Company lists · Data refreshed September 2026
Top 25 Zero downtime migration worldwide
RevenueBase identified 241 zero downtime migration worldwide as of September 2026 and tracks 2,707 professional contacts across them, including 863 with verified work emails. The United States is the largest market and London the largest hub.
This list covers zero downtime migration 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 22, 2026. Country and city lists for zero downtime migration 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.
The 25 largest zero downtime migration worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 415 contacts → | ||||
Indirect evidence “Natuvion is a digital moving company.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 206 contacts → | ||||
Partial evidence “Astadia is the industry leader for mainframe migrations and modernizations.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 107 contacts → | ||||
Indirect 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 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 85 contacts → | ||||
Indirect evidence “Data Driven and Data First!” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 65 contacts → | ||||
Partial evidence “Helix International specializes in document and content migrations.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 55 contacts → | ||||
Indirect evidence “We have a passion for data.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 48 contacts → | ||||
Partial evidence “DataMC is a leader in the delivery of highly complex data migrations, specialising in the end-to-end delivery of ERP, CRM, industry specific, bespoke and business transformation…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 38 contacts → | ||||
Indirect evidence “WANdisco is the data activation company.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 37 contacts → | ||||
Partial evidence “Cirrus Data Solutions Inc.(Cirrus Data) is a privately-held developer of enterprise-class data management software solutions for automating data migration, data protection and…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 35 contacts → | ||||
Partial evidence “Move Solutions is an IT services company specialized in development and transformation of information systems : Data Migration, Modernization and Maintenance.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 34 contacts → | ||||
Indirect evidence “At Datamotive, we're not just about moving data-we're architects of digital fluidity, and pioneers in workload portability.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 34 contacts → | ||||
Partial evidence “Since pioneering the world’s first email archive migration tool in 2006, Transvault has delivered over 3,500 projects across 56 countries.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 34 contacts → | ||||
Partial evidence “Data Migration & Integration as a Service (IaaS) Migration | SaaS | API & Microservices | AI & ML Arbaan GT is a trusted partner for enterprises looking to scale efficiently and…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 32 contacts → | ||||
Indirect evidence “Valiance Partners was merged with NNIT in October 2022.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 31 contacts → | ||||
Partial evidence “Datalynx Ltd is a UK-based consultancy with over 20 years’ experience, dedicated to delivering data migration, data integration, data quality and data architecture & analytics…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 28 contacts → | ||||
Partial evidence “Data Strategies Interchange is a leading provider of large-scale data migration and conversion services to Fortune 500 and Global companies that need to upgrade from older…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 26 contacts → | ||||
Partial evidence “Trinisys, a Harmony Healthcare IT Company, is leading major enterprise data migrations, integrations, and web application solutions for healthcare, insurance, government, payer…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 25 contacts → | ||||
Indirect evidence “Datalynx is an Australian company providing innovative, world-class enterprise data management software.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 21 contacts → | ||||
Partial evidence “Wij zijn Your Data Company, specialisten in data migraties en data-management.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 19 contacts → | ||||
Indirect evidence “Data Confidence.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 19 contacts → | ||||
Indirect evidence “PrimaryIO’s brings a portfolio of software and tech-enabled services to guide the journey from on-premises to hybrid to cloud.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 18 contacts → | ||||
Indirect evidence “Zengines helps financial services enterprises position their data for AI, usable across every system change, and explainable across decades of legacy code.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 18 contacts → | ||||
Partial evidence “UCT is the leading service provider for data conversion, migration, and integration in the financial services marketplace.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
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: zero downtime migration. 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 zero downtime migration.
- Partial evidence
- Its own public description names part of zero downtime migration, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name zero downtime migration. 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 241 zero downtime migration worldwide
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Zero downtime migration worldwide at a glance
As of Sep 22, 2026Companies by employee count
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 zero downtime migration, 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 zero downtime migration are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “zero downtime migration”. 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 zero downtime migration), 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 zero downtime migration, 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, 863 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 22, 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.
Zero downtime migration by location
2 lists · largest firstEvery Zero downtime migration list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 zero downtime migration, 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 zero downtime migration are there worldwide?
RevenueBase identified 241 zero downtime migration 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?
Natuvion, headquartered in Walldorf, tops this list with the largest team on record.
Which country has the most zero downtime migration?
The United States leads with 69 companies, followed by the United Kingdom (26). Every zero downtime migration list by country and city is linked on this page.
Which city has the most zero downtime migration?
London leads with 8 headquartered companies, followed by Bangalore (4) and Sydney (4).
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 863 verified decision-maker contacts tracked across these 241 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 22, 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.