Company lists · Data refreshed October 2026

Top 25 IT consulting and av services worldwide

Name: IT consulting and av services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 32,855 companies tracked

RevenueBase identified 32,855 IT consulting and av services worldwide as of October 2026 and tracks 332,426 professional contacts across them, including 102,798 with verified work emails and 55,594 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers IT consulting and av services 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 October 1, 2026. Country and city lists for IT consulting and av services 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 Oct 1, 2026 86% judged on-target in blind review

32,855Companies

332,426Contacts tracked

102,798Verified emails

55,594Mobile numbers

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The 25 largest IT consulting and av services worldwide

Ranked by team size

Top 25 of 32,855 IT consulting and av services worldwide, ranked by team size, largest first. Data refreshed Oct 1, 2026. RevenueBase Smart Search rates how each company's information relates to IT consulting and av services: 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	Libera Professione	Indirect evidence	Calenzano, ItalyHQ checked Oct 1, 2026	n/a	5,871 contacts →
	Indirect evidence “Consulenza Informatica, sviluppo applicazioni client-server su piattaforma FileMaker, interfacciamento applicativi SQL, Oracle, DB2, AS400, MySql, MS SQL, MS Access.” Source: RevenueBase Database · checked Oct 1, 2026
2	Avi-Spl	Indirect evidence	Tampa, FL, United StatesHQ checked Oct 1, 2026	1,001-5,000	4,017 contacts →
	Indirect evidence “At AVI-SPL, we go beyond technology; we empower the human experience at work.” Source: RevenueBase Database · checked Oct 1, 2026
3	Alten Italia	Indirect evidence	Milan, ItalyHQ checked Oct 1, 2026	1,001-5,000	3,085 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Oct 1, 2026
4	GFI World	Indirect evidence	Saint-ouen, FranceHQ checked Oct 1, 2026	10001+	2,169 contacts →
	Indirect evidence “Gfi became Inetum in 2020.” Source: RevenueBase Database · checked Oct 1, 2026
5	IES Communications	Indirect evidence	Tempe, AZ, United StatesHQ checked Oct 1, 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 Oct 1, 2026
6	Infotel	Indirect evidence	Neuilly-sur-seine, FranceHQ checked Oct 1, 2026	1,001-5,000	1,735 contacts →
	Indirect evidence “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.).” Source: RevenueBase Database · checked Oct 1, 2026
7	EOS IT Solutions	Partial evidence	Banbridge, United KingdomHQ checked Oct 1, 2026	1,001-5,000	1,478 contacts →
	Partial evidence “EOS IT Solutions is a global technology and logistics provider delivering collaboration, IT, and managed services to leading organizations worldwide.” Source: RevenueBase Database · checked Oct 1, 2026
8	Solotech INC	Indirect evidence	Montreal, QC, CanadaHQ checked Oct 1, 2026	1,001-5,000	1,382 contacts →
	Indirect evidence “Solotech is your single source for audio, video, lighting, rigging, soft goods, control and collaboration solutions & services.” Source: RevenueBase Database · checked Oct 1, 2026
9	Trace3	Indirect evidence	Irvine, CA, United StatesHQ checked Oct 1, 2026	1,001-5,000	1,345 contacts →
	Indirect evidence “Trace3 delivers business transformation.” Source: RevenueBase Database · checked Oct 1, 2026
10	V-Soft Consulting Group, INC	Partial evidence	Louisville, KY, United StatesHQ checked Oct 1, 2026	1,001-5,000	1,221 contacts →
	Partial evidence “V-Soft Consulting, an innovative corporation specializing in Information Technology consulting; including staffing, digital, and infrastructure solutions.” Source: RevenueBase Database · checked Oct 1, 2026
11	Noesis	Partial evidence	Lisbon, PortugalHQ checked Oct 1, 2026	1,001-5,000	1,220 contacts →
	Partial evidence “Noesis is an international tech consulting company with 30 years of experience, delivering solutions to drive digital transformation and support business growth.” Source: RevenueBase Database · checked Oct 1, 2026
12	GMS	Strong evidence	Lisbon, PortugalHQ checked Oct 1, 2026	201-500	1,168 contacts →
	Strong evidence “GMS was established in early 2003 to provide strategic, business and IT consulting and changed its name to Maksen in December 2010.” Source: RevenueBase Database · checked Oct 1, 2026
13	CTI	Strong evidence	St. Louis, MO, United StatesHQ checked Oct 1, 2026	1,001-5,000	1,081 contacts →
	Strong evidence “CTI, the largest privately held AV integration and events provider in the United States, provides audiovisual, IT, and UCC solutions, including engineering, design, installation…” Source: RevenueBase Database · checked Oct 1, 2026
14	ACP Gruppe	Strong evidence	Wien Und München, AustriaHQ checked Oct 1, 2026	1,001-5,000	1,076 contacts →
	Strong evidence “ACP bietet herstellerunabhängig Consulting, Beschaffung und Integration, Managed Services, Datacenter Services sowie IT-Finanzierung für das gesamte IT-Sortiment und betreut…” Source: RevenueBase Database · checked Oct 1, 2026
15	Itec South Africa	Indirect evidence	Paulshof, South AfricaHQ checked Oct 1, 2026	501-1,000	1,049 contacts →
	Indirect evidence “We are strategic consultants and managed business service experts who design and implement technology solutions, empowering businesses to focus on what they do best.” Source: RevenueBase Database · checked Oct 1, 2026
16	Synoptek	Partial evidence	Costa Mesa, CA, United StatesHQ checked Oct 1, 2026	1,001-5,000	1,037 contacts →
	Partial evidence “Synoptek is a leading global managed services provider and technology consulting firm that delivers transformative business results.” Source: RevenueBase Database · checked Oct 1, 2026
17	Spindox	Indirect evidence	Milan, ItalyHQ checked Oct 1, 2026	1,001-5,000	1,030 contacts →
	Indirect evidence “Spindox è un gruppo di consulenza tecnologica che aiuta le imprese a dare direzione alla tecnologia.” Source: RevenueBase Database · checked Oct 1, 2026
18	Capitole	Indirect evidence	Barcelona, FranceHQ checked Oct 1, 2026	1,001-5,000	1,009 contacts →
	Indirect evidence “Who are we?” Source: RevenueBase Database · checked Oct 1, 2026
19	Líder Telecom Ltda	Indirect evidence	São Paulo, BrazilHQ checked Oct 1, 2026	1,001-5,000	959 contacts →
	Indirect evidence “A Líder Telecom oferece aos clientes serviços de assessoria necessária ao estabelecimento de seu planejamento técnico e operacional para atendimento a redes corporativas de…” Source: RevenueBase Database · checked Oct 1, 2026
20	KINLY	Indirect evidence	Wall, NJ, United StatesHQ checked Oct 1, 2026	1,001-5,000	825 contacts →
	Indirect evidence “Kinly is a global leader in workplace technology, systems integration, managed services, and enterprise collaboration.” Source: RevenueBase Database · checked Oct 1, 2026
21	Buchanan Technologies	Strong evidence	Grapevine, TX, United StatesHQ checked Oct 1, 2026	501-1,000	818 contacts →
	Strong evidence “As a leading IT consulting and outsourcing services firm, Buchanan Technologies helps organizations across North America turn their business technology into a powerful competitive…” Source: RevenueBase Database · checked Oct 1, 2026
22	Tekwissen	Partial evidence	Ann Arbor, MI, United StatesHQ checked Oct 1, 2026	1,001-5,000	797 contacts →
	Partial evidence “Welcome TekWissen, your premier partner in technology consulting, workforce solutions, payroll services, procurement, managed services, global capability centers, and venture…” Source: RevenueBase Database · checked Oct 1, 2026
23	Senacor Technologies	Strong evidence	Eschborn, GermanyHQ checked Oct 1, 2026	1,001-5,000	787 contacts →
	Strong evidence “Senacor is part of the 25 leading IT-Consulting companies and among the Top 5 of the medium-sized IT-Service providers in Germany and runs 10 offices in Austria, Switzerland…” Source: RevenueBase Database · checked Oct 1, 2026
24	TNG Technology Consulting	Partial evidence	Unterföhring, GermanyHQ checked Oct 1, 2026	501-1,000	773 contacts →
	Partial evidence “TNG Technology Consulting is a values-based consulting partnership focused on high-end information technology.” Source: RevenueBase Database · checked Oct 1, 2026
25	Quantum World Technologies INC	Strong evidence	Los Alamitos, CA, United StatesHQ checked Oct 1, 2026	501-1,000	761 contacts →
	Strong evidence “QUANTUM WORLD TECHNOLOGIES INC, is a IT Consulting and Staffing venture of QUANTUM GROUP OF COMPANIES having its presence in IT and I.T.E.S, Real Estate, Hospitality…” Source: RevenueBase Database · checked Oct 1, 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 consulting and av services. 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 consulting and av services.
Partial evidence: Its own public description names part of IT consulting and av services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT consulting and av services. 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 32,855 IT consulting and av services worldwide

