Company lists · Data refreshed September 2026

Top 25 IT systems integration firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 42,801 companies tracked

RevenueBase identified 42,801 IT systems integration firms worldwide as of September 2026 and tracks 782,241 professional contacts across them, including 217,832 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers IT systems integration 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 28, 2026. Country and city lists for IT systems integration 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 28, 2026 86% judged on-target in blind review

42,801Companies

782,241Contacts tracked

217,832Verified emails

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The 25 largest IT systems integration firms worldwide

Ranked by team size

Top 25 of 42,801 IT systems integration firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to IT systems integration 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	Insight	Indirect evidence	Chandler, AZ, United StatesHQ checked Sep 28, 2026	10001+	12,899 contacts →
	Indirect evidence “Insight Enterprises, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
2	SHI International Corp	Indirect evidence	Somerset, NJ, United StatesHQ checked Sep 28, 2026	5,001-10,000	6,734 contacts →
	Indirect evidence “Think of SHI as your personal technology concierge.” Source: RevenueBase Database · checked Sep 28, 2026
3	Datacom	Indirect evidence	Auckland, New ZealandHQ checked Sep 28, 2026	5,001-10,000	5,958 contacts →
	Indirect evidence “Customer focused values.” Source: RevenueBase Database · checked Sep 28, 2026
4	Convergint	Partial evidence	Hoffman Estates, IL, United StatesHQ checked Sep 28, 2026	10001+	5,707 contacts →
	Partial evidence “Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Source: RevenueBase Database · checked Sep 28, 2026
5	SII Poland	Indirect evidence	Warszawa, PolandHQ checked Sep 28, 2026	5,001-10,000	5,519 contacts →
	Indirect evidence “With over 7 500 Power People, Sii is Poland’s #1 partner for technology consulting, AI-driven digital transformation, engineering, and business services, empowering companies to…” Source: RevenueBase Database · checked Sep 28, 2026
6	BCX	Indirect evidence	Centurion, South AfricaHQ checked Sep 28, 2026	5,001-10,000	5,439 contacts →
	Indirect evidence “Reimagine evolution.” Source: RevenueBase Database · checked Sep 28, 2026
7	Matrix	Indirect evidence	Kfar Saba, IsraelHQ checked Sep 28, 2026	10001+	4,980 contacts →
	Indirect evidence “matrix is the leading technology services company, employing over professionals worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
8	Black BOX	Strong evidence	Plano, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,667 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
9	Visionet Systems INC	Indirect evidence	Cranbury, NJ, United StatesHQ checked Sep 28, 2026	10001+	3,119 contacts →
	Indirect evidence “Visionet is a premier digital technology solutions company built on the premise of disruptive innovation.” Source: RevenueBase Database · checked Sep 28, 2026
10	ATS Corporation	Indirect evidence	Cambridge, ON, CanadaHQ checked Sep 28, 2026	5,001-10,000	2,754 contacts →
	Indirect evidence “HELPING ADVANCE THE FUTURE ATS Corporation is an industry-leading automation solutions provider to many of the world's most successful companies.” Source: RevenueBase Database · checked Sep 28, 2026
11	Hitachi Digital Services	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 28, 2026	5,001-10,000	2,691 contacts →
	Partial evidence “Hitachi Digital Services, a wholly owned subsidiary of Hitachi, Ltd, is a global systems integrator powering mission-critical platforms with people and technology.” Source: RevenueBase Database · checked Sep 28, 2026
12	Velocis Systems Private Limited	Partial evidence	Noida, IndiaHQ checked Sep 28, 2026	1,001-5,000	2,637 contacts →
	Partial evidence “As one of India’s leading system integrators, Velocis partners with organizations to turn technology into a catalyst for measurable business value.” Source: RevenueBase Database · checked Sep 28, 2026
13	Spread Tecnologia	Indirect evidence	São Paulo, BrazilHQ checked Sep 28, 2026	1,001-5,000	2,521 contacts →
	Indirect evidence “With over 30 years of experience in Information and Communication Technology market, the Spread has extensive experience and expertise in the field and has the challenge of…” Source: RevenueBase Database · checked Sep 28, 2026
14	BOOMI	Indirect evidence	Conshohocken, PA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,491 contacts →
	Indirect evidence “Connect everything to achieve anything™ #TeamBoomi” Source: RevenueBase Database · checked Sep 28, 2026
15	Allied Digital	Partial evidence	Mumbai, IndiaHQ checked Sep 28, 2026	1,001-5,000	2,475 contacts →
	Partial evidence “Allied Digital Services is a globally recognized leader in Digital Transformation and a Master Systems Integrator, with over four decades of proven experience.” Source: RevenueBase Database · checked Sep 28, 2026
16	SVA System Vertrieb Alexander Gmbh	Partial evidence	Wiesbaden, GermanyHQ checked Sep 28, 2026	1,001-5,000	2,452 contacts →
