The construction sector
must reinvent itself

1/4
of GHG emissions related to buildings
+20%
costs increase
20%
population poorly housed
<1%
productivty gains

LEVERAGE TECHNOLOGY TO DEMOCRATIZE LOW-CARBON CONSTRUCTION

DIGITIZED DESIGN

Thanks to its innovative construction method, Vestack makes it possible to produce buildings that combine high environmental performance with competitive costs,

INDUSTRIALIZED CONSTRUCTION

BIM and off-site construction speed up design and construction, while ensuring a high level of quality.

Low carbon
strong impact

Vestack buildings have stunning environmental performance, with a 3x better carbon footprint in the construction stage and an operational efficiency beyond the strongest regulatory standards, by design. We integrate a significant share of bio-sourced materials, enabling us to achieve circularity scores of 70%.
Our off-site construction process, praised by neighbors and local authorities, drastically reduces construction site nuisances. It also enables us to offer better working conditions to the construction staff.
Democratizing low-carbon construction finally means fighting in favor of affordable housing.

Building with Vestack transforms the building into a carbon sink

Source: Comparative LCA by Solab

An experienced team, dedicated to your projects

Vestack was founded by three former employees of Unibail-Rodamco-Westfield and McKinsey. The founders are surrounded by a first-rate team, combining experience in circular economy, industrialization, construction, real estate development and software, acquired at Ossabois, Algeco, Saint-Gobain, Vinci, Crédit Agricole Immobilier etc.

Our Manifesto

Nicolas GUINEBRETIERE

Co-founder

After a first position at Skecthfab, Nicolas continued his professional career as a consultant with McKinsey. He spent several years working on infrastructure projects. In particular, he overseesthe sales and operational departments. Nicolas is a graduate of ESSEC business school and Dauphine.

Jean-Christophe PIERRON

Co-founder

Jean-Christophe spent 6 years at McKinsey, where he was particularly involved in operational excellence projects for process industries. He brings a wealth of industrial and engineering experience to Vestack. Jean-Christophe is a graduate of CentraleSupélec and ESCP Europe.

Sylvain Bogeat

Co-founder

Sylvain Bogeat specializes in urban planning and real estate. After working as an advisor to the French Minister for Budget, Sylvain spent several years with Unibail-Rodamco-Westfield. He brings his expertise in real estate development and corporate management. Sylvain is a graduate of HEC Paris, Paris I and Ecole Normale Supérieure.

Louis GRIVOT-BRUNHES

 Director of Operations 

Louis has mansged several Bouygues immobilier product R&D and operationnal departments. He completed his BIM experience as national technical director for Geoxia. He is now Director of Operations for the Vestack team.

Nathalie MOREAU

Sales manager

Nathalie is an expert in modular construction. She has over 30 years’ experience with leading players in the sector, including Atemco, Algeco, Heidelberg and Dassé. Nathalie joined Vestack in 2022 to structure the sales team.

Alexandre GRISAY-FRAOUN  

Finance director

After 11 years with Vinci Energies as management controller and then financial manager, Alexandre joined SPIE Nucléaire as head of management control. Alexandre joined Vestack in 2022 to share his expertise in the industrial field. Alexandre is a graduate of ISC Paris.

Pierre-Aymeric MASSE

Chief Technology Officer

After a first position at Orange as an R&D engineer, Pierre-Aymeric joined Afnic as Lead Data Engineer. He then specialized in the construction sector, where he gained experience working with major players in the industry. Before joining Vestack, Pierre-Aymeric worked for Saint-Gobain, notably as CTO for Saint-Gobain Solutions France. He also taught at ESME Sudria and the Ecole des Ingénieurs de la ville de Paris for several years. Pierre-Aymeric is a graduate of IMT Atlantique (formerly Télécom Bretagne).

Quentin TOURTELIER

R&D Design Office Manager

A true wood enthusiast, Quentin started out as a carpenter’s apprentice, then gradually moved on to top-ranking engineering offices (CMBS, Gauthier, QSB) as an engineer. Quentin joined Vestack in 2020, and is now in charge of R&D for the constructive system. Quentin is a graduate of the Ecole Supérieure du Bois.

