UpperStage.Capital, a growth equity firm, completed the acquisition of Talius, a cleantech building materials company. Financial terms were not disclosed. “After 20 years in cleantech and impact venture capital, developing a new hands-on investment model with our 8-person team has been a rewarding challenge. Talius represents a perfect example of our investment thesis: A bootstrapped company with world-class products, ready to compete globally, and seeking new leadership to rocket to the next level of success," Keith Gillard, UpperStage CEO.