Finnish construction is among the best in the world. The cutting-edge Finnish construction work is well known for its quality and the reliability of the contractors. Construction is well organized and regulated, while the parties involved are amongst the most comprehensively educated in the world. With projects developing into more complex and broader forms, the management of the projects require more and more resources and professional know-how.

We at Vison provide consulting, training and counselling for all things related to demanding projects, all the while making sure that the projects reach their goals within the given budget and time frame. Without compromising quality.

Visonin suomen- ja englanninkieliset Allianssiraportit 012020
Visonin suomen- ja englanninkieliset Allianssiraportit 012020

We offer consulting in the procurement of complex projects and services and Lean Construction, as well as project and organisation level training and counselling. We have worked as consultants in nearly 100 integrated project deliveries and in dozens of other demanding public procurements.

We bring all the parties involved in a project together, all the while utilising our combined know-how to prevent the loss of value and guarantee the best possible foundation for the success of the project.

Our objective is to improve and refine Finnish project delivery and Lean Construction and by doing so, make Finnish real estate development and construction the best in the world.

Vison was established in 2012 and now nearly 20 people work at or Helsinki and Oulu offices.

Vison in numbers

IPT Projects Nearly 100 (5/2022)
Alliances 63 (5/2022)
Takt production projects nearly 40
Value of the projects nearly 7,0 billion euros
Feedback from our Lean training 4,5 (on a scale of 1 – 5)
Personnel 21
Our yearly growth about 10 %
Annual revenue (2021-2022) 3,1 million euros
Business profit about 10 %


Miika Ronkainen ›

Managing partner

Tel: +358 408 610 938

Miika works as a lean coach and stands for the development of project integration and flow efficiency. He is also the executive director for the Finnish Lean Construction institute.

Jani Saarinen ›

Partner, Chairman

Tel: +358 400 625 670

Jani oversees the design process of the planning models for public procurements and the competitive tendering of churches to railroads and more demanding service agreements.

Jani specializes in strategic leadership and constantly pushing his clients to improve their work and design processes. Jani has a broad understanding and many years of experience concerning the real estate and construction sector, having previously worked as the CEO in the oldest Finnish engineering firm, RAKLI and in many other leadership positions within the public infrastructure sector. His know-how includes, but is not limited to, infrastructure projects and financing and contracting models within the real estate and building sectors, as well as knowledge of the many different national and international organisations within the sector.

Jani is also a certified property manager and glazier, as well as a graduate engineer in civil engineering, who, in his spare time, likes to play ballgames of all kinds and taste wines, in equal measure.

Lauri Merikallio ›


Tel: +358 400 450 217

Lauri works as a coach and Lean Construction consultant in projects from start to finish.

Lauri got the spark for Lean Construction as a researcher for the University of California, Berkeley. He has worked in countless projects, providing training and consulting in the design of project systems, early integration, sparring of project leaders, improvement of integrated teams, big room planning, Last Planner Systems and takt production.

Lauri has been awarded several honours within the Finnish building sector for his accomplishments in tackling demanding projects. In his spare time Lauri likes to go sailing, make music with his friends, uphold a healthy lifestyle, and spend quality time with his family.

Anders Nordström ›


Tel: +358 405 255 561

Anders is in charge of the planning models for public procurements and the competitive tendering of everything from schools and hospitals to railroads.

Anders specializes in promoting and enhancing the collaboration between the customer and all parties involved in a project. Anders has had a long and illustrious career, having previously worked as the CEO of a construction company in Sweden and in many other leadership positions within the public sector.

Anders has also been certified in Sweden as “partneringleader”. He spends most of his spare time, hammer in hand, immersed in woodwork.

Antti Piirainen ›


Tel: +358 400 777 705

Antti works ceaselessly with his clients to increase the value creation of the real estate and construction sector, thus increasing the productivity of the sector.

Antti is interested in Lean philosophy, integrated project deliveries and the facilitating and improving of project leadership. He has experience of over 30 integrated project deliveries, starting from the first alliance projects in Finland. Antti had amassed over 30 years of combined experience within different public administration services and leadership positions, before starting at Vison, making him one of the most experienced actors within the industry.

Antti studied to become a graduate engineer and enjoys art, music and discovering different cultures, with a side of golf.

Juha Virolainen ›


Tel: +358 401 626 216

Juha is a specialist in collaborative agreements, procurement processes and public procurements.

Through trial and error, Juha has realized that the key to effective construction projects is improving the possibilities of collaboration between parties, thus reducing the waste of resources and time.

In his spare time Juha likes to exercise and tinker with his summer cottage.

