Smart financial support for
ambitious technology companies
How we champion
your business
From raising investment to scaling internationally, tech founders face unique financial and strategic challenges.
At Sumer, we offer hands-on support to help you navigate funding, structure your business for growth and maximise available incentives, so you can focus on building game-changing solutions.
4 Reasons to Choose Sumer
Raise capital with confidence:
Expert help preparing for funding rounds, from SEIS/EIS to Series A and beyond.
Make the most of incentives:
Maximise R&D tax credits, patent box relief and other innovation-friendly schemes.
Structure for scale:
Tailored advice on share structures, equity planning and international expansion.
Plan for sustainable growth:
Financial forecasting, cash flow modelling and strategic guidance at every stage to help you maximize your runway.
Meet the team

Dominic Bourquin
South West
Samuel Davies
North West
Samuel Davies
Email: samuel.davies@cowgills.co.uk

Dan Hobbs
South East
Dan Hobbs
Email: dan.hobbs@carpenterbox.com

Lucas Markou
Midlands
Lucas Markou
Email: LucasMarkou@jerroms.co.uk

Stephen Slater
North East
Stephen Slater
Email: stephen.slater@r-m-t.co.uk

Andrew Subramanium
London
Andrew Subramanium
I am head of HW Fisher’s industry-leading authors and journalists team.
Many of my clients are best-selling authors or household names in the media world, while others are at an early phase of their careers. No matter what stage a client is at, my goal is always to make a significant contribution to their financial security and prosperity by minimising their tax liability.
As well as heading up the authors and journalists team, I look after musicians, record companies, music publishers, concert organisers, composers and agents, vloggers, actors, publishers, broadcasters, film and television production companies, advertising agencies and PR consultancies.
I advise clients on all aspects of personal tax planning in terms of how it affects their personal financial circumstances, including inheritance tax planning, mortgages, pensions and investments. The work covers the entire financial services tax account world they live in.
I joined HW Fisher in 1991 as a trainee and worked for 10 years in the audit team, managing the team in the latter years. I went on to head up the authors and journalists division, when we acquired another practice in 2002, and have been managing that team ever since.
A great highlight of my career was being asked by Levi Roots to write a chapter for his book outlining the work I did for him to manage his finances when he was first setting up his business. Levi remains a client; it’s always very satisfying to be involved with someone’s business from the very start and to see them go on to become successful.
Memberships
Crime Writers Association, Board member
Actors Centre, Board member
Musical Theatre Network, Board member
Henley Literary Festival, Patron
Email: asubramanium@hwfisher.co.uk

James Tucker
East AngliaThere are plenty of ways Sumer can make a
difference to your business.
But if we had to pick one, it’s our people. With partner-led services from local experts in every region, we offer national scale and personal
support from people who understand your sector and your community. From succession planning and exits to international growth, our
specialists are here to help you make the big decisions with confidence.