Company lists · Data refreshed September 2026

Top 25 Complex deal management consultants worldwide

Name: Complex deal management consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 12,111 companies tracked

RevenueBase identified 12,111 complex deal management consultants worldwide as of September 2026 and tracks 77,121 professional contacts across them, including 15,879 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers complex deal management 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 27, 2026. Country and city lists for complex deal management 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 27, 2026 86% judged on-target in blind review

12,111Companies

77,121Contacts tracked

15,879Verified emails

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The 25 largest complex deal management consultants worldwide

Ranked by team size

Top 25 of 12,111 complex deal management consultants worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to complex deal management 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	Management Solutions	Partial evidence	Madrid, SpainHQ checked Sep 27, 2026	1,001-5,000	4,468 contacts →
	Partial evidence “Management Solutions is a leading provider of business consulting services for regulated industries.” Source: RevenueBase Database · checked Sep 27, 2026
2	Baringa	Indirect evidence	London, United KingdomHQ checked Sep 27, 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 27, 2026
3	J.S. Held LLC	Indirect evidence	Jericho, NY, PalestineHQ checked Sep 27, 2026	1,001-5,000	1,954 contacts →
	Indirect evidence “J.S.” Source: RevenueBase Database · checked Sep 27, 2026
4	The Vertex Companies LLC	Strong evidence	New York, NY, United StatesHQ checked Sep 27, 2026	501-1,000	765 contacts →
	Strong evidence “The Vertex Companies, LLC is a global consulting firm that provides strategic advisory, project management, and dispute resolution services for organizations that face complex…” Source: RevenueBase Database · checked Sep 27, 2026
5	SEI	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 27, 2026	501-1,000	618 contacts →
	Partial evidence “SEI is a management consulting firm delivering fresh perspectives and reliable results.” Source: RevenueBase Database · checked Sep 27, 2026
6	Solomonedwards	Partial evidence	Wayne, PA, United StatesHQ checked Sep 27, 2026	1,001-5,000	557 contacts →
	Partial evidence “For more than 25 years, SolomonEdwards has empowered organizations to tackle common and complex business challenges through strategic advisory, technical advocacy, and hands-on…” Source: RevenueBase Database · checked Sep 27, 2026
7	DLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	201-500	546 contacts →
	Partial evidence “DLC is an award-winning industry leader in Finance, Accounting, Program Management & Process Improvement Consulting.” Source: RevenueBase Database · checked Sep 27, 2026
8	Technology Control Company شركة تحكم التقنية	Partial evidence	Riyadh, Saudi ArabiaHQ checked Sep 27, 2026	501-1,000	433 contacts →
	Partial evidence “Technology Control Company Founded in 2008 and headquartered in Riyadh, Saudi Arabia - Technology Control Company provides its’ clients a complete consulting expertise.We offer a…” Source: RevenueBase Database · checked Sep 27, 2026
9	Protiviti Italia	Indirect evidence	Milano, ItalyHQ checked Sep 27, 2026	10001+	405 contacts →
	Indirect evidence “Protiviti, parte del gruppo Robert Half, offre a livello globale servizi di consulenza direzionale per aiutare le aziende ad affrontare con fiducia le sfide e i cambiamenti…” Source: RevenueBase Database · checked Sep 27, 2026
10	IBM Promontory	Strong evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	501-1,000	403 contacts →
	Strong evidence “IBM Promontory is a global leader in strategy, risk management, and compliance consulting.#IBMConsulting” Source: RevenueBase Database · checked Sep 27, 2026
11	Weaver Consultants Group	Strong evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	201-500	382 contacts →
	Strong evidence “From its inception in 1991, Weaver Consultants Group has been founded upon the tenets of attentive and responsive customer service, strong project management, and solid internal…” Source: RevenueBase Database · checked Sep 27, 2026
12	The GAP Partnership	Strong evidence	Berkhamsted, United KingdomHQ checked Sep 27, 2026	201-500	359 contacts →
	Strong evidence “We are a global management consultancy specialising in negotiation.” Source: RevenueBase Database · checked Sep 27, 2026
13	Deep Water Point & Associates	Indirect evidence	Annapolis, MD, United StatesHQ checked Sep 27, 2026	201-500	350 contacts →
	Indirect evidence “Deep Water Point & Associates is composed of industry veterans and government experts who dedicate their expertise to maximize our clients’ competitive edge.” Source: RevenueBase Database · checked Sep 27, 2026
14	ATS	Indirect evidence	Cambridge, United StatesHQ checked Sep 27, 2026	n/a	313 contacts →
	Indirect evidence “ATS – 40 Years: Advancing Projects, Boosting Profits, and Cutting Costs For over 40 years, ATS has partnered with organizations worldwide to deliver outstanding results.” Source: RevenueBase Database · checked Sep 27, 2026
15	Bridgepoint Consulting	Partial evidence	Austin, TX, United StatesHQ checked Sep 27, 2026	201-500	250 contacts →
	Partial evidence “Bridgepoint Consulting, an Addison Group company, is a leading management consulting firm that offers a full suite of services and solutions to help companies navigate the…” Source: RevenueBase Database · checked Sep 27, 2026
