Company lists · Data refreshed November 2026

Top 25 IT system integration services worldwide

Name: IT system integration services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 43,758 companies tracked

RevenueBase identified 43,758 company matches for IT system integration services worldwide as of November 2026 and tracks 893,613 professional contacts across them, including 234,173 with verified work emails. The United States is the largest market and Bangalore the largest hub.

This list covers company matches for IT system integration services 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 system integration services 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

43,758Companies

893,613Contacts tracked

234,173Verified emails

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The 25 largest IT system integration services worldwide

Ranked by team size

Top 25 of 43,758 company matches for IT system integration services 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	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
2	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
3	Insight	Exact match	Chandler, United StatesHQ recorded Nov 6, 2026	10001+	14,497 contacts →
	Exact match “Insight Enterprises, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	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
5	World Wide Technology	Exact match	Maryland Heights, MO, United StatesHQ recorded Nov 6, 2026	10001+	9,996 contacts →
	Exact match “We are thinkers and doers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	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
7	Datacom	Exact match	Auckland, New ZealandHQ recorded Nov 6, 2026	5,001-10,000	6,268 contacts →
	Exact match “Datacom is a technology partner and solutions provider combining deep local expertise with global capability, working across data, cloud, cyber security, digital engineering and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	SCC	Exact match	Birmingham, FranceHQ recorded Nov 6, 2026	5,001-10,000	5,859 contacts →
	Exact match “SCC unleashes the potential of IT for global businesses, as one of Europe’s largest independent IT groups.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	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
10	Black BOX	Exact match	Plano, United StatesHQ recorded Nov 6, 2026	1,001-5,000	4,014 contacts →
	Exact match “Black Box is a global leader in digital infrastructure solutions, delivering network and system integration, managed services, and technology products to Fortune 100 and top…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Hitachi Digital Services	Exact match	Santa Clara, United StatesHQ recorded Nov 6, 2026	5,001-10,000	3,232 contacts →
	Exact match “Hitachi Digital Services, a wholly owned subsidiary of Hitachi, Ltd, is a global systems integrator powering mission-critical platforms with people and technology.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Velocis Systems Private Limited	Exact match	Noida, IndiaHQ recorded Nov 6, 2026	1,001-5,000	2,731 contacts →
	Exact match “As one of India’s leading system integrators, Velocis partners with organizations to turn technology into a catalyst for measurable business value.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Allied Digital	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	1,001-5,000	2,730 contacts →
	Exact match “Allied Digital Services is a globally recognized leader in Digital Transformation and a Master Systems Integrator, with over four decades of proven experience.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	BOOMI	Exact match	Conshohocken, PA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,725 contacts →
	Exact match “Connect everything to achieve anything™ #TeamBoomi” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	SVA System Vertrieb Alexander Gmbh	Exact match	Wiesbaden, GermanyHQ recorded Nov 6, 2026	1,001-5,000	2,686 contacts →
	Exact match “SVA is one of the leading system integrators in Germany.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Arvato Systems	Exact match	Gütersloh, GermanyHQ recorded Nov 6, 2026	1,001-5,000	2,680 contacts →
	Exact match “We are Arvato Systems - and we live digitalization.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Astreya	Exact match	San Jose, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,524 contacts →
	Exact match “Astreya is the leading IT solutions provider for some of the world's most recognizable and innovative organizations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	GFI World	Exact match	Saint-ouen, FranceHQ recorded Nov 6, 2026	10001+	2,224 contacts →
	Exact match “Gfi became Inetum in 2020.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	IES Communications	Exact match	Tempe, AZ, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,994 contacts →
	Exact match “IES Communications, a division of IES Holdings, Inc.(NASDAQ: IESC), is a national technology infrastructure integrator.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	GURU	Exact match	Rockville, MD, United StatesHQ recorded Nov 6, 2026	n/a	1,941 contacts →
	Exact match “Established in 1995, GURU is an IT managed service provider that specializes in infrastructure support, systems integration, data architecture, data hosting, and cloud services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Fincons Group	Exact match	Vimercate, ItalyHQ recorded Nov 6, 2026	1,001-5,000	1,932 contacts →
	Exact match “With more than 40 years of experience in IT Business Consulting and System Integration, Fincons Group partners with clients to support business growth through innovation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Precision Infomatic M Private Limited	Exact match	Chennai, IndiaHQ recorded Nov 6, 2026	1,001-5,000	1,900 contacts →
	Exact match “Established in 1996, Precision provides IT Infrastructure Management Services, Biometric, IoT, Cloud and IT System Integration solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Infotel	Exact match	Neuilly-sur-seine, FranceHQ recorded Nov 6, 2026	1,001-5,000	1,842 contacts →
	Exact match “Infotel accompagne les directions Informatiques et Métiers des grandes entreprises depuis 45 ans (Airbus, Air France, PSA, BNP Paribas, Banque de France ou encore BPCE, etc.).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Consort Group	Exact match	Paris, FranceHQ recorded Nov 6, 2026	1,001-5,000	1,758 contacts →
	Exact match “Acteur de référence des systèmes d’information augmentés par l’intégration stratégique de la data, Consort Group accompagne les entreprises pour leur permettre de valoriser ce…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Quadrant Technologies	Exact match	Redmond, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,746 contacts →
	Exact match “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…” 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 system integration services”. 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 43,758 IT system integration services worldwide

See the full list, filter by size, metro and specialty, and access 234,173 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT system integration services worldwide at a glance

As of Nov 6, 2026

26.2%Verified-email coverage

20.4Average contacts per company

11-50Median size (employees)

1.1%Largest-city concentration · Bangalore

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

20,183

11-50

15,815

51-200

5,301

201-500

1,285

501-1,000

407

1,001-5,000

276

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 system integration services are linked below.
What qualifies: Company records worldwide whose business descriptions match “IT system integration services” 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 234,173 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 system integration services by location

259 lists · largest first

Every IT system integration services 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 system integration services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT system integration services are there worldwide?

RevenueBase identified 43,758 company matches for IT system integration services 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?

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

Which country has the most IT system integration services?

The United States leads with 6,333 companies, followed by India (4,611) and Germany (2,033). Every IT system integration services list by country and city is linked on this page.

Which city has the most IT system integration services?

Bangalore leads with 478 company records, followed by Dubai (474) and Sao Paulo (454).

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 234,173 professional contacts with verified work emails tracked across these 43,758 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.