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Frontenac Company

Medium
Chicago, United States · Founded 1971 · AUM Not specified · Website
Lower Middle Market BuyoutCEO1ST (Executive-centric)Growth PlanningTransformational AcquisitionsConsumerIndustrialServicesFinancial ServicesUnited States
Last verified
10/8/2026

Firm Overview

4
Portfolio tracked
4
Sectors
1
Regions
10/8/2026
Last verified

Frontenac is a Chicago-based private equity firm that specializes in lower middle market buyout transactions within the consumer, industrial, and services sectors.

Founded in 1971, Frontenac is a private equity firm headquartered in Chicago, Illinois. The firm has a long history of working with mid-sized business owners to address complex transitions involving liquidity, management enhancement, and growth planning. Over its 50-year history, the firm has partnered with more than 350 business owners.

Frontenac utilizes a trademarked investment methodology known as CEO1ST. This executive-centric approach identifies and partners with seasoned operating leaders to acquire and build market-leading companies. The strategy involves defining a thesis, sourcing opportunities, and executing transformational acquisitions where the partner executive may serve as CEO, Chairman, or lead director.

The firm specifically targets the lower middle market, focusing on buyout transactions. Its investment activities are concentrated in the consumer, industrial, and services industries, aiming for operational excellence and market leadership in its portfolio companies.

Founded1971
HeadquartersChicago, United States
AUMNot specified
Target investmentLower middle market buyout transactions
Employees32
StrategiesLower Middle Market Buyout, CEO1ST (Executive-centric), Growth Planning, Transformational Acquisitions
Sector focusConsumer, Industrial, Services, Financial Services
Geographic focusUnited States

Leadership

Martin J. Koldyke
Founder
Founder of Frontenac Company.
Walter Florence
Senior Team Member
Ron Kuehl
Senior Team Member
Michael Langdon
Senior Team Member
Joe Rondinelli
Senior Team Member
Elizabeth Williamson
Senior Team Member

Portfolio Companies

CompanySectorStatusWebsite
GW Holdings—Exited—
H-E Parts International—Current—
Portfolio GroupFinancial ServicesExited—
SIGMA—Current—

Source: http://www.frontenac.com/portfolio

Portfolio Web Readiness

Not yet assessed

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Sources

This profile is based on publicly available information and may be incomplete or outdated. PE Firm Index is not affiliated with Frontenac Company and does not provide investment advice.

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