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Side-by-side financial comparison of Ouster, Inc. (OUST) and Perimeter Solutions, Inc. (PRM). Click either name above to swap in a different company.
Perimeter Solutions, Inc. is the larger business by last-quarter revenue ($102.8M vs $62.2M, roughly 1.7× Ouster, Inc.). On growth, Ouster, Inc. posted the faster year-over-year revenue change (106.6% vs 19.2%). Perimeter Solutions, Inc. produced more free cash flow last quarter ($11.6M vs $-37.2M). Over the past eight quarters, Ouster, Inc.'s revenue compounded faster (54.8% CAGR vs 31.9%).
Ouster, Inc. is an American lidar technology company headquartered in San Francisco, California. It builds high-resolution, digital 3D lidar sensors for use in autonomous vehicles, industrial, robotics, drones, mapping, defense, and security systems.
Perimeter 81 is an Israeli cloud and network security company that develops secure remote networks, based on the zero trust architecture, for organizations. Its technology replaces legacy security appliances like VPNs and firewalls.
OUST vs PRM — Head-to-Head
Income Statement — Q4 FY2025 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $62.2M | $102.8M |
| Net Profit | — | $-140.2M |
| Gross Margin | 60.2% | 45.2% |
| Operating Margin | 1.5% | -160.7% |
| Net Margin | — | -136.5% |
| Revenue YoY | 106.6% | 19.2% |
| Net Profit YoY | — | -197.3% |
| EPS (diluted) | $0.10 | $-0.89 |
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 | $62.2M | $102.8M | ||
| Q3 25 | $39.5M | $315.4M | ||
| Q2 25 | $35.0M | $162.6M | ||
| Q1 25 | $32.6M | $72.0M | ||
| Q4 24 | $30.1M | $86.2M | ||
| Q3 24 | $28.1M | $288.4M | ||
| Q2 24 | $27.0M | $127.3M | ||
| Q1 24 | $25.9M | $59.0M |
| Q4 25 | — | $-140.2M | ||
| Q3 25 | $-21.7M | $-90.7M | ||
| Q2 25 | $-20.6M | $-32.2M | ||
| Q1 25 | $-22.0M | $56.7M | ||
| Q4 24 | — | $144.2M | ||
| Q3 24 | $-25.6M | $-89.2M | ||
| Q2 24 | $-23.9M | $21.6M | ||
| Q1 24 | $-23.8M | $-82.6M |
| Q4 25 | 60.2% | 45.2% | ||
| Q3 25 | 42.1% | 63.1% | ||
| Q2 25 | 45.2% | 62.4% | ||
| Q1 25 | 41.3% | 39.1% | ||
| Q4 24 | 43.8% | 48.6% | ||
| Q3 24 | 38.3% | 62.8% | ||
| Q2 24 | 33.7% | 57.6% | ||
| Q1 24 | 28.6% | 35.1% |
| Q4 25 | 1.5% | -160.7% | ||
| Q3 25 | -61.4% | -27.7% | ||
| Q2 25 | -76.5% | -16.1% | ||
| Q1 25 | -73.0% | — | ||
| Q4 24 | -85.1% | 71.1% | ||
| Q3 24 | -98.0% | -12.2% | ||
| Q2 24 | -93.6% | 35.4% | ||
| Q1 24 | -99.5% | -126.8% |
| Q4 25 | — | -136.5% | ||
| Q3 25 | -55.0% | -28.7% | ||
| Q2 25 | -58.8% | -19.8% | ||
| Q1 25 | -67.5% | 78.7% | ||
| Q4 24 | — | 167.2% | ||
| Q3 24 | -91.1% | -30.9% | ||
| Q2 24 | -88.4% | 17.0% | ||
| Q1 24 | -91.9% | -139.8% |
| Q4 25 | $0.10 | $-0.89 | ||
| Q3 25 | $-0.37 | $-0.62 | ||
| Q2 25 | $-0.38 | $-0.22 | ||
| Q1 25 | $-0.42 | $0.36 | ||
| Q4 24 | $-0.46 | $1.00 | ||
| Q3 24 | $-0.54 | $-0.61 | ||
| Q2 24 | $-0.53 | $0.14 | ||
| Q1 24 | $-0.55 | $-0.57 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $208.6M | $325.9M |
| Total DebtLower is stronger | — | $669.1M |
