---
title: "ClearSign Technologies Corp 1Q 2026: Revenue $191K, EPS ($0.39) — 10-Q Summary"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/286575142.md"
description: "ClearSign Technologies Corp reported Q1 2026 revenue of $191K, down 52.4% from $401K a year earlier, with a net loss of $2.19M or $0.39 per share. The decline in revenue was attributed to lower product shipments. The company is focusing on commercial applications and has increased warranty accruals for product performance. ClearSign continues to seek funding through equity and partnerships for its technology scaling."
datetime: "2026-05-15T13:31:01.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/286575142.md)
  - [en](https://longbridge.com/en/news/286575142.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/286575142.md)
---

# ClearSign Technologies Corp 1Q 2026: Revenue $191K, EPS ($0.39) — 10-Q Summary

ClearSign Technologies Corp reported first-quarter 2026 results with revenue of $191K, down from $401K a year earlier, and a net loss of ($2.19M) or ($0.39) per share, slightly wider than the prior-year quarter — 10-Q Summary.

**Financial Highlights**

Metric

Current quarter

Prior year quarter

YoY change

Revenue¹

$191K

$401K

(52.4%)

Net income²

($2.19M)

($2.08M)

(5.5%)

Diluted EPS³

($0.39)

($0.38)

(2.6%)

_¹ Reported as “Revenues”. ² Reported as “Net loss”. ³ Reported as “loss per share - basic and fully diluted”._

**Business Highlights**

-   Revenue declined as the company saw lower product and service shipments compared with the prior year, with a shift in mix from spare parts and engineering to mid-stream and boiler burner product orders.
-   Process burner products demonstrated performance up to an 80% firing rate in testing; the company increased warranty accruals to address tuning at maximum firing rates.
-   Commercial momentum included first customer installations operating in commercial applications and successful full-scale tests that validated the technology.
-   ClearSign continues to rely on equity, partnerships and co-development arrangements to fund commercialization and scaling of its offerings.

Original SEC Filing: ClearSign Technologies Corp \[ CLIR \] - 10-Q - May. 15, 2026

**Disclaimer**

This is an AI-powered summary. It may contain inaccuracies. Consider verifying important information with the source. Please note this summary is solely based on documents filed with the SEC.

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