ClearSign Technologies Corporation reported its financial results for the second quarter of 2025, revealing a revenue of $133,000, a significant increase from $45,000 in the same quarter of 2024. However, for the first half of 2025, revenues decreased to $534,000 compared to $1.147 million in the prior year, reflecting a 53.4% decline. The company attributed the quarterly revenue growth primarily to spare parts orders and a boiler burner order from repeat customers, while the decline in the six-month period was linked to lower sales from its process burner product line.
The company’s net loss for the second quarter of 2025 was $1.68 million, a slight improvement from a loss of $1.87 million in the same quarter of 2024. For the first half of 2025, the net loss increased to $3.76 million from $2.98 million in the previous year. Operating expenses decreased by 13.1% in the second quarter, totaling $1.89 million, driven by reduced research and development costs. However, general and administrative expenses rose by 14.7% for the first half of the year, primarily due to increased legal fees associated with ongoing regulatory inquiries and special committee activities.
In terms of operational metrics, ClearSign reported a total of 17 full-time employees as of June 30, 2025. The company continues to focus on its core technology, ClearSign Core™, which aims to enhance combustion systems' performance and reduce emissions. The company has also been actively pursuing government grants, receiving $43,000 in the second quarter from the Department of Energy for its hydrogen burner development project, although this was a decrease from $168,000 in the same quarter of 2024.
Looking ahead, ClearSign Technologies is navigating challenges related to its Nasdaq listing, having received a notice regarding non-compliance with minimum bid price requirements. The company has until September 29, 2025, to regain compliance. Additionally, ClearSign has entered into new cooperation agreements with stockholders to stabilize its board composition and governance. The company remains focused on securing additional funding through equity offerings and strategic partnerships to support its commercialization efforts and ongoing operations.
About ClearSign Technologies Corp
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