Eos Energy Enterprises (EOSE) reported a Q1 adjusted loss late Tuesday of $0.17 per diluted share, narrowing from a loss of $0.23 a year earlier.
Four analysts polled by FactSet expected a loss of $0.20.
Revenue in the three months ended March 31 rose to $10.5 million from $6.6 million a year earlier.
Analysts surveyed by FactSet expected $11 million.
The company continues to expect 2025 revenue of $150 million to $190 million. Analysts polled by FactSet expect $167.3 million.
Eos Energy shares were up 14% in recent premarket activity Wednesday.