Company lists · Data refreshed September 2026

Top 25 Data migration consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,857 companies tracked

RevenueBase identified 1,857 data migration consulting firms worldwide as of September 2026 and tracks 30,241 professional contacts across them, including 5,542 with verified work emails. The United States is the largest market and London the largest hub.

This list covers data migration 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 28, 2026. Country and city lists for data migration 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 28, 2026 86% judged on-target in blind review

1,857Companies

30,241Contacts tracked

5,542Verified emails

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The 25 largest data migration consulting firms worldwide

Ranked by team size

Top 25 of 1,857 data migration consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to data migration 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	Chain-Sys Corporation	Partial evidence	Rocklin, CA, United StatesHQ checked Sep 28, 2026	501-1,000	1,280 contacts →
	Partial evidence “ChainSys is an innovator in the data management and business platform implementation (ERP) space.” Source: RevenueBase Database · checked Sep 28, 2026
2	Infomotion Gmbh	Strong evidence	Frankfurt Am Main, GermanyHQ checked Sep 28, 2026	501-1,000	447 contacts →
	Strong evidence “INFOMOTION GmbH, headquartered in Frankfurt am Main, is the leading consulting company for data performance: From data analytics to digital transformation, more than 420…” Source: RevenueBase Database · checked Sep 28, 2026
3	MST	Strong evidence	Holliston, United StatesHQ checked Sep 28, 2026	n/a	437 contacts →
	Strong evidence “Product and Data Consulting -Product Management -Database Management -Web and Application Development -ETL for Large Datasets” Source: RevenueBase Database · checked Sep 28, 2026
4	Natuvion	Indirect evidence	Walldorf, GermanyHQ checked Sep 28, 2026	501-1,000	415 contacts →
	Indirect evidence “Natuvion is a digital moving company.” Source: RevenueBase Database · checked Sep 28, 2026
5	Intone	Partial evidence	Iselin, NJ, United StatesHQ checked Sep 28, 2026	501-1,000	411 contacts →
	Partial evidence “Incorporated in the year 2003 at New Jersey, USA, Intone Networks Inc.(Intone) is an ISO 27001:2013 and 9001:2015 certified leading IT consulting firm, specializing on IT…” Source: RevenueBase Database · checked Sep 28, 2026
6	Northbay Solutions	Partial evidence	Andover, MA, United StatesHQ checked Sep 28, 2026	201-500	388 contacts →
	Partial evidence “NorthBay is AWS Premier Consulting Partner and also partnered with Snowflake, RiverMeadow and CloudRail-IIoT in support of our Customers’ AWS cloud journeys.” Source: RevenueBase Database · checked Sep 28, 2026
7	MODAK	Partial evidence	Deer Park, IL, United StatesHQ checked Sep 28, 2026	201-500	346 contacts →
	Partial evidence “Modak is a solutions company that empowers enterprises to manage and utilize their data landscape effectively.” Source: RevenueBase Database · checked Sep 28, 2026
8	Transitional Data Services - TDS	Partial evidence	Westborough, MA, United StatesHQ checked Sep 28, 2026	51-200	316 contacts →
	Partial evidence “TDS provides software and services to accelerate and de-risk the complex, end-to-end process for data center and IT transformations.” Source: RevenueBase Database · checked Sep 28, 2026
9	Artha Solutions	Strong evidence	Scottsdale, AZ, United StatesHQ checked Sep 28, 2026	201-500	254 contacts →
	Strong evidence “Artha Solutions is a well-known business technology consulting firm that helps businesses maximize the value of their data as a corporate asset by implementing corporate strategy…” Source: RevenueBase Database · checked Sep 28, 2026
10	Dgliger Consulting	Indirect evidence	Gurgaon, IndiaHQ checked Sep 28, 2026	201-500	207 contacts →
	Indirect evidence “At DGLiger, we are architects of transformation, dedicated to enabling organizations to thrive through the development of strong business and technology infrastructures.” Source: RevenueBase Database · checked Sep 28, 2026
11	Astadia	Partial evidence	St Louis, MO, United StatesHQ checked Sep 28, 2026	201-500	206 contacts →
	Partial evidence “Astadia is the industry leader for mainframe migrations and modernizations.” Source: RevenueBase Database · checked Sep 28, 2026
12	Dataterrain, INC	Partial evidence	Palo Alto, CA, United StatesHQ checked Sep 28, 2026	51-200	160 contacts →
	Partial evidence “DataTerrain specializes in Business Intelligence migration through an automation-driven approach, with deep expertise in any-to-any BI migration.” Source: RevenueBase Database · checked Sep 28, 2026
13	Mlogica	Indirect evidence	Las Vegas, NV, United StatesHQ checked Sep 28, 2026	201-500	157 contacts →
	Indirect evidence “Founded in 2004 by visionaries from leading technology organizations, mLogica’s leaders envisioned a faster, more efficient way of modernizing IT infrastructures to eliminate the…” Source: RevenueBase Database · checked Sep 28, 2026
14	Next Pathway	Partial evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	139 contacts →
	Partial evidence “Next Pathway is an enterprise AI company specializing in automated code migration and cloud modernization.” Source: RevenueBase Database · checked Sep 28, 2026
15	Brickclay	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	138 contacts →
	Partial evidence “As a trusted partner for businesses and consultancies, we specialize in data engineering, data sciences, cloud solutions, analytics, and business intelligence, helping…” Source: RevenueBase Database · checked Sep 28, 2026
