Meet Harry – Founder of
ClearSum Accounting
Harry started ClearSum to give accounting and finance support to business owners that most accountants don’t - clear, proactive guidance from someone who gets it
After more than a decade working inside finance teams, Harry saw how much difference good financial support can make. Not just to the numbers, but to the people running the business. Too often, he saw business owners left to figure things out alone, with little clarity or planning.
At ClearSum, Harry helps freelancers, consultants and early-stage founders get set up with confidence. From building simple systems to understanding cashflow and making better decisions. He keeps things simple, explains what matters most and shows clients how to stay in control as they grow.
Based in Brighton & Hove, Harry works closely with clients who want to build strong financial foundations without feeling overwhelmed by the process.
Our Mission & Values
At ClearSum, our mission is to give clear and proactive accounting and finance support to startups & small businesses. This allows them to make confident decisions, stay in control and focus on what matters most - growing the business.
These values help shape how we work and how we help you to succeed!

Tailored
We know that no two businesses are the same, that's why we tailor our services and our approach to each clients needs

Collaborative
We all achieve more when we work together, that's why we work in partnership with our clients to ensure the best results

Proactive
Staying ahead of the game ensures there are no surprises, that's why we work proactively to ensure our clients meet all their needs

Transparent
It's important to understand your numbers, that's why we explain things clearly with minimal jargon and give honest advice for our clients
Client Testimonials
Here’s what our clients have to say:
"Harry has been a tremendous help during our time together at Custom. He has brought speed, accuracy and improved clarity to our financial reporting and processes which has helped me make better and faster decisions"
Chris D.
Custom Pharma Services
"Harry's understanding of my needs and explanation of services he could offer were fantastic"
Todd M.
TM Assesors