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ClearSum Accounting

About Us

At ClearSum, we help freelancers, consultants and small business owners make sense of their finances and build the systems they need to grow with proactive Accounting & Finance support.


Whether you’re just starting out or getting more serious about the numbers, our support is simple, proactive and tailored to you.

Our Mission & Values

At ClearSum, our mission is simple - 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 support your success.

Flexibility

We know that no two businesses are the same, so we're flexible in our approach to each client's needs

Collaboration

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

Proactivity

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

Transparency

It's important to understand your numbers, that's why we explain things clearly with minimal jargon and give honest advice for our clients

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.

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Client Testimonials

Don’t just take our word for how great our accounting and finance support for small businesses is!
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

"Harry was great throughout. I’ve never had an accountant before, so it was all new to me. Harry made it very easy to understand and helped me whenever I needed it. I would definitely recommend!"

Ollie N.
Sole Trader

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