Private AI for UK professional firms
Private AI that never leaves your building.
We install, run and support AI on a machine in your office, so your team gets the benefits without client data going to the cloud.
- Runs on a machine in your office
- One fixed monthly price
- Installed, trained and supported
Running in your office
Can the tenant end the Harcourt Street lease early? What notice do they need to give?
Yes. There is a tenant-only break on the fifth anniversary. The tenant must give at least six months' written notice, served at the landlord's registered office.
- Lease, Harcourt Street.pdf · p. 14
- Deed of variation.pdf · p. 2
Your team wants AI. Your clients expect confidentiality. One Premise gives you both.
The problem
Your team is already using AI. Where is your client data going?
- 01
Staff paste work into public tools
Letters, contracts, client emails. It's quick, it works, and it often happens before a firm has a policy in place.
- 02
That data leaves your control
Once it's typed into a public service, it sits on someone else's servers, under someone else's terms.
- 03
Banning AI means falling behind
Blocking the tools doesn't remove the need. Firms that use AI safely will do the same work in less time.
How it works
Three steps from a first conversation to a system your whole team uses.
- 01
Assess
We find where AI will save your team time, and which of your data is sensitive.
- 02
Install
A machine in your office, connected to your files, with your team trained to use it.
- 03
Run
We keep it updated, monitored and supported, for one fixed monthly fee.
What your team can do
The reading and writing that fills the week, done in minutes.
The same everyday help people get from public AI tools, working on your own documents and kept on your premises.
Summarise long documents
Bundles, reports and long email chains, reduced to the points that matter.
Draft letters and first drafts
A solid first version to edit, rather than a blank page.
Ask questions of your own files
Plain-English questions, with answers that reference the documents they came from.
Turn meeting notes into actions
Clear next steps and owners, straight from your notes.
What stays where
Everything your team types, uploads and reads stays inside your walls.
The AI runs on a small machine in your office. There is no outside AI service in the loop.
- Prompts, documents and answers are processed on your premises
- We can't see your data. Remote support happens only with your approval, and it's logged
- Nobody overseas can change the terms or switch it off
Who it's for
Built for firms whose clients trust them with sensitive information.
Law firms
5 to 50 fee earners
Client confidentiality, privilege, and matter documents in public AI tools.
Accountancy practices
Partners and practice managers
Client tax and payroll data, and the peak-season workload.
- Coming soon
IFAs and wealth managers
Principals and compliance officers
Client financial data and expectations on data and outsourcing.
- Coming soon
Private clinics and dental groups
Practice owners and managers
Patient records, which are special category data.
How it compares
The benefits of AI, without handing over your client data.
Public AI tools are fine for general work. Confidential client work belongs on a system that never leaves the building.
One Premise
- Where client data is processed
- Your office
- How you pay
- One fixed monthly price
- Setup, training and support
- Included
- Who can change the terms or switch it off
- You, under a fixed contract
Public AI tools
- Where client data is processed
- The provider's servers, often overseas
- How you pay
- Per user, per month
- Setup, training and support
- Do it yourself
- Who can change the terms or switch it off
- The provider
Private cloud AI
- Where client data is processed
- A data centre run by someone else
- How you pay
- Per user or by usage
- Setup, training and support
- Varies
- Who can change the terms or switch it off
- The provider
Buying an AI box
- Where client data is processed
- Your office
- How you pay
- Large upfront purchase, from around £30,000
- Setup, training and support
- Up to you
- Who can change the terms or switch it off
- You
| Public AI tools | Private cloud AI | Buying an AI box | One Premise | |
|---|---|---|---|---|
| Where client data is processed | The provider's servers, often overseas | A data centre run by someone else | Your office | Your office |
| How you pay | Per user, per month | Per user or by usage | Large upfront purchase, from around £30,000 | One fixed monthly price |
| Setup, training and support | Do it yourself | Varies | Up to you | Included |
| Who can change the terms or switch it off | The provider | The provider | You | You, under a fixed contract |
Packages
Start with an audit. Keep it running for one fixed monthly price.
Clear “from” prices, so you know where you stand before we talk.
- Step 1
AI Readiness Audit
Find out where AI will save your team time, and which data needs protecting, before you spend anything on hardware.
From£2,500fixed fee
Credited in full against an install
- Half-day session with your partners and team
- Map of the workflows worth automating
- Review of how sensitive your data is
- Written recommendation you can keep
- Step 2
Private AI Install
A machine in your office, connected to your files, with your people set up and trained to use it well.
From£3,500one-off setup
One-off
- Hardware supplied and set up on site
- Connection to your files and folders
- User accounts and access controls
- Staff training session
- Step 3Ongoing
Managed Private AI
Everything kept running for one fixed monthly price. No per-user or per-query charges, ever.
From£595a month
24 or 36-month minimum
- Hardware included
- Monitoring and security updates
- Model upgrades as better ones arrive
- Support during UK business hours
Why One Premise
Calm, specific and accountable. The way your firm already works.
Your data stays on site
It runs on a machine in your office. Prompts, documents and answers stay there.
We can't see your data
Remote support only with your approval, and every session is logged.
A UK company
Not dependent on an overseas provider who can change the terms or switch it off.
One fixed price
No per-user or per-query charges. Setup, training and support included.
You won't find badges we haven't earned or quotes we haven't been given on this site. Certifications and client stories will appear here when they're real.
Questions
What partners ask us first.
What happens if the machine fails?
We monitor the unit and are alerted if something goes wrong. Managed plans include a replacement unit if it fails. Your documents stay on your own systems throughout, so they are unaffected.
Is it as good as ChatGPT?
For drafting, summarising and answering questions about your own documents, it is strong and holds up well for day-to-day work. For the very hardest reasoning tasks, the largest cloud models are still ahead. We'll show you how it performs on your own documents before you commit.
Can it connect to our existing systems?
Usually, yes. It works with shared drives and document folders, and we check your case, practice or document management system during the audit. If something can't be connected safely, we'll tell you rather than force it.
How long does setup take?
Most of the time goes on the audit and on connecting your files, not on the hardware. We give you a firm timeline at the end of the audit, once we know what needs connecting.
Can you see our data?
No. The system runs on a machine in your office. We only connect for support with your approval, and every session is logged.
What happens if we stop?
At the end of your term you can renew or stop. If you stop, we collect the unit and securely wipe it. Your documents were never moved, so they stay exactly where they are.
Next step
See it working on your own documents.
Book a 30-minute call. We'll talk through how your team works, what's sensitive, and show you what private AI can do with the kind of work your firm does.