Since joining Osborne Clarke in 2013, Mark's focus has been on building out the Osborne Clarke Private Equity offering in London from a single partner to a six partner specialist team.

In addition to building a mid-market financial sponsor-led Private Equity practice, Mark has also been instrumental in creating Osborne Clarke's leading specialist Management Advisory practice and in doing so has secured a substantial number of significant instructions acting for the management teams on many of the most high profile transactions in the past few years.

With over 30 years' relevant specialist experience, and as a leading private equity practitioner, Mark is often called upon for his expertise in relation to providing advice and assistance on projects even when he is not the lead partner.

In the past Mark has taken time out from his legal career to undertake a commercial role in a venture capital backed supply chain management software company as a director and investor. Mark is also very interested in the area of corporate governance and business ethics and is a former member of the Institute of Business Ethics.

Mark has been named in the legal directories as a “leading individual” for both private equity and M&A where he is described as “realistic and practical” and is praised for “not wasting time arguing immaterial matters for the sake of legal principle”.

"It's been a pleasure working with Osborne Clarke throughout this transaction. Mark [Spinner] has worked hand in hand with us every step of the way providing practical and insightful advice. His knowledge and experience of these types of deals was invaluable and added real value."

Paul Thandi – Group CEO of the NEC Group following the £815 million secondary buy out funded by Blackstone Group LP

Helping you succeed in tomorrow's world

Leading the London Private Equity and Corporate practices means that I interact with some exceptional people and clients and spend my time helping them to fulfil their personal and commercial objectives in an ever changing World.

By its very nature, Private Equity tends to invest in cutting edge, fast growth, "best in breed", entrepreneurial businesses which I help to secure the funding and support that they require to succeed. I am proud of my track record in helping clients achieve their goals.

NEC Group

Advising the management team of NEC Group on the £815 million secondary buyout funded by Blackstone Group LP.

Caledonia Private Capital

Advising Caledonia Private Capital and other selling shareholders on the £153 million sale of Caledonia Choice Limited to iChoice Health Limited funded by iCON Infrastructure Partners, IV L.P.

HH Global Group Limited

Advising HH Global Group Limited and its shareholders on the £100 million investment by Blackstone Tactical Opportunities Fund valuing HHG at £252 million.

BMI Hospitals

Advising Management on the $2 billion (£1.5 billion) sale of the BMI Hospitals real estate portfolio by Centerbridge Partners L.P. to Medical Properties Trust, Inc.


BMI Healthcare

Advising Management of BMI Healthcare on the £350 million disposal of BMI Healthcare to Circle Health.


Linneaus Group

Advising Management on the sale of Linneaus Group Limited to Mars Petcare’s Veterinary Health Group, a part of Mars, Incorporated.

Beavertown Brewery

Advising Logan and Bridget Plant in relation to the investment in Beavertown Brewery Limited by Heineken UK Limited.

RJD Partners Limited

Advising RJD Partners on the £14 million sale of its portfolio company Stone Computers Limited.

Alcuin Capital Partners

Advising Alcuin Capital Partners on its investment into Nemesis Now Limited.

Wavenet Group

Advising the management team of multi-award-winning provider of telecoms and technology solutions provider Wavenet Group on the acquisition by Macquarie (from Beech Tree Partners).

HH Global Group Limited

Advising HH Global Group Limited and its management shareholders on the $400 million acquisition of Inner Workings, Inc.


The Staffing Group

Advising the selling shareholders of The Staffing Group on its sale to JobsandTalent.

ByBox Holdings Limited

Advising the management team of ByBox Holdings Limited on the £221 million MBO funded by Francisco Partners.

Palmer Capital Partners Limited

Advising the selling shareholders of Palmer Capital Partners Limited on the investment by Canadian listed company Fiera Capital.

Sterling Pharma Solutions

Advising the senior management team of Sterling Pharma Solutions on the £180 million buyout funded by specialist healthcare investor GHO Capital.

Morgan Motor Company Limited

Advising the management team of the Morgan Motor Company Limited on its £60 million buyout funded by Investindustrial.

Foster + Partners

Advised the senior partner group on the 3i funded management buyout of leading architectural practice, Foster + Partners

Marlin Private Equity

Advising Marlin Private Equity on the $33 million sale of its portfolio company Iptor Supply Chain Systems to Bregal.

Auction Technology Group

Advising the senior managers on the secondary management buyout of Auction Technology Group funded by TA Associates.

Glide Group

Advising the senior management team on the tertiary buyout of Glide Group Limited funded by Alinda Capital Partners.