16	Prodato	Partial evidence	Nürnberg, GermanyHQ checked Sep 28, 2026	51-200	137 contacts →
	Partial evidence “Processes, data, organization - that's what PRODATO stands for.” Source: RevenueBase Database · checked Sep 28, 2026
17	Vision Technology Consulting A Vetece Company	Partial evidence	Kuala Lumpur, MalaysiaHQ checked Sep 28, 2026	51-200	113 contacts →
	Partial evidence “VTC, a VETECE company, started in 2003 specializing in Enterprise Integration & Data Management Solution services to assist our clients to succeed in digital innovation by…” Source: RevenueBase Database · checked Sep 28, 2026
18	Smart Data	Partial evidence	Dayton, OH, United StatesHQ checked Sep 28, 2026	51-200	111 contacts →
	Partial evidence “Smart Data helps organizations modernize data platforms, build production-grade software, and implement AI that delivers measurable business results.” Source: RevenueBase Database · checked Sep 28, 2026
19	MMC Convert	Partial evidence	Chicago, United StatesHQ checked Sep 28, 2026	51-200	107 contacts →
	Partial evidence “Over the past 12 years, MMC Convert has successfully completed over data conversions from various accounting software platforms to leading solutions like Xero, QuickBooks Online…” Source: RevenueBase Database · checked Sep 28, 2026
20	Bismart, Business Intelligence Specialist Services	Strong evidence	Barcelona, SpainHQ checked Sep 28, 2026	51-200	102 contacts →
	Strong evidence “Bismart is a technology consulting firm specialized in Data Management and Analytics solutions and services awarded by Microsoft as Best Worldwide Partner.” Source: RevenueBase Database · checked Sep 28, 2026
21	Envitia	Strong evidence	Horsham, United KingdomHQ checked Sep 28, 2026	51-200	99 contacts →
	Strong evidence “Envitia is an IT services and consulting company, specialising in complex data challenges.” Source: RevenueBase Database · checked Sep 28, 2026
22	Elyadata	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	98 contacts →
	Partial evidence “elyadata unites the power of scientific expertise and business acumen to crack the code of data transformation.” Source: RevenueBase Database · checked Sep 28, 2026
23	Prominence Advisors	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	94 contacts →
	Partial evidence “Founded in 2011 by former Epic leaders, Prominence empowers healthcare organizations to execute strategic data initiatives with confidence.” Source: RevenueBase Database · checked Sep 28, 2026
24	Litextension	Partial evidence	Nam Tu Liem, United StatesHQ checked Sep 28, 2026	201-500	93 contacts →
	Partial evidence “Founded in 2011 by a group of eCommerce experts, LitExtension is determined to create a go-to migration solution for e-merchants in needs of replatforming.” Source: RevenueBase Database · checked Sep 28, 2026
25	Ittstar Consulting LLC	Indirect evidence	Alpharetta, GA, United StatesHQ checked Sep 28, 2026	51-200	88 contacts →
	Indirect evidence “ITTStar is a full-fledged IT consultant for businesses looking to adopt cloud architecture and cloud-based technologies.” Source: RevenueBase Database · checked Sep 28, 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: data migration 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 data migration consulting firms.
Partial evidence: Its own public description names part of data migration consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name data migration 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 1,857 data migration consulting firms worldwide

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Data migration consulting firms worldwide at a glance

As of Sep 28, 2026

18.3%Verified-email coverage

16.3Average contacts per company

1-10Median size (employees)

2.6%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,103

11-50

549

51-200

163

201-500

501-1,000

1,001-5,000

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 data migration 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 data migration consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “data migration 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 data migration 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 data migration 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, 5,542 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 28, 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.

Data migration consulting firms by location

11 lists · largest first

Every Data migration 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 data migration 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 data migration consulting firms are there worldwide?

RevenueBase identified 1,857 data migration 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?

Chain-Sys Corporation, headquartered in Rocklin, tops this list with the largest team on record.

Which country has the most data migration consulting firms?

The United States leads with 486 companies, followed by the United Kingdom (152) and India (137). Every data migration consulting firms list by country and city is linked on this page.

Which city has the most data migration consulting firms?

London leads with 48 headquartered companies, followed by Paris (32) and Melbourne (21).

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 5,542 verified decision-maker contacts tracked across these 1,857 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 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 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.