Our leadership

Martin Thomsen

Chief Executive Officer

Martin Thomsen became CEO of Rubix in April 2018.

Before joining us, he served as the group COO for ISS A/S, one of the world’s leading facilities services companies, with more than 480,000 employees and activities in over 70 countries.

Martin’s earlier career with ISS included the position of CEO for ISS in Denmark. In this role, he led a major transformation of the home market of the ISS Group, delivering significant improvements in employee engagement, customer satisfaction, sales growth and profitability. He also held positions as Regional CEO of Western Europe and Regional CEO of Asia & Pacific, expanding the business into five new markets and turning the region into high growth and high profitability across 13 countries. Before joining ISS in 1999, Martin worked with Coca-Cola and PA Consulting Group.

He holds a master’s degree in Economics from the Copenhagen Business School.

Andrew Silverbeck

Chief Financial Officer

Andrew Silverbeck joined Rubix in March 2019. Previously, he was Group CFO at Environmental Resources Management (ERM) for 12 years. ERM is a leading global provider of environmental, health, safety, risk, social consulting and sustainability related services.

Andrew qualified with Arthur Andersen and went on to hold senior finance roles at P&O and Lend Lease, where he held a number of CFO roles, including global CFO of the Bovis Lend Lease construction business, before moving to ERM in 2006.

Andrew has a successful track record of significant profitable growth and shareholder value creation.

He was educated at Oxford and Cambridge universities.

Gatien Gillon

Chief Operating Officer

Gatien Gillon has been our Chief Operating Officer and member of the Executive Board since February 2018. He joined Brammer in April 2017 as Group Transformation Director and led the turnaround of Brammer before heading the Integration Management Office of IPH-Brammer in September 2017.

Gatien started his career as a consultant at McKinsey in 2005, before launching his own business process outsourcing company. Following the sale of that company, he joined PE firm Bain Capital as Vice President in 2012, where he was in charge of improving operating performances of portfolio companies. In 2014, Gatien joined one of Bain Capital’s portfolio companies, Securitas-Direct, as Group Director in charge of Products, Technology Partnerships & Innovation.

Gatien holds a bachelor’s degree in Civil Engineering and a master’s degree in Electrical Engineering from the Free University of Brussels.

Helen Ebert

Group General Counsel

Helen joined Rubix in October 2021. She has previously held GC roles in many international businesses, including at Helios Towers plc, a pan African telecommunications towers business where she was the legal lead in its successful London IPO, and most recently at GardaWorld for the Middle East and Africa division.

Having completed her training with Linklaters, she worked for law firms Slaughter & May (in Singapore) and Freshfields before moving in-house to the Vita Group, an international foam and plastics PE-backed manufacturer.

Helen has an MA in Law from Cambridge University.

David Morkeberg

Group HR Director

David Morkeberg joined Rubix as Group HR Director in March 2018. He was previously Group CHRO for Inchcape Shipping Services and has previously held Divisional HRD roles in A.P. Moller – Maersk, Baker Hughes and Rexam plc.

With a background in HR leadership positions in shipping, oilfield services and manufacturing, he has worked with leadership teams to build growth through both acquisitions and organic opportunities. David has an MSc in Business Administration and Human Resource Management from Copenhagen Business School and an Executive MBA from London Business School and Columbia Business School.

Keith Reville

Group Chief Digital and Marketing Officer

Keith Reville joined Rubix in July 2018. Before joining us he served as the COO at Grainger Global Online Businesses, a division of WW Grainger, a Fortune 500 global industrial supplier.

Prior to his time at Grainger, Keith served on the Executive Board of Electrocomponents Plc (trading as RS components globally, and as Allied Electronics in the USA) as General Manager of eCommerce, and Chief Marketing Officer.

In his earlier career Keith held P&L responsibility for pure play, and multichannel businesses in Thomas Cook, Hilton International, Orange, and Everything Everywhere respectively. Keith has extensive, international, large-scale, leadership, digital transformation, business change, technology and strategy experience, as well as a strong track record of delivering profitable sales growth.

He holds an honours degree in engineering from Heriot-Watt university in Edinburgh.

Jesper Mikkelsen

Group VP - Services

Jesper Mikkelsen joined Rubix as Group VP, Services, in August 2019. He is responsible for the strategy, quality and consistency of our value-added services.

Jesper has worked extensively on the transformation of companies throughout his career. Previously, he was responsible for global excellence centres at ISS, where he also held roles leading group corporate affairs and service excellence within country operations. Before that, he was a consultant at Accenture. His career started in the Danish army where he was a captain.

Jesper has an MSc in Planning and Technology Management from the Technical University of Denmark.

Pierre Allard-Couluon

Group Chief Sales Officer

Pierre Allard-Couluon joined Rubix as Group Chief Sales Officer in March 2020. He is responsible for key accounts, sales effectiveness and sales performance across the branch network.

Pierre has extensive international commercial experience with a strong track record of driving profitable sales growth. He was previously regional director for France, Benelux, Middle East and Africa at Wabtec. Before that, he spent seven years at Rexel as business unit general manager and then as VP for business transformation. Earlier in his career he was a management consultant with Arthur Andersen before holding a number of senior international sales roles with Alcatel-Lucent.

He has an engineering degree from Ecole Polytechnique and Ecole Nationale de Telecommunication de Paris, and completed the leadership development programme at IMD Business School.

Ralf Maurer

Group Chief Product Officer

Ralf Maurer joined Rubix as Group Chief Product Officer in November 2020. He leads category management across Rubix.

Ralf has extensive board-level experience from market leading retail and wholesale organisations. He has delivered multiple category management transformation programmes and established exclusive brands at a number of B2B businesses. Previously he was managing director of the aftermarket business at BPW Group. Before that, he held senior executive roles at Europart and Carglass.

Ralf holds a degree in Business Administration from the University of Cologne.