Company lists · Data refreshed September 2026

Top 25 CRM implementation consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 42,975 companies tracked

RevenueBase identified 42,975 CRM implementation consulting firms worldwide as of September 2026 and tracks 665,298 professional contacts across them, including 197,825 with verified work emails and 78,600 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers CRM implementation consulting firms 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 29, 2026. Country and city lists for CRM implementation consulting firms 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 29, 2026 86% judged on-target in blind review

42,975Companies

665,298Contacts tracked

197,825Verified emails

78,600Mobile numbers

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The 25 largest CRM implementation consulting firms worldwide

Ranked by team size

Top 25 of 42,975 CRM implementation consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to CRM implementation 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	Atento	Partial evidence	Madrid, MexicoHQ checked Sep 29, 2026	10001+	77,129 contacts →
	Partial evidence “We are one of the world's largest global providers of customer relationship management and business transformation outsourcing (CRM/BTO) services and industry leaders in Latin…” Source: RevenueBase Database · checked Sep 29, 2026
2	ZS	Partial evidence	Evanston, IL, United StatesHQ checked Sep 29, 2026	10001+	16,896 contacts →
	Partial evidence “ZS is a management consulting and technology firm that partners with companies to improve life and how we live it.” Source: RevenueBase Database · checked Sep 29, 2026
3	NTT Data Business Solutions	Indirect evidence	Bielefeld, GermanyHQ checked Sep 29, 2026	10001+	10,733 contacts →
	Indirect evidence “We understand the business of our clients and know what it takes to transform it into the future.” Source: RevenueBase Database · checked Sep 29, 2026
4	Slalom	Partial evidence	Seattle, WA, United StatesHQ checked Sep 29, 2026	10001+	10,032 contacts →
	Partial evidence “Slalom is a fiercely human business and technology consulting company that leads with outcomes to bring more value, in all ways, always.” Source: RevenueBase Database · checked Sep 29, 2026
5	Protiviti	Partial evidence	Menlo Park, CA, United StatesHQ checked Sep 29, 2026	5,001-10,000	8,779 contacts →
	Partial evidence “Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Source: RevenueBase Database · checked Sep 29, 2026
6	Yash Technologies	Partial evidence	East Moline, IL, United StatesHQ checked Sep 29, 2026	5,001-10,000	7,769 contacts →
	Partial evidence “YASH Technologies is a consulting-led transformation partner with a proven track record of helping customers address their current and prospective digital transformation…” Source: RevenueBase Database · checked Sep 29, 2026
7	Wavestone	Partial evidence	100-101 Terrasse Boieldieu, FranceHQ checked Sep 29, 2026	1,001-5,000	6,190 contacts →
	Partial evidence “Wavestone is a leading consulting firm operating at the intersection of business and technology.” Source: RevenueBase Database · checked Sep 29, 2026
8	Merkle	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 29, 2026	10001+	4,731 contacts →
	Indirect evidence “Merkle, a dentsu company, powers the experience economy.” Source: RevenueBase Database · checked Sep 29, 2026
9	Management Solutions	Partial evidence	Madrid, SpainHQ checked Sep 29, 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 29, 2026
10	SX Negócios	Indirect evidence	Novo Hamburgo, BrazilHQ checked Sep 29, 2026	5,001-10,000	4,020 contacts →
	Indirect evidence “Somos a Pulse Client Experts, uma empresa em constante evolução, impulsionados pela vontade de fazer acontecer.” Source: RevenueBase Database · checked Sep 29, 2026
11	Accenture Dach	Indirect evidence	Kronberg Im Taunus, GermanyHQ checked Sep 29, 2026	10001+	3,644 contacts →
	Indirect evidence “Über Accenture: Wir sind die weltweit führenden Berater für Strategie, Management, Digitalisierung, Technologie, Outsourcing und Business Transformation.” Source: RevenueBase Database · checked Sep 29, 2026
12	Speridian Technologies	Partial evidence	Albuquerque, NM, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,619 contacts →
	Partial evidence “Speridian Technologies is a global consulting and technology services firm that helps enterprises and public sector organizations modernize operations, enhance customer experience…” Source: RevenueBase Database · checked Sep 29, 2026
13	HSO	Indirect evidence	Amsterdam, JapanHQ checked Sep 29, 2026	1,001-5,000	2,600 contacts →
	Indirect evidence “We help companies modernize business operations, adopt intelligent automation, deliver real-time performance insights and connect the enterprise – accelerating the impact of…” Source: RevenueBase Database · checked Sep 29, 2026
14	Qintess	Indirect evidence	São Paulo, BrazilHQ checked Sep 29, 2026	1,001-5,000	2,347 contacts →
	Indirect evidence “Experts in digital acceleration and business transformation.” Source: RevenueBase Database · checked Sep 29, 2026
15	Contax S.A	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 29, 2026	10001+	2,114 contacts →
	Indirect evidence “Com uma vontade contagiante de fazer a diferença, a Contax é a única empresa do setor presente em toda a jornada de relacionamento do consumidor, com olhar humano e abordagem…” Source: RevenueBase Database · checked Sep 29, 2026
16	Keyrus	Indirect evidence	Levallois-perret, FranceHQ checked Sep 29, 2026	1,001-5,000	1,964 contacts →
	Indirect evidence “At Keyrus, we help organizations move from experimental AI to industrialized AI, from isolated agents to orchestrated systems, and from insight to execution.” Source: RevenueBase Database · checked Sep 29, 2026
17	Gspann Technologies, INC	Strong evidence	Milpitas, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,878 contacts →
	Strong evidence “GSPANN is a US-based consulting services provider focused on implementations in Enterprise Content Management (ECM), Business Intelligence & Mobile Solutioning initiatives.” Source: RevenueBase Database · checked Sep 29, 2026
18	Jade Global	Partial evidence	San Jose, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,872 contacts →
	Partial evidence “Jade Global is a premier consulting, integration, and managed services partner helping enterprises modernize, innovate, and scale.” Source: RevenueBase Database · checked Sep 29, 2026
19	Gyansys INC	Indirect evidence	Carmel, IN, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,864 contacts →
	Indirect evidence “Founded in 2005, GyanSys is a leading global system integrator company supporting enterprise customers worldwide.” Source: RevenueBase Database · checked Sep 29, 2026
20	Quadrant Technologies	Indirect evidence	Redmond, WA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,664 contacts →
	Indirect evidence “Quadrant Technologies: Your Go-to IT Services Partner for a Digital Future For over a decade, Quadrant Technologies has established itself as a trailblazer in the IT services…” Source: RevenueBase Database · checked Sep 29, 2026
21	MCA	Partial evidence	Westport, CT, United StatesHQ checked Sep 29, 2026	n/a	1,650 contacts →
	Partial evidence “MCAworks is a strategic marketing consulting firm passionately dedicated to helping our clients accelerate and sustain business growth.” Source: RevenueBase Database · checked Sep 29, 2026
22	Emagine	Partial evidence	Copenhagen, DenmarkHQ checked Sep 29, 2026	1,001-5,000	1,636 contacts →
	Partial evidence “emagine is a high-end business & IT consulting company challenging the way businesses leverage high-end expertise.” Source: RevenueBase Database · checked Sep 29, 2026
23	Huntswood	Indirect evidence	Reading, United KingdomHQ checked Sep 29, 2026	1,001-5,000	1,622 contacts →
	Indirect evidence “We are Huntswood.” Source: RevenueBase Database · checked Sep 29, 2026
24	Adastra	Indirect evidence	CanadaHQ checked Sep 29, 2026	1,001-5,000	1,543 contacts →
	Indirect evidence “For over two decades, Adastra Corporation has transformed businesses into digital leaders, helping global organizations innovate, achieve operational excellence, and create…” Source: RevenueBase Database · checked Sep 29, 2026
25	Grazitti Interactive	Indirect evidence	Mountain View, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,506 contacts →
	Indirect evidence “Grazitti Interactive is a digital innovation leader with offices in India, USA, Australia, and Singapore.” Source: RevenueBase Database · checked Sep 29, 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: CRM implementation 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 CRM implementation consulting firms.
Partial evidence: Its own public description names part of CRM implementation consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name CRM implementation 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 42,975 CRM implementation consulting firms worldwide

