Global Water Resources (GWRS) reported Q1 earnings of $0.02 per diluted share, down from $0.03 a year earlier.
One analyst polled by FactSet expected a breakeven.
Revenue for the quarter ended March 31 was $12.5 million, up from $11.6 million a year earlier.
Two analysts surveyed by FactSet expected $12 million.
Shares of Global Water Resources were up 1.8% in after-hours trading.