Company lists · Data refreshed September 2026
Top 25 File synchronization services based in the United States
RevenueBase identified 95 file synchronization services headquartered in the United States as of September 2026 and tracks 4,584 professional contacts across them, including 2,161 with verified work emails. San Francisco is the largest hub.
This list covers file synchronization services headquartered in the United States, 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 20, 2026.
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 file synchronization services based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,428 contacts → | ||||
Indirect evidence “Dropbox is the one place to keep life organized and keep work moving.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 377 contacts → | ||||
Indirect evidence “ShareFile is now part of Progress.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 120 contacts → | ||||
Partial evidence “FileCloud is a hyper-secure EFSS (enterprise file sync and share) platform that provides industry leading compliance, data governance, data leak protection, data retention and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 94 contacts → | ||||
Partial evidence “Files.com is a SaaS file automation and integration platform that enables organizations to securely transfer, share, and store files between users, teams, and organizations.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 42 contacts → | ||||
Indirect evidence “Every year, 12 trillion business emails with attachments are sent, resulting in $1 trillion in Intellectual Property lost.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 40 contacts → | ||||
Indirect evidence “MediaFire is a cloud storage service that helps people store, organize, and share data via the Internet.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 36 contacts → | ||||
Partial evidence “Suite offers cloud storage that solves the biggest headaches faced by dispersed & hybrid creative teams today-no downloading or syncing files required.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 29 contacts → | ||||
Indirect evidence “Software for Mission Critical Collaboration SpiderOak enables teams to complete their mission without having to make compromises.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 29 contacts → | ||||
Partial evidence “Anchor allows IT service providers to offer their customers cloud technology to backup, share, collaborate and access their files from anywhere.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 15 contacts → | ||||
Indirect evidence “Founded in 2008 as a Florida C corporation, Gladinet Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 15 contacts → | ||||
Indirect evidence “We started this company because we had the same problems as you.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 11 contacts → | ||||
Indirect evidence “With SugarSync you can backup, access, sync and share all of your documents, photos, music and movies so that you can access them from your laptop, iPhone, iPad, Android or any…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 10 contacts → | ||||
Strong evidence “FilesAnywhere, headquartered in Bedford, Texas, is a cloud content management and file sharing service for businesses that offers cloud storage, file synchronization, personal…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 10 contacts → | ||||
Indirect evidence “Everleagues provides the technology to bring organizations, clients, applications and data all in one secure location.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 10 contacts → | ||||
Indirect evidence “We.Team makes team communication simpler, more structured and more productive.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 10 contacts → | ||||
Indirect evidence “Slik protects your personal and enterprise data with advanced cybersecurity.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 8 contacts → | ||||
Indirect evidence “PhotoCircle is a private and secure media-sharing platform that helps you easily connect, share, and organize photos, videos, and documents-all in one simple, easy-to-use app.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 7 contacts → | ||||
Indirect evidence “MrOwl is a Social Cloud Storage™ platform that brings together the best of search, social, and the cloud all in one app.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 7 contacts → | ||||
Partial evidence “Onehub provides secure, cloud-based file storage and sharing for businesses of every size.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 6 contacts → | ||||
Partial evidence “Dokkio gives your team an intelligent way to organize, find, understand, and collaborate on the files your team uploads and shares.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 6 contacts → | ||||
Partial evidence “Morro Data enables high-performance collaboration across global sites by offering a Hybrid Cloud NAS solution to sync, lock, and protect office and design files across multiple…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 5 contacts → | ||||
Indirect evidence “Luceris doesn’t replace your systems.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 5 contacts → | ||||
Indirect evidence “Every content collaboration solution on the market requires the same tradeoff: to work together, you must store your content in someone else's cloud.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 4 contacts → | ||||
Partial evidence “TakeTurns is your one place to share, collect, and collaborate on business-critical documents and files with your clients, vendors, partners – or any external organization.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 4 contacts → | ||||
Indirect evidence “ElephantDrive is a leader in cloud backup and storage solutions, delivering services directly to individuals and small business and as an enabling platform to strategic partners.” Source: RevenueBase Database · checked Sep 20, 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: file synchronization services. 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 file synchronization services.
- Partial evidence
- Its own public description names part of file synchronization services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name file synchronization services. 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 95 file synchronization services based in the United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,161 reachable decision-makers.
Free signup · no credit card
File synchronization services based in the United States at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 95 companies.
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 file synchronization services, 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.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “file synchronization services”. 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 file synchronization services), 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 file synchronization services, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- 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, 2,161 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 20, 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.
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 file synchronization services, 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 file synchronization services are there based in the United States?
RevenueBase identified 95 file synchronization services headquartered in the United States 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?
Dropbox, headquartered in San Francisco, tops this list with the largest team on record.
Which city has the most file synchronization services?
San Francisco leads with 11 headquartered companies, followed by New York (9) and Los Angeles (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 2,161 verified decision-maker contacts tracked across these 95 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 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 95 file synchronization services based in the United States. Start with a free account, no credit card.
Download this list →Related lists
File synchronization services by geography
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- File synchronization services based in Germany
- File synchronization services based in the United Kingdom
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States