Company lists · Data refreshed September 2026

Top 25 Ico consulting firms worldwide

Name: Ico consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 29,694 companies tracked

RevenueBase identified 29,694 company matches for ico consulting firms worldwide as of September 2026 and tracks 368,907 professional contacts across them, including 105,378 with verified work emails. The United States is the largest market and Paris the largest hub.

This list covers company matches for ico consulting firms worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 27, 2026. Country and city lists for ico consulting firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 27, 2026 How this list was built

29,694Companies

368,907Contacts tracked

105,378Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest ico consulting firms worldwide

Ranked by team size

Top 25 of 29,694 company matches for ico consulting firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Protiviti	Exact match	Menlo Park, CA, United StatesHQ recorded Sep 27, 2026	5,001-10,000	8,779 contacts →
	Exact match “Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2	Oliver Wyman	Exact match	New York, NY, United StatesHQ recorded Sep 27, 2026	5,001-10,000	8,230 contacts →
	Exact match “At Oliver Wyman, a Marsh business, we bring deep industry insight, bold innovation, and a collaborative approach that cuts through complexity to help organizations navigate their…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3	Yash Technologies	Exact match	East Moline, IL, United StatesHQ recorded Sep 27, 2026	5,001-10,000	7,769 contacts →
	Exact match “YASH Technologies is a consulting-led transformation partner with a proven track record of helping customers address their current and prospective digital transformation…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4	Wavestone	Exact match	100-101 Terrasse Boieldieu, FranceHQ recorded Sep 27, 2026	1,001-5,000	6,190 contacts →
	Exact match “Wavestone is a leading consulting firm operating at the intersection of business and technology.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5	Amaris Consulting	Exact match	Chêne-bourg, SwitzerlandHQ recorded Sep 27, 2026	5,001-10,000	4,824 contacts →
	Exact match “Amaris Consulting is an independent technology consulting firm providing guidance and solutions to businesses.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6	Management Solutions	Exact match	Madrid, SpainHQ recorded Sep 27, 2026	1,001-5,000	4,468 contacts →
	Exact match “Management Solutions is a leading provider of business consulting services for regulated industries.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7	TALAN	Exact match	Paris, FranceHQ recorded Sep 27, 2026	5,001-10,000	3,155 contacts →
	Exact match “Founded in France, Talan has grown into an international group that supports our clients in their end-to-end Data & AI transformation by combining management consulting with…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8	Monitor Deloitte	Exact match	United StatesHQ recorded Sep 27, 2026	5,001-10,000	3,116 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9	Genpact Headstrong Capital Markets	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	10001+	3,109 contacts →
	Exact match “Genpact Headstrong Capital Markets is a global consulting and IT services company with a specialized focus in capital markets.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10	Alten Italia	Exact match	Milano, ItalyHQ recorded Sep 27, 2026	1,001-5,000	3,085 contacts →
	Exact match “Il Gruppo ALTEN, leader europeo nella consulenza per le tecnologie avanzate in campo ingegneristico e ICT, è quotato alla Borsa di Parigi e vanta più di 57.700 collaboratori in…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11	NRI Group	Exact match	Chiyoda-ku, JapanHQ recorded Sep 27, 2026	10001+	2,979 contacts →
	Exact match “We align our goals with our clients’ goals – a true partnership that ensures shared success.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12	J.S. Held LLC	Exact match	Jericho, NY, PalestineHQ recorded Sep 27, 2026	1,001-5,000	1,954 contacts →
	Exact match “J.S.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13	Mc2i	Exact match	Paris, FranceHQ recorded Sep 27, 2026	1,001-5,000	1,668 contacts →
	Exact match “mc2i is an independent consultancy in Information System.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14	Abylsen	Exact match	Paris, FranceHQ recorded Sep 27, 2026	1,001-5,000	1,577 contacts →
	Exact match “In a world that too often follows currents, Abylsen has been opening itself up to new directions.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15	Adastra	Exact match	CanadaHQ recorded Sep 27, 2026	1,001-5,000	1,543 contacts →
	Exact match “For over two decades, Adastra Corporation has transformed businesses into digital leaders, helping global organizations innovate, achieve operational excellence, and create…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16	Solita	Exact match	Tampere, FinlandHQ recorded Sep 27, 2026	1,001-5,000	1,495 contacts →