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CRM implementation consulting firms worldwide at a glance

As of Sep 29, 2026

29.7%Verified-email coverage

11.8%Mobile-number coverage

15.5Average contacts per company

1-10Median size (employees)

2.8%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

28,051

11-50

10,653

51-200

3,290

201-500

720

501-1,000

220

1,001-5,000

141

5,001-10,000

10001+

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 CRM implementation 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.
Coverage: 41 countries, largest first: the United States, Brazil, the United Kingdom, Germany, Canada, France, Australia, Spain, Italy, Mexico and 31 more. Country and city lists for CRM implementation consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “CRM implementation 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 CRM implementation 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 CRM implementation consulting firms, 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, 197,825 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 29, 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.

CRM implementation consulting firms by location

223 lists · largest first

Every CRM implementation 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 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 CRM implementation 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 CRM implementation consulting firms are there worldwide?

RevenueBase identified 42,975 CRM implementation consulting firms 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?

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

Which country has the most CRM implementation consulting firms?

The United States leads with 15,500 companies, followed by Brazil (3,619) and the United Kingdom (3,031). Every CRM implementation consulting firms list by country and city is linked on this page.

Which city has the most CRM implementation consulting firms?

London leads with 1218 headquartered companies, followed by Sao Paulo (1088) and Paris (689).

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 197,825 verified decision-maker contacts tracked across these 42,975 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 29, 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.