RoadRunner Recycling Inc. has raised $23.61 million in venture funding from undisclosed investors, according to PitchBook. The Pittsburgh company has raised $43.71 million over three rounds.

RoadRunner Recycling provides commercial waste management services intended to help businesses to generate significant savings on their recurring waste costs. The company’s commercial waste management services uses logistics technology that cuts fuel costs and carbon emissions by 80 percent and extracts the maximum value from recyclable materials, enabling other businesses earn money from their waste and recycling streams.

The business was founded by CEO Graham Rihn in 2014.