Aleksi Heinonen ›


Tel: +358 504 871 477

Aleksi oversees the streamlining of demanding projects and takt production consulting.

Aleksi is an international pioneer in single flow takt production, who encourages builders to push their standardized production to perfection. He got interested in construction through architecture and started working within the sector after participating in cruise ship renovations. Aleksi has studied product development and industrial economy and graduated from the Helsinki University of Technology in 2007 as a graduate engineer.

Aleksi spends his spare time with his family at their cottage, at sea, or with his children.

Eero Moilanen ›

Partner, Northern front, Oulu

Tel: +358 400 586 420

Eero works on both a personal- and organisational level, coaching clients in the different stages of the building process.

Eero is interested in the possibility of affecting global phenomena, such as global warming and the welfare of people. Locating inefficiencies and solving the related problems interests Eero greatly, as creating value for the client is crucial for him.

Eero seeks perspective for the challenges he encounters from nature. Hiking in the wilderness and travelling far and wide inspires him greatly.

Rami Tuokko ›


Tel: +358 415 447 187

Rami is responsible for the strategic- and procurement consulting, related to real estate and construction projects. He is capable in designing project systems, implementation models and procurement procedures, as well as leading projects.

Tarja Merikallio ›

Partner, D.Sc. (Tech.)

Tel: +358 50 434 8335

Tarja specializes in concrete construction, lean construction, and strategic management. 

Tarja has previously worked as a managing director at Concrete Association of Finland, a development manager at Lemminkäinen Infra Oy, and a researcher at the University of California Berkeley. She has also served on the board of the Finnish association of civil engineers (RIL).

Hannu Ratamäki ›


Tel: +358 40 081 8215

Hannu specializes in urban construction, project management, and lean construction. 

Hannu has an extensive experience in project management in different construction projects and in demanding urban environments. He enjoys having stimulating conversations and working hands-on on the construction site.

Sari Koskelo

Sari Koskelo ›

Project manager, M.Sc (Tech)

Tel: +358 404 194 941

Sari works in the Oulu team, and is responsible for the procurement, development and implementation of the projects from Visons clients in northern Finland. She is also the project director for the IPT project and has a big role in many different research and development projects within the construction industry.

Rauli Wallén ›

Project manager, M.Sc (Tech)

Tel: +358 505 360 234

Rauli is in charge of consulting everything from the procurement phase to takt production. He is interested in the development of the construction sector and takes great pleasure in solving the clients’ problems.

Nina Flinck ›

Project manager, Architect

Tel: +358 440 401 515

Nina provides consulting in procurements and projects and assessment of collaborative efforts, as well as IPT development projects. Reaching goals and working collaborative efforts motivate Nina greatly, and she has worked ceaselessly towards the development of the quality in construction.

Veera Muukkonen ›

Project manager, M.Sc (Tech)

Tel: +358 408 278 170

Veera is a part of Vison’s team in Oulu, where she does project consulting and helps in the organization of events. Veera graduated Oulu university in 2020. She is especially interested in lean and the development of processes.

Mikko Tuohino ›

Project manager, M.Sc (Tech)

Tel: +358 50 533 4990

Mikko is a procurement and project consulting expert at Vison. He has previously worked in the industry with both construction and design as well as research and development. Interest in learning has always guided his career path. Mikko is keen on developing the construction industry and especially the design part of it.

Samppa Roimela

Samppa Roimela ›

Consultant, M.Sc (Economics)

Tel: +358 445 048 951

Samppa’s tasks include assisting in projects and project consulting, preparing documents, as well as other supporting tasks. His expertise is centred around analytics and economics.

Maarit Taponen ›

Project assistant, BBA

Tel: +358 407 357 896

Maarit is responsible for human resource and economy management, as well as Visons office itself.

Karoliina Kumpulainen ›

Junior consultant, Bachelor of Laws

Tel: +358 40 741 3916

Karoliina’s tasks include assisting in Vison’s client projects, procurement planning and execution, and tasks related to Vison’s internal development.

Anni Jolkkonen ›

Communication assistant, BA (Journalism)

Tel: +358 40 480 4313

Anni coordinates Visons communicational efforts and maintains Visons social media platforms. She studies journalism at the University of Jyväskylä.

Eemeli Inkala›

Junior Constultant, B. Sc (Technology)

Tel: +358 44 282 6948

Eemeli’s tasks as a junior consultant include assisting in Vison’s client projects, procurement planning and execution, and tasks related to Vison’s internal development.

He studies currently in the Master’s Programm of Building Technology in Aalto University.

Visonin suomen- ja englanninkieliset Allianssiraportit 012020
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