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Side-by-side financial comparison of ClearSign Technologies Corp (CLIR) and MESA LABORATORIES INC (MLAB). Click either name above to swap in a different company.
MESA LABORATORIES INC is the larger business by last-quarter revenue ($65.1M vs $3.7M, roughly 17.7× ClearSign Technologies Corp). MESA LABORATORIES INC runs the higher net margin — 5.6% vs -8.5%, a 14.0% gap on every dollar of revenue. On growth, ClearSign Technologies Corp posted the faster year-over-year revenue change (522.2% vs 3.6%). Over the past eight quarters, ClearSign Technologies Corp's revenue compounded faster (82.5% CAGR vs 5.1%).
ClearSign Technologies Corporation (ClearSign) is a United States-based company that develops emission-control technology.
Mesa Laboratories Inc. develops, manufactures and sells professional quality control, calibration and monitoring instruments as well as related supporting services. Its core offerings cater to healthcare, pharmaceutical, food and beverage, industrial hygiene and environmental testing markets, helping global clients meet regulatory compliance and operational safety requirements.
CLIR vs MLAB — Head-to-Head
Income Statement — Q4 2025 vs Q3 2026
| Metric | | |
|---|---|---|
| Revenue | $3.7M | $65.1M |
| Net Profit | $-311.0K | $3.6M |
| Gross Margin | 21.9% | 64.2% |
| Operating Margin | -22.5% | 12.2% |
| Net Margin | -8.5% | 5.6% |
| Revenue YoY | 522.2% | 3.6% |
| Net Profit YoY | 73.3% | 316.6% |
| EPS (diluted) | $-0.06 | $0.65 |
Green = leading value per metric. Periods may differ when fiscal calendars don't align.
8-Quarter Revenue & Profit Trend
Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.
| Q4 25 | $3.7M | $65.1M | ||
| Q3 25 | $1.0M | $60.7M | ||
| Q2 25 | $133.0K | $59.5M | ||
| Q1 25 | $401.0K | $62.1M | ||
| Q4 24 | $590.0K | $62.8M | ||
| Q3 24 | $1.9M | $57.8M | ||
| Q2 24 | $45.0K | $58.2M | ||
| Q1 24 | $1.1M | $58.9M |
| Q4 25 | $-311.0K | $3.6M | ||
| Q3 25 | $-1.4M | $2.5M | ||
| Q2 25 | $-1.7M | $4.7M | ||
| Q1 25 | $-2.1M | $-7.1M | ||
| Q4 24 | $-1.2M | $-1.7M | ||
| Q3 24 | $-1.2M | $3.4M | ||
| Q2 24 | $-1.9M | $3.4M | ||
| Q1 24 | $-1.1M | $-254.6M |
| Q4 25 | 21.9% | 64.2% | ||
| Q3 25 | 35.8% | 61.5% | ||
| Q2 25 | 41.4% | 62.0% | ||
| Q1 25 | 48.9% | 61.8% | ||
| Q4 24 | 14.9% | 63.3% | ||
| Q3 24 | 29.6% | 61.3% | ||
| Q2 24 | 93.3% | 64.0% | ||
| Q1 24 | 39.7% | 62.1% |
| Q4 25 | -22.5% | 12.2% | ||
| Q3 25 | -170.1% | 7.8% | ||
| Q2 25 | -1382.0% | 5.1% | ||
| Q1 25 | -562.8% | 2.4% | ||
| Q4 24 | -282.4% | 9.2% | ||
| Q3 24 | -77.1% | 6.1% | ||
| Q2 24 | -4748.9% | 9.6% | ||
| Q1 24 | -113.6% | -460.6% |
| Q4 25 | -8.5% | 5.6% | ||
| Q3 25 | -138.9% | 4.1% | ||
| Q2 25 | -1263.2% | 8.0% | ||
| Q1 25 | -517.7% | -11.4% | ||
| Q4 24 | -197.3% | -2.7% | ||
| Q3 24 | -62.1% | 5.9% | ||
| Q2 24 | -4160.0% | 5.8% | ||
| Q1 24 | -100.5% | -432.2% |
| Q4 25 | $-0.06 | $0.65 | ||
| Q3 25 | $-0.26 | $0.45 | ||
| Q2 25 | $-0.30 | $0.85 | ||
| Q1 25 | $-0.37 | $-1.30 | ||
| Q4 24 | $-0.18 | $-0.31 | ||
| Q3 24 | $-0.20 | $0.63 | ||
| Q2 24 | $-0.40 | $0.62 | ||
| Q1 24 | $-0.30 | $-47.26 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $9.2M | $29.0M |
