026
9	Square Management	Indirect evidence	Neuilly Sur Seine, FranceHQ checked Sep 20, 2026	501-1,000	719 contacts →
	Indirect evidence “Square Management est un cabinet de conseil spécialisé en stratégie et organisation qui accompagne ses clients dans l’anticipation, la conception et la réalisation de leurs…” Source: RevenueBase Database · checked Sep 20, 2026
10	Mobilecomm Professionals, INC	Indirect evidence	Richardson, TX, United StatesHQ checked Sep 20, 2026	501-1,000	706 contacts →
	Indirect evidence “MobileComm is now fully integrated with UST.” Source: RevenueBase Database · checked Sep 20, 2026
11	デロイトトーマツコンサルティング(合同)	Indirect evidence	千代田区, JapanHQ checked Sep 20, 2026	501-1,000	696 contacts →
	Indirect evidence “is a management consulting company based out of, Japan.” Source: RevenueBase Database · checked Sep 20, 2026
12	Point B	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	501-1,000	656 contacts →
	Indirect evidence “At Point B, we help organizations adapt and thrive in a world that refuses to stand still.” Source: RevenueBase Database · checked Sep 20, 2026
13	Julhiet Sterwen	Indirect evidence	Neuilly Sur Seine, FranceHQ checked Sep 20, 2026	501-1,000	551 contacts →
	Indirect evidence “julhiet sterwen is a key player in management, human resources and operational consulting.” Source: RevenueBase Database · checked Sep 20, 2026
14	Oresys	Partial evidence	Paris, FranceHQ checked Sep 20, 2026	201-500	458 contacts →
	Partial evidence “ORESYS, a major player in the management and organisation consultancy sector, works with corporate clients to support them in their change projects and improve their performance.” Source: RevenueBase Database · checked Sep 20, 2026
15	Synergy Group	Indirect evidence	Canberra, AustraliaHQ checked Sep 20, 2026	201-500	425 contacts →
	Indirect evidence “Challengers at heart, we are pragmatic explorers seeking to uncover what could be, so it can be.” Source: RevenueBase Database · checked Sep 20, 2026
16	Sendero	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 20, 2026	201-500	420 contacts →
	Indirect evidence “Sendero is a management consulting firm that optimizes technology, improves operations, advances workforce productivity, and enhances customer experience-all to deliver tangible…” Source: RevenueBase Database · checked Sep 20, 2026
17	The Power Agency	Indirect evidence	Louisville, KY, United StatesHQ checked Sep 20, 2026	51-200	420 contacts →
	Indirect evidence “We are proud to announce that PowerScoppechio is now operating as TogetherWith.” Source: RevenueBase Database · checked Sep 20, 2026
18	London Consulting Group	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	201-500	384 contacts →
	Indirect evidence “At London Consulting Group, we work closely with your team to analyze your processes, develop and implement solutions that significantly optimize profitability and train your…” Source: RevenueBase Database · checked Sep 20, 2026
19	Tokio Marine Life Insurance Malaysia BHD	Indirect evidence	Jalan Todak 5, MalaysiaHQ checked Sep 20, 2026	201-500	376 contacts →
	Indirect evidence “Tokio Marine Life Insurance Malaysia Bhd is a management consulting company based out of 11 Bangunan Tm Asia Life, Jalan Todak 5, Malaysia.” Source: RevenueBase Database · checked Sep 20, 2026
20	Clarkston Consulting	Indirect evidence	Durham, NC, United StatesHQ checked Sep 20, 2026	201-500	365 contacts →
	Indirect evidence “Clarkston Consulting offers the full spectrum of strategy, operations, implementation, and managed services with a change-focused, data-driven approach for life sciences, consumer…” Source: RevenueBase Database · checked Sep 20, 2026
21	Tier1 Performance	Indirect evidence	Covington, KY, United StatesHQ checked Sep 20, 2026	201-500	341 contacts →
	Indirect evidence “At TiER1 Performance, we partner with leaders to turn bold strategy into real impact-by aligning people, systems, and purpose.” Source: RevenueBase Database · checked Sep 20, 2026
22	Eagle Hill Consulting	Partial evidence	Arlington, VA, United StatesHQ checked Sep 20, 2026	201-500	337 contacts →
	Partial evidence “Unconventional, woman-owned, and award-winning-at Eagle Hill, we break away from the expected and apply the best tools and methodologies of larger consultancies in the nimble…” Source: RevenueBase Database · checked Sep 20, 2026
23	Colombus Consulting	Indirect evidence	Paris, FranceHQ checked Sep 20, 2026	201-500	321 contacts →
	Indirect evidence “Colombus Consulting is a management consulting firm specialized in business change and complex project management.” Source: RevenueBase Database · checked Sep 20, 2026
24	Optimus SBR	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	201-500	320 contacts →
	Indirect evidence “Optimus SBR is Canada’s largest independent management consulting firm.” Source: RevenueBase Database · checked Sep 20, 2026
25	Magellan Consulting	Indirect evidence	Paris, FranceHQ checked Sep 20, 2026	201-500	313 contacts →
	Indirect evidence “Magellan Consulting devient Magellan!” Source: RevenueBase Database · checked Sep 20, 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: merger integration consultants. 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 merger integration consultants.
Partial evidence: Its own public description names part of merger integration consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name merger integration consultants. 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 24,249 merger integration consultants worldwide

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Merger integration consultants worldwide at a glance

As of Sep 20, 2026

26.0%Verified-email coverage

7.3Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

18,751

11-50

4,237

51-200

859

201-500

195

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 merger integration consultants, 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.
Coverage: Every country. Country and city lists for merger integration consultants are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “merger integration consultants”. 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 merger integration consultants), 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 merger integration consultants, and records with no verified work email.
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, 45,919 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.

Merger integration consultants by location

94 lists · largest first

Every Merger integration consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 merger integration consultants, 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 merger integration consultants are there worldwide?

RevenueBase identified 24,249 merger integration consultants worldwide 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?

Wavestone, headquartered in La Defense, tops this list with the largest team on record.

Which country has the most merger integration consultants?

The United States leads with 5,346 companies, followed by the United Kingdom (1,690) and France (1,572). Every merger integration consultants list by country and city is linked on this page.

Which city has the most merger integration consultants?

London leads with 604 headquartered companies, followed by Paris (496) and Sao Paulo (324).

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 45,919 verified decision-maker contacts tracked across these 24,249 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.