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Side-by-side financial comparison of BigBear.ai Holdings, Inc. (BBAI) and System1, Inc. (SST). Click either name above to swap in a different company.

System1, Inc. is the larger business by last-quarter revenue ($51.9M vs $27.3M, roughly 1.9× BigBear.ai Holdings, Inc.). On growth, System1, Inc. posted the faster year-over-year revenue change (-31.3% vs -37.7%). Over the past eight quarters, BigBear.ai Holdings, Inc.'s revenue compounded faster (-9.2% CAGR vs -21.8%).

BigBear.ai Holdings, Inc. develops and delivers artificial intelligence-powered decision support and analytics solutions. Its core offerings cover predictive analytics, supply chain optimization, and operational intelligence platforms, serving key segments including national defense, intelligence agencies, and commercial enterprise clients primarily across North America, helping customers improve operational efficiency and mitigate risks.

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.

BBAI vs SST — Head-to-Head

Bigger by revenue
SST
SST
1.9× larger
SST
$51.9M
$27.3M
BBAI
Growing faster (revenue YoY)
SST
SST
+6.4% gap
SST
-31.3%
-37.7%
BBAI
Faster 2-yr revenue CAGR
BBAI
BBAI
Annualised
BBAI
-9.2%
-21.8%
SST

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
BBAI
BBAI
SST
SST
Revenue
$27.3M
$51.9M
Net Profit
$-13.5M
Gross Margin
20.3%
41.0%
Operating Margin
-295.0%
-33.6%
Net Margin
-26.0%
Revenue YoY
-37.7%
-31.3%
Net Profit YoY
4.8%
EPS (diluted)
$0.17
$-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
BBAI
BBAI
SST
SST
Q4 25
$27.3M
$51.9M
Q3 25
$33.1M
$61.6M
Q2 25
$32.5M
$78.1M
Q1 25
$34.8M
$74.5M
Q4 24
$43.8M
$75.6M
Q3 24
$41.5M
$88.8M
Q2 24
$39.8M
$94.6M
Q1 24
$33.1M
$84.9M
Net Profit
BBAI
BBAI
SST
SST
Q4 25
$-13.5M
Q3 25
$2.5M
$-18.5M
Q2 25
$-228.6M
$-17.5M
Q1 25
$-62.0M
$-15.9M
Q4 24
$-14.2M
Q3 24
$-15.1M
$-23.6M
Q2 24
$-14.4M
$-26.4M
Q1 24
$-127.8M
$-10.5M
Gross Margin
BBAI
BBAI
SST
SST
Q4 25
20.3%
41.0%
Q3 25
22.4%
36.9%
Q2 25
25.0%
35.7%
Q1 25
21.3%
38.2%
Q4 24
37.4%
42.1%
Q3 24
25.9%
28.0%
Q2 24
27.8%
27.6%
Q1 24
21.1%
21.9%
Operating Margin
BBAI
BBAI
SST
SST
Q4 25
-295.0%
-33.6%
Q3 25
-66.0%
-25.3%
Q2 25
-278.1%
-20.4%
Q1 25
-61.0%
-17.6%
Q4 24
-18.6%
-15.7%
Q3 24
-25.4%
-24.6%
Q2 24
-41.9%
-30.8%
Q1 24
-296.1%
-30.4%
Net Margin
BBAI
BBAI
SST
SST
Q4 25
-26.0%
Q3 25
7.6%
-30.1%
Q2 25
-704.0%
-22.4%
Q1 25
-178.3%
-21.3%
Q4 24
-18.7%
Q3 24
-36.5%
-26.6%
Q2 24
-36.3%
-27.9%
Q1 24
-385.8%
-12.4%
EPS (diluted)
BBAI
BBAI
SST
SST
Q4 25
$0.17
$-3.58
Q3 25
$-0.03
$-2.30
Q2 25
$-0.71
$-2.23
Q1 25
$-0.25
$-0.21
Q4 24
$-0.47
$-3.41
Q3 24
$-0.06
$-3.37
Q2 24
$-0.06
$-3.80
Q1 24
$-0.68
$-0.16