	Partial evidence “Imprint: SVA is one of the leading system integrators in Germany.” Source: RevenueBase Database · checked Sep 28, 2026
17	Giza Systems	Partial evidence	Cairo, EgyptHQ checked Sep 28, 2026	1,001-5,000	1,975 contacts →
	Partial evidence “pulse by solutions (formerly known as Giza Systems Group) is the trusted global force behind critical industries, deploying the Intelligence That Transforms to accelerate digital…” Source: RevenueBase Database · checked Sep 28, 2026
18	GURU	Strong evidence	Rockville, MD, United StatesHQ checked Sep 28, 2026	n/a	1,906 contacts →
	Strong evidence “Established in 1995, GURU is an IT managed service provider that specializes in infrastructure support, systems integration, data architecture, data hosting, and cloud services.” Source: RevenueBase Database · checked Sep 28, 2026
19	Fincons Group	Strong evidence	Vimercate, ItalyHQ checked Sep 28, 2026	1,001-5,000	1,870 contacts →
	Strong evidence “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.” Source: RevenueBase Database · checked Sep 28, 2026
20	Precision Infomatic M Private Limited	Strong evidence	Chennai, IndiaHQ checked Sep 28, 2026	1,001-5,000	1,860 contacts →
	Strong evidence “Established in 1996, Precision provides IT Infrastructure Management Services, Biometric, IoT, Cloud and IT System Integration solutions.” Source: RevenueBase Database · checked Sep 28, 2026
21	IES Communications	Indirect evidence	Tempe, AZ, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,800 contacts →
	Indirect evidence “IES Communications a division of IES (NASDAQ: IESC) provides each client with a team of highly qualified dedicated professionals that deliver superior quality and cost effective…” Source: RevenueBase Database · checked Sep 28, 2026
22	Consort Group	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1,001-5,000	1,704 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
23	Mc2i	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	1,001-5,000	1,668 contacts →
	Partial evidence “mc2i is an independent consultancy in Information System.” Source: RevenueBase Database · checked Sep 28, 2026
24	Quadrant Technologies	Partial evidence	Redmond, WA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,664 contacts →
	Partial 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 28, 2026
25	ASM Research	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,568 contacts →
	Indirect evidence “ASM Research, an Accenture Federal Services Company, is an information solutions integrator and a leading provider of innovative technology solutions and advanced analytical…” Source: RevenueBase Database · checked Sep 28, 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: IT systems integration 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 IT systems integration firms.
Partial evidence: Its own public description names part of IT systems integration firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT systems integration 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 42,801 IT systems integration firms worldwide

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IT systems integration firms worldwide at a glance

As of Sep 28, 2026

27.8%Verified-email coverage

18.3Average contacts per company

11-50Median size (employees)

1.1%Largest-city concentration · Sao Paulo

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

19,674

11-50

15,640

51-200

5,372

201-500

1,228

501-1,000

394

1,001-5,000

273

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 IT systems integration 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: Every country. Country and city lists for IT systems integration firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “IT systems integration 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 IT systems integration 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 IT systems integration 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, 217,832 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 28, 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.

IT systems integration firms by location

236 lists · largest first

Every IT systems integration 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 IT systems integration 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 IT systems integration firms are there worldwide?

RevenueBase identified 42,801 IT systems integration 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?

Insight, headquartered in Chandler, tops this list with the largest team on record.

Which country has the most IT systems integration firms?

The United States leads with 8,600 companies, followed by India (3,473) and Brazil (1,766). Every IT systems integration firms list by country and city is linked on this page.

Which city has the most IT systems integration firms?

Sao Paulo leads with 466 headquartered companies, followed by Dubai (429) and London (385).

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 217,832 verified decision-maker contacts tracked across these 42,801 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 28, 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.