Dee is a corporate lawyer with over 20 years’ experience, specialising in venture capital, private equity and M&A transactions. She advises financial institutions and companies on their investments, refinancings and shareholder arrangements as well as acting for corporates and individuals on mergers, acquisitions and disposals. Dee has extensive experience advising on EIS and VCT investments and on M&A transactions in the healthcare sector.
Thank you for the tremendous effort and support. I very much appreciate the work itself but also the manner and professionalism with which it was approached: yet further vindication of our decision to have Keystone supporting us on venture capital deals.
Joe Seager-Dupuy, Investment Director, True Global
Expertise
- Technology and healthcare sectors
- Private equity and venture capital
- Mergers and acquisitions
- Shareholder arrangements
- Restructuring
Experience
- Advised Calculus Capital’s EIS and VCT funds on numerous investments in the technology and leisure sector and more recently in film and television
- Acted for City and County Healthcare Group on each of its 45+ acquisitions in the homecare and supported living sector
- Acted for True Capital on various technology and brand investments
- Advised Beringea on numerous investments in the technology, leisure and retail sector since 2003 by its VCT funds as well as the sale of various portfolio companies, including Monica Vinader
- Acted for a senior lender on the corporate aspects of its acquisition finance facility to support the MBO of a number of care home businesses
- Advised Redrice Ventures on various investments
- Acted for Mobeus Equity Partners on the investment by its VCT funds in BookingTek Limited
- Acted for the buyer on a £35m acquisition of a furniture and manufacturing business
- Advised Sovereign Capital Partners on various homecare, care home and supported living investments
- Acted for Clinical Partners Limited on the acquisition of Oxford ADHD
- Acted for Select Living, a supported living provider
Please note: The experience list above may include examples of work completed prior to joining Keystone Law.
Recognition
Recognised by The Legal 500 as a Leading Individual for M&A: Smaller deals, £10M-£100M (2023-2025)
Recognised by The Legal 500 for Venture Capital (2023-2025)
“Dee Sian-Bieleman is always very diligent and thorough. Dee is also very available and has been able to turn work around on an extremely tight deadline including across weekends and holidays.” The Legal 500 2025
“Dee Sian is fabulous – incredibly diligent, proactive and commercial.” The Legal 500 2024
Recognised by The Legal 500 2023 for Media and Entertainment (including media finance)
Recognised as a Next Generation Partner by The Legal 500 2022 for M&A: Smaller Deals, Up To £50M
Recognised by The Legal 500 2022 for Venture Capital
“Dee Sian is very experienced, knowledgeable and understanding. She is meticulous with her work, always having the interests of the client at front of mind.” The Legal 500 2022
Recommended in the Legal 500 2021 for Venture Capital
Recommended in the Legal 500 2020 for Venture Capital
Recommended in the Legal 500 2018 for Venture Capital
Dee Sian of Keystone Law has a dynamic corporate practice, with strengths in investments, refinancings and restructuring matters. Her recent activity includes acting for Mobeus Equity Partners on its £2.2 million investment into BookingTek. Chambers UK 2018
Dee Sian of Keystone Law is “very good at getting back to you quickly,” notes one client. She is an experienced corporate lawyer who often handles investment and refinancing work. Chambers UK 2017
The “responsive and pragmatic” Dee Sian of Keystone Law is singled out for her experience of venture capital transactions. Clients say: “She responds very quickly in all situations, is a good communicator and is firm but pragmatic in negotiations.” Chambers UK 2016
Dee was recommended in the Legal 500 2014 for Corporate M&A
Dee Sian of Keystone Law is rated for her advice to clients on a range of private equity and venture capital investment transactions. She has notable expertise in advising clients on VCT matters. Chambers UK 2014
“knowledgeable and experienced”Legal 500 “extensive experience in the venture capital field” and “knows her stuff” Chambers and Partners
Career
Dee qualified as a solicitor in 1998. Prior to joining Keystone Law in 2013, she worked at the following firms:
- Marriot Harrison
- Addleshaw Goddard
- Charles Russell Speechlys
- Osborne Clarke