The Calgary-based company announced after markets closed Thursday that it will raise the dividend to 24.75 cents from 21.5 cents.
The new, higher dividend is payable March 31 to shareholders of record on March 10.
On the Toronto Stock Exchange, ATCO shares closed up 10 cents at $47.54.
Meanwhile, Canadian Utilities Ltd. (TSX:CU), a company in which ATCO is the controlling shareholder, announced a 10 per cent increase in its first-quarter dividend to 29.5 cents from 26.75 cents.
The new dividend is payable March 1 to shareholders of record on Feb. 5.
Canadian Utilities shares closed up 36 cents at $41.06.
With more than 9,000 employees and assets of approximately $18 billion, ATCO is a diversified global corporation involved in structures and logistics, pipelines and electricity generation and distribution among other businesses.