PETRA PRESS
Zilper Trenchless, Petra, and now Phoenix Boring in the news
December 9, 2022
Petra CEO Kim Abrams on creating new tunneling technology
September 15, 2022
Petra Acquires Trenchless Tunneling Company Zilper to Enable Utility Undergrounding Through any Nightmare Geology
September 15, 2022
Petra Acquires Zilper Trenchless
December 9, 2021
Raise and deliver.
December 9, 2021
Petra emerges from camouflage and has raised $ 30 million for the Swifty tunnel boring robot – TechCrunch
December 9, 2021
Petra Launches Utilities Replacement Robot
December 9, 2021
A startup that's developed a robot that bores tunnels with heat raised a $30M Series A
December 9, 2021
This New Tech Cuts Through Rock Without Grinding Into It
December 9, 2021
New tunnelling method bores through the hardest of rocks
December 9, 2021