Thomas-Elie HUBER

Real Estate Development Director

Thomas-Elie specializes in real estate development. After spending 4 years at the French Ministry of Ecology as head of real estate programs, he joined a developer (EPAURIF) before becoming Director of new construction and renovation programs at Domaxis (Action Logement Group). After a number of experiences with Arcade, Alila and, most recently, Crédit Agricole Immobilier, Thomas-Elie joined Vestack to develop direct sales.

Laurent Berthelot

Production Manager

Laurent has over 25 years’ experience in industrial site management. He was Site Manager at Lory Fonderies, a heavy industry company in the metallurgy sector. He joined Vestack in 2021 as Production Manager.

Hervé MANET

Real Estate Advisor

Hervé is a specialist in the world of real estate. He spent 17 years with SAE, including 6 as General Manager of the Ile-de-France development division. He then spent eight years as Chairman of Bouwfonds Marignan Immobilier. In 2006, he joined Icade’s Executive Committee as Chairman of Icade Promotion. In 2016, Hervé became Chairman of the Management Board of Heracles Investissement. He was also Chairman of the Ile-de-France region of the Fédération des promoteurs immobiliers, and a director of ORIE and ORF. Hervé is currently advisor to the Chairman of Léon Grosse and a director of Perial AM. Hervé is graduate of Sciences Po Lyon.

Thierry de SEVERAC

Construction advisor

Thierry started his career at the Générale des Eaux group, developing and managing concession and PPP projects in France and Europe. In particular, he created the telecom infrastructure network concession and operation business within the Vinci group (now Covage). In 2004, he joined the Bouygues group, first in London as Director of the Residential and Urban Development business, then in France, where he took over the management of Linkcity in the Centre and South-West regions. He joined Bouygues Bâtiment Ile-de-France in 2013 as Director of Engineering and Development for Habitat Social and became Director of Engineering for Bouygues Bâtiment Ile-de-France in 2017 and then for Bouygues Bâtiment France Europe in 2018. In July 2019, he joined the ADP Group Board as Director of Development and Engineering. Thierry is a graduate of Centrale Paris.

Claude-Alain TARDY 

Industry Advisor - Independent member of the Strategic Committee

Claude-Alain is an expert in construction and industrialization. His 40 year experience at Saint Gobain, a leader in building materials, enabled him to manage several international business units. He was a member of Saint-Gobain’s Board. He is now a board member of Orora

Xavier LEPINE

Real Estate Advisor

Xavier began his career in finance at the International Division of the Bank of the European Union (1981), before founding FP Consult in 1989 to invest in emerging market debt. In 1997, he became Chairman of the Management Board of Fortis Investment Management France, in charge of Alternative Investments at Fortis Investment. In 2001, he joined Crédit Mutuel Nord Europe and developed the asset management business by creating La Française, of which he was Chairman of the Management Board until 2020. In 2023, he founded the Société des Nouveaux Propriétaires to democratize access to property ownership. Xavier is also Chairman of the Institut de l’Epargne Immobilière et Foncière (IEIF) and of Paris Ile de France Capitale Economique (PCE). Xavier holds a 3rd degree in Monetary Economics and International Finance (1981) from Paris-Dauphine University.

Joanna PARENT

Member of the Strategic Committee - Mirova

Joanna began her career in 2007 in financial consulting, first at Société Générale, then at GreenMax Capital Advisors and Natureo Finance, specializing in financing ecological transition projects. In 2015, she joined the investment teams at Suez Ventures, then the Smart and Environmental Solutions division. She joined Mirova in 2022 as Investment Director of the Mirova Environment Acceleration Capital fund. Joanna is a graduate of Poznań University of Economics and ESCP Europe.

Anne BOULET

Member of the Strategic Committee - Mirova

Anne has over 8 years’ of experience investing in energy transition projects at Eren and Total. She joined Mirova in 2021, to become Investment Director of the Mirova Environment Acceleration Capital fund. Anne is a graduate of ESSEC business school.

Yvan-Michel EHKIRCH

Member of the Strategic Committee - Karista

Yvan-Michel began his career in the software industry in 1991. He spent 10 years in marketing, business development and management at major international software suppliers, and was European Director of Marketing and Development at Engineering Animation Inc. in the USA (now Siemens PLM). Since 2001, Yvan-Michel has been working in the venture capital sector. He focuses on digital and technology companies. He joined Karista in 2011, in charge of the Paris Region Venture Fund. Yvan-Michel holds a master’s degree in computer science from ESIEA.

