About Me.

I am an environmental engineer. Since 2004.

Pueng That
MSc ETH Environmental Engineering

Pueng That grew up in Aarau, where he attended the Alte Kantonsschule Aarau, among other schools. Directly after receiving his diploma in environmental engineering from the Swiss Federal Institute of Technology (ETH) in Zurich, he completed his civilian service with the Swiss Development Cooperation (SDC) in Nicaragua from 2004 to 2006. After his return to Switzerland, he started working in various engineering offices (Grolimund + Partner AG, Aegerter + Bosshardt AG, Entraco AG), until he became self-employed at THAT LLC in 2016.



ASTRA – Short portrait about Pueng That in the EP Schänzli project (german only)

PLAWARE – Engagement of Pueng That against Plastic Pollution in Cambodia



SIA – Swiss Association of Engineers and Architects

SGA – Swiss Society for Acoustics

SVU – Swiss Association of Environmental Experts


Since I became self-employed, I have continued to work on many interesting projects for municipalities, cantons, the federal government and private clients.


  • Canton Aargau
  • Community Ennetbaden
  • Community Obersiggenthal
  • Community Bad Zurzach
  • Kies Lenz AG
  • F. Hofmann-La Roche AG


  • Kühne + Nagel AG
  • Swiss Prime Site AG
  • Hausammann Lagerhäuser AG


  • Federal Road Office FEDRO