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Our Investments Up Close

Through CenterOak and throughout our collective careers as investors, our team has completed over 150 transactions representing more than $8 billion in transaction value within the industrial growth, consumer and business services industries. Read on to learn more about our current and past investments.

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BlackHawk Industrial

A top 30 distributor in the North American industrial supply market.
In Industrial Growth / Realized

Cascade Windows

A leading manufacturer of vinyl windows and doors.
In Industrial Growth / Realized


An operator and franchisor of the Cheddar’s casual dining concepts.
In Consumer / Realized


Provider of auto collision repair services in the Central and Northeast U.S.
In Business Services / Realized

Ennis-Flint & Eberle Design

The leading global designer and producer of traffic safety solutions.
In Industrial Growth / Realized

Entomo Brands

Provides pest, recurring termite and mosquito control services.
In Active / Consumer

FullSpeed Automotive

Fourth largest quick lube operator in the U.S.
In Consumer / Realized

Guardian Access Solutions

Provider of maintenance, repair, and installation of exterior access control equipment
In Active / Business Services

HK Solutions Group

Leading regional provider of infrastructure maintenance services.
In Active / Business Services

HomeTown Services

Provider of essential residential repair and maintenance services
In Active / Consumer

Lone Star Overnight

A regional express courier providing overnight business-to-business parcel and document delivery services.
In Business Services / Realized

ORS Nasco

A leading wholesale distributor of industrial supplies.
In Business Services / Realized

Rennhack Marketing Services

A leading national provider of marketing services for financial institutions.
In Business Services / Realized

Service Champions

Provider of essential residential HVAC and plumbing maintenance and repair services.
In Consumer / Realized

Shamrock Environmental

Leading provider of essential environmental services.
In Active / Business Services

Southern Tide

Lifestyle apparel and accessories brand for men, women and children.
In Consumer / Realized

Strategic Equipment & Supply Corp

A provider of foodservice equipment, supplies and services.
In Industrial Growth / Realized


Leading global specialty distributor of surface enhancement products.
In Industrial Growth / Realized

Tri-Northern Security Distribution

A leading wholesale security distributor.
In Industrial Growth / Realized


Automotive glass and claims management services company.
In Business Services / Realized

Turf Masters

Provider of exterior residential services including lawn care services and exterior pest programs.
In Active / Consumer


Leading supplier of specialty colorants and functional ingredients.
In Industrial Growth / Realized

Wetzel’s Pretzels

A leading owner and franchisor of specialty snack stores.
In Consumer / Realized