2014
$1.2M
from 5 investors over 5 rounds
PETROLERN raised $1.1M on February 22, 2023
Investors: U.S. Department of Energy
PETROLERN raised $900K on September 7, 2022
Investors: U.S. Department of Energy
PETROLERN raised undisclosed on May 24, 2022
Investors: U.S. Department of Energy
PETROLERN raised undisclosed on January 11, 2022
Investors: U.S. Department of Energy
PETROLERN raised $1.2M on April 1, 2021
Investors: U.S. Department of Energy