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IT consulting and av services worldwide at a glance

As of Oct 1, 2026

30.9%Verified-email coverage

16.7%Mobile-number coverage

10.1Average contacts per company

1-10Median size (employees)

1.9%Largest-city concentration · London

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

21,239

11-50

8,698

51-200

2,130

201-500

423

501-1,000

114

1,001-5,000

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 IT consulting and av services, 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: 36 countries, largest first: the United States, the United Kingdom, Brazil, France, Germany, Canada, Italy, Spain, Australia, the Netherlands and 26 more. Country and city lists for IT consulting and av services are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “IT consulting and av services”. 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 consulting and av services), 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 consulting and av services, 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, 102,798 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 October 1, 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 consulting and av services by location

171 lists · largest first

Every IT consulting and av 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 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 consulting and av services, 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 consulting and av services are there worldwide?

RevenueBase identified 32,855 IT consulting and av services worldwide as of October 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?

Libera Professione, headquartered in Calenzano, tops this list with the largest team on record.

Which country has the most IT consulting and av services?

The United States leads with 12,231 companies, followed by the United Kingdom (2,415) and Brazil (2,154). Every IT consulting and av services list by country and city is linked on this page.

Which city has the most IT consulting and av services?

London leads with 638 headquartered companies, followed by Sao Paulo (638) and New York (375).

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 102,798 verified decision-maker contacts tracked across these 32,855 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 1, 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.