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Side-by-side financial comparison of Perimeter Solutions, Inc. (PRM) and System1, Inc. (SST). Click either name above to swap in a different company.

Perimeter Solutions, Inc. is the larger business by last-quarter revenue ($102.8M vs $51.9M, roughly 2.0× System1, Inc.). System1, Inc. runs the higher net margin — -26.0% vs -136.5%, a 110.5% gap on every dollar of revenue. On growth, Perimeter Solutions, Inc. posted the faster year-over-year revenue change (19.2% vs -31.3%). Over the past eight quarters, Perimeter Solutions, Inc.'s revenue compounded faster (31.9% CAGR vs -21.8%).

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.

System1 is an American Internet advertising company. Formerly known as OpenMail, it was founded in 2013. It describes itself as operating a "Responsive Acquisition Marketing Platform", and cites privacy as one of its principal foci, although it has been criticized for its influence on privacy-focused properties, including search engine Startpage.com. It is headquartered in Marina del Rey, California.

PRM vs SST — Head-to-Head

Bigger by revenue
PRM
PRM
2.0× larger
PRM
$102.8M
$51.9M
SST
Growing faster (revenue YoY)
PRM
PRM
+50.4% gap
PRM
19.2%
-31.3%
SST
Higher net margin
SST
SST
110.5% more per $
SST
-26.0%
-136.5%
PRM
Faster 2-yr revenue CAGR
PRM
PRM
Annualised
PRM
31.9%
-21.8%
SST

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
PRM
PRM
SST
SST
Revenue
$102.8M
$51.9M
Net Profit
$-140.2M
$-13.5M
Gross Margin
45.2%
41.0%
Operating Margin
-160.7%
-33.6%
Net Margin
-136.5%
-26.0%
Revenue YoY
19.2%
-31.3%
Net Profit YoY
-197.3%
4.8%
EPS (diluted)
$-0.89
$-3.58

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.

Revenue
PRM
PRM
SST
SST
Q4 25
$102.8M
$51.9M
Q3 25
$315.4M
$61.6M
Q2 25
$162.6M
$78.1M
Q1 25
$72.0M
$74.5M
Q4 24
$86.2M
$75.6M
Q3 24
$288.4M
$88.8M
Q2 24
$127.3M
$94.6M
Q1 24
$59.0M
$84.9M
Net Profit
PRM
PRM
SST
SST
Q4 25
$-140.2M
$-13.5M
Q3 25
$-90.7M
$-18.5M
Q2 25
$-32.2M
$-17.5M
Q1 25
$56.7M
$-15.9M
Q4 24
$144.2M
$-14.2M
Q3 24
$-89.2M
$-23.6M
Q2 24
$21.6M
$-26.4M
Q1 24
$-82.6M
$-10.5M
Gross Margin
PRM
PRM
SST
SST
Q4 25
45.2%
41.0%
Q3 25
63.1%
36.9%
Q2 25
62.4%
35.7%
Q1 25
39.1%
38.2%
Q4 24
48.6%
42.1%
Q3 24
62.8%
28.0%
Q2 24
57.6%
27.6%
Q1 24
35.1%
21.9%
Operating Margin
PRM
PRM
SST
SST
Q4 25
-160.7%
-33.6%
Q3 25
-27.7%
-25.3%
Q2 25
-16.1%
-20.4%
Q1 25
-17.6%
Q4 24
71.1%
-15.7%
Q3 24
-12.2%
-24.6%
Q2 24
35.4%
-30.8%
Q1 24
-126.8%
-30.4%
Net Margin
PRM
PRM
SST
SST
Q4 25
-136.5%
-26.0%
Q3 25
-28.7%
-30.1%
Q2 25
-19.8%
-22.4%
Q1 25
78.7%
-21.3%
Q4 24
167.2%
-18.7%
Q3 24
-30.9%
-26.6%
Q2 24
17.0%
-27.9%
Q1 24
-139.8%
-12.4%
EPS (diluted)
PRM
PRM
SST
SST
Q4 25
$-0.89
$-3.58
Q3 25
$-0.62
$-2.30
Q2 25
$-0.22
$-2.23
Q1 25
$0.36
$-0.21
Q4 24
$1.00
$-3.41
Q3 24
$-0.61
$-3.37
Q2 24
$0.14
$-3.80
Q1 24
$-0.57
$-0.16

