When was Audax Group founded?

Public sources give 1999 as the year Audax Group was founded.

Which sectors does Audax Group invest in?

Audax Group lists Business Services, Financial Services, Healthcare, Industrial Services and Software + Technology among its focus areas.

How many portfolio companies does Audax Group have?

PE Firm Index tracks 20 Audax Group portfolio companies from the firm's public portfolio page, as of 2026-11-06. The firm's own count may differ, for example where exited companies are listed.

What deals has Audax Group done recently?

The most recent deal on record here is: Audax acquired Luminator Technology Group. This page lists 2 deals, each with its public source.

Who leads Audax Group?

Public sources name Geoffrey Rehnert (Executive Chairman), Young Lee (Partner & Co-President) and Keith Palumbo (Partner & Co-President) among Audax Group's leadership.

Which firms are similar to Audax Group?

By overlap in portfolio sectors in this index: Cinven, Castik Capital and Charlesbank Capital Partners.

PE Firm · Capital Allocator

Audax Group

Medium

Not on record · Founded 1999 · Website

Buy & BuildFlagshipOriginsStrategic CapitalControl InvestmentsBusiness ServicesFinancial ServicesHealthcareIndustrial ServicesSoftware + Technology

Last verified

11/5/2026

Firm Overview

Portfolio tracked

Sectors

Regions

11/5/2026

Last verified

Audax Private Equity is a middle market strategic equity partner that uses a Buy-and-Build approach and the Audax Value Agenda framework. The firm pursues control investments in North American companies with EBITDA between $20 million and $100 million and enterprise values between $200 million and $1.0 billion.

Audax Private Equity manages three strategies focused on accelerated value creation and sustainable growth. The firm utilizes a holistic framework called the Audax Value Agenda, which is supported by a Strategic Resources Group of over 60 functional specialists and consultants who work to instill operational excellence and safeguard against risk.

The firm employs over 300 people, including more than 100 investment professionals. Since its inception, the firm has invested in more than 180 middle market companies, leveraging deep domain expertise and a systematic operating model to help portfolio companies scale and execute growth strategies.

Founded1999

StrategiesBuy & Build, Flagship, Origins, Strategic Capital, Control Investments

Sector focusBusiness Services, Financial Services, Healthcare, Industrial Services, Software + Technology

Leadership

Geoffrey Rehnert

Executive Chairman

Young Lee

Partner & Co-President

Keith Palumbo

Partner & Co-President

Adam Abramson

Partner

Donald Bramley

Partner

Timothy Mack

Partner

John "Jay" Mitchell

Partner

Joseph Rogers, Jr.

Partner

David Wong

Partner

William Allen

Senior Managing Director

Gregory Smith

Senior Managing Director

Pamela Martin

Senior Managing Director

Daniel Weintraub

Chief Legal Officer, Co-Chief Operating Officer, Audax Group

Daniel Green

Managing Director & Head, ASC Europe

Kumber Husain

Managing Director & Co-Head, ASC

Ralph Yang

Managing Director & Co-Head, ASC

Robert Connors

Managing Director, Head of Operations

Iveshu Bhatia

Managing Director

Matthew Dewey

Managing Director

Jason Ellis

Managing Director

Deals on record

2 on record in the index

Platform investment

Audax acquired Luminator Technology Group

Date not stated

Source: audaxprivateequity.com

Platform investment

Audax Group acquired Luminator Technology

Date not stated

Source: audaxprivateequity.com

Deals are listed only where a public source names both sides. Submit a correction.

Portfolio on record

Portfolio by sector

Unclassified18 of 20
Industrials2 of 20

20 portfolio companies on record in the index, grouped by sector hub.

Current and exited

Current: 20 of 20Exited: 0 of 20

Portfolio size among all firms

20 companies on record, more than 37% of the 405 firms in the index.

0885 companies (log scale)

Portfolio Companies

Company	Sector	Status	Website
AKAM	Not on record	Current	Visit ↗
AMAROK	Not on record	Current	Not on record
Amtivo	Not on record	Current	Visit ↗
Azurity Pharmaceuticals	Not on record	Current	Visit ↗
Beacon Mobility	Not on record	Current	Visit ↗
DMI Solutions	Not on record	Current	Visit ↗
Doeren Mayhew	Not on record	Current	Visit ↗
ElevatePFS	Not on record	Current	Visit ↗
Everservice	Not on record	Current	Not on record
FDH Aero	Not on record	Current	Visit ↗
Fortis	Not on record	Current	Visit ↗
Keystone	Not on record	Current	Visit ↗
Krayden	Not on record	Current	Visit ↗
Lanter Delivery Systems	Not on record	Current	Visit ↗
Oakbridge Insurance	Not on record	Current	Visit ↗
Resonant Clinical Solutions	Not on record	Current	Visit ↗
Strickland Brothers	Not on record	Current	Visit ↗
TCP Analytical	Not on record	Current	Visit ↗
The Gardner School	Not on record	Current	Visit ↗
Total PowerGen Solutions	Not on record	Current	Visit ↗

Source: https://audaxprivateequity.com/portfolio

Firms that also back Audax Group's companies

Co-investor web

Line width shows shared portfolio companies on record in the index. Top 4 co-investors shown.

Lovell Minnick Partners2 shared companies
AKAM Fortis
Bain Capital1 shared company
FDH Aero
Charterhouse Capital Partners1 shared company
Amtivo
Harvest Partners1 shared company
Fortis

Questions about Audax Group

When was Audax Group founded?: Public sources give 1999 as the year Audax Group was founded.
Which sectors does Audax Group invest in?: Audax Group lists Business Services, Financial Services, Healthcare, Industrial Services and Software + Technology among its focus areas.
How many portfolio companies does Audax Group have?: PE Firm Index tracks 20 Audax Group portfolio companies from the firm's public portfolio page, as of 2026-11-06. The firm's own count may differ, for example where exited companies are listed.
What deals has Audax Group done recently?: The most recent deal on record here is: Audax acquired Luminator Technology Group. This page lists 2 deals, each with its public source.
Who leads Audax Group?: Public sources name Geoffrey Rehnert (Executive Chairman), Young Lee (Partner & Co-President) and Keith Palumbo (Partner & Co-President) among Audax Group's leadership.
Which firms are similar to Audax Group?: By overlap in portfolio sectors in this index: Cinven, Castik Capital and Charlesbank Capital Partners.

Sources for this profile, updated 2026-11-06

Firm website
Deal reports (2), linked beside each deal

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

Firms similar to Audax Group

Cinven

Both hold Financial Services and Business Services companies; 48 tracked portfolio companies.

Castik Capital

Both hold Business Services and B2B Software companies; 18 tracked portfolio companies.

Charlesbank Capital Partners

Both hold Financial Services and Business Services companies; 34 tracked portfolio companies.

Inflexion Private Equity

Both hold Financial Services and Business Services companies; 16 tracked portfolio companies.

Chosen from this index by overlap in portfolio sectors, then by portfolio size. Not a ranking or a recommendation.

Firm Intelligence

Portfolio tracked20
SectorsBusiness Services, Financial Services, Healthcare, Industrial Services, Software + Technology
RegionsNot on record
AUMNot on record

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