Benjamin ZERBIB

Member of the Strategic Committee - Karista

Benjamin began his career in venture capital at Clipperton Finance, a global investment banking platform dedicated to high-tech companies, and at Gimv, a pan-European private equity and venture capital firm. He then joined Ares & Company a strategy consulting firm focused on the financial services industry, before joining Happn, a dating app with over 100M users, where he was in charge of strategic partnerships. Benjamin joined Karista in 2018. Benjamin graduated from EDHEC Business School and studied in Hong Kong (HKUST) and South Africa (University of Stellenbosch).

Nicolas CELIER

Member of the Strategic Committee - Ring Capital

After 5 years in the corporate finance team at BNP Paribas, Nicolas joined the world of venture capital investment at Crédit Agricole Ventures. He joined Alven in 2005 as a partner. In 2011, he founded Investir&+, specializing in impact investing. He founded Ring Capital in 2016. Nicolas is also the co-founder of France Digitale and Tech For Good. Nicolas is a graduate of HEC Paris.

Charlotte LAFONT

Member of the Strategic Committee - Ring Capital

Charlotte began her career at Total in 2014 as a financial analyst. She then joined the Total Ventures investment team and specialized in decarbonization, energy efficiency and decarbonized mobility technologies. She joined Ring Capital in 2021 as Principal. Charlotte is a graduate of Neoma Rouen.

Hervé MANET

Real Estate Advisor

Hervé is a specialist in the world of real estate. He spent 17 years with SAE, including 6 as General Manager of the Ile-de-France development division. He then spent eight years as Chairman of Bouwfonds Marignan Immobilier. In 2006, he joined Icade’s Executive Committee as Chairman of Icade Promotion. In 2016, Hervé became Chairman of the Management Board of Heracles Investissement. He was also Chairman of the Ile-de-France region of the Fédération des promoteurs immobiliers, and a director of ORIE and ORF. Hervé is currently advisor to the Chairman of Léon Grosse and a director of Perial AM. Hervé is graduate of Sciences Po Lyon.

Thierry de SEVERAC

Construction advisor

Thierry started his career at the Générale des Eaux group, developing and managing concession and PPP projects in France and Europe. In particular, he created the telecom infrastructure network concession and operation business within the Vinci group (now Covage). In 2004, he joined the Bouygues group, first in London as Director of the Residential and Urban Development business, then in France, where he took over the management of Linkcity in the Centre and South-West regions. He joined Bouygues Bâtiment Ile-de-France in 2013 as Director of Engineering and Development for Habitat Social and became Director of Engineering for Bouygues Bâtiment Ile-de-France in 2017 and then for Bouygues Bâtiment France Europe in 2018. In July 2019, he joined the ADP Group Board as Director of Development and Engineering. Thierry is a graduate of Centrale Paris.

Claude-Alain TARDY 

Industry Advisor - Independent member of the Strategic Committee

Claude-Alain is an expert in construction and industrialization. His 40 year experience at Saint Gobain, a leader in building materials, enabled him to manage several international business units. He was a member of Saint-Gobain’s Board. He is now a board member of Orora

Xavier LEPINE

Real Estate Advisor

Xavier began his career in finance at the International Division of the Bank of the European Union (1981), before founding FP Consult in 1989 to invest in emerging market debt. In 1997, he became Chairman of the Management Board of Fortis Investment Management France, in charge of Alternative Investments at Fortis Investment. In 2001, he joined Crédit Mutuel Nord Europe and developed the asset management business by creating La Française, of which he was Chairman of the Management Board until 2020. In 2023, he founded the Société des Nouveaux Propriétaires to democratize access to property ownership. Xavier is also Chairman of the Institut de l’Epargne Immobilière et Foncière (IEIF) and of Paris Ile de France Capitale Economique (PCE). Xavier holds a 3rd degree in Monetary Economics and International Finance (1981) from Paris-Dauphine University.

Nicolas GUINEBRETIERE

Co-founder

After a first position at Skecthfab, Nicolas continued his professional career as a consultant with McKinsey. He spent several years working on infrastructure projects. In particular, he overseesthe sales and operational departments. Nicolas is a graduate of ESSEC business school and Dauphine.

