We bring management judgement to technology-intensive industries.

Sébastien Chaussoy

Partner, Toulouse Office

  • 19 years in operations and consulting
  • Engineering, École des Mines d’Alès (1994)
  • MBA, ESG Paris (1995)
  • Before CYLAD: PwC, IBM Business Consulting


Sébastien Chaussoy founded CYLAD Consulting S.A.S with Paul Archer.


Since 2001 he has been active in the strategy and management consulting business with projects in Europe and the US. His expertise covers program management, business transformation and operational performance. Furthermore he has in-depth knowledge of the Aerospace & Defence and Transportation industries.


Prior to CYLAD Consulting, Sébastien Chaussoy spent 5 years as Project Engineer at Fedex EMEA. Thereafter he worked as a consultant at PwC and IBM Business Consulting Services.

Sébastien Chaussoy graduated from École des Mines d’Alès (1994), and holds an MBA from ESG (1995).

Laurence Massat

Partner, Toulouse Office

  • 18 years’ experience in Operations and Consulting
  • HEC Business school (1999)
  • Experience: JP Morgan, CoSpirit, InfoPro, Toulouse Métropole


Laurence Massat joined CYLAD Consulting in 2008 as Manager after nine years’ operational experience as Project Manager, Development Manager and Chief of Staff.


She is responsible for Change Management and Organizational Transformation activities.


Her areas of expertise cover Company Transformations, Project/Program and Portfolio Management, Change Management and R&D Performance improvements. She has skills in the Aeronautics, Pharmaceuticals and Health sectors, the Public sector and Industry in general.

Laurence Massat started her career in 1997 as Financial Analyst in Mergers & Acquisitions with the global financial services firm, JP Morgan, and carried out operational functions as Project Manager and Development Manager for the CEO of CoSpirit Group (Marketing and Media consultancy). Then, in 2001, she joined InfoPro Group, initially as Marketing & Development Manager at ETAI in Paris, then as Deputy Director of subsidiary ETAI Spain in Barcelona. From 2005 to 2008, she held the position of Chief of Staff for Philippe Douste-Blazy, President of Toulouse Métropole, France. She joined CYLAD Consulting in 2008.

She graduated from HEC Business school with a major in Entrepreneurship (1999).

Dr. Thomas Trautmann

Partner, Hamburg Office

  • 13 years in consulting
  • Physics, University Münster (2002)
  • PhD Economics, ETH Zürich (2007)
  • Before CYLAD: McKinsey & Company


Thomas Trautmann joined CYLAD Consulting in 2013.


Since 2003 he has been active in the strategy and management consulting business and his expertise covers product development & product management, product launch management, merger management & post-merger integration, market entry and business building strategy. He also covers industries such as Electronics, Electric Power, Oil & Gas, as well as Automotive and Aerospace.


Prior to CYLAD Consulting, Thomas Trautmann worked with McKinsey & Company in Germany with projects in Europe, the US and Asia.


Thomas Trautmann holds a Diploma in Physics from the University of Münster (2002) and a PhD from ETH Zürich, Department of Management, Technology and Economics (2007). He studied at the Universities of Freiburg and Trier and holds a Bachelor of Science from Massey University, New Zealand.

Paul Archer

Partner, Paris Office

  • 19 years in operations and consulting
  • Mech Eng, Ecole Polytechnique Paris (1990)
  • Mat Eng, École des Mines de Paris (1995)
  • Before CYLAD: A.T. Kearney, Capgemini


Paul Archer founded CYLAD Consulting S.A.S. with Sébastien Chaussoy.


Since 2001 he has been active in the strategy and management consulting business and his expertise covers program management, operational performance and R & D competitiveness predominantly in the Aerospace & Defence industries.


Prior to CYLAD Consulting, Paul Archer began his career at Astrium as R&D leader in composites for 5 years. He then worked as a consultant at A.T. Kearney and Capgemini Consulting.


Paul Archer graduated from École Polytechnique (1990) and École des Mines de Paris (1995).

Dr. Steffen Petersen

Partner, Hamburg Office

  • 9 years in consulting
  • Civil Engineering & PhD Mech Eng, TU Hamburg-Harburg (2006)
  • Postdoc Mech Eng, Stanford University (2007)
  • Before CYLAD: Boston Consulting Group


Steffen Petersen joined CYLAD Consulting in 2014.