16	Scottmadden, INC	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 27, 2026	201-500	244 contacts →
	Partial evidence “ScottMadden is a management consulting firm that does what it takes to get the job done right.” Source: RevenueBase Database · checked Sep 27, 2026
17	Gparency	Partial evidence	Howell, NJ, United StatesHQ checked Sep 27, 2026	n/a	241 contacts →
	Partial evidence “We know you work hard to get the best deal possible.” Source: RevenueBase Database · checked Sep 27, 2026
18	LCG	Partial evidence	Lisbon, PortugalHQ checked Sep 27, 2026	201-500	230 contacts →
	Partial evidence “LCG provides consulting services, using their multidisciplinary skills in the areas of strategic and operational management, information systems, management support, business…” Source: RevenueBase Database · checked Sep 27, 2026
19	Peersgroup	Partial evidence	Paris, FranceHQ checked Sep 27, 2026	201-500	215 contacts →
	Partial evidence “PeersGroup est un cabinet de conseil en Management spécialisé en Performance Opérationnelle.” Source: RevenueBase Database · checked Sep 27, 2026
20	RSM Ebner Stolz Management Consultants	Strong evidence	Köln, GermanyHQ checked Sep 27, 2026	51-200	207 contacts →
	Strong evidence “RSM Ebner Stolz Management Consultants ist eine thematisch breit aufgestellte Top-Managementberatung mit Fokus auf mittelständische Unternehmen und Konzerne.” Source: RevenueBase Database · checked Sep 27, 2026
21	PT LPP Agro Nusantara	Indirect evidence	Yogyakarta, IndonesiaHQ checked Sep 27, 2026	501-1,000	206 contacts →
	Indirect evidence “LPP AGRO NUSANTARA is establish in Yogyakarta earliest beginning in 2002.” Source: RevenueBase Database · checked Sep 27, 2026
22	Waaree Energies Private Limited	Partial evidence	Mumbai, IndiaHQ checked Sep 27, 2026	201-500	196 contacts →
	Partial evidence “Waaree Energies Private Limited is a management consulting company based out of 602, 6th FloorWestern Edge - IWestern Express Highway, Mumbai, India.” Source: RevenueBase Database · checked Sep 27, 2026
23	Sltconsult Contabilidade E Gestão Empresarial	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 27, 2026	201-500	194 contacts →
	Indirect evidence “Na SLT, somos um time composto por mais de 200 profissionais altamente capacitados, especializados em transformar estratégias em resultados tangíveis.” Source: RevenueBase Database · checked Sep 27, 2026
24	Mercer Management Consulting	Partial evidence	United StatesHQ checked Sep 27, 2026	1,001-5,000	184 contacts →
	Partial evidence “Mercer Management Consulting is now Oliver Wyman: With offices in 50+ cities across 25 countries, Oliver Wyman is a leading global management consulting firm that combines deep…” Source: RevenueBase Database · checked Sep 27, 2026
25	Sourcing	Indirect evidence	Santiago, ChileHQ checked Sep 27, 2026	51-200	178 contacts →
	Indirect evidence “Parte importante de la cadena de valor de una compañía es operada a través de servicios de terceros, que representan entre el 40% al 70% de los gastos, administrando procesos…” Source: RevenueBase Database · checked Sep 27, 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: complex deal management 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 complex deal management consultants.
Partial evidence: Its own public description names part of complex deal management consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name complex deal management 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 12,111 complex deal management consultants worldwide

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Complex deal management consultants worldwide at a glance

As of Sep 27, 2026

20.6%Verified-email coverage

6.4Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · Sao Paulo

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

9,379

11-50

2,241

51-200

355

201-500

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 complex deal management 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 complex deal management consultants are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “complex deal management 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 complex deal management 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 complex deal management 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, 15,879 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 27, 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.

Complex deal management consultants by location

51 lists · largest first

Every Complex deal management 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 complex deal management 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 complex deal management consultants are there worldwide?

RevenueBase identified 12,111 complex deal management 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?

Management Solutions, headquartered in Madrid, tops this list with the largest team on record.

Which country has the most complex deal management consultants?

The United States leads with 2,322 companies, followed by Brazil (958) and the United Kingdom (573). Every complex deal management consultants list by country and city is linked on this page.

Which city has the most complex deal management consultants?

Sao Paulo leads with 300 headquartered companies, followed by London (194) and Paris (169).

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 15,879 verified decision-maker contacts tracked across these 12,111 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 27, 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.