Cornerstone’s unique model of delivering public services is built on the experience of its founding team. Instead of a traditional transactional relationship between public and private sectors, our team works with the grain of public authority priorities and needs, as a partner not a supplier. Collectively, our team has unparalleled experience in running world leading investment programmes.

Our Team

tim byles - Cornerstone

Executive Chairman

harry scarff

Property Director

Laura McLaughlin

PA to the Executive Chairman

Mike Bennett - Cornerstone

Associate Director

Vikki d'Arcy

Project Director


tim byles - Cornerstone

Executive Chairman

John McDonough, CBE

Non-Executive Director

sir david bell

Non-Executive Director

rod aldridge

Non-Executive Director


Mandy Bearne

Associate, Cornerstone

Tim Waters

Director, Renew Planning

William Roe

Associate, Cornerstone

Amy Leonard MBE

Chief Executive, The Talent Foundry

John Hall

Director, Appraisals Abound

David Groves

Director, Openbox Consulting

clive grace

Associate, Cornerstone

Gillian Cawley

Associate, Cornerstone

Our Network

We work across both the public and private sector, matching the team with the job using partners or subcontractors depending on the project need. Our aim is to complement our core staff with the right support team through our networks with other partner organisations.

We will draw on expertise from our networks for the following types of services as and when they are required:

  • Architectural services
  • Financial analysis
  • Legal advice
  • Planning services
  • Specialist technical advice

We have experience of senior leadership in both public (including Central and Local Government) and private sectors, and a corresponding senior network of relationships across both sectors. This expertise puts Cornerstone in the unique position of being able to foster long term successful relationships and leverage these to secure the best possible outcomes for all parties.