Value-first roadmaps
We rank every use case by ROI, feasibility and risk, so you fund the few that matter.
Independent AI consultancy
Turn AI ambition into measurable results.
We help leadership teams find the AI opportunities worth funding, build them properly, and run them safely, from first workshop to production.
120+ companies advised across 14 industries
Client impact · Q3
Live
$4.2M▲ 38%
Annualised savings from deployed AI workflows
Support tickets auto-resolved61%
Time to quote−4.5 days
Model incidents0
Trusted by teams at
HalcyonBrightlineOrreryKestrel BankVantageMeridia
About H4
We're operators, engineers and strategists who've shipped AI inside real businesses. No 200-slide decks, no vendor kickbacks. Just clear thinking, working systems and teams that can run them after we leave.
120+ businesses trust us with their AI roadmap
Hands-on engineering
Our people write the code, wire up the data and put models into production.
Safe by design
Governance, evaluation and security are built in from day one, not bolted on.
What we do
Expert guidance for every stage of AI adoption
Whether you're writing your first AI policy or scaling agents across the business, we meet you where you are.
01
AI Strategy & Roadmapping
Find the highest-value use cases and a 12-month plan your board will back.
02Agents & Automation
Design and ship AI agents that take real work off your team's plate.
03Data Foundations
Clean pipelines, retrieval and access controls that make AI trustworthy.
04Custom LLM Applications
Copilots, search and assistants built on your knowledge and workflows.
05AI Governance & Risk
Policies, evaluations and controls aligned with the EU AI Act and ISO 42001.
Case studies
Real outcomes, not pilots that stall
Every engagement starts with a number we commit to moving. Here are a few we moved.
−63%average handling time
A claims triage agent that clears the backlog before lunch
Kestrel Insurance moved from manual triage to an AI-assisted pipeline in 11 weeks.
+31%sales-qualified pipeline
A sales copilot that writes the first draft of every proposal
Brightline's reps now spend their time selling, not formatting decks.
How we work
A proven path from idea to production
Four phases, fixed scope at every step, and a clear go / no-go before you spend another dollar.
Discover2–3 wks
Map the opportunity
Interviews, process mining and data audits to surface where AI can create value.
Prove4–6 wks
Build a working pilot
A real prototype on your data, with evaluation metrics agreed up front.
Scale8–12 wks
Ship to production
Hardened infrastructure, integrations, monitoring and human-in-the-loop review.
EnableOngoing
Hand over the keys
Training, playbooks and governance so your team owns it with confidence.
The difference
Why teams switch to H4
Typical AI consultancies
- ✕Strategy decks that never reach production
- ✕Partnered with one vendor, recommend that vendor
- ✕Junior teams learning on your budget
- ✕Success measured in hours billed
- ✕Leave you dependent on them to run it
With H4
- ✓Working software in weeks, not quarters
- ✓Vendor-neutral: we pick the right model for the job
- ✓Senior practitioners on every engagement
- ✓Success measured against a business KPI
- ✓Your team trained to own and extend it
120+Businesses advised
85+AI systems in production
4.6xMedian first-year ROI
97%Client retention
H4 gave us a roadmap we could actually execute, then rolled up their sleeves and built the first two systems with us. Six months in, AI is part of how we work.
PS
Priya ShahCOO, Halcyon Health
Insights
Latest thinking on applied AI
Field notes from our engagements: what works, what doesn't, and what's next.
FAQ
Questions we hear often
Can't find what you're looking for? We're happy to talk it through.
Get in touchWe're just getting started with AI. Is it too early to bring you in?
Not at all. Many clients come to us before they've written a line of code. Our Discovery sprint is designed for exactly this: a fixed-fee, three-week engagement that leaves you with a prioritised roadmap and a clear first project.
Do you work with a specific AI vendor or model provider?
No. We're vendor-neutral and take no referral fees. We regularly use frontier models from multiple providers as well as open-weight models, and choose based on accuracy, cost, latency and your data-residency needs.
How do you keep our data secure?
We work inside your cloud environment wherever possible, sign NDAs and DPAs as standard, and never use client data to train third-party models. Our team follows SOC 2 aligned practices.
How are engagements priced?
Discovery and pilots are fixed-fee. Build phases are scoped as fixed-price milestones or a dedicated pod on a monthly retainer, whichever suits your procurement. See our engagement models.
What happens after the project ends?
You own everything: code, prompts, evaluations and documentation. We train your team to run it, and offer optional support plans for monitoring, model upgrades and new use cases.
Start with a 30-minute call
Less hype. More shipped AI.
Tell us where AI could move the needle in your business. We'll tell you honestly whether it can, and what it would take.
NDA on request. Your data never trains third-party models.