Contura Energy is a coal supplier with affiliate mining operations across major coal basins in Pennsylvania, Virginia and West Virginia. The company's portfolio of mining operations consists of underground mines, surface mines and coal preparation plants. In the Central Appalachia (CAAP) coal basin, the company mainly produces low-ash metallurgical coal, which are shipped to domestic and international coke and steel producers. In the CAPP coal basin, the company also produces low sulfur, high British thermal unit (BTU) thermal coal for electricity generation, as well as specialty coal for industrial customers. In the Northern Appalachia coal basin, the company produces primarily high-BTU thermal coal.

Frequency Electronics is engaged in precision time and frequency generation technology. The company's segments are: FEI-NY and FEI-Zyfer. The FEI-NY segment includes the operations of the company's wholly-owned subsidiaries, FEI-Asia and FEI-Elcom. FEI-Asia functions as a manufacturing facility for FEI-NY and FEI-Zyfer. FEI-Elcom provides design and technical support for the FEI-NY segment's business. The FEI-Zyfer segment designs and manufactures products which incorporate global positioning systems technologies and clocks designed and manufactured at FEI-NY. FEI-Zyfer sells its products to both commercial and U.S. Government customers and collaborates with FEI-NY on joint product development activities.

Lexicon Pharmaceuticals is a biopharmaceutical company. The company is commercializing XERMELO? (telotristat ethyl), an orally-delivered small molecule drug for the treatment of carcinoid syndrome diarrhea in combination with somatostatin analog (SSA) therapy in adults inadequately controlled by SSA therapy. The company is developing Zynquista? (sotagliflozin), an orally-delivered small molecule drug candidate, as a treatment for type 1 2 diabetes. The company is also developing sotagliflozin as a treatment for type 2 diabetes, heart failure and chronic kidney disease. The company is developing LX9211, an orally-delivered small molecule drug candidate, as a treatment for neuropathic pain.

Marchex is a call analytics company that helps businesses connect, drive, measure and convert callers into customers. The company's primary product offerings include: Marchex Call Analytics, which is an analytics platform for enterprises; Marchex Display and Video Analytics, which is a product for marketers that buy digital display advertising; Marchex Site Analytics, which is a product for marketers that can drive phone calls from websites; Marchex Social Analytics, which is a product for marketers that buy social media advertising; Marchex Call Marketplace, which is a mobile advertising network for businesses; and Local Leads, which is an advertising solution for small business resellers.

Pennsylvania Real Estate Investment Trust is a real estate investment trust, which has a focus on retail shopping malls located in the eastern half of the U. S., primarily in the Mid-Atlantic region. The company is engaged in the ownership, management, leasing, acquisition, redevelopment, and disposition of shopping malls. In general, the company's malls include tenants that are national or regional department stores, large format retailers or other anchors and a mix of national, regional and local in-line stores providing apparel (women's, family, teen, children's, men's), shoes, eyewear, cards and gifts, jewelry, sporting goods, home furnishings and personal care items, among other things.

Sunrun is engaged in the design, development, installation, sale, ownership, and maintenance of residential solar energy systems. The company's main solar service offerings are provided through its lease and power purchase agreements, which it refers to as its Customer Agreements. While homeowners have the option to purchase a solar energy system outright from the company, a majority of its customers choose to buy solar as a service through its Customer Agreements. With its solar service offerings, the company installs solar energy systems on its customers' homes and provides them the solar power produced by those systems. In addition, the company monitors, maintains and insures the system during the term of the contract.

UPWORK operates an online talent marketplace, which enables businesses to find and work with independent personnel. Freelancers on the company's platform include independent personnel and agencies of varying sizes. The company's marketplace offerings include Upwork Basic, Upwork Plus, Upwork Business, Upwork Enterprise, and Upwork Payroll. The company,'s Upwork Basic offering provides clients with access to freelance talent with verified work history on its platform and client feedback, the ability to match with the freelancers, and built-in collaboration features. The company's Upwork Plus provides all the product features of Upwork Basic, as well as access to personalized assistance, whether strategic or job-specific.