Curated Supplier · Immutable Storage

SteelDome — ransomware-proof storage capacity without a forklift upgrade.

SteelDome Cyberstorage turns your existing hardware into software-defined, immutable, air-gapped storage for unstructured data. When ransomware finds the backups too, the question stops being "do we have a copy" and becomes "is the copy itself tamper-proof." SteelDome's answer is a storage layer designed so the data can't be encrypted or deleted in place — on-prem, hardware-agnostic, no rip-and-replace.

What SteelDome actually does.

SteelDome is a cyberstorage software company, not a managed DR provider. InfiniVault sits underneath your unstructured data and makes it immutable and air-gapped — so even an attacker with admin credentials can't encrypt or wipe the protected copy. Because it's software-defined and hardware-agnostic, you keep your existing storage estate. This is a layer you operate yourself, not a service someone runs for you — which is exactly the point for orgs that want ransomware-proof capacity without handing data to a third party.

Capabilities · A short list

Immutable storage (InfiniVault) Protected data cannot be encrypted, altered, or deleted in place — the storage layer enforces immutability regardless of credentials.
Air-gapped on-prem Logical air-gapping keeps the protected copy isolated from the attack surface, on your own premises.
Software-defined, hardware-agnostic Runs on your existing hardware. No forklift upgrade, no vendor-locked appliance.
Unstructured data focus Built for the files, shares, and object data that ransomware actually targets at scale.
Storage layer, you operate it This is infrastructure you control — not a managed DRaaS. Pairs with managed services where you want both.

Who this fits.

Best Fit

Org wanting ransomware-proof on-prem capacity

You have an existing storage estate and want it made immutable and air-gapped without ripping out hardware. SteelDome is the storage-layer answer.

Strong Fit

Data-residency or air-gap mandates

If data must stay on-prem and isolated — regulated, classified, or air-gap-by-policy environments — a software-defined immutable layer you operate yourself fits the posture.

Mixed Fit

Teams wanting a fully managed service

SteelDome is a storage layer you run, not a DRaaS someone operates for you. If you want hands-off managed recovery, pair it with — or compare against — OTAVA.

Less Likely

Cloud-native shops with no on-prem footprint

If you have no on-prem storage to protect and want immutable object storage in the cloud, Storj's decentralized model is a closer shape. Brief that instead.

How SteelDome sits against the field.

This page

SteelDome

Software-defined immutable on-prem storage
InfiniVault — air-gapped, hardware-agnostic
Unstructured data, ransomware-proof layer
You operate it — not a managed service
Best fit: on-prem capacity without a forklift upgrade

Adjacent

Storj

Decentralized immutable object storage
S3-compatible, cloud-distributed not on-prem
Immutability via distribution, not local air-gap
Pairs as an off-site immutable target
Available through our sourcing network

Different shape

OTAVA

Managed DRaaS and air-gapped backup
A service someone runs, not a storage layer
Compliance-focused hybrid cloud
Different question — managed recovery vs. storage
Available through our sourcing network