Best Business File Sharing Platforms for Contractors

Cloud storage deeply built into Microsoft 365, with ransomware recovery and huge file support.

Editor's takeOneDrive scores 9.7 out of 10 for market credibility, the top mark among file sharing tools rated here. More than 85 percent of the Fortune 500 use it, and Microsoft leads Gartner's Content Services rankings. Files Restore rolls back a full account up to 30 days after a ransomware attack, though sync slows past 300,000 files.

Secure file transfer platform with unlimited file sizes, browser-based PGP, and dedicated China connectivity.

Editor's takeMaytech's Quatrix China service moves files up to 40 times faster than typical methods, with no file size limits, solving a real pain point for firms sending data in and out of China. The platform supports unlimited file sizes and browser-based PGP encryption with no extra plugin needed. Business plans start at $9 per user monthly, but the Enterprise Security Module covering SSO and SFTP activation is billed separately, and there is a 2-user purchase minimum.

Hybrid cloud file server for construction teams with global AutoCAD file locking and preserved NTFS permissions.

Editor's takeCentreStack turns an existing file server into a mapped cloud drive, so remote teams keep familiar drive letters without running a VPN. Global file locking stops two people from overwriting the same AutoCAD drawing at once. Pricing runs $10 a user monthly standard, or about $4 for MSP partners, though sync speed lags the local drive on very large files.

Cloud file sync and collaboration platform with e-signatures, video review, and zero-knowledge encryption.

Editor's takeDropbox built its reputation on sync speed and reliability, backed by 700 million registered users. It has since added e-signatures, video review, and zero-knowledge end-to-end encryption for teams. In 2024 it also ended unlimited storage on Advanced plans, capping shared storage at 15TB for three users.

Hybrid file-sharing platform syncing cloud and on-prem storage, built for regulated industries like AEC.

Editor's takeEgnyte's hybrid architecture syncs cloud storage with on-premises appliances through Smart Cache and Storage Sync, giving users a familiar mapped-drive experience while keeping files accessible even during internet outages. It backs regulated industries with CMMC-ready secure enclaves, behavioral ransomware detection, and ISO 27001 certification. Pricing starts at $22 per user monthly, but Reddit threads describe near-essential add-ons like Snapshot & Recovery as effectively mandatory extra costs, and the desktop sync client has documented reliability issues, including reporting false success after a failed sync.

Secure file sharing platform for contractors with unlimited storage, browser CAD previews, and 7-level permissions.

Editor's takeOnehub handles the file sizes construction teams actually deal with, up to 20GB via its FTP Gateway versus a 5GB cap through the web interface, and lets teams preview DWG and other CAD formats directly in the browser. Pricing is fully public, starting at $12.50 per user monthly, with unlimited storage available on Advanced plans at $20. It's purely a file repository though, with no built-in RFI or submittal tracking, and reviewers describe both the web and mobile interfaces as dated.

Compliance-focused document collaboration platform with e-signatures and virtual data rooms for regulated industries.

Editor's takeShareFile pairs bank-grade AES 256-bit encryption with SOC 2 Type 2, ISO 27001, and HIPAA certification, making it a fit for legal and healthcare firms handling sensitive files. Progress Software's $875 million acquisition brought over 86,000 customers into the fold. Every plan enforces a 3-to-5-user minimum, so solo practitioners pay for unused seats, and native document editing requires a separate Microsoft 365 license.

Hybrid cloud file sharing for AEC firms with unlimited file sizes, built-in CAD previews and ITAR-level compliance.

Editor's takeFileCloud removes the file size ceiling that trips up general cloud drives, and its hybrid architecture keeps heavy CAD data on local servers while still allowing remote access. Compliance is a genuine strength, with FIPS 140-2 encryption and support for ITAR and NIST 800-171. The AutoCAD viewer has a catch, since previews beyond the first draw on paid Autodesk flex tokens, and administrators say initial setup takes real effort.

Construction file sharing with 'Data Island' isolation, offline sync and built-in ransomware recovery.

Editor's takeRushFiles builds its pitch around isolation, using a Data Island architecture to keep each customer's data fully segregated, backed by ransomware rollback and offline sync for job sites without steady internet. It skips per-user pricing in favor of account-based billing, a plus for reseller partners. The tradeoff is stability, with users reporting the Windows desktop client crashing File Explorer and draining battery.