Swiss engineering group ABB has agreed to buy Atlanta-based Ventyx for more than $1 billion, it has been announced. The move will boost ABBÔÇÖs position in the management of energy networks, as well as strengthening its position in North America. Zurich-based ABB, which sells power equipment to utilities and oil & gas companies, is buying Ventyx from San Francisco-based private equity company Vista Equity Partners. Ventyx provides software to utilities and grid operators, enabling them to better match electricity generation with consumption.