A massive deal several months in the making has closed with Tether saying Wednesday it led a Series C round worth up to $1.4 billion in the German tech startup Neura Robotics.

"By supporting the raise of up to $1.4 billion from a diversified group of strategic and financial investors into Neura Robotics, the group takes a decisive step by backing a company redefining how machines think, move, interact, and transact with the physical world," Tether said in a statement.

The declaration comes several months after revelations surfaced that the stablecoin issuer was considering a major investment in the robotics firm last year.

Neura is developing a portfolio that includes robotic humanoids, precision arms, autonomous mobile robots, and service robots, according to Tether's statement. The robots will be built to "operate across every environment where human-machine collaboration creates real-world value."

Tether has become a prolific venture capital investor in recent years thanks to its highly profitable stablecoin business as the issuer of USDT. The firm keeps its stablecoin reserves in yield-bearing investments like U.S. Treasurys.