PE Firm · Capital Allocator

Frontenac Company

Medium
Chicago, United States · Founded 1971 · AUM Not specified · Website
BuyoutLower Middle MarketCEO1ST (Executive-led)ConsumerIndustrialServicesUnited States
Last verified
8/13/2026

Firm Overview

4
Portfolio tracked
3
Sectors
1
Regions
8/13/2026
Last verified

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

Frontenac is a Chicago-based private equity firm founded in 1971 by Martin J. Koldyke. The firm specializes in lower middle market buyout transactions, particularly focusing on the consumer, industrial, and services sectors. Over its 50-year history, the firm has worked with more than 350 owners of mid-sized businesses to assist with liquidity transitions, management enhancement, and growth planning.

The firm is known for its trademarked CEO1ST methodology, an executive-centric approach that partners with established operating leaders to identify and acquire market-leading companies. Through this strategy, Frontenac supports its executive partners in defining investment theses and executing transformational acquisitions. Depending on the needs of the portfolio company, these partners may serve as CEO, Chairman, or lead director post-acquisition.

Founded1971
HeadquartersChicago, United States
AUMNot specified
Target investmentLower middle market
Employees32
StrategiesBuyout, Lower Middle Market, CEO1ST (Executive-led)
Sector focusConsumer, Industrial, Services
Geographic focusUnited States

Leadership

Martin J. Koldyke
Founder
Founder of Frontenac Company in 1971.
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

Portfolio Web Readiness

Not yet assessed

The assessment covers whether AI crawlers and search engines can reach and parse the public site, page performance, transport and security hygiene, and discoverability.

Observational measurements of these companies' public websites only. Not a rating of the companies, their performance, their management, or their investment merit. Not investment advice. Request a correction or removal via Submit Update.

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.

More PE firms in Consumer

Browse the full PE firms directory.