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Stephen McGlennan

Partner

England & Wales

020 3319 3700

stephen.mcglennan@keystonelaw.co.uk

“I’ve enjoyed working with Steve over many years. His legal advice is clear and accurate and always firmly grounded in commercial good sense. ”

- Hwfa Gwyn, CFO, Hybrid Air Vehicles Ltd

Steve is a highly experienced corporate and commercial lawyer with in-depth understanding of business issues, having been the Chief Executive Officer of two businesses. During his tenure as the CEO of a leading aerospace business, the company valuation increased from £6m to £100m, so he fully understands all the challenges and obstacles faced by growing businesses.

Steve has a particular focus in working with start-up and other growth companies, businesses in the aerospace and defence sector and technology companies. In 2021 he acted for a tech-sector issuer on a €150 million IPO and for an aerospace company on a $200 million pre-IPO equity line.

Steve also has significant non-contentious experience in the insurance and wider financial sector.

Expertise

Stephen advises on business acquisitions, joint ventures, M&A, Takeover Code matters, and partnering, delivering strategic guidance on complex corporate transactions across sectors including technology and defence.

Experience

  • Advised on the €150m IPO of a UK Plc on the Frankfurt Stock Exchange.
  • Advised on a $200m pre-IPO equity line.
  • Advised on a private company de-merger and share buy-back.
  • Acted on the £13m takeover of a listed retail group on the London Stock Exchange main list.
  • Acted on the business acquisition of an aerospace company from administrators.
  • Advised on a £20m roll-up by way of a series of private company acquisitions.

Stephen is experienced in aerospace and defence sectors, advising on security-related projects, corporate partnerships, and compliance within highly regulated environments.

Experience

  • Advised on aircraft purchase agreements and ancillary documentation for both military and civil transactions.
  • Acted on the purchase of an aerospace business from private sellers.
  • Advised on patent litigation in the US and UK concerning aerospace technologies.
  • Secured over £20m in equity and more than £7m in grants from UK and EU agencies to support aircraft development.
  • Advised on partnering agreements with UK and European aerospace majors.

Stephen is experienced in aerospace and defence sectors, advising on security-related projects, corporate partnerships, and compliance within highly regulated environments.

Experience

  • Acted on an aircraft development and sale contract with a U.S. Department of Defense prime contractor to provide aircraft under a US$500m program.
  • Acted on a US$90m program, including SSOW negotiation, change orders, and program close-out negotiations.
  • Advised on UK export controls, MTCR, and ITAR compliance issues.
  • Acted on negotiations and contracting with a Middle Eastern Procurement Authority for design services.
  • Advised on UK Ministry of Defence negotiations and contracting, commencing with initial scoping studies.

Stephen supports start-ups and growth companies with private fundraising, crowdfunding, technology ventures, and business development.

Experience

  • Advised the CEO of two companies which grew to 20 and 150 employees, respectively.
  • Acted on the acquisition of a trading business by a start-up company.
  • Secured over £10m in equity from founders, friends and family, and private offices.
  • Raised over £2m in two crowdfunding rounds on Crowdcube.

Stephen provides legal advice on non-contentious insurance matters, focusing on regulatory compliance, policy structuring, and strategic risk management across diverse sectors.

Experience

  • Acted on the multibillion-pound listed company takeover of a composite insurance group.
  • Acted on multiple private company acquisitions and disposals of insurance intermediaries.
  • Advised on Part VII transfers of insurance business, including for entities in run-off.
  • Acted on the negotiation of a bespoke after-the-event insurance policy with a multi-million-pound premium.
  • Advised on a £20m aviation insurance claim and related settlement.
  • Acted on the restructuring of a 90:10 life fund.

Stephen advises Chinese and UK businesses on cross-border transactions, market entry, joint ventures, and regulatory compliance.

Experience

  • Acted on leading negotiations in mainland China with a major government-related entity.
  • Advised on fundraising rounds with China-based private equity and family office investors.
  • Advised on partnering discussions with a China-based multinational.
  • Advised on export control discussions.
  • Acted for the UK arm of a China-based retail group.

Stephen advises on cross-border fundraising across the Middle East, US, and Far East, and on negotiations and contracting with government authorities, including procurement and design services in international markets.

Experience

  • Advised on fundraising activities in the Middle East, the U.S. (under Regulation D), and the Far East.
  • Acted on negotiations and contracting with a Middle Eastern Procurement Authority for design services.

Recognition

Recognised by The Legal 500 for Aviation 2022

Fellow of the Royal Aeronautical Society

“Stephen McGlennan is an exceptional multi-skilled lawyer in the domain of aviation. The breadth and depth of his expertise goes beyond legal talent; he is well connected with organisations and individuals within the global aviation sector.”

The Legal 500 2022

Stephen qualified as a solicitor in 1995. Prior to joining Keystone Law, he worked at the following firms:

  • Dentons
  • Slaughter and May
  • Shepherd and Wedderburn