Jean-Christophe PIERRON

Co-founder

Jean-Christophe spent 6 years at McKinsey, where he was particularly involved in operational excellence projects for process industries. He brings a wealth of industrial and engineering experience to Vestack. Jean-Christophe is a graduate of CentraleSupélec and ESCP Europe.

Sylvain Bogeat

Co-founder

Sylvain Bogeat specializes in urban planning and real estate. After working as an advisor to the French Minister for Budget, Sylvain spent several years with Unibail-Rodamco-Westfield. He brings his expertise in real estate development and corporate management. Sylvain is a graduate of HEC Paris, Paris I and Ecole Normale Supérieure.

Nicolas GUINEBRETIERE

Co-founder

After a first position at Skecthfab, Nicolas continued his professional career as a consultant with McKinsey. He spent several years working on infrastructure projects. In particular, he overseesthe sales and operational departments. Nicolas is a graduate of ESSEC business school and Dauphine.

Jean-Christophe PIERRON

Co-founder

Jean-Christophe spent 6 years at McKinsey, where he was particularly involved in operational excellence projects for process industries. He brings a wealth of industrial and engineering experience to Vestack. Jean-Christophe is a graduate of CentraleSupélec and ESCP Europe.

Sylvain Bogeat

Co-founder

Sylvain Bogeat specializes in urban planning and real estate. After working as an advisor to the French Minister for Budget, Sylvain spent several years with Unibail-Rodamco-Westfield. He brings his expertise in real estate development and corporate management. Sylvain is a graduate of HEC Paris, Paris I and Ecole Normale Supérieure.

Claude-Alain TARDY 

Industry Advisor - Independent member of the Strategic Committee

Claude-Alain is an expert in construction and industrialization. His 40 year experience at Saint Gobain, a leader in building materials, enabled him to manage several international business units. He was a member of Saint-Gobain’s Board. He is now a board member of Orora

Joanna PARENT

Member of the Strategic Committee - Mirova

Joanna began her career in 2007 in financial consulting, first at Société Générale, then at GreenMax Capital Advisors and Natureo Finance, specializing in financing ecological transition projects. In 2015, she joined the investment teams at Suez Ventures, then the Smart and Environmental Solutions division. She joined Mirova in 2022 as Investment Director of the Mirova Environment Acceleration Capital fund. Joanna is a graduate of Poznań University of Economics and ESCP Europe.

Anne BOULET

Member of the Strategic Committee - Mirova

Anne has over 8 years’ of experience investing in energy transition projects at Eren and Total. She joined Mirova in 2021, to become Investment Director of the Mirova Environment Acceleration Capital fund. Anne is a graduate of ESSEC business school.

Yvan-Michel EHKIRCH

Member of the Strategic Committee - Karista

Yvan-Michel began his career in the software industry in 1991. He spent 10 years in marketing, business development and management at major international software suppliers, and was European Director of Marketing and Development at Engineering Animation Inc. in the USA (now Siemens PLM). Since 2001, Yvan-Michel has been working in the venture capital sector. He focuses on digital and technology companies. He joined Karista in 2011, in charge of the Paris Region Venture Fund. Yvan-Michel holds a master’s degree in computer science from ESIEA.

Benjamin ZERBIB

Member of the Strategic Committee - Karista

Benjamin began his career in venture capital at Clipperton Finance, a global investment banking platform dedicated to high-tech companies, and at Gimv, a pan-European private equity and venture capital firm. He then joined Ares & Company a strategy consulting firm focused on the financial services industry, before joining Happn, a dating app with over 100M users, where he was in charge of strategic partnerships. Benjamin joined Karista in 2018. Benjamin graduated from EDHEC Business School and studied in Hong Kong (HKUST) and South Africa (University of Stellenbosch).

Nicolas CELIER

Member of the Strategic Committee - Ring Capital

After 5 years in the corporate finance team at BNP Paribas, Nicolas joined the world of venture capital investment at Crédit Agricole Ventures. He joined Alven in 2005 as a partner. In 2011, he founded Investir&+, specializing in impact investing. He founded Ring Capital in 2016. Nicolas is also the co-founder of France Digitale and Tech For Good. Nicolas is a graduate of HEC Paris.

Charlotte LAFONT

Member of the Strategic Committee - Ring Capital

Charlotte began her career at Total in 2014 as a financial analyst. She then joined the Total Ventures investment team and specialized in decarbonization, energy efficiency and decarbonized mobility technologies. She joined Ring Capital in 2021 as Principal. Charlotte is a graduate of Neoma Rouen.

