Elevating bookkeeping from compliance torealcompetitive advantage
We're building the infrastructure that lets accounting practices grow with confidence.
Our Mission
Operational confidence for every practice.
We believe growth shouldn't be constrained by process. Jenesys exists to remove the friction between client demand and your capacity to deliver.
Our Vision
Bookkeeping as a decision engine.
Not just compliance. Not just historical record-keeping. We see bookkeeping as the critical dataset that powers cash flow planning, strategic decisions, and business growth.
The Market Is Ready
We started differently.
UK accounting practices are under pressure — capacity constraints, margin erosion, and growing client expectations. AI promises efficiency, but most solutions automate broken processes.
We spent years in R&D understanding why automation has stalled. What we found: the bottleneck isn't technology. It's context, communication, and confidence. That's what we're solving.
Read our origin storyLeadership
The team building Jenesys
Nicolai Thomson
CEO
Nicolai founded Jenesys after spending over a decade working with accounting practices on technology transformation. His experience spans practice management, fintech, and operational consulting. He leads the company vision and strategic direction.
LinkedInDarren Jefferies
Service Delivery Director
Darren brings 15+ years of experience in service delivery and operations management. He oversees client delivery, ensuring every practice receives consistent, high-quality bookkeeping output. His focus is building scalable processes that maintain quality at volume.
LinkedInHow we think differently
Questions Before Code
Years of R&D into why automation stalls.
Understanding the problem before building the solution. We spent years researching what actually blocks efficiency in accounting practices.
Software-First. Human Where It Matters.
Not pure automation. Not traditional outsourcing.
The right delivery method for each type of work. Jack handles what software does best; humans step in for judgment calls.
Explainable AI You Can Trust
See how every decision is made.
Know when human intervention is needed. No mysteries, no black boxes. Full visibility into every classification and coding decision.
Company Details
Company: Jenesys
Location: United Kingdom
Get In Touch
We'd love to hear from you.
Have questions about Jenesys? Drop us a line or book a call.