PESI vs ULBI Comparison

Perma-Fix Environmental Services Inc is a provider of both nuclear services and the management of nuclear and mixed waste. The company operates through two segments: The treatment segment offers nuclear, low-level radioactive, Mixed, hazardous and non-hazardous waste treatment, processing and disposal services, and the Services segment which generates the majority of the revenue, provides on-site waste management services to commercial and government customers, technology-based services, construction, logistics, and transportation services among others.

Ultralife Corp provides products and services ranging from power solutions to communications and electronics systems to customers across the globe in the government and defense, medical, safety and security, energy, and industrial sectors. The company designs, manufactures, installs, and maintains power and communications systems including rechargeable and non-rechargeable batteries, charging systems, communications and electronics systems and accessories, and custom-engineered systems. The company's segments include Battery and Energy Products, and Communications Systems. It generates maximum revenue from the Battery and Energy Products segment, and from the U.S. The Battery & Energy Products segment includes Lithium 9-volt, cylindrical, and various other non-rechargeable batteries.