Balance Sheet & Financial Strength

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

Metric
BBAI
BBAI
SST
SST
Cash + ST InvestmentsLiquidity on hand
$87.1M
$86.9M
Total DebtLower is stronger
$107.0M
$305.1M
Stockholders' EquityBook value
$611.9M
$30.5M
Total Assets
$894.5M
$405.0M
Debt / EquityLower = less leverage
0.17×
10.01×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
BBAI
BBAI
SST
SST
Q4 25
$87.1M
$86.9M
Q3 25
$456.6M
$54.6M
Q2 25
$390.8M
$63.6M
Q1 25
$107.6M
$43.9M
Q4 24
$50.1M
$63.6M
Q3 24
$65.6M
$69.1M
Q2 24
$72.3M
$75.7M
Q1 24
$81.4M
$69.9M
Total Debt
BBAI
BBAI
SST
SST
Q4 25
$107.0M
$305.1M
Q3 25
$104.9M
$259.2M
Q2 25
$103.0M
$263.3M
Q1 25
$101.4M
$267.4M
Q4 24
$136.2M
$255.1M
Q3 24
$195.7M
$259.2M
Q2 24
$195.7M
$263.3M
Q1 24
$195.6M
$268.6M
Stockholders' Equity
BBAI
BBAI
SST
SST
Q4 25
$611.9M
$30.5M
Q3 25
$610.0M
$42.7M
Q2 25
$266.6M
$58.2M
Q1 25
$197.8M
$67.2M
Q4 24
$-3.7M
$80.3M
Q3 24
$127.5M
$90.3M
Q2 24
$134.7M
$109.4M
Q1 24
$143.2M
$131.7M
Total Assets
BBAI
BBAI
SST
SST
Q4 25
$894.5M
$405.0M
Q3 25
$919.8M
$385.2M
Q2 25
$599.4M
$429.2M
Q1 25
$396.3M
$419.2M
Q4 24
$343.8M
$459.1M
Q3 24
$354.1M
$479.3M
Q2 24
$360.9M
$511.3M
Q1 24
$377.6M
$521.1M
Debt / Equity
BBAI
BBAI
SST
SST
Q4 25
0.17×
10.01×
Q3 25
0.17×
6.07×
Q2 25
0.39×
4.53×
Q1 25
0.51×
3.98×
Q4 24
3.18×
Q3 24
1.54×
2.87×
Q2 24
1.45×
2.41×
Q1 24
1.37×
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
BBAI
BBAI
SST
SST
Operating Cash FlowLast quarter
$-21.8M
$-10.6M
Free Cash FlowOCF − Capex
$-22.1M
FCF MarginFCF / Revenue
-80.9%
Capex IntensityCapex / Revenue
0.9%
0.0%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-42.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BBAI
BBAI
SST
SST
Q4 25
$-21.8M
$-10.6M
Q3 25
$-9.6M
$-2.1M
Q2 25
$-3.9M
$24.5M
Q1 25
$-6.7M
$-15.9M
Q4 24
$-14.8M
$772.0K
Q3 24
$-1.9M
$-5.0K
Q2 24
$-7.1M
$10.0M
Q1 24
$-14.4M
$-16.0M
Free Cash Flow
BBAI
BBAI
SST
SST
Q4 25
$-22.1M
Q3 25
$-9.8M
Q2 25
$-3.9M
Q1 25
$-6.7M
$-16.0M
Q4 24
$-15.0M
Q3 24
$-2.0M
$-36.0K
Q2 24
$-7.2M
Q1 24
$-14.4M
FCF Margin
BBAI
BBAI
SST
SST
Q4 25
-80.9%
Q3 25
-29.5%
Q2 25
-11.9%
Q1 25
-19.4%
-21.5%
Q4 24
-34.2%
Q3 24
-4.9%
-0.0%
Q2 24
-18.1%
Q1 24
-43.5%
Capex Intensity
BBAI
BBAI
SST
SST
Q4 25
0.9%
0.0%
Q3 25
0.6%
0.0%
Q2 25
0.0%
0.0%
Q1 25
0.2%
0.1%
Q4 24
0.4%
0.0%
Q3 24
0.3%
0.0%
Q2 24
0.3%
0.0%
Q1 24
0.1%
0.0%
Cash Conversion
BBAI
BBAI
SST
SST
Q4 25
Q3 25
-3.80×
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

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