Castanea Partners has led an investment in 4moms, a manufacturer of high-tech baby products. Bain Capital Ventures also participated in the round, said to total $41 million. Founded in 2006, 4moms develops robotics-inspired items like baby swings and strollers that are sold in more than 2,000 retail locations in the U.S. and distributed in 52 countries. The company has raised more than $80 million in equity, including a $20 million round in 2012 led by Bain Capital Ventures. The fresh capital will go towards new product development. Castanea managing partner Robert Smith will join the company’s Board.