Company lists · Data refreshed September 2026

Top 25 Data modernization consulting firms worldwide

Name: Data modernization consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 23,621 companies tracked

RevenueBase identified 23,621 company matches for data modernization consulting firms worldwide as of September 2026 and tracks 1,130,014 professional contacts across them, including 314,591 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for data modernization consulting firms 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 September 28, 2026. Country and city lists for data modernization consulting firms 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 Sep 28, 2026 How this list was built

23,621Companies

1,130,014Contacts tracked

314,591Verified emails

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The 25 largest data modernization consulting firms worldwide

Ranked by team size

Top 25 of 23,621 company matches for data modernization consulting firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	Infosys	Exact match	Bangalore, IndiaHQ recorded Sep 28, 2026	10001+	323,099 contacts →
	Exact match “Infosys is a global leader in next-generation digital services and consulting.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	DXC Technology	Exact match	Ashburn, VA, United StatesHQ recorded Sep 28, 2026	10001+	82,768 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 · Sep 28, 2026 · View company records in RevenueBase
3	Accenture In India	Exact match	Bengaluru, IndiaHQ recorded Sep 28, 2026	10001+	74,008 contacts →
	Exact match “Accenture is a global professional services company with leading capabilities in digital, cloud and security.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Mphasis	Exact match	Bangalore, IndiaHQ recorded Sep 28, 2026	10001+	43,484 contacts →
	Exact match “A leading applied technology services company, we innovate to deliver service excellence and successful outcomes across sales, delivery and development.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	EXL	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	10001+	40,100 contacts →
	Exact match “Choosing a digital partner is about more than capabilities, it’s about collaboration and character.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Persistent Systems	Exact match	Pune, IndiaHQ recorded Sep 28, 2026	10001+	27,154 contacts →
	Exact match “We are an AI-led, platform-driven Digital Engineering and Enterprise Modernization partner, combining deep technical expertise and industry experience to help our clients…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Yash Technologies	Exact match	East Moline, IL, United StatesHQ recorded Sep 28, 2026	5,001-10,000	7,769 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 · Sep 28, 2026 · View company records in RevenueBase
8	Sonata Software	Exact match	Bangalore, IndiaHQ recorded Sep 28, 2026	5,001-10,000	7,508 contacts →
	Exact match “Sonata Software Limited is a leading Modernization engineering company, headquartered in Bangalore.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Tiger Analytics	Exact match	Santa Clara, CA, United StatesHQ recorded Sep 28, 2026	5,001-10,000	6,160 contacts →
	Exact match “In a world rife with complexity, we help our customers cut through uncertainty, plan strategically, and execute confidently.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Ness Digital Engineering	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	1,001-5,000	5,336 contacts →
	Exact match “Ness Digital Engineering is a global provider of Intelligent Data and Software Engineering services, specializing in data, AI, and cloud-powered solutions that drive innovation…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Celebal Technologies	Exact match	Jaipur, IndiaHQ recorded Sep 28, 2026	1,001-5,000	4,851 contacts →
	Exact match “Celebal Technologies is a premier software services company in the field of Data Science, Big Data and Enterprise Cloud.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	CES	Exact match	Bolingbrook, IL, United StatesHQ recorded Sep 28, 2026	1,001-5,000	3,502 contacts →
	Exact match “CES is a trusted global provider of Technology and Business Process Modernization (BPM) services, serving enterprise clients for over three decades.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Ensono	Exact match	Downers Grove, IL, United StatesHQ recorded Sep 28, 2026	1,001-5,000	3,247 contacts →
	Exact match “Ensono is an expert technology adviser and managed service provider.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Quest Software	Exact match	Austin, TX, United StatesHQ recorded Sep 28, 2026	1,001-5,000	3,206 contacts →
	Exact match “At Quest Software, we help organizations build modern, trusted foundations for AI.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	TALAN	Exact match	Paris, FranceHQ recorded Sep 28, 2026	5,001-10,000	3,155 contacts →
	Exact match “Founded in France, Talan has grown into an international group that supports our clients in their end-to-end Data & AI transformation by combining management consulting with…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	AHEAD	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,989 contacts →
	Exact match “AHEAD accelerates strategy into execution by engineering integrated solutions across infrastructure, applications, data, and security.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Rocket Software	Exact match	Waltham, MA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,703 contacts →
	Exact match “As a global technology leader, Rocket Software is the partner of choice for organizations transforming their IT from core systems to the cloud.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Speridian Technologies	Exact match	Albuquerque, NM, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,619 contacts →
	Exact match “Speridian Technologies is a global consulting and technology services firm that helps enterprises and public sector organizations modernize operations, enhance customer experience…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	HSO	Exact match	Amsterdam, JapanHQ recorded Sep 28, 2026	1,001-5,000	2,600 contacts →
	Exact match “We help companies modernize business operations, adopt intelligent automation, deliver real-time performance insights and connect the enterprise – accelerating the impact of…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	People Tech Group INC	Exact match	Redmond, WA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,434 contacts →
	Exact match “People Tech Group is a leading Enterprise Solutions, Digital Transformation, Data Intelligence, and Modern Operation services provider.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Stefanini Latam	Exact match	São Paulo, BrazilHQ recorded Sep 28, 2026	10001+	2,407 contacts →
	Exact match “Global Tech Consulting Company All in One.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Alithya	Exact match	Montréal, QC, CanadaHQ recorded Sep 28, 2026	1,001-5,000	2,338 contacts →
	Exact match “We are trusted advisors who leverage AI and the latest technologies in our strategic consulting and digital transformation services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	CTG	Exact match	Amherst, NY, United StatesHQ recorded Sep 28, 2026	5,001-10,000	2,264 contacts →
	Exact match “CTG, a Cegeka company, is at the forefront of digital transformation, offering innovative IT solutions and services that accelerate your strategy and project momentum.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Artefact	Exact match	Paris, FranceHQ recorded Sep 28, 2026	1,001-5,000	2,016 contacts →
	Exact match “Artefact is a global consulting and engineering firm specializing in data and AI services, headquartered in Paris, and a leader in Europe.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	SG Analytics	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,964 contacts →
	Exact match “SG Analytics (SGA), a Straive company, is a leading global data and AI consulting firm delivering solutions across AI, Data, Technology, and Research.” Recorded in the RevenueBase company graph · Sep 28, 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 “data modernization consulting firms”. 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 23,621 data modernization consulting firms worldwide

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Data modernization consulting firms worldwide at a glance

As of Sep 28, 2026

27.8%Verified-email coverage

47.8Average contacts per company

1-10Median size (employees)

2.3%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

13,377

11-50

6,657

51-200

2,477

201-500

611

501-1,000

213

1,001-5,000

191

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 data modernization consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “data modernization consulting firms” 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 314,591 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 September 28, 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.

Data modernization consulting firms by location

156 lists · largest first

Every Data modernization consulting 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 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 “data modernization consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many data modernization consulting firms are there worldwide?

RevenueBase identified 23,621 company matches for data modernization consulting firms worldwide as of September 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?

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

Which country has the most data modernization consulting firms?

The United States leads with 5,358 companies, followed by India (2,286) and France (1,203). Every data modernization consulting firms list by country and city is linked on this page.

Which city has the most data modernization consulting firms?

London leads with 550 company records, followed by Paris (476) and Sao Paulo (294).

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 314,591 professional contacts with verified work emails tracked across these 23,621 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 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 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.