Company lists · Data refreshed November 2026

Top 25 Operational technology consulting companies worldwide

Name: Operational technology consulting companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 20,584 companies tracked

RevenueBase identified 20,584 company matches for operational technology consulting companies worldwide as of November 2026 and tracks 308,612 professional contacts across them, including 88,096 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for operational technology consulting companies 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 operational technology consulting companies 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

20,584Companies

308,612Contacts tracked

88,096Verified emails

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The 25 largest operational technology consulting companies worldwide

Ranked by team size

Top 25 of 20,584 company matches for operational technology consulting companies 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	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
2	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
3	Groupe SII	Exact match	Paris, FranceHQ recorded Nov 6, 2026	10001+	5,212 contacts →
	Exact match “Le groupe SII est une société d’ingénierie et de conseil en technologies (ICT) et une entreprise de services numériques (ESN) créée en 1979 par Bernard HUVÉ, ingénieur de…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Management Solutions	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	1,001-5,000	4,730 contacts →
	Exact match “Management Solutions is a leading provider of business consulting services for regulated industries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	AHEAD	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,490 contacts →
	Exact match “AHEAD accelerates strategy into execution by engineering integrated solutions across infrastructure, applications, data, and security.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	NRI Group	Exact match	Chiyoda-ku, NY, JapanHQ recorded Nov 6, 2026	10001+	3,248 contacts →
	Exact match “We align our goals with our clients’ goals – a true partnership that ensures shared success.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Genpact Headstrong Capital Markets	Exact match	Reston, VA, United StatesHQ recorded Nov 6, 2026	10001+	3,166 contacts →
	Exact match “Genpact Headstrong Capital Markets is a global consulting and IT services company with a specialized focus in capital markets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Alten Italia	Exact match	Milan, ItalyHQ recorded Nov 6, 2026	1,001-5,000	3,042 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	AUBAY	Exact match	Boulogne Billancourt, FranceHQ recorded Nov 6, 2026	5,001-10,000	2,818 contacts →
	Exact match “Present in 7 countries in Europe, Aubay has more than 7800 employees and has generated revenues of € 513,5 million in 2022, with year on year growth consistently.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Etteplan	Exact match	Espoo, FinlandHQ recorded Nov 6, 2026	1,001-5,000	2,556 contacts →
	Exact match “We are a technology service company that, with our thinkers and doers, enable breakthroughs that help industrial businesses change.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	OPTIV	Exact match	Leawood, KS, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,171 contacts →
	Exact match “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	BBA Consultants	Exact match	Mont-saint-hilaire, QC, CanadaHQ recorded Nov 6, 2026	1,001-5,000	2,052 contacts →
	Exact match “We help companies with their challenges and transformation by relying on our sharp business acumen, extensive practical experience and vast technological curiosity.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Hexagon Asset Lifecycle Intelligence	Exact match	Madison, AL, United StatesHQ recorded Nov 6, 2026	10001+	1,698 contacts →
	Exact match “Hexagon’s Asset Lifecycle Intelligence division helps clients design, construct and operate more profitable, safe and sustainable industrial facilities.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	DSS	Exact match	Geneva, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,687 contacts →
	Exact match “dss⁺ is the operational transformation partner for complex and high-hazard industries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Wicresoft	Exact match	Bellevue, WA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	1,519 contacts →
	Exact match “Wicresoft has offices worldwide, providing diverse services across the globe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Sofrecom Tunisie	Exact match	Tunis, TunisiaHQ recorded Nov 6, 2026	1,001-5,000	1,479 contacts →
	Exact match “Sofrecom, filiale du groupe France Télécom - Orange, a développé depuis plus de 45 ans un savoir-faire unique dans les métiers de l’opérateur, qui en fait aujourd’hui l’un des…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Trace3	Exact match	Irvine, MI, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,431 contacts →
	Exact match “Trace3 delivers business transformation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	PAS	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	201-500	1,333 contacts →
	Exact match “PAS, part of Hexagon's Asset Lifecycle Intelligence division, delivers software solutions that prevent, detect, & remediate cyber threats, reduce process safety risks, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Hitech Digital Solutions	Exact match	Ahmedabad, IndiaHQ recorded Nov 6, 2026	1,001-5,000	1,326 contacts →
	Exact match “HitechDigital is an integrated digital solutions company focused on end-to-end process management and optimization, but we are not just your typical digital solutions company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Noesis	Exact match	Lisbon, PortugalHQ recorded Nov 6, 2026	1,001-5,000	1,270 contacts →
	Exact match “Noesis is an international tech consulting company with 30 years of experience, delivering solutions to drive digital transformation and support business growth.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	GMS	Exact match	Lisbon, PortugalHQ recorded Nov 6, 2026	201-500	1,235 contacts →
	Exact match “GMS was established in early 2003 to provide strategic, business and IT consulting and changed its name to Maksen in December 2010.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	IOCO	Exact match	Midrand, South AfricaHQ recorded Nov 6, 2026	1,001-5,000	1,173 contacts →
	Exact match “iOCO is one of Africa's largest end-to-end technology solutions providers, delivering specialised IT and Operational Technology (OT) services to corporate, enterprise, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Capitole	Exact match	Barcelona, SpainHQ recorded Nov 6, 2026	1,001-5,000	1,170 contacts →
	Exact match “Who are we?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Navigant	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	5,001-10,000	1,124 contacts →
	Exact match “Guidehouse is a leading global provider of consulting services to the public and commercial markets with broad capabilities in management, technology, and risk consulting.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	BE Shaping The Future	Exact match	Milan, ItalyHQ recorded Nov 6, 2026	1,001-5,000	1,046 contacts →
	Exact match “Be \| Shaping the Future, parte del gruppo Engineering, è tra i principali player in ambito Management Consulting e ICT Solutions.” 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 “operational technology consulting companies”. 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 20,584 operational technology consulting companies worldwide

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Operational technology consulting companies worldwide at a glance

As of Nov 6, 2026

28.5%Verified-email coverage

15.0Average contacts per company

1-10Median size (employees)

1.5%Largest-city concentration · Sao Paulo

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

12,264

11-50

5,849

51-200

1,756

201-500

380

501-1,000

108

1,001-5,000

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 operational technology consulting companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “operational technology consulting companies” 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 88,096 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.

Operational technology consulting companies by location

132 lists · largest first

Every Operational technology consulting companies 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 “operational technology consulting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many operational technology consulting companies are there worldwide?

RevenueBase identified 20,584 company matches for operational technology consulting companies 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?

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

Which country has the most operational technology consulting companies?

The United States leads with 3,973 companies, followed by Brazil (1,156) and India (1,060). Every operational technology consulting companies list by country and city is linked on this page.

Which city has the most operational technology consulting companies?

Sao Paulo leads with 311 company records, followed by London (300) and Paris (255).

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 88,096 professional contacts with verified work emails tracked across these 20,584 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.