Ameresco provides energy services, including infrastructure upgrades, energy security, asset sustainability and renewable energy solutions throughout North America and Europe. The company's sustainability services include capital and operational upgrades to a facility's energy infrastructure and the development, construction, ownership and operation of renewable energy plants. The company's principal service is energy projects, which entails the design, engineering and installation of, and assisting with the arranging of financing for an array of technologies and techniques to improve the usage of energy, and control the operation, of a building's energy- and water- consuming systems.

Babcock & Wilcox Enterprises is a technology-based provider of steam production from fossil and renewable sources. The company's segments are: Babcock & Wilcox, which focuses on the supply of, and aftermarket services for, steam-generating, environmental, and auxiliary equipment for power generation and other industrial applications; Volund & Other Renewable, which provides steam-generating systems, environmental and auxiliary equipment for the waste-to-energy and biomass power generation industries, and plant operations and maintenance services for its systems and equipment; and SPIG S.p.A. (SPIG), which provides custom-engineered cooling systems, services and aftermarket products.

Charles & Colvard manufactures, markets, and distributes Charles & Colvard Created Moissanite? (which the company refers to as moissanite or moissanite jewels) and finished jewelry featuring its proprietary moissanite gemstone for sale in the worldwide jewelry market. The company sells loose moissanite jewels and finished jewelry through various operating segments: its Online Channels segment, which comprises its charlesandcolvard.com website, e-commerce outlets, including marketplaces, drop-ship customers, and other e-commerce customers; and its Traditional segment, which consists of domestic and international distributors and retail customers.

CommScope Holding is a provider of infrastructure solutions for communication networks. The company's solutions and services for wired and wireless networks enable high-bandwidth data, video and voice applications. The company's operating segments are: CommScope Connectivity Solutions (CCS) and CommScope Mobility Solutions (CMS). The CCS segment is engaged in providing fiber optic and copper connectivity solutions for use in data centers and business enterprise, telecommunications, cable television and residential broadband networks. The CMS segment is engaged in providing infrastructure for wireless networks.

Darling Ingredients is a global developer and producer of natural ingredients from edible and inedible bio-nutrients. The company's segments include: Feed Ingredients, which includes the collection and processing of beef, poultry and pork animal by-products in North America and Europe into non-food grade oils and protein meals; Food Ingredients, which includes the purchase and processing of beef and pork bone chips, beef hides, pig skins, and fish skins into collagen in Europe, China, South America and North America; and Fuel Ingredients, which converts animal fats, recycled greases, used cooking oil, inedible corn oil, soybean oil, or other feedstocks into renewable diesel.

Harrow Health focuses on the development, production and sale of medications. The company mainly focuses on its ImprimisRx business, which is an ophthalmology pharmaceutical compounding business, and Park Compounding, Inc., which is a pharmacy focused primarily on health and wellness related, customizable pharmaceutical compounding. The company's other subsidiaries include: Eton Pharmaceuticals, Inc., a pharmaceutical company focused on developing and commercializing products utilizing the U.S. Food and Drug Administration 505(b)(2) regulatory pathway; and Surface Pharmaceuticals, Inc., a pharmaceutical company focused on development and commercialization of therapeutics for ocular surface diseases.

Matador Resources is an independent energy company engaged in the exploration, development, production and acquisition of oil and natural gas resources in the United States, with a focus on oil and natural gas shale and other unconventional plays. The company's operations are focused on the oil and liquids-rich portion of the Wolfcamp and Bone Spring plays in the Delaware Basin in Southeast New Mexico and West Texas. The company also operates in the Eagle Ford shale play in South Texas and the Haynesville shale and Cotton Valley plays in Northwest Louisiana. Also, the company conducts midstream operations, through its midstream joint venture, San Mateo Midstream, LLC together with San Mateo Midstream II, LLC.