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
PRM
PRM
SST
SST
Cash + ST InvestmentsLiquidity on hand
$325.9M
$86.9M
Total DebtLower is stronger
$669.1M
$305.1M
Stockholders' EquityBook value
$1.1B
$30.5M
Total Assets
$2.7B
$405.0M
Debt / EquityLower = less leverage
0.59×
10.01×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
PRM
PRM
SST
SST
Q4 25
$325.9M
$86.9M
Q3 25
$340.6M
$54.6M
Q2 25
$140.7M
$63.6M
Q1 25
$200.1M
$43.9M
Q4 24
$198.5M
$63.6M
Q3 24
$223.1M
$69.1M
Q2 24
$43.2M
$75.7M
Q1 24
$38.7M
$69.9M
Total Debt
PRM
PRM
SST
SST
Q4 25
$669.1M
$305.1M
Q3 25
$668.8M
$259.2M
Q2 25
$668.4M
$263.3M
Q1 25
$668.1M
$267.4M
Q4 24
$667.8M
$255.1M
Q3 24
$667.4M
$259.2M
Q2 24
$667.1M
$263.3M
Q1 24
$666.8M
$268.6M
Stockholders' Equity
PRM
PRM
SST
SST
Q4 25
$1.1B
$30.5M
Q3 25
$1.1B
$42.7M
Q2 25
$1.2B
$58.2M
Q1 25
$1.2B
$67.2M
Q4 24
$1.2B
$80.3M
Q3 24
$1.0B
$90.3M
Q2 24
$1.1B
$109.4M
Q1 24
$1.1B
$131.7M
Total Assets
PRM
PRM
SST
SST
Q4 25
$2.7B
$405.0M
Q3 25
$2.6B
$385.2M
Q2 25
$2.5B
$429.2M
Q1 25
$2.4B
$419.2M
Q4 24
$2.4B
$459.1M
Q3 24
$2.5B
$479.3M
Q2 24
$2.3B
$511.3M
Q1 24
$2.3B
$521.1M
Debt / Equity
PRM
PRM
SST
SST
Q4 25
0.59×
10.01×
Q3 25
0.60×
6.07×
Q2 25
0.57×
4.53×
Q1 25
0.55×
3.98×
Q4 24
0.58×
3.18×
Q3 24
0.67×
2.87×
Q2 24
0.62×
2.41×
Q1 24
0.63×
2.04×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
PRM
PRM
SST
SST
Operating Cash FlowLast quarter
$18.6M
$-10.6M
Free Cash FlowOCF − Capex
$11.6M
FCF MarginFCF / Revenue
11.3%
Capex IntensityCapex / Revenue
6.8%
0.0%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$208.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
PRM
PRM
SST
SST
Q4 25
$18.6M
$-10.6M
Q3 25
$198.7M
$-2.1M
Q2 25
$-2.9M
$24.5M
Q1 25
$23.7M
$-15.9M
Q4 24
$-6.0M
$772.0K
Q3 24
$183.0M
$-5.0K
Q2 24
$8.6M
$10.0M
Q1 24
$2.8M
$-16.0M
Free Cash Flow
PRM
PRM
SST
SST
Q4 25
$11.6M
Q3 25
$193.6M
Q2 25
$-15.6M
Q1 25
$18.9M
$-16.0M
Q4 24
$-12.4M
Q3 24
$179.1M
$-36.0K
Q2 24
$5.0M
Q1 24
$1.2M
FCF Margin
PRM
PRM
SST
SST
Q4 25
11.3%
Q3 25
61.4%
Q2 25
-9.6%
Q1 25
26.3%
-21.5%
Q4 24
-14.4%
Q3 24
62.1%
-0.0%
Q2 24
3.9%
Q1 24
2.1%
Capex Intensity
PRM
PRM
SST
SST
Q4 25
6.8%
0.0%
Q3 25
1.6%
0.0%
Q2 25
7.8%
0.0%
Q1 25
6.7%
0.1%
Q4 24
7.5%
0.0%
Q3 24
1.3%
0.0%
Q2 24
2.9%
0.0%
Q1 24
2.6%
0.0%
Cash Conversion
PRM
PRM
SST
SST
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

PRM
PRM

Products$87.7M85%
Service And Other$14.8M14%

SST
SST

Segment breakdown not available.

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