Company lists · Data refreshed September 2026

Top 25 Refinery digital transformation consultants worldwide

Name: Refinery digital transformation consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 25,148 companies tracked

RevenueBase identified 25,148 refinery digital transformation consultants worldwide as of September 2026 and tracks 1,212,487 professional contacts across them, including 364,987 with verified work emails. The United States is the largest market and London the largest hub.

This list covers refinery digital transformation consultants 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 29, 2026. Country and city lists for refinery digital transformation consultants 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 29, 2026 86% judged on-target in blind review

25,148Companies

1,212,487Contacts tracked

364,987Verified emails

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The 25 largest refinery digital transformation consultants worldwide

Ranked by team size

Top 25 of 25,148 refinery digital transformation consultants worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to refinery digital transformation consultants: 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	Infosys	Partial evidence	Bangalore, IndiaHQ checked Sep 29, 2026	10001+	323,099 contacts →
	Partial evidence “Infosys is a global leader in next-generation digital services and consulting.” Source: RevenueBase Database · checked Sep 29, 2026
2	Accenture In India	Partial evidence	Bengaluru, IndiaHQ checked Sep 29, 2026	10001+	74,008 contacts →
	Partial evidence “Accenture is a global professional services company with leading capabilities in digital, cloud and security.” Source: RevenueBase Database · checked Sep 29, 2026
3	Epam Systems	Partial evidence	Newtown, PA, United StatesHQ checked Sep 29, 2026	10001+	60,211 contacts →
	Partial evidence “EPAM (NYSE:EPAM) is a global leader in AI transformation engineering and integrated consulting, serving Forbes Global companies and ambitious startups.” Source: RevenueBase Database · checked Sep 29, 2026
4	Telus Digital	Strong evidence	Vancouver, BC, CanadaHQ checked Sep 29, 2026	10001+	38,300 contacts →
	Strong evidence “TELUS Digital crafts unique and enduring experiences for customers and employees, and creates future-focused digital transformations that stand the test of time.” Source: RevenueBase Database · checked Sep 29, 2026
5	Sopra Steria	Partial evidence	Paris, FranceHQ checked Sep 29, 2026	10001+	36,960 contacts →
	Partial evidence “Sopra Steria, a major Tech player in Europe with employees in nearly 30 countries, is recognised for its consulting, digital services and solutions.” Source: RevenueBase Database · checked Sep 29, 2026
6	Nagarro	Indirect evidence	Munich, GermanyHQ checked Sep 29, 2026	10001+	18,676 contacts →
	Indirect evidence “Nagarro helps future-proof your business through a forward-thinking, fluidic, and CARING mindset.” Source: RevenueBase Database · checked Sep 29, 2026
7	Capgemini Invent	Strong evidence	Paris, FranceHQ checked Sep 29, 2026	10001+	16,032 contacts →
	Strong evidence “Capgemini Invent is the digital innovation, consulting and transformation brand of the Capgemini Group, a global business line that combines market leading expertise in strategy…” Source: RevenueBase Database · checked Sep 29, 2026
8	Insight	Indirect evidence	Chandler, AZ, United StatesHQ checked Sep 29, 2026	10001+	12,899 contacts →
	Indirect evidence “Insight Enterprises, Inc.” Source: RevenueBase Database · checked Sep 29, 2026
9	Synechron	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	10001+	12,820 contacts →
	Partial evidence “At Synechron, we believe in the power of digital to transform businesses for the better.” Source: RevenueBase Database · checked Sep 29, 2026
10	PTC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	5,001-10,000	12,575 contacts →
	Indirect evidence “PTC (NASDAQ: PTC) unleashes industrial innovation with award-winning, market-proven solutions that enable companies to differentiate their products and services, improve…” Source: RevenueBase Database · checked Sep 29, 2026
11	Luxoft	Partial evidence	Zug, SwitzerlandHQ checked Sep 29, 2026	10001+	11,471 contacts →
	Partial evidence “Luxoft, a DXC Technology Company (NYSE: DXC), is a digital strategy and software engineering firm providing bespoke technology solutions that drive business change for customers…” Source: RevenueBase Database · checked Sep 29, 2026
12	Endava	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	10001+	9,653 contacts →
	Indirect evidence “For over two decades, we have been harnessing technology to drive meaningful change.” Source: RevenueBase Database · checked Sep 29, 2026
13	Devoteam	Indirect evidence	Levallois-perret, FranceHQ checked Sep 29, 2026	10001+	7,827 contacts →
	Indirect evidence “Devoteam is a AI-driven tech consulting firm specialised in cloud platforms, cyber, data, and sustainability.” Source: RevenueBase Database · checked Sep 29, 2026
14	Yash Technologies	Strong evidence	East Moline, IL, United StatesHQ checked Sep 29, 2026	5,001-10,000	7,769 contacts →
	Strong evidence “YASH Technologies is a consulting-led transformation partner with a proven track record of helping customers address their current and prospective digital transformation…” Source: RevenueBase Database · checked Sep 29, 2026
15	CAPCO	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	5,001-10,000	7,396 contacts →
	Strong evidence “Capco, a Wipro company, is a global technology and management consultancy specializing in driving digital transformation in the financial services industry.” Source: RevenueBase Database · checked Sep 29, 2026
