Main Street Capital announced a $15.6 million follow-on investment in its portfolio company UBM ParentCo, LLC, supporting the company’s latest strategic acquisition.
The investment, made alongside co-investor MSC Income Fund, Inc., consists of first lien, senior secured term debt and builds on Main Street’s initial investment in UBM in December 2025. The additional capital will enable UBM to acquire a national provider of asset-light palletized mail consolidation, logistics optimization, freight brokerage, and warehousing services for both B2B and B2C customers.
UBM specializes in marketing mail commingle services, helping large-scale mailers optimize postage, transportation, and delivery performance through its nationwide logistics network. The acquisition expands UBM’s operational capabilities and enhances its ability to deliver scalable, cost-efficient mail solutions.
The transaction follows UBM’s previous acquisition of Mystic Logistics in late 2025, which strengthened its freight brokerage and mail consolidation capabilities. Together, these moves position the company to further improve speed-to-market, operational visibility, and cost efficiency for clients across its platform.
Main Street’s follow-on investment reflects its strategy of providing flexible capital solutions to support portfolio company growth, including acquisitions and operational expansion within the lower middle market.
The deal underscores continued consolidation and investment activity within logistics and mail services, as companies seek to optimize supply chains and improve efficiency in large-scale distribution networks.
