Current Investments

Advanced Drainage Systems, Inc.

Advanced Drainage Systems, Inc. (ADS) is the world's largest producer of corrugated high density polyethylene (HDPE) pipe used for agriculture, construction and retention, and drainage. The company has a global network of 53 domestic and international manufacturing plants and more than 24 distribution centers.
More

Arizona Chemical

Arizona Chemical is the world's leading producer and refiner of pine chemicals. Its products are environmentally friendly and are used in thousands of everyday products including fragrances, personal care items, plastics, household cleaners, inks, paints, and rubber products.
More

Fairmount Minerals

Fairmount Minerals is one of the largest producers of industrial sand in the United States. Fairmount Minerals services a wide variety of markets and industries, including oil and gas, glass, foundry, abrasive, filtration, pool filter, golf courses, artificial sports fields, and play sand.
More

FiberMark

FiberMark is a global marketer and world-class manufacturer of premium and innovative covering materials for a variety of applications including office products, publishing, luxury packaging, technical/industrial and graphic design.
More

General Chemical

General Chemical is a leading North American manufacturer of a broad line of organic and inorganic chemicals for a wide variety of industries and applications including water treatment, food/beverage, pharmaceutical, pulp and paper, industrial processing, and agriculture.
More

Global Tel*Link

Global Tel*Link is a leading provider of telecommunications and technology services to the United States corrections industry. Global Tel*Link offers innovative product solutions including offender management systems, case management systems, and inmate phone systems.
More

GT Technologies

GT Technologies is an international leader in the engineering and manufacturing of performance-critical valvetrain components and systems for gasoline and diesel internal combustion engines.
More

Healthy Directions, LLC

Healthy Directions is a leading direct marketer of branded nutritional supplements and health newsletters.
More

HHI Group Holdings

HHI is the largest North American manufacturer of highly engineered, safety-critical forged components for automotive customers, principally in the light vehicle market, and a leading manufacturer of complex, highly engineered powdered metal powertrain components and wheel bearings.
More

Lakeside Energy, LLC

Lakeside is a Chicago-based firm committed to providing capital to create profitable growth by acquiring, financing, owning and operating energy companies and assets in North America.
More

Liberty Tire Recycling

Liberty Tire Recycling is the premier provider of tire recycling services in North America. By recycling more than 140 million tires annually, Liberty Tire reclaims about 1.5 billion pounds of rubber for innovative, eco-friendly products.
More

Metaldyne, Inc.

Metaldyne is a leading global manufacturer of highly engineered metal-based components for light vehicle engine, transmission and driveline applications.
More

PDM Bridge, LLC

PDM Bridge is a leader in the bridge fabrication industry with extensive experience in complex bridge structures.
More

Potbelly Sandwich Works

Potbelly Sandwich Works is a unique, experiential, sandwich-focused fast casual restaurant concept with locations in more than 16 states and international locations in the Middle East.
More

Presidio Inc.

Presidio is the leading provider of professional and managed services for advanced IT solutions. Presidio addresses its clients’ complete information technology lifecycle – enabling clients to plan, design, implement, test and operate their technology investments.
More

Robertson Fuel Systems

Robertson Fuel Systems is the world leader in fuel containment and ballistic tolerance, having designed, manufactured, and fielded over 4,500 crashworthy, ballistically self-sealing primary and auxiliary fuel systems for rotary and fixed winged aircraft and ground combat vehicles.
More

SpecialtyCare

Specialty Care is the largest and most experienced provider of outsourced perfusion, clinical technician, minimally invasive surgical support services and other specialty clinical services to hospitals and other healthcare providers in the United States.
More

Unifrax Corporation

Unifrax is the premier global provider of high-temperature insulation products providing innovative heat management solutions and energy savings for a broad range of industries.
More

Unison Site Management

Unison Site Management is the leading independent cell site company in the nation. Unison is a specialized investment management company that purchases wireless antennae leases and cell ground tower leases from cell site owners.
More

United Distribution Group Inc.

The United Distribution Group is a leading provider of industrial supplies and services, from underground mining products to gasket and sealing products, to end users in the energy and natural resources markets.
More