General contractor coordination
One accountable party over building shell, civil works, site logistics, permits and overall programme coordination.
We build and operate AI factories — at any size.
From a 100-GPU pilot to a 10,000-GPU cluster, one accountable team designs, builds, runs and certifies your AI infrastructure — then hands it back when you're ready. Same team, same SOPs, same SLAs.
657
Combined years of HPC experience
37
Senior architects & engineers
4×
TOP500 system designers on the team
<12mo
ISO 27001 + ISAE 3000 track record
What we do
From general contractor to GPU
One accountable party across the entire delivery stack. We coordinate the general contractor and every subcontractor beneath them — civil, power, cooling, network and hardware — down to the individual GPU running production workloads.
Power & cooling
MV/LV distribution, UPS, direct-liquid cooling and heat reuse — integrated with Schneider and Vertiv for low PUE at density.
Data-center fit-out
Racks, PDUs, containment, structured copper and fibre cabling, and full acceptance testing to a validated standard.
Network fabric
InfiniBand and Ethernet spine-leaf, storage and management networks — validated end-to-end with NCCL all-reduce.
Compute & storage
HGX / DGX integration, GPU burn-in, and parallel storage tiers on Weka, VAST and DDN — engineered to keep GPUs fed.
GPU & platform
OS, Slurm / Kubernetes, orchestration and performance validation — GPUs brought up to live, validated production workloads.
Approach
Capital is commoditized. Operations are not.
The scarce resource in AI infrastructure isn't money or GPUs — it's the small number of people who have actually run frontier-scale clusters in production. Everything we do is built around that team.
01
Operators, not resellers
Perhaps 200–400 engineers globally have delivered frontier-scale AI clusters in production. We are built around a team of them — already onboarded, already operational.
02
You want workloads, not infrastructure
You have data, regulators and investors — not a desire to run a data center or hire an HPC team. We take the whole stack so your people ship outcomes.
03
A hedge against the hardware curve
GPU generations obsolete on an ~18-month cycle. Customers fear the depreciation; our operating model is their way out.
Capabilities
Enterprise-first, sovereign-grade
Built from day one for the industries with the hardest requirements — regulated data, strict isolation, and workloads that can never touch the public cloud.
Enterprise-grade compliance
SOC 2, ISO 27001 and ISAE 3000 — with a track record of reaching certification in under twelve months. Built for pharma, finance, defense and sovereign programmes.
Hard multi-tenant isolation
Physically separated storage, dedicated VLANs and VRFs, per-tenant backends and full audit trails — regulation-ready for HIPAA, the EU AI Act and EHDS.
Air-gapped & sovereign
Fully isolated architectures with no external connectivity — self-hosted repositories, data-diode transfers and autonomous operations. Any jurisdiction, sovereign-grade.
Agentic & on-prem inference
Production agentic workflows and on-prem model serving — including air-gapped AI-assisted development — so sensitive data never leaves your environment.
24/7 operations & SRE
Round-the-clock monitoring, on-call response and SLA-backed uptime — the same operators who build the cluster keep it running in production.
Full audit & observability
Per-tenant audit trails, immutable logging and end-to-end telemetry — evidence-ready for auditors and regulators at any time.
Who we serve PharmaFinanceManufacturingDefenseSovereignFrontier labs
Proof
A sovereign AI factory — bare metal to production in four months.
Turn-key delivery of a fully sovereign AI factory: an empty data center taken to validated production AI training in four months. The automation we invest in once is reused on every build — a later expansion brought a new GPU generation online in about two weeks.
Invest once in automation. Replicate forever.
4mo
Empty data center to production workloads
~2wk
Next-gen GPU expansion on the same automation
1
Playbook — same SOPs on every site, any size
Technology & partners
Twenty years of vendor relationships
We build on battle-tested infrastructure and long-standing relationships across the AI hardware and software ecosystem — so what we deliver is standard, supportable and future-proof.
NVIDIA
Weka
VAST
DDN
Mellanox
Schneider
Vertiv
Careers
The team cannot be raised — it's built
We are a specialized team of senior builders and operators who have actually run frontier-scale AI clusters in production. No layers, no bureaucracy — just people who take pride in infrastructure that stays up. We hire on capability and track record, and we always want to hear from strong people, even when no role is posted.
Send us your CVWe often look for
Contact
Let's talk about your build
Planning a new AI factory, scaling an existing site, or need an operator-grade team to take it over? Tell us what you're working on and we'll get straight to the technical detail.
Email
hello@cf4.ai
Start a conversation
Send us a note with a sentence or two about your project, size and timeline, and the right engineer will reply — usually within one business day.
Email the team