Fractional CTO & CFO for UK Startups
Big 4 rigour meets founder empathy. A part-time CTO, a part-time CFO, or both: architecture, engineering leadership, financial models, and fundraising for founders from pre-seed to Series A.
Fractional CTO
5 → 1,000+
Concurrent users at Rungway, where Ankit led engineering
Architecture, engineering leadership, delivery
Fractional CFO
£35m → £165m
Revenue at Dishoom, where Michelle led strategic finance
Financial models, controls, fundraising
Two Executive Seats
Take either seat on its own, or both. Founders who take both get a technical plan and a financial plan that agree, because the same two people build them together.
Strategic finance, FP&A, and the financial discipline that makes your startup investable.
Architecture decisions, engineering team building, and infrastructure that scales from day one.
Also need delivery capacity? Explore all services including 0-to-1 product builds and agentic AI engineering.
Building something exceptional? For the right opportunity, we also consider co-founder partnerships.
Codenest clients
Agritech
Founder track record includes
HR Tech
Ankit Rana, Fractional CTO, has delivered for the Ministry of Justice, Tesco Bank, HSBC, AstraZeneca and Opayo by Elavon. Michelle Rana FCCA, Fractional CFO, led strategic finance at Dishoom through £35m to £165m revenue growth and a four-point EBITDA margin improvement.
Numbers we can point to, each tied to a named engagement or offer term
Proven Track Record
Client engagements, and the founder track record behind them
Codenest client engagement
In progressAgentic AI for a UK agritech platform: a queryable layer over the client's own records, and a delivery platform that takes a ticket from Linear, GitHub or Slack and drives it to a merged pull request unattended.
Read the case studyAgents in production
AI factory
Company brain
Codenest client engagement
Releases went from every two weeks to multiple times per day
Read the case studyCodenest client engagement
Production-ready MVP delivered on Kubernetes infrastructure
Read the case studyFounder track record
Scaled from 5 to 1,000+ concurrent users
Read the case studyHow We Work
Technology is your moat.
If your edge is a novel algorithm or custom hardware, that work needs someone in the building full time with their name on it. Two days a week will hold you back.
You need someone 40+ hours a week.
At that point you are describing a full-time hire, and paying fractional rates for it is the expensive way to get one. We will tell you so and, where we can, point you at people worth talking to.
Real feedback from startup leaders we've worked with
"They transformed our platform from handling 5 users to 1000+ concurrent users. The migration was seamless with zero downtime. Exactly the technical leadership we needed."
Founder & CEO, London HR-tech platform
Name withheld under NDA
"Their financial modeling and due diligence preparation were instrumental in closing our Series A. Investors commented on how well-organised our data room was."
Founder & CEO, London fintech
Name withheld under NDA
"As a non-technical founder, I needed someone who could translate business requirements into technical reality. They delivered our MVP in 10 weeks with a system that just works."
Founder & CEO, B2B SaaS startup
Name withheld under NDA
Got questions?
Everything you need to know about working with us
Most engagements start within 1-2 weeks after our initial discovery call. For urgent projects, we can mobilise faster.
Fractional CTO/CFO engagements typically run 3-6 months at 2-3 days per week. MVP builds are fixed-scope at 8-12 weeks. We tailor every engagement to your stage and needs. No cookie-cutter packages.
Yes. Each seat is a separate engagement — take the Fractional CTO, the Fractional CFO, or both. Founders who take both get one roadmap and one financial model built in the same conversations, rather than two advisers reconciling afterwards, but there is no requirement to buy the pair.
We work on retainer for fractional leadership (monthly commitment) and fixed-fee for defined projects like MVP builds or financial modelling. Every engagement is scoped to your stage and the intensity you need — typically 60-80% less than an equivalent full-time hire. Request a strategy call and we'll quote against your actual requirements.
Still have questions?
Request a Strategy CallStart the conversation
Thirty minutes, no sales pitch. We'll tell you if you don't need us.