| Stockholders' EquityBook value | $261.7M | $1.1B |
| Total Assets | $349.5M | $2.7B |
| Debt / EquityLower = less leverage | — | 0.59× |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $208.6M | $325.9M | ||
| Q3 25 | $244.5M | $340.6M | ||
| Q2 25 | $226.5M | $140.7M | ||
| Q1 25 | $168.2M | $200.1M | ||
| Q4 24 | $172.0M | $198.5M | ||
| Q3 24 | $151.4M | $223.1M | ||
| Q2 24 | $184.2M | $43.2M | ||
| Q1 24 | $187.8M | $38.7M |
| Q4 25 | — | $669.1M | ||
| Q3 25 | — | $668.8M | ||
| Q2 25 | — | $668.4M | ||
| Q1 25 | — | $668.1M | ||
| Q4 24 | — | $667.8M | ||
| Q3 24 | — | $667.4M | ||
| Q2 24 | — | $667.1M | ||
| Q1 24 | — | $666.8M |
| Q4 25 | $261.7M | $1.1B | ||
| Q3 25 | $247.4M | $1.1B | ||
| Q2 25 | $221.0M | $1.2B | ||
| Q1 25 | $167.9M | $1.2B | ||
| Q4 24 | $180.9M | $1.2B | ||
| Q3 24 | $171.7M | $1.0B | ||
| Q2 24 | $170.6M | $1.1B | ||
| Q1 24 | $167.2M | $1.1B |
| Q4 25 | $349.5M | $2.7B | ||
| Q3 25 | $353.8M | $2.6B | ||
| Q2 25 | $321.8M | $2.5B | ||
| Q1 25 | $268.6M | $2.4B | ||
| Q4 24 | $276.1M | $2.4B | ||
| Q3 24 | $255.2M | $2.5B | ||
| Q2 24 | $309.9M | $2.3B | ||
| Q1 24 | $317.7M | $2.3B |
| Q4 25 | — | 0.59× | ||
| Q3 25 | — | 0.60× | ||
| Q2 25 | — | 0.57× | ||
| Q1 25 | — | 0.55× | ||
| Q4 24 | — | 0.58× | ||
| Q3 24 | — | 0.67× | ||
| Q2 24 | — | 0.62× | ||
| Q1 24 | — | 0.63× |
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 | $-15.4M | $18.6M |
| Free Cash FlowOCF − Capex | $-37.2M | $11.6M |
| FCF MarginFCF / Revenue | -59.8% | 11.3% |
| Capex IntensityCapex / Revenue | 35.0% | 6.8% |
| Cash ConversionOCF / Net Profit | — | — |
| TTM Free Cash FlowTrailing 4 quarters | $-64.8M | $208.6M |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $-15.4M | $18.6M | ||
| Q3 25 | $-18.3M | $198.7M | ||
| Q2 25 | $-1.3M | $-2.9M | ||
| Q1 25 | $-4.9M | $23.7M | ||
| Q4 24 | $-2.6M | $-6.0M | ||
| Q3 24 | $-3.8M | $183.0M | ||
| Q2 24 | $-21.6M | $8.6M | ||
| Q1 24 | $-5.7M | $2.8M |
| Q4 25 | $-37.2M | $11.6M | ||
| Q3 25 | $-20.0M | $193.6M | ||
| Q2 25 | $-2.2M | $-15.6M | ||
| Q1 25 | $-5.4M | $18.9M | ||
| Q4 24 | $-4.0M | $-12.4M | ||
| Q3 24 | $-4.3M | $179.1M | ||
| Q2 24 | $-22.0M | $5.0M | ||
| Q1 24 | $-7.1M | $1.2M |
| Q4 25 | -59.8% | 11.3% | ||
| Q3 25 | -50.7% | 61.4% | ||
| Q2 25 | -6.3% | -9.6% | ||
| Q1 25 | -16.6% | 26.3% | ||
| Q4 24 | -13.3% | -14.4% | ||
| Q3 24 | -15.4% | 62.1% | ||
| Q2 24 | -81.5% | 3.9% | ||
| Q1 24 | -27.4% | 2.1% |
| Q4 25 | 35.0% | 6.8% | ||
| Q3 25 | 4.3% | 1.6% | ||
| Q2 25 | 2.5% | 7.8% | ||
| Q1 25 | 1.7% | 6.7% | ||
| Q4 24 | 4.8% | 7.5% | ||
| Q3 24 | 2.0% | 1.3% | ||
| Q2 24 | 1.3% | 2.9% | ||
| Q1 24 | 5.3% | 2.6% |
| Q4 25 | — | — | ||
| Q3 25 | — | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | 0.42× | ||
| Q4 24 | — | -0.04× | ||
| Q3 24 | — | — | ||
| Q2 24 | — | 0.40× | ||
| Q1 24 | — | — |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
OUST
Segment breakdown not available.
PRM
| Products | $87.7M | 85% |
| Service And Other | $14.8M | 14% |
