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Side-by-side financial comparison of FLEXIBLE SOLUTIONS INTERNATIONAL INC (FSI) and FUEL TECH, INC. (FTEK). Click either name above to swap in a different company.
FLEXIBLE SOLUTIONS INTERNATIONAL INC is the larger business by last-quarter revenue ($9.1M vs $7.2M, roughly 1.3× FUEL TECH, INC.). On growth, FUEL TECH, INC. posted the faster year-over-year revenue change (37.2% vs -0.5%). FUEL TECH, INC. produced more free cash flow last quarter ($-2.0M vs $-4.0M). Over the past eight quarters, FUEL TECH, INC.'s revenue compounded faster (20.9% CAGR vs -0.6%).
Flexible Solutions International Inc develops and manufactures specialty chemicals for water conservation, energy efficiency, and agricultural use. Core products include water body evaporative reduction solutions, farm crop yield additives, and swimming pool heat retention products, serving customers across North America and global agricultural markets.
Rocket Fuel was an ad technology company based in Redwood City, California. It was founded in 2008 by alumni of Yahoo!.
FSI vs FTEK — Head-to-Head
Income Statement — Q4 FY2025 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $9.1M | $7.2M |
| Net Profit | $-460.9K | — |
| Gross Margin | 29.4% | 44.6% |
| Operating Margin | 11.6% | -19.7% |
| Net Margin | -5.1% | — |
| Revenue YoY | -0.5% | 37.2% |
| Net Profit YoY | -167.8% | — |
| EPS (diluted) | $-0.03 | $-0.05 |
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 | $9.1M | $7.2M | ||
| Q3 25 | $10.6M | $7.5M | ||
| Q2 25 | $11.4M | $5.6M | ||
| Q1 25 | $7.5M | $6.4M | ||
| Q4 24 | $9.2M | $5.3M | ||
| Q3 24 | $9.3M | $7.9M | ||
| Q2 24 | $10.5M | $7.0M | ||
| Q1 24 | $9.2M | $5.0M |
| Q4 25 | $-460.9K | — | ||
| Q3 25 | $-503.4K | $303.0K | ||
| Q2 25 | $2.0M | $-689.0K | ||
| Q1 25 | $-277.7K | $-739.0K | ||
| Q4 24 | $679.6K | — | ||
| Q3 24 | $611.9K | $80.0K | ||
| Q2 24 | $1.3M | $-421.0K | ||
| Q1 24 | $457.2K | $281.0K |
| Q4 25 | 29.4% | 44.6% | ||
| Q3 25 | 23.9% | 48.9% | ||
| Q2 25 | 47.4% | 45.5% | ||
| Q1 25 | 26.1% | 46.4% | ||
| Q4 24 | 29.2% | 42.3% | ||
| Q3 24 | 40.9% | 43.4% | ||
| Q2 24 | 37.4% | 41.9% | ||
| Q1 24 | 30.6% | 40.9% |
| Q4 25 | 11.6% | -19.7% | ||
| Q3 25 | 2.9% | 0.1% | ||
| Q2 25 | 29.0% | -23.5% | ||
| Q1 25 | -0.9% | -14.9% | ||
| Q4 24 | 9.4% | -40.1% | ||
| Q3 24 | 20.5% | -2.3% | ||
| Q2 24 | 18.7% | -10.2% | ||
| Q1 24 | 8.3% | -34.1% |
| Q4 25 | -5.1% | — | ||
| Q3 25 | -4.8% | 4.0% | ||
| Q2 25 | 17.8% | -12.4% | ||
| Q1 25 | -3.7% | -11.6% | ||
| Q4 24 | 7.4% | — | ||
| Q3 24 | 6.6% | 1.0% | ||
| Q2 24 | 12.3% | -6.0% | ||
| Q1 24 | 5.0% | 5.7% |
| Q4 25 | $-0.03 | $-0.05 | ||
| Q3 25 | $-0.04 | $0.01 | ||
| Q2 25 | $0.15 | $-0.02 | ||
| Q1 25 | $-0.02 | $-0.02 | ||
| Q4 24 | $0.05 | $-0.06 | ||
| Q3 24 | $0.05 | $0.00 | ||
| Q2 24 | $0.10 | $-0.01 | ||
| Q1 24 | $0.04 | $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 | — | $24.9M |
| Total DebtLower is stronger | $4.4M | — |
