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Side-by-side financial comparison of Clean Energy Fuels Corp. (CLNE) and Montauk Renewables, Inc. (MNTK). Click either name above to swap in a different company.
Clean Energy Fuels Corp. is the larger business by last-quarter revenue ($112.3M vs $43.4M, roughly 2.6× Montauk Renewables, Inc.). Montauk Renewables, Inc. runs the higher net margin — 5.7% vs -38.3%, a 44.0% gap on every dollar of revenue. On growth, Montauk Renewables, Inc. posted the faster year-over-year revenue change (56.7% vs 2.7%). Clean Energy Fuels Corp. produced more free cash flow last quarter ($6.5M vs $-41.1M). Over the past eight quarters, Montauk Renewables, Inc.'s revenue compounded faster (5.8% CAGR vs 4.1%).
Bloom Energy is an American public company that designs and manufactures solid oxide fuel cells (SOFCs) which independently produce electricity onsite for power generation in data centers, manufacturing, and other commercial sectors. Founded in 2001 and headquartered in San Jose, California; its fuel cell technology generates electricity through a chemical conversion process, which differs from most other power sources reliant on combustion, and can use natural gas, biogas or hydrogen as fuel...
Montauk Renewables, Inc. is a US-based renewable energy firm specializing in capturing and converting biogenic methane from landfills and agricultural waste into renewable natural gas (RNG) and low-carbon electricity. It serves utility, commercial, and industrial customers across North America, with operations focused on advancing decarbonization and sustainable energy transition goals.
CLNE vs MNTK — Head-to-Head
Income Statement — Q4 2025 vs Q4 2025
| Metric | | |
|---|---|---|
| Revenue | $112.3M | $43.4M |
| Net Profit | $-43.0M | $2.5M |
| Gross Margin | — | — |
| Operating Margin | -9.5% | -3.8% |
| Net Margin | -38.3% | 5.7% |
| Revenue YoY | 2.7% | 56.7% |
| Net Profit YoY | -42.6% | 129.5% |
| EPS (diluted) | $-0.21 | $0.01 |
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 | $112.3M | $43.4M | ||
| Q3 25 | $106.1M | $45.3M | ||
| Q2 25 | $102.6M | $45.1M | ||
| Q1 25 | $103.8M | $42.6M | ||
| Q4 24 | $109.3M | $27.7M | ||
| Q3 24 | $104.9M | $65.9M | ||
| Q2 24 | $98.0M | $43.3M | ||
| Q1 24 | $103.7M | $38.8M |
| Q4 25 | $-43.0M | $2.5M | ||
| Q3 25 | $-23.8M | $5.2M | ||
| Q2 25 | $-20.2M | $-5.5M | ||
| Q1 25 | $-135.0M | $-464.0K | ||
| Q4 24 | $-30.2M | $-8.5M | ||
| Q3 24 | $-18.2M | $17.0M | ||
| Q2 24 | $-16.3M | $-712.0K | ||
| Q1 24 | $-18.4M | $1.9M |
| Q4 25 | — | — | ||
| Q3 25 | — | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | — | — | ||
| Q3 24 | — | 43.8% | ||
| Q2 24 | — | 15.6% | ||
| Q1 24 | — | 22.8% |
| Q4 25 | -9.5% | -3.8% | ||
| Q3 25 | -12.8% | 9.8% | ||
| Q2 25 | -9.0% | -5.2% | ||
| Q1 25 | -121.7% | 1.0% | ||
| Q4 24 | -11.8% | -35.5% | ||
| Q3 24 | -8.1% | 34.4% | ||
| Q2 24 | -5.7% | 2.0% | ||
| Q1 24 | -9.0% | 6.1% |
| Q4 25 | -38.3% | 5.7% | ||
| Q3 25 | -22.4% | 11.5% | ||
| Q2 25 | -19.7% | -12.2% | ||
| Q1 25 | -130.1% | -1.1% | ||
| Q4 24 | -27.6% | -30.5% | ||
| Q3 24 | -17.3% | 25.9% | ||
| Q2 24 | -16.6% | -1.6% | ||
| Q1 24 | -17.8% | 4.8% |
| Q4 25 | $-0.21 | $0.01 | ||
| Q3 25 | $-0.11 | $0.04 | ||
| Q2 25 | $-0.09 | $-0.04 | ||
| Q1 25 | $-0.60 | $0.00 | ||
| Q4 24 | $-0.14 | $-0.05 | ||
| Q3 24 | $-0.08 | $0.12 | ||
| Q2 24 | $-0.07 | $-0.01 | ||
| Q1 24 | $-0.08 | $0.01 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $156.1M | $23.8M |
