Company lists · Data refreshed September 2026

Top 25 Big data consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 16,953 companies tracked

RevenueBase identified 16,953 big data consulting firms worldwide as of September 2026 and tracks 331,864 professional contacts across them, including 109,511 with verified work emails. The United States is the largest market and London the largest hub.

This list covers big data consulting 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 21, 2026. Country and city lists for big data consulting 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 21, 2026 86% judged on-target in blind review

16,953Companies

331,864Contacts tracked

109,511Verified emails

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The 25 largest big data consulting firms worldwide

Ranked by team size

Top 25 of 16,953 big data consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to big data consulting 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	EXL	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	10001+	40,100 contacts →
	Indirect evidence “Choosing a digital partner is about more than capabilities, it’s about collaboration and character.” Source: RevenueBase Database · checked Sep 21, 2026
2	ZS	Partial evidence	Evanston, IL, United StatesHQ checked Sep 21, 2026	10001+	16,896 contacts →
	Partial evidence “ZS is a management consulting and technology firm that partners with companies to improve life and how we live it.” Source: RevenueBase Database · checked Sep 21, 2026
3	Hitachi Vantara	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 21, 2026	5,001-10,000	9,674 contacts →
	Partial evidence “Hitachi Vantara is The Data Foundation for Innovation.” Source: RevenueBase Database · checked Sep 21, 2026
4	Tiger Analytics	Indirect evidence	Santa Clara, CA, United StatesHQ checked Sep 21, 2026	5,001-10,000	6,160 contacts →
	Indirect evidence “In a world rife with complexity, we help our customers cut through uncertainty, plan strategically, and execute confidently.” Source: RevenueBase Database · checked Sep 21, 2026
5	Accenture Strategy & Consulting	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	5,001-10,000	5,514 contacts →
	Indirect evidence “Accenture Strategy combines deep industry expertise, advanced analytics capabilities and human-led design methodologies that enable clients to act with speed and confidence.” Source: RevenueBase Database · checked Sep 21, 2026
6	Ness Digital Engineering	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	5,336 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
7	Celebal Technologies	Strong evidence	Jaipur, IndiaHQ checked Sep 21, 2026	1,001-5,000	4,851 contacts →
	Strong evidence “Celebal Technologies is a premier software services company in the field of Data Science, Big Data and Enterprise Cloud.” Source: RevenueBase Database · checked Sep 21, 2026
8	TALAN	Strong evidence	Paris, FranceHQ checked Sep 21, 2026	5,001-10,000	3,155 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
9	Monitor Deloitte	Indirect evidence	United StatesHQ checked Sep 21, 2026	5,001-10,000	3,116 contacts →
	Indirect evidence “To navigate the future with confidence, organizations need to make and act upon the right choices: clear, timely and inspirational choices that deliver growth in a dynamic…” Source: RevenueBase Database · checked Sep 21, 2026
10	Artefact	Strong evidence	Paris, FranceHQ checked Sep 21, 2026	1,001-5,000	2,016 contacts →
	Strong evidence “Artefact is a global consulting and engineering firm specializing in data and AI services, headquartered in Paris, and a leader in Europe.” Source: RevenueBase Database · checked Sep 21, 2026
11	SG Analytics	Strong evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,964 contacts →
	Strong evidence “SG Analytics (SGA), a Straive company, is a leading global data and AI consulting firm delivering solutions across AI, Data, Technology, and Research.” Source: RevenueBase Database · checked Sep 21, 2026
12	Gspann Technologies, INC	Partial evidence	Milpitas, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,878 contacts →
	Partial evidence “GSPANN is a US-based consulting services provider focused on implementations in Enterprise Content Management (ECM), Business Intelligence & Mobile Solutioning initiatives.” Source: RevenueBase Database · checked Sep 21, 2026
13	Latentview Analytics	Strong evidence	Chennai, IndiaHQ checked Sep 21, 2026	1,001-5,000	1,655 contacts →
	Strong evidence “LatentView Analytics is an AI-driven analytics, data engineering, and consulting company that inspires and transforms businesses to excel in the digital world by harnessing the…” Source: RevenueBase Database · checked Sep 21, 2026
14	Syniti	Partial evidence	Needham, MA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,633 contacts →
	Partial evidence “We tackle the hardest work in data for the world's largest organizations.” Source: RevenueBase Database · checked Sep 21, 2026
15	Adastra	Indirect evidence	CanadaHQ checked Sep 21, 2026	1,001-5,000	1,543 contacts →
