Audax Private Equity has acquired Rensa Filtration from The Edgewater Funds and The Duchossois Group

Rensa Filtration

Founded in 2017 by Chief Executive Officer Brandon Ost and private investment partners, Rensa Filtration manufactures best-in-class air filtration solutions that keep environments safe and industries thriving. Rensa is a family of companies dedicated to air filtration. The company has a manufacturing and distribution footprint that includes facilities in Maryland, Illinois, Michigan and Texas, and the company’s products are marketed across a range of brands including Rensa, Custom Filter, Viskon-Aire, Permatron, D Mark and Air Filters, Inc. For more information, please visit

The Deal

Since its founding in 2017, Rensa has quickly scaled to become a leading player in the air filtration market. Audax Group was attracted to the company due to its mission-critical, diversified product offering, high-growth, resilient addressable market and proven buy-and-build strategy.

Our Perspective

Bobby Reifman, Managing Director in Lincoln’s Industrials Group who leads filtration, commented, “The filtration industry continues to see strong investor interest, particularly within air filtration applications, due to the proven market resiliency, critical nature of products and diversity of high-growth end market applications. We believe Rensa has significant runway for growth under Audax’s ownership, through a combination of organic growth initiatives as well as a proven buy-and-build strategy within the highly fragmented air filtration market.”

Audax Private Equity

Audax Group is a leading alternative investment manager with offices in Boston, New York and San Francisco. Since its founding in 1999, the firm has raised over $30 billion in capital across its Private Equity and Private Debt businesses. Audax Private Equity has invested over $9 billion in 150 platforms and over 1,100 add-on companies. Through its disciplined buy and build approach, Audax Private Equity seeks to help platform companies execute add-on acquisitions that fuel revenue growth, optimize operations and significantly increase equity value. With more than 300 employees, Audax is a leading capital partner for North American middle market companies. For more information, visit the Audax Private Equity website:

Audax Group Rensa Filtration Group The Edgewater Funds 2022 Connect with a Senior Team Member

Meet our Senior Team

Any information or testimonials contained in this post may not be representative of the experience of other clients and is no guarantee of future performance or success.