| Stockholders' EquityBook value | $38.9M | $39.9M |
| Total Assets | $61.8M | $47.2M |
| Debt / EquityLower = less leverage | 0.11× | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | — | $24.9M | ||
| Q3 25 | — | $25.9M | ||
| Q2 25 | $10.0M | $23.0M | ||
| Q1 25 | $11.0M | $21.8M | ||
| Q4 24 | $10.0M | $18.7M | ||
| Q3 24 | $13.0M | $20.4M | ||
| Q2 24 | $9.2M | $20.1M | ||
| Q1 24 | $8.3M | $23.3M |
| Q4 25 | $4.4M | — | ||
| Q3 25 | $7.1M | — | ||
| Q2 25 | $7.5M | — | ||
| Q1 25 | $8.1M | — | ||
| Q4 24 | $8.8M | — | ||
| Q3 24 | $9.4M | — | ||
| Q2 24 | $8.3M | — | ||
| Q1 24 | $8.0M | — |
| Q4 25 | $38.9M | $39.9M | ||
| Q3 25 | $39.0M | $41.0M | ||
| Q2 25 | $39.4M | $40.7M | ||
| Q1 25 | $38.4M | $41.4M | ||
| Q4 24 | $38.0M | $42.0M | ||
| Q3 24 | $36.9M | $43.9M | ||
| Q2 24 | $36.2M | $43.6M | ||
| Q1 24 | $36.0M | $44.0M |
| Q4 25 | $61.8M | $47.2M | ||
| Q3 25 | $58.4M | $47.9M | ||
| Q2 25 | $58.2M | $47.0M | ||
| Q1 25 | $61.7M | $46.7M | ||
| Q4 24 | $60.0M | $48.8M | ||
| Q3 24 | $57.8M | $50.1M | ||
| Q2 24 | $56.3M | $49.0M | ||
| Q1 24 | $57.6M | $49.4M |
| Q4 25 | 0.11× | — | ||
| Q3 25 | 0.18× | — | ||
| Q2 25 | 0.19× | — | ||
| Q1 25 | 0.21× | — | ||
| Q4 24 | 0.23× | — | ||
| Q3 24 | 0.25× | — | ||
| Q2 24 | 0.23× | — | ||
| Q1 24 | 0.22× | — |
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 | $-3.0M | $-1.6M |
| Free Cash FlowOCF − Capex | $-4.0M | $-2.0M |
| FCF MarginFCF / Revenue | -44.3% | -27.7% |
| Capex IntensityCapex / Revenue | 11.7% | 6.1% |
| Cash ConversionOCF / Net Profit | — | — |
| TTM Free Cash FlowTrailing 4 quarters | $-591.7K | $2.3M |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $-3.0M | $-1.6M | ||
| Q3 25 | $2.0M | $3.1M | ||
| Q2 25 | $5.3M | $-21.0K | ||
| Q1 25 | $-544.3K | $1.5M | ||
| Q4 24 | $-2.2M | $-1.6M | ||
| Q3 24 | $2.5M | $879.0K | ||
| Q2 24 | $5.9M | $-1.6M | ||
| Q1 24 | $-604.8K | $-1.1M |
| Q4 25 | $-4.0M | $-2.0M | ||
| Q3 25 | $39.4K | $3.0M | ||
| Q2 25 | $4.3M | $-57.0K | ||
| Q1 25 | $-898.4K | $1.4M | ||
| Q4 24 | $-4.3M | $-1.7M | ||
| Q3 24 | $1.3M | $767.0K | ||
| Q2 24 | $4.7M | $-1.7M | ||
| Q1 24 | $-1.1M | $-1.2M |
| Q4 25 | -44.3% | -27.7% | ||
| Q3 25 | 0.4% | 39.6% | ||
| Q2 25 | 37.9% | -1.0% | ||
| Q1 25 | -12.0% | 22.6% | ||
| Q4 24 | -47.0% | -32.4% | ||
| Q3 24 | 13.6% | 9.8% | ||
| Q2 24 | 44.9% | -23.8% | ||
| Q1 24 | -11.7% | -24.0% |
| Q4 25 | 11.7% | 6.1% | ||
| Q3 25 | 18.7% | 1.7% | ||
| Q2 25 | 8.6% | 0.6% | ||
| Q1 25 | 4.7% | 1.0% | ||
| Q4 24 | 22.8% | 1.2% | ||
| Q3 24 | 13.0% | 1.4% | ||
| Q2 24 | 11.3% | 1.3% | ||
| Q1 24 | 5.2% | 2.3% |
| Q4 25 | — | — | ||
| Q3 25 | — | 10.22× | ||
| Q2 25 | 2.60× | — | ||
| Q1 25 | — | — | ||
| Q4 24 | -3.27× | — | ||
| Q3 24 | 4.05× | 10.99× | ||
| Q2 24 | 4.59× | — | ||
| Q1 24 | -1.32× | -3.83× |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
FSI
Segment breakdown not available.
FTEK
| Transferred At Point In Time | $5.3M | 73% |
| Other | $2.0M | 27% |
