San Francisco · Amsterdam
I run a 300-client accounting firm for venture-backed startups, and I build the software my own team uses to do the work.
Companies I have supported along the way include Vinted, TaskRabbit, Segment, Astranis and Dexterity.
One Claude account for your whole firm, connected to every client's QuickBooks Online or Xero book. It reads the books, proposes the work, and nothing posts until a human approves it.
The rule it runs on: the model proposes, a person approves. Nothing touches the books unattended.
AI for finance without the black box. Loopfour turns a repetitive finance workflow into deterministic code that runs identically every time, with a full audit log. AI is scoped to reading and interpretation. It never decides what the system does.
One customer: a six-day billing process that now runs in eighteen minutes, with evidence an auditor accepts.
Bookkeeping, controller and CFO-level support for venture-backed technology startups and healthcare groups. Everything above was built here first, on real client files, before it was sold to anyone else.
Clarkson Hyde Global · 24 September 2026
The two kinds of AI and why the difference decides everything, the four places we never let a language model near, what is safe to put in the cloud, and how to bring a frightened team along with you.