Venture Catalysts

Realising Potential


Oxalyst was formed with the sole purpose of supporting early stage and growth businesses to ensure they achieve their full potential.

Oxalyst partners have a rich background of working with businesses ranging from pre-revenue through to large corporates for well over 20 years. 

Our style is professional yet relaxed, hard-working yet light-hearted. We take a truly partnerial approach to not only make a success of the business, but also make a success of the people involved. 

We are scrupulous in the selection of businesses for our portfolio – taking time to really understand the business and its needs, and also ensuring that we can really add value. As a rule, we only assist with the funding of a business where we have ongoing active involvement – typically right through to the sale of the business.


What we do

We help in three key areas: Funding, Management and Business Support and Market Access.  We can also assist with one-off advisory engagements, building plans and strategies for success.



We work with partners to arrange funding for the right businesses – from seed funding through to Series A. 

We have a particular focus on investments for growth prior to Series A.  Businesses at this stage often require investment in the range of £500k-£2m to start to break out of start-up and into scale-up, and yet this level of funding is so difficult to achieve in the market.  We help to address this challenge.

Management and Business Support

Running a growing business is exciting and challenging in equal measure.  Setting goals that are ambitious but achievable (just).  Making the hard decisions about where to focus and sticking to them.  Delivering concrete progress with limited resources and building up to an unstoppable momentum.

Our pragmatic approach provides the right support for a business depending on its specific needs and where it is in its lifecycle.  Our work encompasses:

  • Management support and coaching

  • Strategy and direction

  • Proposition and go to market approach

  • Operating model design and refinement

  • Sales and Channels

  • Building the right team

  • Financial Planning and support

  • Technology

  • Risk management

  • Interim roles



Market Access

The greatest ideas can only succeed when they connect with their markets.  Through our extensive networks and access to senior people and businesses, we:

  • Connect businesses for mutual benefit and exploitation of synergies

  • Connect people

  • Open up partnership and channel opportunities

  • Provide access to larger organisations

  • Extend access to talent

Our Commercial Model


We’re in this for the long run.  Success is a growing, thriving business.  Our typical commercial model reflects this by combining:

  • A percentage fee for successful fund-raising

  • A small monthly management charge

  • A share in the growth in value of the business that we help to achieve

Our Portfolio

We work with businesses that capture the imagination, and with teams who have a powerful vision and the drive to get s**t done.


Our Team

Two founding partners and a collection of specialists in those areas where growing businesses most often need help.


David Kirby

David spent 16 years with Capgemini where he sat on the UK board and the European Management team. Heading up the Technology Division, he also drove the business in Public Sector, Insurance and Retail and Distribution. He spent a number of years with Shell as part of the global IT executive team with responsibility for global Programme Management and Delivery, and was MD of a VC-backed ERP/consultancy business.

He has been working with growth businesses since 2009, taking a number of companies through the journey from concept to revenue, expansion and then exit.

Mark Fishleigh

An engineer by training, Mark has worked with technology-enabled businesses of all shapes and sizes for over 20 years. He has worked in a range of sectors including insurance, retail banking, telecoms, retail, consumer goods, natural resources and utilities. Based in the UK, he has also worked in the US, Australia and across Europe. He has established and grown new businesses, turned around stalled business, and is equally at home in both new start-ups and large blue chip companies.

He is collaborative, pragmatic and creatively analytical. He aims to cut through the noise and bring clarity to propositions, messaging and the underlying business models.


Tim Dowling

Tim leads Oxalyst’s investor relations. Most recently, Tim has been running an online retail trading platform across the UK/Europe and Investing in start-ups. Prior to that Tim worked for Chatham Financial building relationships with C-level executives across the global Private Equity and Corporate market whilst providing them with key risk management advice.

Prior to that Tim spent 20 years working for various Fixed Income Brokers across Asia. 3 years in Sydney, 4 years in Hong Kong and 15 years in Singapore. His network reaches across the globe.

Together with the collective talents of specialists in:

  • Corporate finance

  • Tax

  • Financial management and accounting

  • Legal advice and services

  • Technology strategy and development

  • Recruitment and team effectiveness

  • Marketing

  • Sales and account management


LEt’s Talk

Use the form below to contact us about your business. To help us to give you a constructive response, we recommend that you first describe your current situation and any key challenges before telling us what you want to achieve. You can also email or call us to make an appointment.

For job opportunities, please email us with a copy of your CV. We’re always looking for new and exceptional talent to broaden our ability to help our portfolio companies to fly.


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