About Me

I'm a partner in our International Corporate Group in London. I specialise in venture capital and private M&A, focusing on the financing, acquisition and sale of high-growth organisations.

Acting for top-tier investors and high growth companies, my transactional experience includes advising in respect of companies at all stages of their life-cycle: from their incorporation and commercial set-up, to scale-up and all the way through to exit and beyond. As well as venture equity, I am highly experienced in growth debt/venture debt financings, and regularly act for some of the leading lenders in the market.

I have a particular interest in corporate venture capital, and have acted in relation to a number of financing transactions involving strategic partnerships (both directly and through innovation funds). My experience acting for companies at all stages of their life-cycle means that I have a thorough understanding of the issues and benefits which can arise when a large organisation invests in earlier stage companies.

Many of the organisations I work with are involved in disruptive technologies, operating at the cutting-edge of their industry, often on a multi-jurisdictional basis. As a result, I often work with colleagues from our international offices, as well as our sector specialists. I have significant experience assisting high-technology companies across the technology, communications, energy and utilities and life sciences sectors.

I'm also highly experienced in M&A transactions (often on a cross-border basis), and general corporate advisory work.
  • Acted for Accsys Technologies Group in relation to its €68m financing including equity investment from BP Technology Ventures, Medite, the UK Business Growth Fund and Volantis Capital.
  • Acted for Kreos Capital, a leading growth debt lender, in relation to numerous growth debt transitions, often on a multi-jurisdictional basis.
  • Acted for Columbia Lake Partners, a leading growth debt lender, in relation to numerous growth debt transitions, often on a multi-jurisdictional basis.
  • Acted for a venture capital fund in relation to various investments in early-stage high growth technology companies.
  • Acted for a capital management company specialising in media, infrastructure and real estate, in relation to numerous investments in the infrastructure and energy sectors.
  • Acted for AdTech startup, A Million Ads in connection with its seed round financing led by GMG Ventures (the VC investment arm of the Guardian Media Group).
  • Acted for the sellers of Boxwood Limited in connection with its sale to KPMG.


  • Durham University


  • Solicitors Regulation Authority in 2009
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"The 'brilliant' Mark Rundall is 'very knowledgeable and commercially astute', traits with which he imparts to good effect for investors and high growth companies in the tech and energy sectors, in particular."

Legal 500 2024

Ranked as a "next generation partner" for Venture Capital

Legal 500 2021

'Mark Rundall was absolutely fantastic'

Legal 500 2021

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