	Exact match “We create impact that lasts by combining tech, data and human insight.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	P3	Exact match	Stuttgart, GermanyHQ recorded Sep 27, 2026	1,001-5,000	1,468 contacts →
	Exact match “P3 group is an independent, owner-managed technology and management consulting group founded in 1996.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18	RSM Ebner Stolz	Exact match	Stuttgart, GermanyHQ recorded Sep 27, 2026	1,001-5,000	1,442 contacts →
	Exact match “Wollen Sie jemanden, der Sie auch beim Sprung in neue Märkte und bei allen anstehenden Herausforderungen begleitet?” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19	Trace3	Exact match	Irvine, CA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,345 contacts →
	Exact match “Trace3 delivers business transformation.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20	Accenture Greece	Exact match	Kifisia, GreeceHQ recorded Sep 27, 2026	1,001-5,000	1,171 contacts →
	Exact match “Η Accenture είναι ηγέτιδα εταιρεία παροχής συμβουλευτικών υπηρεσιών σε παγκόσμιο επίπεδο, δημιουργώντας απτή αξία με ταχύτητα και σε μεγάλη κλίμακα.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21	GMS	Exact match	Lisbon, PortugalHQ recorded Sep 27, 2026	201-500	1,168 contacts →
	Exact match “GMS was established in early 2003 to provide strategic, business and IT consulting and changed its name to Maksen in December 2010.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22	W3global	Exact match	Frisco, TX, United StatesHQ recorded Sep 27, 2026	501-1,000	1,149 contacts →
	Exact match “W3Global is a leading provider of end-to-end consulting services, empowering businesses to achieve their strategic goals and optimize their operations.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23	Centric Consulting	Exact match	Dayton, OH, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,113 contacts →
	Exact match “Committed to delivering tailored solutions and unmatched experiences, Centric Consulting is an international business and technology consulting firm that combines the benefits of…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24	Alpha FMC	Exact match	London, IndiaHQ recorded Sep 27, 2026	1,001-5,000	1,041 contacts →
	Exact match “Alpha Financial Markets Consulting is a leading global consultancy to the financial services industry.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25	Navigant	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	5,001-10,000	1,029 contacts →
	Exact match “Guidehouse is a leading global provider of consulting services to the public and commercial markets with broad capabilities in management, technology, and risk consulting.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “ico consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 29,694 ico consulting firms worldwide

See the full list, filter by size, metro and specialty, and access 105,378 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Ico consulting firms worldwide at a glance

As of Sep 27, 2026

28.6%Verified-email coverage

12.4Average contacts per company

1-10Median size (employees)

2.3%Largest-city concentration · Paris

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

18,402

11-50

8,214

51-200

2,272

201-500

443

501-1,000

148

1,001-5,000

107

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for ico consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “ico consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 105,378 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Ico consulting firms by location

133 lists · largest first

Every Ico consulting firms 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “ico consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ico consulting firms are there worldwide?

RevenueBase identified 29,694 company matches for ico consulting firms worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Protiviti tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most ico consulting firms?

The United States leads with 5,631 companies, followed by France (1,683) and India (1,602). Every ico consulting firms list by country and city is linked on this page.

Which city has the most ico consulting firms?

Paris leads with 696 company records, followed by London (538) and Sao Paulo (492).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 105,378 professional contacts with verified work emails tracked across these 29,694 companies; direct dials are available where recorded.

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.

Ready to reach these companies? Verified emails and direct dials for all 29,694 ico consulting firms worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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 SmartSearch, 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.