ClearSign Technologies (CLIR) Free Cash Flow (2011 - 2026)

ClearSign Technologies (CLIR) reported Free Cash Flow of -$1.3 million for Q1 2026, down 20.9% on a YoY basis from -$1.7 million in Q1 2025, and down 5.07% quarter-over-quarter from -$1.3 million in Q4 2025.

ClearSign Technologies (CLIR) Free Cash Flow (2011 - 2026) Analysis & Trends

ClearSign Technologies has reported Free Cash Flow for 16 years, with the latest figure at -$1.3 million in Q1 2026.

  • For the quarter ending Q1 2026, Free Cash Flow fell 20.9% year-over-year to -$1.3 million; the trailing twelve-month figure through Mar 2026 stood at -$5.0 million (down 10.31% YoY), and the FY2025 full-year result was -$4.7 million, down 7.43% from the prior year.
  • Free Cash Flow for Q1 2026 stood at -$1.3 million, down from -$1.3 million in the prior quarter.
  • The five-year high for Free Cash Flow was $46000.0 in Q2 2023, with the low at -$1.8 million in Q2 2022.
  • Historically, Free Cash Flow has averaged -$1.1 million across 5 years, with a median of -$1.3 million in 2023.
  • Annual changes were most pronounced in 2023 — Free Cash Flow soared 102.49% — and 2024, when it sank 3413.04%.
  • ClearSign Technologies' Free Cash Flow stood at -$733000.0 in 2022, then tumbled by 97.82% to -$1.4 million in 2023, then soared by 69.93% to -$436000.0 in 2024, then slumped by 194.27% to -$1.3 million in 2025, then slipped by 5.07% to -$1.3 million in 2026.
  • The last three Free Cash Flow figures came in at -$1.3 million (Q1 2026), -$1.3 million (Q4 2025), and -$1.8 million (Q3 2025), per Business Quant data.

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) Free Cash Flow (Qtr)
1 Aduro Clean Technologies 856.39 Bn 856.36 Bn - -1.53 Mn
2 Veralto 20.76 Bn 19.33 Bn 854.00 Mn 170.00 Mn
3 Zurn Elkay Water Solutions 8.35 Bn 8.08 Bn 205.80 Mn 42.70 Mn
4 Federal Signal 7.20 Bn 7.13 Bn 179.40 Mn 94.60 Mn
5 Ceco Environmental 3.52 Bn 3.48 Bn 63.92 Mn -15.69 Mn
6 PureCycle Technologies 1.57 Bn 1.47 Bn - -46.09 Mn
7 Energy Recovery 497.64 Mn 411.49 Mn 2.70 Mn 20.22 Mn
8 CleanCore Solutions 210.18 Mn 193.13 Mn -419,259.00 -137.87 Mn
9 Arq 118.94 Mn 114.26 Mn 9.94 Mn -676,000.00
10 ClearSign Technologies 963,300.02 -6.77 Mn -393,000.00 -1.35 Mn

Historic Data

Download Data
DateValue
Mar 31, 2026 -1.35 Mn
Mar 31, 2026 -1.35 Mn
Dec 31, 2025 -1.28 Mn
Dec 31, 2025 -1.28 Mn
Sep 30, 2025 -1.83 Mn
Sep 30, 2025 -1.83 Mn
Jun 30, 2025 -511,000.00
Jun 30, 2025 -511,000.00
Mar 31, 2025 -1.12 Mn
Mar 31, 2025 -1.12 Mn
Dec 31, 2024 -436,000.00
Dec 31, 2024 -436,000.00
Sep 30, 2024 -1.43 Mn
Sep 30, 2024 -1.43 Mn
Jun 30, 2024 -1.52 Mn
Jun 30, 2024 -1.52 Mn
Mar 31, 2024 -1.00 Mn
Mar 31, 2024 -1.00 Mn
Dec 31, 2023 -1.45 Mn
Dec 31, 2023 -1.45 Mn