Acorn Energy is a NASDAQ

NASDAQ

The NASDAQ Stock Market, also known as the NASDAQ, is an American stock exchange. "NASDAQ" originally stood for "National Association of Securities Dealers Automated Quotations". It is the second-largest stock exchange by market capitalization in the world, after the New York Stock Exchange. As of...

-listed conglomerate investing in electricity generation and security

Major subsidiaries

DSIT, based in Israel, makes systems of sonar arrays that detect underwater activity; these are marketed by Acorn Energy for the protection of energy infrastructure facilities near water.

GridSense makes hardware for monitoring transformer performance for smart-grid applications.

US Seismic Systems manufactures fibre-optic transducers for monitoring oil and gas fields during production.