16	Wavestone	Indirect evidence	100-101 Terrasse Boieldieu, FranceHQ checked Sep 29, 2026	1,001-5,000	6,190 contacts →
	Indirect evidence “Wavestone is a leading consulting firm operating at the intersection of business and technology.” Source: RevenueBase Database · checked Sep 29, 2026
17	Seidor	Partial evidence	Barcelona, SpainHQ checked Sep 29, 2026	5,001-10,000	6,133 contacts →
	Partial evidence “At SEIDOR we help drive the transformation and competitiveness of our clients through technology and innovation, always focusing on the human value and prioritizing talents and…” Source: RevenueBase Database · checked Sep 29, 2026
18	SII Poland	Strong evidence	Warszawa, PolandHQ checked Sep 29, 2026	5,001-10,000	5,519 contacts →
	Strong 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 29, 2026
19	ACT Digital	Strong evidence	Barueri, BrazilHQ checked Sep 29, 2026	5,001-10,000	5,473 contacts →
	Strong evidence “act digital is a global digital transformation consulting group.” Source: RevenueBase Database · checked Sep 29, 2026
20	Groupe SII	Indirect evidence	Paris, FranceHQ checked Sep 29, 2026	10001+	4,928 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
21	Xoriant	Partial evidence	Sunnyvale, CA, United StatesHQ checked Sep 29, 2026	5,001-10,000	4,204 contacts →
	Partial evidence “For over 36 years, Xoriant has been a trusted digital engineering specialist helping Fortune 500 companies accelerate their journey to becoming Software-Defined Businesses.” Source: RevenueBase Database · checked Sep 29, 2026
22	Accenture UK & Ireland	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	5,001-10,000	3,720 contacts →
	Partial evidence “Accenture helps the world’s leading enterprises reinvent by building their digital core and unleashing the power of AI to create value at speed for organisations across industries.” Source: RevenueBase Database · checked Sep 29, 2026
23	AHEAD	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,989 contacts →
	Indirect evidence “AHEAD accelerates strategy into execution by engineering integrated solutions across infrastructure, applications, data, and security.” Source: RevenueBase Database · checked Sep 29, 2026
24	BRQ Digital Solutions	Strong evidence	São Paulo, BrazilHQ checked Sep 29, 2026	1,001-5,000	2,919 contacts →
	Strong evidence “Since 1993 creating the next generation of digital solutions, BRQ has established itself as a leader and one of the largest Digital Transformation companies in Brazil.” Source: RevenueBase Database · checked Sep 29, 2026
25	Hexagon Asset Lifecycle Intelligence	Indirect evidence	Madison, AL, United StatesHQ checked Sep 29, 2026	10001+	2,630 contacts →
	Indirect evidence “Hexagon’s Asset Lifecycle Intelligence division helps clients design, construct and operate more profitable, safe and sustainable industrial facilities.” Source: RevenueBase Database · checked Sep 29, 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: refinery digital transformation consultants. 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 refinery digital transformation consultants.
Partial evidence: Its own public description names part of refinery digital transformation consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name refinery digital transformation consultants. 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 25,148 refinery digital transformation consultants worldwide

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Refinery digital transformation consultants worldwide at a glance

As of Sep 29, 2026

30.1%Verified-email coverage

48.2Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

14,194

11-50

7,157

51-200

2,502

201-500

656

501-1,000

265

1,001-5,000

231

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 refinery digital transformation consultants, 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 refinery digital transformation consultants are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “refinery digital transformation consultants”. 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 refinery digital transformation consultants), 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 refinery digital transformation consultants, 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, 364,987 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 29, 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.

Refinery digital transformation consultants by location

158 lists · largest first

Every Refinery digital transformation consultants 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 refinery digital transformation consultants, 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 refinery digital transformation consultants are there worldwide?

RevenueBase identified 25,148 refinery digital transformation consultants 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?

Infosys, headquartered in Bangalore, tops this list with the largest team on record.

Which country has the most refinery digital transformation consultants?

The United States leads with 2,955 companies, followed by India (2,200) and Germany (1,657). Every refinery digital transformation consultants list by country and city is linked on this page.

Which city has the most refinery digital transformation consultants?

London leads with 608 headquartered companies, followed by Paris (557) and Sao Paulo (317).

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 364,987 verified decision-maker contacts tracked across these 25,148 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 29, 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.