Third International Forum on
TAKT PRODUCTION IN CONSTRUCTION

Iris Tommelein

Forum Host: Iris is a Distinguished Professor of Engineering and Project Management and she directs the Project Production Systems Laboratory (P2SL) at UC Berkeley. She was recognized by the Lean Construction Institute (LCI) as a Lean Pioneer. Since 2012 she has been involved in takt planning research, workshops, and implementation.

Aleksi Heinonen

Theme 1 Chair: Aleksi is a partner in Vison Oy, a pioneering Finnish consulting company in IPD and takt production implementation. Aleksi has been involved in dozens of takt production cases, ranging from small residential projects to megaprojects such as hospitals and airports.

Joonas Lehtovaara

Theme 2 Chair: Joonas completed his PhD at Aalto University in Finland, developing his expertise and advancing the state of the art of takt production. Currently, Joonas works as a development manager at A-Insinöörit, Finnish engineering and consulting office.

Jaakko Mäkikalli, Makinen

Jaakko has extensive experience in managing projects in the Marine Industry. He has successfully planned, scheduled, and executed dry dock projects for more than 20 million euros. Mäkikalli joined Makinen in 2016 as project manager. He became vice president for the company’s refurbishment department, and CEO of the company in 2021. Mäkikalli also has vast experience and know-how in marketing and business relations as well as in travel and hospitality business.

Ari Viitanen, Carinafour

Ari is a professional business owner. He held management positions in international marine business between 1999 and 2014 during which he was involved in business model renewal and solution development globally. He founded Carinafour in 2012 and now provides supply chain and logistics solutions both for construction and marine industries. Carinafour developed its own digital material management platform called CALS.

Peter Meijnen, Denkyu Consulting

Peter is a feelance consultant based in Berlin, Germany, specializing in Lean Thinking and Doing. Practicing Lean since 1998, providing advice, implementation, and coaching from the shop floor to the executive level, he has worked across four continents, supporting clients across many different industries, from manufacturing to construction and semi-conductors.

Veronica Ksiazenicki, Stiler, Uruguay

Veronica has 11 years of experience as site manager and is Head of Production Control of Stiler Constructora, the largest construction company in Uruguay. They started Lean implementation in 2021 and have successfully implemented both Last Planner© and Takt Production in several infrastructure projects including bridges, roads, water and sewage systems, electricity distribution, and telecommunication networks. 

Carlos Formoso, Professor, UFRGS

Carlos is a full professor in Construction Management at the Federal University of Rio Grande do Sul, Porto Alegre, Brazil, and an IGLC member since 1996. For thirty years of academic career, he has developed several research projects related to Lean implementation in partnership with the industry, including contractors, real estate developers, housing funding agencies, and companies that deliver prefabricated systems.

Hans Thomas Holm, Statsbygg, Norway

Hans Thomas works as a head of project management at Statsbygg, Norway. He has vast experience in project management and applying lean concepts into practice. He has also co-authored a book “Lean methodology in design and construction: Experiences from the project.“

Spencer Easton, Mortensen

Spencer is an author, subject matter expert, practitioner and passionate builder within the context of takt in construction. His degree is in construction management. He has taught thousands of people across the globe & currently is directing the company-wide efforts for 5S, Last Planner© System, and Takt Planning at Mortenson Construction.