Since 2007, he has been active in strategy and management consulting. His main expertise covers program and project management, operational excellence as well as product and market strategies, primarily in the industry sectors Machinery and Plant Engineering, Metals and Natural Resources as well as Chemicals and Building Materials.


Prior to CYLAD Consulting, Steffen Petersen worked with the Boston Consulting Group in Germany with projects in Europe, Africa, Latin America and Asia-Pacific.


Steffen Petersen holds a Master’s in Civil Engineering from the Hamburg University of Technology where he also received a PhD in Mechanical Engineering (2006). Prior to his professional career in consulting, he worked as a postdoc at Stanford University in the Mechanical Engineering Department.

Patrick Sage

Partner, Toulouse Office

  • 15 years in consulting
  • Industrial Eng, École des Mines de Paris (1997)
  • MBA, Collège des Ingénieurs Paris (1998)
  • Before CYLAD: McKinsey & Company


Patrick Sage joined CYLAD Consulting in 2012.


Since 2000 he has been active in the strategy and management consulting business. His expertise covers strategic and operational transformations, in particular in the Aerospace industry, IT services and the Healthcare sector.


Prior to CYLAD Consulting, Patrick Sage was Project Director at McKinsey & Company. He worked there from 2000 to 2012, both in the Paris and London offices. He started his career at Air Liquide Healthcare in France and Spain.


Patrick Sage graduated from the École des Mines de Paris (1997) and the Collège des Ingénieurs (1998).

Olivier Paget

Partner, Paris Office

  • 17 years in consulting
  • Engineering, Ecole Polytechnique Paris (1993)
  • Engineering, ENSPM Paris (1996)
  • Before CYLAD: Arthur Andersen, BearingPoint, OC&C


Olivier Paget joined CYLAD Consulting in 2010.


Since 1998 he has been active in the strategy and management consulting business and his expertise covers business transformation, R&D competitiveness and operational performance, predominantly in Automotive, Aerospace & Defence, Railway, Utilities and Life Sciences.


Prior to CYLAD Consulting, Olivier Paget worked as Development Engineer within the technical department of an automotive tier 1 supplier. Then he worked as a consultant at Arthur Andersen, BearingPoint and OC&C.


Olivier Paget graduated from École Polytechnique (1993) and École Nationale Supérieure du Pétrole et des Moteurs – IFP School (1996).

Alberto Buron

Partner, Paris Office

  • 18 years in operations and consulting
  • ESCP (2000)
  • Master in Business & Economy, University of Valladolid in Spain (1997)
  • Before CYLAD: L’Orèal, Masaï, Agarius, Lynx


Alberto Buron joined CYLAD Consulting in 2013 as a Manager to develop a purchasing optimization offer.


Alberto Buron’s area of expertise covers transformation of purchasing and supply chain departments by use of digitalization and smart data, cost optimisation of providers’ service level, and optimisation of supply chain risk. His industry expertise ranges from aeronautics, to railway transport, agri-food, logistics, and energy.


Alberto Buron started his career as a credit and controlling manager within the logistics department of L’Oréal – specifically the “Cosmetic active” division. In 2001, he joined Masaï Consulting, focusing on purchasing optimization. Following this he worked at Agarius, and finally Lynx.


Alberto Buron graduated from ESCP in 2000 and the University of Valladolid in Spain in 1997 with a degree in Economy & Business.

Sébastien Cailliau

Partner, Paris Office

  • 20 years in consulting
  • Master’s degree, engineering, Institut Supérieur de l’Aéronautique et de l’Espace – ISAE SUPAERO (1997)
  • Before CYLAD: Boston Consulting Group, Roland Berger


Sébastien Cailliau joined CYLAD Consulting in 2018.


He has a thorough knowledge in Aerospace & Defense sector. His expertise covers growth, and market entry strategies, program management, performance improvement programs and operational efficiency. He has also worked with government entities and European institutions.


Prior to CYLAD Consulting, Sébastien worked for 20 years in management consulting first at Roland Berger then at BCG.
Sébastien graduated from Ecole Nationale Supérieur de l’Aéronautique et de l’Espace in 1997.