Company lists · Data refreshed November 2026

Top 25 IT operations consulting service providers worldwide

Name: IT operations consulting service providers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 70,809 companies tracked

RevenueBase identified 70,809 company matches for IT operations consulting service providers worldwide as of November 2026 and tracks 1,549,009 professional contacts across them, including 367,255 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for IT operations consulting service providers 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 November 6, 2026. Country and city lists for IT operations consulting service providers 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 Nov 6, 2026 How this list was built

70,809Companies

1,549,009Contacts tracked

367,255Verified emails

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The 25 largest IT operations consulting service providers worldwide

Ranked by team size

Top 25 of 70,809 company matches for IT operations consulting service providers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Tech Mahindra	Exact match	Pune, IndiaHQ recorded Nov 6, 2026	10001+	145,360 contacts →
	Exact match “Tech Mahindra offers technology consulting and digital solutions to global enterprises across industries, enabling transformative scale at unparalleled speed.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	DXC Technology	Exact match	Ashburn, VA, United StatesHQ recorded Nov 6, 2026	10001+	86,844 contacts →
	Exact match “DXC Technology helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	WNS	Exact match	London, United StatesHQ recorded Nov 6, 2026	10001+	49,860 contacts →
	Exact match “WNS, part of Capgemini, is a global Agentic AI-powered intelligent operations and transformation company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	NTT Data	Exact match	Tokyo, JapanHQ recorded Nov 6, 2026	10001+	42,145 contacts →
	Exact match “NTT DATA – a part of NTT Group – IT and business services headquartered in Tokyo.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Virtusa	Exact match	Southborough, MA, United StatesHQ recorded Nov 6, 2026	10001+	31,368 contacts →
	Exact match “Virtusa is a global product and platform engineering services company that makes experiences better with technology.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	NTT Data, INC	Exact match	Tokyo, JapanHQ recorded Nov 6, 2026	10001+	21,602 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Birlasoft	Exact match	Pune, NC, IndiaHQ recorded Nov 6, 2026	10001+	14,500 contacts →
	Exact match “Navigating Change.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	CDW	Exact match	Vernon Hills, IL, United StatesHQ recorded Nov 6, 2026	10001+	13,669 contacts →
	Exact match “At CDW, we know how to make technology work so people can do great things.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Apex Systems	Exact match	Glen Allen, United StatesHQ recorded Nov 6, 2026	1,001-5,000	12,788 contacts →
	Exact match “Everforth Apex Systems, part of the Everforth ™ Network, is a leading global technology services company specializing in customizable industry-specific solutions that turns…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	NTT Data Business Solutions	Exact match	Bielefeld, GermanyHQ recorded Nov 6, 2026	10001+	11,594 contacts →
	Exact match “We understand the business of our clients and know what it takes to transform it into the future.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Accenture Brasil	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	10001+	10,564 contacts →
	Exact match “A Accenture é uma empresa líder global de serviços profissionais que ajuda grandes companhias, governos e outras organizações a construir sua essência digital, otimizar suas…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	HTC Global Services	Exact match	Troy, MI, United StatesHQ recorded Nov 6, 2026	10001+	9,413 contacts →
	Exact match “HTC Global Services Inc, founded in 1990, headquartered in Troy, Michigan, is a global provider of Information Technology and Business Process Services and Solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Cybage Software	Exact match	Pune, IndiaHQ recorded Nov 6, 2026	5,001-10,000	9,067 contacts →
	Exact match “Cybage is an information technology company specializing in outsourced product engineering and IT consulting services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Logica	Exact match	Montreal, QC, CanadaHQ recorded Nov 6, 2026	10001+	8,251 contacts →
	Exact match “Logica is now part of CGI, a global IT and business process services provider delivering business consulting, systems integration and outsourcing services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Yash Technologies	Exact match	East Moline, ON, United StatesHQ recorded Nov 6, 2026	5,001-10,000	8,131 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 · Nov 6, 2026 · View company records in RevenueBase
16	Sify Technologies Limited	Exact match	Chennai, IndiaHQ recorded Nov 6, 2026	1,001-5,000	7,202 contacts →
	Exact match “A Fortune India 500 company, Sify Technologies is India’s most comprehensive ICT service & solution provider.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	SHI International Corp	Exact match	Somerset, United StatesHQ recorded Nov 6, 2026	5,001-10,000	7,151 contacts →
	Exact match “Think of SHI as your personal technology concierge.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Wavestone	Exact match	100-101 Terrasse Boieldieu, FranceHQ recorded Nov 6, 2026	1,001-5,000	6,512 contacts →
	Exact match “Wavestone is a leading consulting firm operating at the intersection of business and technology.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Adesso SE	Exact match	Dortmund, GermanyHQ recorded Nov 6, 2026	5,001-10,000	5,232 contacts →
	Exact match “The future belongs to companies that effectively translate agentic AI into value creation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Amaris Consulting Part Of Mantu	Exact match	Chêne-bourg, SwitzerlandHQ recorded Nov 6, 2026	5,001-10,000	5,223 contacts →
	Exact match “Amaris Consulting is an independent technology consulting firm providing guidance and solutions to businesses.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Xceedance	Exact match	Boston, MA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	4,865 contacts →
	Exact match “Xceedance provides strategic operations support, technology, and data services to drive efficiencies for insurance organizations worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	MHP A Porsche Company	Exact match	Ludwigsburg, GA, GermanyHQ recorded Nov 6, 2026	1,001-5,000	4,570 contacts →
	Exact match “MHP is a management and IT consultancy headquartered in Ludwigsburg, Germany.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	CMS IT Services	Exact match	Bangalore, IndiaHQ recorded Nov 6, 2026	5,001-10,000	4,449 contacts →
	Exact match “CMS IT is a leading India-focused, tier-1 preferred IT provider with a legacy of four decades.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Comarch	Exact match	Kraków, PolandHQ recorded Nov 6, 2026	5,001-10,000	4,341 contacts →
	Exact match “Comarch is a global IT business solution provider that optimizes operational and business processes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Atos IT Solutions And Services A S	Exact match	Taastrup, DenmarkHQ recorded Nov 6, 2026	n/a	3,713 contacts →
	Exact match “Atos er en international IT-serviceleverandør med en årlig omsætning i 2012 på 8.8 milliarder EUR og 76.400 medarbejdere i 47 lande.” Recorded in the RevenueBase company graph · Nov 6, 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 “IT operations consulting service providers”. 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 70,809 IT operations consulting service providers worldwide

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IT operations consulting service providers worldwide at a glance

As of Nov 6, 2026

23.7%Verified-email coverage

21.9Average contacts per company

1-10Median size (employees)

1.7%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

40,792

11-50

20,411

51-200

6,395

201-500

1,602

501-1,000

530

1,001-5,000

382

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 IT operations consulting service providers are linked below.
What qualifies: Company records worldwide whose business descriptions match “IT operations consulting service providers” 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 367,255 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 November 6, 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.

IT operations consulting service providers by location

367 lists · largest first

Every IT operations consulting service providers 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 “IT operations consulting service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT operations consulting service providers are there worldwide?

RevenueBase identified 70,809 company matches for IT operations consulting service providers worldwide as of November 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?

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

Which country has the most IT operations consulting service providers?

The United States leads with 13,999 companies, followed by India (6,346) and the United Kingdom (3,607). Every IT operations consulting service providers list by country and city is linked on this page.

Which city has the most IT operations consulting service providers?

London leads with 1169 company records, followed by Sao Paulo (873) and Bangalore (731).

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 367,255 professional contacts with verified work emails tracked across these 70,809 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 November 6, 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 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.