| Total DebtLower is stronger | — | $68.4M |
| Stockholders' EquityBook value | $9.5M | $186.7M |
| Total Assets | $12.2M | $434.8M |
| Debt / EquityLower = less leverage | — | 0.37× |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $9.2M | $29.0M | ||
| Q3 25 | $10.5M | $20.4M | ||
| Q2 25 | $12.3M | $21.3M | ||
| Q1 25 | $12.9M | $27.3M | ||
| Q4 24 | $14.0M | $27.3M | ||
| Q3 24 | $14.5M | $24.3M | ||
| Q2 24 | $16.0M | $28.5M | ||
| Q1 24 | $4.6M | $28.2M |
| Q4 25 | — | $68.4M | ||
| Q3 25 | — | $69.4M | ||
| Q2 25 | — | $70.3M | ||
| Q1 25 | — | $71.3M | ||
| Q4 24 | — | $72.2M | ||
| Q3 24 | — | $73.1M | ||
| Q2 24 | — | $74.1M | ||
| Q1 24 | — | — |
| Q4 25 | $9.5M | $186.7M | ||
| Q3 25 | $9.1M | $178.5M | ||
| Q2 25 | $10.4M | $172.5M | ||
| Q1 25 | $12.0M | $159.8M | ||
| Q4 24 | $13.8M | $155.2M | ||
| Q3 24 | $14.8M | $161.5M | ||
| Q2 24 | $15.9M | $150.7M | ||
| Q1 24 | $4.5M | $145.4M |
| Q4 25 | $12.2M | $434.8M | ||
| Q3 25 | $12.7M | $430.4M | ||
| Q2 25 | $14.2M | $435.7M | ||
| Q1 25 | $14.5M | $433.3M | ||
| Q4 24 | $16.3M | $433.3M | ||
| Q3 24 | $17.1M | $454.1M | ||
| Q2 24 | $17.8M | $440.4M | ||
| Q1 24 | $6.6M | $446.8M |
| Q4 25 | — | 0.37× | ||
| Q3 25 | — | 0.39× | ||
| Q2 25 | — | 0.41× | ||
| Q1 25 | — | 0.45× | ||
| Q4 24 | — | 0.47× | ||
| Q3 24 | — | 0.45× | ||
| Q2 24 | — | 0.49× | ||
| Q1 24 | — | — |
Cash Flow & Capital Efficiency
How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.
| Metric | | |
|---|---|---|
| Operating Cash FlowLast quarter | $-1.3M | $18.8M |
| Free Cash FlowOCF − Capex | — | $18.0M |
| FCF MarginFCF / Revenue | — | 27.7% |
| Capex IntensityCapex / Revenue | 0.0% | 1.1% |
| Cash ConversionOCF / Net Profit | — | 5.17× |
| TTM Free Cash FlowTrailing 4 quarters | — | $37.9M |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $-1.3M | $18.8M | ||
| Q3 25 | $-1.8M | $8.2M | ||
| Q2 25 | $-511.0K | $1.9M | ||
| Q1 25 | $-1.1M | $12.7M | ||
| Q4 24 | $-415.0K | $18.1M | ||
| Q3 24 | $-1.4M | $5.3M | ||
| Q2 24 | $-1.5M | $10.7M | ||
| Q1 24 | $-1.0M | $12.9M |
| Q4 25 | — | $18.0M | ||
| Q3 25 | — | $7.1M | ||
| Q2 25 | — | $884.0K | ||
| Q1 25 | $-1.1M | $11.9M | ||
| Q4 24 | — | $17.3M | ||
| Q3 24 | — | $3.5M | ||
| Q2 24 | — | $9.9M | ||
| Q1 24 | — | $12.3M |
| Q4 25 | — | 27.7% | ||
| Q3 25 | — | 11.7% | ||
| Q2 25 | — | 1.5% | ||
| Q1 25 | -278.1% | 19.2% | ||
| Q4 24 | — | 27.6% | ||
| Q3 24 | — | 6.0% | ||
| Q2 24 | — | 16.9% | ||
| Q1 24 | — | 21.0% |
| Q4 25 | 0.0% | 1.1% | ||
| Q3 25 | 0.0% | 1.8% | ||
| Q2 25 | 0.0% | 1.7% | ||
| Q1 25 | 1.0% | 1.2% | ||
| Q4 24 | — | 1.3% | ||
| Q3 24 | 0.0% | 3.1% | ||
| Q2 24 | — | 1.5% | ||
| Q1 24 | — | 0.9% |
| Q4 25 | — | 5.17× | ||
| Q3 25 | — | 3.32× | ||
| Q2 25 | — | 0.40× | ||
| Q1 25 | — | — | ||
| Q4 24 | — | — | ||
| Q3 24 | — | 1.54× | ||
| Q2 24 | — | 3.17× | ||
| Q1 24 | — | — |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
CLIR
Segment breakdown not available.
MLAB
| Sterilization And Disinfection Control | $24.9M | 38% |
| Biopharmaceutical Development | $14.4M | 22% |
| Other | $14.1M | 22% |
| Clinical Genomics | $11.8M | 18% |
