Ault Alliance, Inc., through its subsidiaries, designs, develops, manufactures, and sells power system solutions for the defense/aerospace, industrial, automotive, telecommunications, healthcare, medical/biopharmaceutical, and textile industries in North America, Europe, the Middle East, and internationally. It offers switching and uninterruptible power supplies, power conversion and distribution equipment frequency converters, and transformer and power rectifiers; radio frequency and microwave filters, diplexers, multiplexers, detectors, switch filters, integrated assemblies, and detector logarithmic video amplifiers; and custom computer-based automated test equipment, turnkey systems, high precision calibration equipment, advance power systems, and project management and engineering solutions. The company also provides power conversion and display solutions; residential and commercial high-speed EV charging solutions; commercial loans, convertible notes, and revolving lines of credit; and virtual training courses through the LightSpeedVT platform, as well as creates various media, communications, and content, including web development, corporate communications, social media, and scripted and unscripted television.

In addition, it invests in public and private companies; and various commercial and residential real estate, including hospitality, multifamily, and industrial properties, as well as operates hotels and data centers. Further, the company engages in Bitcoin mining and other activities, as well as provides digital marketing services. It sells its products directly through its sales force, as well as through independent manufacturer representatives and distributors.

The company was formerly known as BitNile Holdings, Inc. and changed its name to Ault Alliance, Inc. in January 2023.