PE Firm · Capital Allocator

Frontenac Company

Medium
Chicago, United States · Founded 1971 · AUM Not mentioned · Website
Lower Middle Market BuyoutCEO1ST (Executive-centric)ConsumerIndustrialServicesUnited States
Last verified
7/9/2026

Firm Overview

4
Portfolio tracked
3
Sectors
1
Regions
7/9/2026
Last verified

Frontenac is a Chicago-based private equity firm that specializes in lower middle market buyout transactions.

Founded in 1971 by Martin J. Koldyke, Frontenac is a long-standing private equity firm based in Chicago. The firm has built a leading franchise over five decades by working with over 350 owners of mid-sized businesses to navigate complex transitions involving liquidity, management enhancement, and growth planning.

The firm is known for its trademarked "CEO1ST" investment strategy. This approach focuses on partnering with established operating leaders to identify and acquire high-potential companies, subsequently building them into market leaders through transformational acquisitions and operational improvements. Under this model, the partner executive may serve as CEO, Chairman, or lead director depending on the needs of the business.

Frontenac specifically targets the lower middle market, focusing on buyout transactions. Its investment activities are concentrated within the consumer, industrial, and services sectors, leveraging its executive-centric methodology to drive value in these core industries.

Founded1971
HeadquartersChicago, United States
AUMNot mentioned
Target investmentLower middle market
Employees32
StrategiesLower Middle Market Buyout, CEO1ST (Executive-centric)
Sector focusConsumer, Industrial, Services
Geographic focusUnited States

Leadership

Martin J. Koldyke
Founder
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 HoldingsExited
H-E Parts InternationalCurrent
Portfolio GroupFinancial ServicesExited
SIGMACurrent

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

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This profile is based on publicly available information and may be incomplete or outdated.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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