# StoneFly, Inc.

> StoneFly, Inc. is a Castro Valley, California enterprise storage company founded in 1996 that helped turn iSCSI into an industry standard - it registered iSCSI.com in March 1996 and shipped one of the first iSCSI storage appliances in 2002. Today it builds NAS, SAN, unified scale-out (USO), backup and disaster-recovery appliances, and cloud storage, all powered by its patented StoneFusion operating system and Air-Gapped Vault immutable, ransomware-resistant technology. A subsidiary of Dynamic Network Factory (DNF), StoneFly serves 10,000+ customers from SMBs to Fortune 500 and government - including deployments aboard US Navy Littoral Combat Ships and Virginia-class submarines.

- **Founded:** 1996
- **Headquarters:** Castro Valley, California, United States
- **Founders:** Mo Tahmasebi (Founder, President & CEO), Macy Tafreshian (Co-Founder & CFO)
- **Team size:** ~94 employees (LinkedIn)
- **Products:** StoneFusion OS, Air-Gapped Vault, USO (Unified Scale Out) Appliance, DR365 / DR365V, 365Vault
- **Notable:** Registered the iSCSI.com domain in March 1996 and helped make iSCSI an industry storage standard, Shipped one of the first iSCSI storage appliances in 2002, Named to CRN's Storage 100 / coolest Software-Defined Storage vendors five times, including 2025 and 2026

## Products & services

- **StoneFusion OS** — Patented 8th-generation storage virtualization operating system that powers StoneFly's NAS, SAN and unified appliances; also available standalone for bare-metal, Windows and Linux, with WORM, deduplication and ransomware protection.
- **Air-Gapped Vault** — Patented immutable and air-gapped storage technology that keeps backup copies physically and logically unreachable to defend against ransomware.
- **USO (Unified Scale Out) Appliance** — Single system that unifies SAN (iSCSI, Fibre Channel) plus NAS (NFS, SMB/CIFS) plus S3 object storage, with automated tiering across NVMe, SAS and cloud, scaling to virtually unlimited nodes.
- **DR365 / DR365V** — Disaster-Recovery-Site-in-a-Box appliances consolidating server, storage and backup; DR365V is a Veeam-Ready, air-gapped, immutable backup and replication appliance.
- **365Vault** — Enterprise backup solution that protects desktops, notebooks and servers to on-site and off-site/cloud repositories.
- **NAS, SAN & RAID Systems** — High-performance network-attached storage, iSCSI/Fibre Channel storage area networks, and RAID systems for physical, virtual and cloud environments.
- **Hyperconverged (USS) Appliances** — Hyperconverged infrastructure supporting VMware, Hyper-V, KVM, Citrix and Proxmox.
- **IP Video Surveillance Storage** — Purpose-built storage systems for IP video surveillance workloads.
- **365GDR** — AI-driven threat detection and response cybersecurity platform, available standalone or as an integrated upgrade.

## Achievements

- Registered the iSCSI.com domain in March 1996 and helped make iSCSI an industry storage standard
- Shipped one of the first iSCSI storage appliances in 2002
- Named to CRN's Storage 100 / coolest Software-Defined Storage vendors five times, including 2025 and 2026
- Holds multiple iSCSI and storage-virtualization patents (e.g. US 7,260,631 and US 6,915,354)
- Deployed aboard US Navy Littoral Combat Ships and Virginia-class nuclear submarines
- Reached 10,000+ customers, 50,000+ deployments and 2.5+ exabytes of deployed capacity

## Latest updates

- **2026-05** — Announced a company-wide AI expansion across storage, cybersecurity, backup/DR and cloud, including SIEM/XDR-embedded threat detection and a new 365GDR platform.
- **2026-05** — Named to CRN's 2026 Storage 100 as one of the coolest software-defined storage vendors.
- **2025-01** — Launched the DR365V M1 Mini, a compact ransomware-proof, Veeam-Ready, air-gapped and immutable backup and DR appliance.
- **2024-11** — Introduced FlexStor ScaleHA, a cloud-scale unified SAN/NAS/S3 configuration of the USO appliance with air-gapped, immutable ransomware protection.

## Links

- Website: https://stonefly.com
- LinkedIn: https://www.linkedin.com/company/stonefly-networks
- Twitter/X: https://twitter.com/stoneflyinc
- Instagram: https://www.instagram.com/stonefly.inc/
- Facebook: https://www.facebook.com/Stonefly/

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Profile page: https://yespress.io/stonefly-inc
Published by YesPress — https://yespress.io
Last updated: 2026-07-10