Nicolas GUINEBRETIERE

Co-founder

After a first position at Skecthfab, Nicolas continued his professional career as a consultant with McKinsey. He spent several years working on infrastructure projects. In particular, he overseesthe sales and operational departments. Nicolas is a graduate of ESSEC business school and Dauphine.

Jean-Christophe PIERRON

Co-founder

Jean-Christophe spent 6 years at McKinsey, where he was particularly involved in operational excellence projects for process industries. He brings a wealth of industrial and engineering experience to Vestack. Jean-Christophe is a graduate of CentraleSupélec and ESCP Europe.

Sylvain Bogeat

Co-founder

Sylvain Bogeat specializes in urban planning and real estate. After working as an advisor to the French Minister for Budget, Sylvain spent several years with Unibail-Rodamco-Westfield. He brings his expertise in real estate development and corporate management. Sylvain is a graduate of HEC Paris, Paris I and Ecole Normale Supérieure.

Louis GRIVOT-BRUNHES

 Director of Operations 

Louis has mansged several Bouygues immobilier product R&D and operationnal departments. He completed his BIM experience as national technical director for Geoxia. He is now Director of Operations for the Vestack team.

Nathalie MOREAU

Sales manager

Nathalie is an expert in modular construction. She has over 30 years’ experience with leading players in the sector, including Atemco, Algeco, Heidelberg and Dassé. Nathalie joined Vestack in 2022 to structure the sales team.

Alexandre GRISAY-FRAOUN  

Finance director

After 11 years with Vinci Energies as management controller and then financial manager, Alexandre joined SPIE Nucléaire as head of management control. Alexandre joined Vestack in 2022 to share his expertise in the industrial field. Alexandre is a graduate of ISC Paris.

Pierre-Aymeric MASSE

Chief Technology Officer

After a first position at Orange as an R&D engineer, Pierre-Aymeric joined Afnic as Lead Data Engineer. He then specialized in the construction sector, where he gained experience working with major players in the industry. Before joining Vestack, Pierre-Aymeric worked for Saint-Gobain, notably as CTO for Saint-Gobain Solutions France. He also taught at ESME Sudria and the Ecole des Ingénieurs de la ville de Paris for several years. Pierre-Aymeric is a graduate of IMT Atlantique (formerly Télécom Bretagne).

Quentin TOURTELIER

R&D Design Office Manager

A true wood enthusiast, Quentin started out as a carpenter’s apprentice, then gradually moved on to top-ranking engineering offices (CMBS, Gauthier, QSB) as an engineer. Quentin joined Vestack in 2020, and is now in charge of R&D for the constructive system. Quentin is a graduate of the Ecole Supérieure du Bois.

Thomas-Elie HUBER

Real Estate Development Director

Thomas-Elie specializes in real estate development. After spending 4 years at the French Ministry of Ecology as head of real estate programs, he joined a developer (EPAURIF) before becoming Director of new construction and renovation programs at Domaxis (Action Logement Group). After a number of experiences with Arcade, Alila and, most recently, Crédit Agricole Immobilier, Thomas-Elie joined Vestack to develop direct sales.

Laurent Berthelot

Production Manager

Laurent has over 25 years’ experience in industrial site management. He was Site Manager at Lory Fonderies, a heavy industry company in the metallurgy sector. He joined Vestack in 2021 as Production Manager.

Join the movement

Vestack is a group with a strong environmental and social impact, whose employees are proud to contribute to the transition to low-carbon construction.

Our company is growing quickly and has big ambitions, Our strong growth objectives are supported by leading investors (Mirova – Banque Populaire Caisse d’Epargne group; Ring Capital; Karista). Vestack’s teams have a strong culture of innovation, and everyone is able to make a difference in a group which has kept a human scale. Our managers, who have decades of experience working for market leaders, share their knowledge and network with new hires. The team bonds together over a mix of positive working environment, shared values and the opportunity to become a shareholder in the company.

Impact

Ambition

Innovation

Team Spirit

Collective Intelligence

Contact us

News

Headquarters:
37 rue Bergère,
75009 Paris

Saint-Germain-Laval assembly site:
1 rue des Argiles Vertes,
77130 Saint-Germain-Laval

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