Gladstone Investment Corporation

Nielsen-Kellerman designs and manufactures rugged, waterproof environmental and sports performance instruments for active lifestyles and technical applications. The product lineup includes weather and environmental meters, electronics for rowing and paddling, and rugged megaphones and PA systems, as well as weather stations, ballistics instruments and other environmental measurement tools. These instruments serve firefighting, agriculture, construction, ventilation and air conditioning markets, and are used by outdoor enthusiasts and professionals who require reliable data and performance in challenging conditions.

Pyrotek Special Effects Inc. specializes in the design and execution of innovative special effects for live productions, including stadium tours, award shows, festivals, and television broadcasts in North America and abroad. Based in Markham, Canada, with additional offices in Toronto and Las Vegas, the company offers a diverse range of products such as controllable flame devices, fire walls, programmable flame units, and colored flame effects. They also provide a variety of pyro effects and atmospheric enhancements, including confetti cannons, CO2 effects, and low-lying fog. Pyrotek is dedicated to ensuring the safe and professional execution of these effects, employing licensed technicians to work closely with artists during performances to create memorable experiences.

Mason West specializes in designing and supplying engineered seismic restraint and vibration isolation solutions for mechanical, electrical, and plumbing systems, as well as fire protection. The company serves clients in California, Nevada, and Hawaii, combining engineering expertise with code-compliant components and collaborative project support to improve structural safety, reliability, and overall performance of MEP and related systems.

Mason West specializes in designing and supplying engineered seismic restraint and vibration isolation solutions for mechanical, electrical, and plumbing systems, as well as fire protection. The company serves clients in California, Nevada, and Hawaii, combining engineering expertise with code-compliant components and collaborative project support to improve structural safety, reliability, and overall performance of MEP and related systems.

AJ Engineering, LLC is an engineering firm based in Placentia, California, specializing in seismic design services for mechanical, electrical, plumbing, and fire protection (MEPF) equipment and their associated distribution systems. Established in 2020, the company focuses on the seismic design of noise and vibration control within architectural systems and MEPF equipment in buildings across California. Its offerings include equipment anchorage design, seismic brace design, riser supports, thermal pipe design and analysis, and steel design. AJ Engineering serves a diverse clientele, including Fortune 500 contractors, developers, building owners, manufacturers, industrial clients, and various engineering firms.

The Maids is a residential cleaning company operating in the United States and Canada. Founded in 1979, it offers comprehensive cleaning services, including window and carpet cleaning, oven and refrigerator cleaning, kitchen cabinet cleaning, wood and tile floor cleaning, wall and chandelier cleaning, and garage cleaning to remove contaminants and clutter, as well as seasonal deep cleaning. The company emphasizes ergonomic cleaning processes and safe products, supported by software and a web-based training and communications platform for its franchise network. It maintains a franchise model with more than 140 franchisees serving over 90 major U.S. and Canadian cities, with offices across more than 40 states and three Canadian provinces, and is based in Omaha, Nebraska.

ImageWorks Display and Marketing Group, Inc. is a specialized manufacturer of point-of-purchase displays based in Winston-Salem, North Carolina. Founded in 1996, the company focuses on the design, engineering, and production of custom displays, signage, and in-store tobacco displays, along with related accessories. It caters to retailers across the United States and internationally, providing products that enhance customer engagement in retail environments. ImageWorks Display also offers its products online, expanding its reach to a broader market.

GI Plastek specializes in large to medium, high aesthetic complex molded products that provide added value in a one-stop-shop environment. Core capabilities include standard injection molding, structural foam molding, gas assist and gas counter pressure molding, finishing, painting, EMI shielding, assembly, and graphics.

Buy Auto Parts is a distributor specializing in aftermarket auto parts and accessories for a wide range of vehicles, including cars and trucks. The company provides an extensive selection of original equipment and aftermarket parts, ensuring customers can find the components they need at competitive prices. In addition to offering high-quality auto parts, Buy Auto Parts also provides expert advice and a variety of online resources, including how-to guides, to assist customers in making informed purchasing decisions. With multiple warehouses located throughout the country, the company is well-positioned to deliver parts efficiently while guaranteeing that all products come with a full warranty.