Global Leadership Team

GF Building Flow Solutions' Global Leadership Team (GLT) is responsible for the strategic and operational leadership of the division. Our international management team combines extensive experience, visionary thinking, and a collective commitment to high-quality, innovative solutions with a clear market and customer focus and continuously increasing global availability. GF Building Flow Solutions is a division of Georg Fischer AG.

Management shareholding

Michael Rauterkus

b. 1966, German citizen, M.Sc. (BA)
President of GF Building Flow Solutions
Employed by Uponor since 2021
Member of the GLT since 21 August 2021

Key positions of trust

Chairman of the Advisory Board, SLV GmbH, 2017–

Career highlights

President and CEO, Uponor Corporation, August 2021–
CEO, Grohe AG, 2015–2019
Several managerial positions at the Grohe Group, 2006–2015 
General Manager Northern Continental Europe, Hasbro, Inc., 2004–2006 
Several managerial positions, Levi Strauss & Co., 1997–2004  
Managerial positions in sales, Kraft Jacobs Suchard (now Mondelez), 1990–1997

Jonas Brennwald

b. 1968, Swedish and Swiss citizen, B.Sc. (Mktg.)
President of GF Building Flow Solutions Europe
Employed by Uponor since 2024
Member of the GLT since 1 January 2024

Career highlights

President, Building Solutions – Europe, Uponor GmbH, January 2024–
Co-CEO, Grohe AG, 2019–2023
CEO, Lixil EMENA, 2019–2023
Various sales executive and regional management positions, Grohe AG, 2012–2019
General Manager International, Doorman Products Europe, 2008–2012
Sales Director for Nordisc, Baltics and Iceland, Goodyear Tire and Rubber Company, 2005–2007
Country Division Manager for Sweden, ECOLAB, 2002–2005
Various international sales executive positions, MARS, 1991–2002

Andres Caballero

b. 1974, United States citizen, M.Sc. (Eng.)
President of GF Building Flow Solutions Americas
Employed by Uponor since 2022
Member of the GLT since 25 July 2022

Career highlights

President, Building Solutions – North America, Uponor, Inc., July 2022–
Co-founder, Buendia Productions LLC, 2019–
Founder and President, ArtixMind LLC, 2019–2022
Co-founder and Operating Partner, Kimerance Consulting Group S.A., 2018–2022
Business Executive for Home and Building Technologies, Honeywell, 2008–2018
Market Manager Americas, Topcon-Danfoss joint venture, 2005–2008

Thomas Fuhr

b. 1965, German citizen, M.Sc. (Mech. Eng.)
Chief Technology Officer
Employed by Uponor since 2022
Member of the GLT since 1 October 2022

Career highlights

Chief Technology Officer, Uponor GmbH, October 2022–
Co-CEO, Grohe AG, 2019–2022
Chief Operating Officer and Deputy CEO, Grohe AG, 2016–2019
Chief Operating Officer, Grohe AG, 2013–2015
Several managerial positions in Development, Manufacturing, Quality, Logistics and Purchasing at Mercedes-Benz, 1989–2013

Jennifer Hauschildt

b. 1969, United States citizen, BA (Math.), MBA
Chief Human Resources Officer
Employed by Uponor since 2014
Member of the GLT since 1 April 2022

Key positions of trust

Member of the Board, MidWestOne Bank, 2019–
Member of the Board, MidWestOne Financial Group Inc (MOFG), 2019–

Career highlights

Chief Human Resources Officer, Uponor, Inc., April 2022–
Vice President, Human Resources, Building Solutions - North America, Uponor, Inc., 2019–03/2022
Vice President, IT, Building Solutions - North America, Uponor, Inc., 2014–2019
Various managerial positions in HR and IT, Thomson Reuters, 1993–2013

Reetta Härkki

b. 1965, Finnish citizen, Master of Laws, trained by the bench
Senior Vice President and Chief Legal Officer
Employed by Uponor since 2008
Member of the GLT since 1 July 2022

Career highlights

Senior Vice President and Chief Legal Officer, Uponor Corporation, July 2022–
General Counsel, Uponor Corporation, January 2008–June 2022
Senior Legal Counsel, Nokia Corporation, April 2001–January 2008
General Counsel, Sonera Zed Ltd, February 2000–April 2001
Assistant General Counsel, Sonera Corporation, April 1996–January 2000
Attorney, Bützow & Co Ltd Attorneys-at-Law, June 1989–April 1996

Markus Melkko

b. 1975, Finnish citizen, M.Sc. (Tech.), B.Sc. (Econ.)
Chief Financial Officer
Employed by Uponor since 2022
Member of the GLT since 1 January 2022

Career highlights

Chief Financial Officer, Uponor Corporation, January 2022–
Interim CEO, Tikkurila Oyj, June 2021–December 2021
CFO, Tikkurila Oyj, February 2019–June 2021
CFO, Unisport Saltex, August 2017–January 2019
CFO, Ekokem Oyj, May 2015–August 2017
EVP, Business Development and Finance, Cleantech Industries Global N.V., 2014–2015
VP, Strategy and Business Development, Fazer Food Services, 2013–2014

Charlotta Persfell

b. 1975, Finnish citizen, M.Sc. (Chem. Eng. and Ind. Econ.)
Chief Marketing Officer
Employed by Uponor since 2023
Member of the GLT since 23 October 2023

Career highlights

Chief Marketing Officer, Uponor Corporation, October 2023–
Chief Product, Marketing and Digital Officer, Kährs Group, January 2019–October 2023
Vice President Sales ACD Business Area EMEA, Perstorp Group, May 2016–December 2018
Global Vice President Marketing, Perstorp Group, June 2014–April 2016
Various managerial positions in Marketing and Brand Management, Unilever, 2001–2014

Cesár Sayegh

b. 1991, French citizen, MBM, B.Sc. (Chem.)
Head of Strategy Execution
Employed by Georg Fischer since 2019
Member of the GLT since 2 February 2024

Career highlights

Various management positions at Georg Fischer AG, 2019–