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Private Catalyst
For organisations whose data cannot leave their own network

We install open-weight language models on your hardware and build the automation that runs on them.

Then we hand the whole system to your engineers, on an exit date agreed in writing before we start.

We take no margin on hardware or licences, and we sell no platform of our own.

Your network · Egress — none
Claims teamSummarise the prior-authorisation packet for case 2207 and draft the payer letter.
Open-weight model · your hardwareSummary and letter drafted. Nothing is filed until a reviewer approves it.
Approval gateWaiting for a reviewer

Who this is for

Healthcare

Discharge summaries, prior-authorisation packetsPHI, charts, dictation

Legal

Discovery review, clause extractionPrivileged material

Financial services

Analyst summarisation, KYC file reviewPositions, PII, MNPI

Public sector

Enclave document triage, FOI redactionITAR and CUI material

Industrial

Maintenance manuals, test-log searchProcess IP, formulations

Check a vendor quote against this

Per-token pricing grows with adoption. Owned GPUs cost electricity. Weights only, two bytes per parameter, before KV cache and a second node.

7–8B4-bit5 GB

One workstation card — RTX 6000 Ada

Classification, extraction, redaction

7–8Bbf1616 GB

One L40S, with room to batch

The same, at department scale

30–34Bbf1664 GB

One H100, or two L40S

Drafting over retrieved documents

70B4-bit40 GB

One H100 (80 GB)

Most internal knowledge work

70Bbf16140 GB

Two H100, tensor-parallel

Quality that must not be argued about

Large MoE4-bit120 GB+

Two to four H100, or one MI300X

Reasoning work, fewer users

How an engagement runs

The workflow matters more than the model. Every action passes an approval gate.

Map

We read your proxy logs. Shadow usage is the requirements document.

Size

Hardware sized against real concurrency. Models benchmarked on your tasks.

Build

One workflow someone does daily, in production.

Hand over

We break it on purpose. Your engineers fix it while we sit behind them.

You keep the sizing memo, the cost model, the evaluation set and the runbook. Full method

[FOUNDER NAME] started Private Catalyst in [YEAR], after [N] years of platform infrastructure at [EMPLOYER]. [N] engineers, no sales team, no subcontracting without your agreement.

We sign your NDA before the first call, and references in regulated sectors are available on request.

Start here

Send us the workload that cannot leave your network.

Fixed fee, and you keep the memo either way.