Frontenac Company

Frontenac Company

Frontenac Company was established in 1971 by Martin J. Koldyke. The firm originated from Koldyke's venture-capital activity and evolved into a multi-family office that aggregates capital from several entrepreneurial families. Frontenac pursues control buyouts and growth investments in the lower middle market. It targets companies with $5 million to $40 million of EBITDA and deploys equity checks between $50 million and $150 million. Asset classes include private equity, secondaries, and special situations. The firm maintains three industry teams covering consumer, industrials, and services. Confirmed holdings have included Portfolio Group, an outsourced financial-services provider to auto dealers that Frontenac acquired in 2012 and later sold to Capital Z Partners. Geographic focus remains North America. CEO1ST partners supply pre- and post-acquisition operating input while the Portfolio Resources Group implements functional playbooks. The firm employs an investment committee that includes Walter Florence, Ron Kuehl, Michael Langdon, and Elizabeth Williamson. Julie Bender serves as CFO and Chief Compliance Officer. Frontenac maintains its sole office in Chicago. No dated operational events from the past 24 months appear in public records. Frontenac's structure centers on a hybrid model that embeds former operators as CEO1ST partners who can assume board or interim executive roles. This arrangement creates direct operating leverage inside portfolio companies rather than relying solely on external managers or fund-of-funds commitments.