	Indirect evidence “For over two decades, Adastra Corporation has transformed businesses into digital leaders, helping global organizations innovate, achieve operational excellence, and create…” Source: RevenueBase Database · checked Sep 21, 2026
16	Valcon	Partial evidence	Utrecht, NetherlandsHQ checked Sep 21, 2026	1,001-5,000	1,527 contacts →
	Partial evidence “At Valcon, we are a European powerhouse in AI- and data-driven business transformation.” Source: RevenueBase Database · checked Sep 21, 2026
17	Searce INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,511 contacts →
	Indirect evidence “Searce is an AI-native, engineering-led modern tech consultancy that empowers clients to futurify by delivering real business outcomes.” Source: RevenueBase Database · checked Sep 21, 2026
18	Solita	Partial evidence	Tampere, FinlandHQ checked Sep 21, 2026	1,001-5,000	1,495 contacts →
	Partial evidence “We create impact that lasts by combining tech, data and human insight.” Source: RevenueBase Database · checked Sep 21, 2026
19	Infocepts	Partial evidence	Washington Dc, VA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,485 contacts →
	Partial evidence “Infocepts enables improved business results through more effective use of data, AI & user-friendly analytics.” Source: RevenueBase Database · checked Sep 21, 2026
20	Trace3	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,345 contacts →
	Indirect evidence “Trace3 delivers business transformation.” Source: RevenueBase Database · checked Sep 21, 2026
21	SDG Group	Strong evidence	Milano, ItalyHQ checked Sep 21, 2026	1,001-5,000	1,328 contacts →
	Strong evidence “We are a consulting firm specialized in AI, Data & Analytics.” Source: RevenueBase Database · checked Sep 21, 2026
22	Lingaro	Partial evidence	Warsaw, PolandHQ checked Sep 21, 2026	1,001-5,000	1,296 contacts →
	Partial evidence “You’ve got the data, now what’s next?” Source: RevenueBase Database · checked Sep 21, 2026
23	EGEN	Partial evidence	Naperville, IL, United StatesHQ checked Sep 21, 2026	501-1,000	1,122 contacts →
	Partial evidence “Egen is a technology services company with leading capabilities in cloud, data engineering, analytics, AI, and platform engineering.” Source: RevenueBase Database · checked Sep 21, 2026
24	MTX Group	Partial evidence	Frisco, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,056 contacts →
	Partial evidence “MTXG.ai is a global technology consulting firm that enables organizations to modernize through digital transformation.” Source: RevenueBase Database · checked Sep 21, 2026
25	Mastech Digital	Partial evidence	Moon Township, PA, United StatesHQ checked Sep 21, 2026	1,001-5,000	998 contacts →
	Partial evidence “Mastech Digital helps enterprises ignite intelligence and transform tomorrow by turning data into real, measurable business outcomes.” Source: RevenueBase Database · checked Sep 21, 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: big data consulting 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 big data consulting firms.
Partial evidence: Its own public description names part of big data consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name big data consulting 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 16,953 big data consulting firms worldwide

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Big data consulting firms worldwide at a glance

As of Sep 21, 2026

33.0%Verified-email coverage

19.6Average contacts per company

1-10Median size (employees)

2.8%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

10,717

11-50

4,350

51-200

1,405

201-500

281

501-1,000

1,001-5,000

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 big data consulting 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 big data consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “big data consulting 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 big data consulting 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 big data consulting 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, 109,511 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 21, 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.

Big data consulting firms by location

92 lists · largest first

Every Big data 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 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 big data consulting 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 big data consulting firms are there worldwide?

RevenueBase identified 16,953 big data consulting 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?

EXL, headquartered in New York, tops this list with the largest team on record.

Which country has the most big data consulting firms?

The United States leads with 3,928 companies, followed by India (1,281) and the United Kingdom (987). Every big data consulting firms list by country and city is linked on this page.

Which city has the most big data consulting firms?

London leads with 473 headquartered companies, followed by Paris (279) and Sao Paulo (263).

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 109,511 verified decision-maker contacts tracked across these 16,953 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 21, 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.