Verifiable decisions, built on complete data
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Being the best in the room means delivering more than just the right answer, it means delivering the proof. Imagine a client asks how you reached your recommendation, and you could show them every step you took, every path you ruled out and the evidence behind the call. That is what shows them they are working with the best.
To do that well, you need complete data and that's the hard part, because it means capturing every granular detail. Those small details often hold the crucial information: they explain why past decisions were made, and they inform what should be decided in future. We build a set of systems that integrate seamlessly within your operating environment and capture user behaviour automatically without them manually entering it in.
Because this information can be sensitive or confidential, we use AI that stays fully governed by your firm, not even we can see it. Data processed through it never leaves for a third-party service, and every action can be audited and observed by your team. We can deploy and maintain this private AI within your own IT tenant.
The market will try sell you surface level AI agents but we build the layer underneath it with your knowledge connected into a structure called a context graph, which an agent can reason over, and is the part that actually decides whether the answer at the end holds up.
Our consulting background earns its keep here. We bring it to every engagement to cut signal from noise — getting precise about the outcome you're actually after, what it will genuinely take to get there, and advising you at each step along the way.
"What sets Arpx apart is the combination of deep knowledge and genuine generosity. They don't just understand this space — they care about the people they share it with. I'm a better operator and a clearer thinker as a result of their input, and I'm very grateful for it."
- Nick Starbuck, Founder of Smart Match Network
and former Senior Settlements Clerk at Rothschild & Co
It's built for knowledge-heavy firms, where a wrong answer is costly and "ask the one person who knows" is a risk carried on the books. What comes back is knowledge that stops walking out the door, decisions you can stand behind, and AI you're actually permitted to trust. In practice that means three things a partner can hold us to:
Conflict detection
Potential conflicts of interest surface automatically, before a matter is taken on rather than after.
Auditability
Every conclusion keeps its full working, so any recommendation can be traced step by step for a regulator, board or client.
Governance
It runs under your own governance rules and inside your own infrastructure, so nothing leaves your control.
The software is robust, but what we charge against is the value on top of it. Up front we agree what "value generated" means for your firm, say fee-earner hours recovered or work won. Our fee is 10% to 20% of that, capped so your maximum is known before we begin and measured against your own records.
Frequently asked questions
Who do you work with?
Law firms, investment firms, wealth managers and strategy consultants — knowledge-heavy businesses where a wrong answer is expensive and too much depends on the one person who happens to know.
How do you price your work?
No fixed licence fee. We agree what "value generated" means for your firm up front, then take 10% to 20% of it, capped and measured against your own records. And there's a 90-day guarantee: if we don't deliver results, you don't pay.
If the AI gets something wrong, who's accountable? Is privilege protected?
You stay accountable for the final decision exactly as you are today; the system's job is to show its working so you can check it before you rely on it, and because it runs inside your own infrastructure, privileged material never leaves your walls.
How long before we see results?
Engagements are built to show real, measurable results inside 90 days, not a multi-year transformation programme. If they don't land in that window, that's on us.
Where does our data live? Is it private?
It can run entirely inside your own infrastructure. Your data stays yours — nothing has to leave your walls for the system to work.
Are you here to replace our people?
No. The point is the same team doing better work — handing the repetitive digging to agents so your experts get their attention back for the decisions that actually need them.
How do we get started?
A short conversation to understand your data and where the friction is. From there we map the opportunities worth pursuing before anyone commits to a build.