Aspen Aerogels is an aerogel technology company that designs, develops and manufactures aerogel insulation used primarily in the energy infrastructure and building materials markets. The company also conducts research and development related to aerogel technology. The company's product lines include: Pyrogel XT-E, which is designed for use in refineries and petrochemical facilities; Pyrogel XTF, which is designed to provide protection against fire; Cryogel Z, which is designed for sub-ambient and cryogenic applications in the energy infrastructure market; and Spaceloft Subsea, which is designed for use in pipe-in-pipe applications in offshore oil production.

BRT Apartments is an internally managed real estate investment trust that is primarily focused on the ownership, operation and development of multi-family properties. Most of the company's properties are located in the Southeast U.S. and Texas. Generally, the company's multi-family properties are garden apartment, mid-rise or town home style properties that provide residents with amenities, such as a clubhouse, swimming pool, laundry facilities and cable television access. In addition to its multi-family properties, the company owns other real estate assets including undeveloped land, cooperative apartment units and a leasehold position at a commercial property.

Guaranty Bancshares is a bank holding company. Through its subsidiary, the company provides a variety of loans, including commercial lines of credit, working capital loans, commercial real estate-backed loans, term loans, equipment financing, acquisition, expansion and development loans, borrowing base loans, real estate construction loans, homebuilder loans, letters of credit and other loan products. The company provides a range of deposit products and services, including a variety of checking and savings accounts, certificates of deposit, money market accounts, debit cards, remote deposit capture, online banking, mobile banking, e-Statements, bank-by-mail and direct deposit services.

MidWestOne Financial Group is a bank holding company. Through its subsidiary, MidWestOne Bank (the Bank), the company is focused on delivering relationship-based business and personal banking products and services. The Bank provides commercial loans, real estate loans, agricultural loans, credit card loans, and consumer loans. The Bank also provides deposit products including demand and interest checking accounts, savings accounts, money market accounts, and time deposits. Complementary to its loan and deposit products, the Bank also provides products and services including treasury management, Zelle, online and mobile banking, debit cards, automated teller machine, and safe deposit boxes.

Spok Holdings provides a suite of unified clinical communication and collaboration solutions that include call center operations, clinical alerting and notifications, one-way and two-way wireless messaging services, mobile communications and public safety solutions. The company also develops, sells and supports enterprise-wide systems for hospitals and other organizations needing to automate, centralize and standardize mission clinical communications. These solutions are used for contact centers, clinical alerting and notification, mobile communications and messaging and for public safety notifications.