Clare Lacey

Interim Chair

Appointed to Board: 2022

Clare is a Chartered Accountant with nearly 20 years experience, focused on the infrastructure and renewable energy sectors.

She holds a portfolio of Non-Executive Director roles in these sectors. As one of the founding partners of QMPF, an Edinburgh based infrastructure and energy advisory business, she was heavily involved in the management buy-out from Quayle Munro in 2012 and growing the business over its first ten years.

While still a part of Quayle Munro, Clare undertook fund management of an AIM-listed PFI fund, PFI Infrastructure Company Plc, among other PFI and corporate finance remits.

Core strengths and experience

  • Significant experience in infrastructure and renewable energy sectors
  • Qualified Chartered Accountant

External appointments

  • Non-Executive Director of NYOP Education
  • Non-Executive Director of Scot Roads Partnership Project Ltd
  • Non-Executive Director of Woodland View Project Co Ltd

Charles Sweeney

Chief Executive Officer

Appointed to Board: 2023

Charles is a Chartered Director and a Chartered Engineer with more than 40 years’ experience in the civil infrastructure and energy sectors, both in the UK and overseas. His career has included several C-suite, Managing Director and Director positions, including nine years on the Executive Board of Costain Group plc and Managing Director of its Energy and Process Division.

He joined Nexus in September 2016 as Chief Operating Officer and subsequently took on the additional interim role of Tamdown Managing Director through to September 2018. He was appointed as Chief Executive Officer in February 2023.

Charles originally graduated with a BSc (Hons) in Chemical Engineering from the University of Leeds and later was awarded an MBA from Webster University, Leiden, The Netherlands. In 2023, he was awarded a NED diploma from the Financial Times Board Director Programme. He is a Fellow of the Institute of Directors and also a Fellow of the Institution of Chemical Engineers.

Core strengths and experience

  • Extensive Board-level experience in listed companies involved in the energy, civil infrastructure and residential construction sectors
  • Strategy development and implementation
  • Business transformation, performance improvement, commercial and operational risk management

External appointments

None

Dawn Hillman

Chief Financial Officer

Appointed to Board: 2023

Dawn is a Chartered Management Accountant and Chartered Secretary with ​experience within the infrastructure, construction, and engineering sectors.​

She has worked within or closely alongside the Tamdown business for over 40 years and is an experienced Executive Board Director and Company Secretary.​

Dawn was instrumental in taking the business through IPO to AIM listing in 2017.

She has previously held Finance Director roles for Tamdown and other construction businesses.

Core strengths and experience

  • Extensive experience in the construction industry
  • Experience in privately owned, equity backed and plc businesses
  • Accounting and finance, corporate governance, process improvement, risk, IT, strategic development, commercial

External appointments

  • Trustee of Nexus Community Trust, independent charity

Appointed to Board: 2022

Clare is a Chartered Accountant with nearly 20 years experience, focused on the infrastructure and renewable energy sectors.

She holds a portfolio of Non-Executive Director roles in these sectors. As one of the founding partners of QMPF, an Edinburgh based infrastructure and energy advisory business, she was heavily involved in the management buy-out from Quayle Munro in 2012 and growing the business over its first ten years.

While still a part of Quayle Munro, Clare undertook fund management of an AIM-listed PFI fund, PFI Infrastructure Company Plc, among other PFI and corporate finance remits.

Core strengths and experience

  • Significant experience in infrastructure and renewable energy sectors
  • Qualified Chartered Accountant

External appointments

  • Non-Executive Director of NYOP Education
  • Non-Executive Director of Scot Roads Partnership Project Ltd
  • Non-Executive Director of Woodland View Project Co Ltd

Appointed to Board: 2023

Charles is a Chartered Director and a Chartered Engineer with more than 40 years’ experience in the civil infrastructure and energy sectors, both in the UK and overseas. His career has included several C-suite, Managing Director and Director positions, including nine years on the Executive Board of Costain Group plc and Managing Director of its Energy and Process Division.

He joined Nexus in September 2016 as Chief Operating Officer and subsequently took on the additional interim role of Tamdown Managing Director through to September 2018. He was appointed as Chief Executive Officer in February 2023.

Charles originally graduated with a BSc (Hons) in Chemical Engineering from the University of Leeds and later was awarded an MBA from Webster University, Leiden, The Netherlands. In 2023, he was awarded a NED diploma from the Financial Times Board Director Programme. He is a Fellow of the Institute of Directors and also a Fellow of the Institution of Chemical Engineers.

Core strengths and experience

  • Extensive Board-level experience in listed companies involved in the energy, civil infrastructure and residential construction sectors
  • Strategy development and implementation
  • Business transformation, performance improvement, commercial and operational risk management

External appointments

None

Appointed to Board: 2023

Dawn is a Chartered Management Accountant and Chartered Secretary with ​experience within the infrastructure, construction, and engineering sectors.​

She has worked within or closely alongside the Tamdown business for over 40 years and is an experienced Executive Board Director and Company Secretary.​

Dawn was instrumental in taking the business through IPO to AIM listing in 2017.

She has previously held Finance Director roles for Tamdown and other construction businesses.

Core strengths and experience

  • Extensive experience in the construction industry
  • Experience in privately owned, equity backed and plc businesses
  • Accounting and finance, corporate governance, process improvement, risk, IT, strategic development, commercial

External appointments

  • Trustee of Nexus Community Trust, independent charity

Christian Wurst

Independent Non-Executive Director

Appointed to Board: 2026

Christian has over 25 years’ experience in supply chain and industrial services, including management of operations, finance and commercial teams.

He is currently Operational Performance Improvement Programs Director at Eurofins, and has previously held leadership roles at Wincanton plc in the UK and Panalpina, CEVA Logistics and RWTÜV in Germany.

He was also previously a Board Member at Nexxiot AG and a member of the Advisory Board at InstaFreight, and is currently a member of the Board of Trustees of the International School of Management Dortmund.

Core strengths and experience

  • Significant experience in management of operations, finance and commercial

External appointments

  • Operational Performance Improvement Programs Director at Eurofins

Appointed to Board: 2026

Christian has over 25 years’ experience in supply chain and industrial services, including management of operations, finance and commercial teams.

He is currently Operational Performance Improvement Programs Director at Eurofins, and has previously held leadership roles at Wincanton plc in the UK and Panalpina, CEVA Logistics and RWTÜV in Germany.

He was also previously a Board Member at Nexxiot AG and a member of the Advisory Board at InstaFreight, and is currently a member of the Board of Trustees of the International School of Management Dortmund.

Core strengths and experience

  • Significant experience in management of operations, finance and commercial

External appointments

  • Operational Performance Improvement Programs Director at Eurofins