| Total DebtLower is stronger | $226.8M | $126.0M |
| Stockholders' EquityBook value | $559.4M | $263.1M |
| Total Assets | $1.1B | $435.5M |
| Debt / EquityLower = less leverage | 0.41× | 0.48× |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $156.1M | $23.8M | ||
| Q3 25 | $232.2M | $6.8M | ||
| Q2 25 | $240.8M | $29.1M | ||
| Q1 25 | $226.6M | $40.1M | ||
| Q4 24 | $217.5M | $45.6M | ||
| Q3 24 | $243.5M | $55.0M | ||
| Q2 24 | $249.3M | $42.3M | ||
| Q1 24 | $248.9M | $63.3M |
| Q4 25 | $226.8M | $126.0M | ||
| Q3 25 | $284.3M | $54.9M | ||
| Q2 25 | $277.9M | $57.8M | ||
| Q1 25 | $271.6M | $40.8M | ||
| Q4 24 | $265.4M | $43.8M | ||
| Q3 24 | $264.1M | $46.7M | ||
| Q2 24 | $263.0M | $49.7M | ||
| Q1 24 | $262.0M | $52.7M |
| Q4 25 | $559.4M | $263.1M | ||
| Q3 25 | $585.2M | $260.7M | ||
| Q2 25 | $590.8M | $254.7M | ||
| Q1 25 | $596.7M | $258.2M | ||
| Q4 24 | $713.3M | $257.4M | ||
| Q3 24 | $724.8M | $275.3M | ||
| Q2 24 | $723.0M | $255.3M | ||
| Q1 24 | $722.9M | $254.3M |
| Q4 25 | $1.1B | $435.5M | ||
| Q3 25 | $1.1B | $383.3M | ||
| Q2 25 | $1.1B | $382.5M | ||
| Q1 25 | $1.1B | $354.2M | ||
| Q4 24 | $1.2B | $349.0M | ||
| Q3 24 | $1.2B | $374.1M | ||
| Q2 24 | $1.2B | $362.0M | ||
| Q1 24 | $1.2B | $354.7M |
| Q4 25 | 0.41× | 0.48× | ||
| Q3 25 | 0.49× | 0.21× | ||
| Q2 25 | 0.47× | 0.23× | ||
| Q1 25 | 0.46× | 0.16× | ||
| Q4 24 | 0.37× | 0.17× | ||
| Q3 24 | 0.36× | 0.17× | ||
| Q2 24 | 0.36× | 0.19× | ||
| Q1 24 | 0.36× | 0.21× |
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 | $13.1M | $337.0K |
| Free Cash FlowOCF − Capex | $6.5M | $-41.1M |
| FCF MarginFCF / Revenue | 5.8% | -94.7% |
| Capex IntensityCapex / Revenue | 5.9% | 95.5% |
| Cash ConversionOCF / Net Profit | — | 0.14× |
| TTM Free Cash FlowTrailing 4 quarters | $59.9M | $-86.2M |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $13.1M | $337.0K | ||
| Q3 25 | $13.1M | $12.7M | ||
| Q2 25 | $35.9M | $8.2M | ||
| Q1 25 | $23.4M | $9.1M | ||
| Q4 24 | $21.9M | $724.0K | ||
| Q3 24 | $21.4M | $28.6M | ||
| Q2 24 | $18.8M | $193.0K | ||
| Q1 24 | $2.6M | $14.3M |
| Q4 25 | $6.5M | $-41.1M | ||
| Q3 25 | $6.5M | $-17.2M | ||
| Q2 25 | $30.9M | $-25.5M | ||
| Q1 25 | $15.9M | $-2.5M | ||
| Q4 24 | $10.3M | $-8.3M | ||
| Q3 24 | $42.0K | $16.0M | ||
| Q2 24 | $4.8M | $-18.6M | ||
| Q1 24 | $-15.6M | $-7.7M |
| Q4 25 | 5.8% | -94.7% | ||
| Q3 25 | 6.1% | -37.9% | ||
| Q2 25 | 30.2% | -56.4% | ||
| Q1 25 | 15.4% | -5.8% | ||
| Q4 24 | 9.5% | -29.8% | ||
| Q3 24 | 0.0% | 24.3% | ||
| Q2 24 | 4.9% | -42.9% | ||
| Q1 24 | -15.1% | -19.8% |
| Q4 25 | 5.9% | 95.5% | ||
| Q3 25 | 6.2% | 65.9% | ||
| Q2 25 | 4.8% | 74.6% | ||
| Q1 25 | 7.2% | 27.3% | ||
| Q4 24 | 10.5% | 32.5% | ||
| Q3 24 | 20.3% | 19.1% | ||
| Q2 24 | 14.2% | 43.3% | ||
| Q1 24 | 17.6% | 56.7% |
| Q4 25 | — | 0.14× | ||
| Q3 25 | — | 2.43× | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | — | — | ||
| Q3 24 | — | 1.68× | ||
| Q2 24 | — | — | ||
| Q1 24 | — | 7.73× |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
CLNE
| Volume Related Fuel Sales | $73.6M | 66% |
| Services | $15.1M | 13% |
| Station Construction Sales | $10.7M | 9% |
| Volume Related Renewable Identification Number Credits | $9.5M | 8% |
| Volume Related Low Carbon Fuel Standard Credits | $3.4M | 3% |
MNTK
| Natural Gas Environmental Attributes | $28.1M | 65% |
| Natural Gas Commodity | $10.7M | 25% |
| Electric Commodity | $2.7M | 6% |
| Electric Environmental Attributes | $2.0M | 5% |
