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Technical Vocabularyadjective · /ɒn ˈpremɪs/

on-premise

on-premise — Software or infrastructure installed and run on a company's own servers and computers at their physical location, rather than hosted in the cloud or by a third party.

In simple English

On-premise (also written as on-premises) describes a deployment model where an organization maintains and operates its own IT infrastructure. This contrasts with cloud-based solutions where a vendor manages the servers and data remotely. In tech companies, choosing on-premise deployment means the company has full control over the software, data, and security, but also bears responsibility for maintenance, updates, and hardware costs. Many enterprises prefer on-premise solutions for sensitive applications, legacy systems, or when they need complete customization and control. The term is commonly used in discussions about IT architecture, software licensing, and digital transformation initiatives.

How to say it: Many people say "on-prem". "On-premises" is the correct formal form.

Understand what on-premise software deployment means and how it differs from cloud solutions.

At a glanceCEFR B2
Commonness4/5
Versatility4/5
FormalityCasualFormalNeutral
Spoken ↔ WrittenSpokenWrittenBoth
Directness ↔ DiplomaticDirectDiplomaticDirect
RegionUS and UK

Say it like this

  • We host our application on-premise for security reasons.
  • The client requires an on-premise solution, not SaaS.
  • Our legacy systems run on-premise infrastructure.

Use it at work

With clients

  • The bank wants an on-premise version.
  • Do you offer on-premise deployment?

Planning

  • Supporting on-premise doubles our testing work.
  • We're moving from on-premise to the cloud.

Comparing

  • On-premise gives more control, but costs more to run.
  • Most of our customers are cloud, but a few are on-premise.

Don't say this

✕We deployed the solution in the cloud, so it is on-premise.
✓We deployed the solution in the cloud, so it's cloud-based.

On-premise means hosted on the company's own servers, not in a cloud provider's data center.

Don't mix it up

How on-premise differs from similar terms
TermWhat it isWho writes or uses itWhen
on-premiseSoftware runs on your own serversIT, infraRegulated industries
cloudRuns on a provider's serversInfra teamsMost modern apps
hybrid cloudMix of bothInfra teamsGradual moves

Practice

Try it

4 quick exercises

Pick the most natural phrasing

1. Your manager asks where your database is hosted. Which sounds most natural?

Complete the sentence

2. The bank rejected the cloud solution and insisted on an _______ system for regulatory compliance.

Spot the mistake

3. Which sentence uses on-premise incorrectly?

Rewrite naturally

4. Rewrite using on-premise: 'We keep our software running on computers in our office instead of using someone else's internet servers.'

Say it out loud

Phrase 1 of 3

"We host our application on-premise for security reasons."

We don't save your recording. The word check uses your browser's speech recognition.

More about on-premise

Real examples(3)

  • in a standup

    "We need to upgrade the on-premise servers before the quarterly audit."

  • in a team meeting

    "The financial team insists on keeping sensitive data on-premise rather than moving to the cloud."

  • in an architecture discussion

    "Should we offer both cloud and on-premise deployment options for this product?"

More mistakes(1)

Handle with care. Often confused with 'on premises' (physical location). On-premise refers to software deployed at a company's own location, not in the cloud.

  • ✕The on-premise server is located in the building.
    ✓The on-premise infrastructure is located in the building.

    On-premise is an adjective describing a deployment model, not just the physical location of hardware.

Other forms(2)

  • on-premise adjective

    "Our company uses on-premise software for accounting."

  • on-premise (as modifier) noun

    "The on-premise option gives us more control."

Often used with(4)

  • on-premise deployment · The method of installing software at a company's own location
  • on-premise infrastructure · The servers and systems owned and operated by the company itself
  • on-premise solution · A software product installed and maintained by the organization rather than a vendor
  • on-premise vs cloud · A common comparison in IT strategy discussions

Similar words(3)

  • self-hosted · Similar meaning but emphasizes the company manages it themselves
  • on-site · Refers to physical location; less specific about the software model
  • private deployment · Emphasizes exclusivity and control rather than location

Opposites(4)

  • cloud-based
  • SaaS
  • hosted
  • cloud-hosted

Questions(5)

What does on-premise mean in software engineering?
On-premise refers to software and infrastructure that a company installs, maintains, and operates on its own servers and computers at their physical location. The organization has complete control over the system, data, and security rather than relying on a third-party vendor or cloud provider.
How do you use on-premise in a sentence at work?
Use it as an adjective to describe a deployment model or system type. For example: We are evaluating on-premise solutions for our enterprise needs or Our on-premise infrastructure requires regular updates. It is commonly used in IT strategy, architecture, and vendor discussions.
Is on-premise formal or informal?
On-premise is neutral and professional. It is used in both formal business meetings and casual team discussions. It appears in technical documentation, contracts, and presentations without any informal tone.
What is the difference between on-premise and cloud-based?
On-premise software runs on a company's own servers at their location, giving them full control but requiring maintenance costs. Cloud-based software runs on a vendor's remote servers, requiring less IT overhead but less direct control and potential security concerns for sensitive data.
Why do companies choose on-premise solutions?
Companies choose on-premise for data security, regulatory compliance, customization needs, integration with legacy systems, or when they prefer complete control. It is common in finance, healthcare, and government sectors where data sensitivity is critical.
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