GWH vs QRHC Comparison

ESS Tech Inc is a long-duration energy storage company specializing in iron flow battery technology. It develops and manufactures long-duration energy storage systems based on iron flow battery technology. The company's batteries use earth-abundant materials, including iron, salt, and water, and are designed for high cycle life and recyclability. It operates as a single business operating segment, which includes all activities related to the design, engineering, and manufacturing of the company's long duration energy storage products. The company's revenue is derived from the sale of its energy storage products and from service contracts.

Quest Resource Holding Corp is a national provider of waste and recycling services to customers from across multiple industry sectors that are typically larger, multi-location businesses. The company creates customer-specific programs and perform the related services for the collection, processing, recycling, disposal, and tracking of waste streams and recyclables. The company's services focus on the waste streams and recyclables from box, grocers, and other specialty retailers; automotive after-market operations such as automotive maintenance, quick lube, dealerships, and collision repair; transportation, logistics, and fleet operators; manufacturing and industrial facilities; multi-family and commercial properties; restaurant chains and food operations, etc.