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Side-by-side financial comparison of Ceribell, Inc. (CBLL) and NATURAL GAS SERVICES GROUP INC (NGS). Click either name above to swap in a different company.

NATURAL GAS SERVICES GROUP INC is the larger business by last-quarter revenue ($46.1M vs $24.8M, roughly 1.9× Ceribell, Inc.). NATURAL GAS SERVICES GROUP INC runs the higher net margin — 8.9% vs -54.6%, a 63.5% gap on every dollar of revenue. Ceribell, Inc. produced more free cash flow last quarter ($-11.0M vs $-20.7M).

Ceribell, Inc. develops and commercializes innovative portable neurodiagnostic medical devices, focused on rapid non-invasive electroencephalogram (EEG) solutions for seizure detection. Its core products serve hospital emergency departments, intensive care units, and long-term care facilities, with primary markets across North America and ongoing global expansion efforts.

Southern Company Gas, formerly AGL Resources, is an American Fortune 500 energy services holding company headquartered in Atlanta, Georgia. The company's operations consist of natural gas distribution, wholesale services, retail operations, and midstream operations. Southern Company Gas is one of the largest natural gas distribution companies in the United States. The company serves approximately 4.5 million utility customers through its regulated distribution subsidiaries across four states....

CBLL vs NGS — Head-to-Head

Bigger by revenue
NGS
NGS
1.9× larger
NGS
$46.1M
$24.8M
CBLL
Higher net margin
NGS
NGS
63.5% more per $
NGS
8.9%
-54.6%
CBLL
More free cash flow
CBLL
CBLL
$9.7M more FCF
CBLL
$-11.0M
$-20.7M
NGS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
CBLL
CBLL
NGS
NGS
Revenue
$24.8M
$46.1M
Net Profit
$-13.5M
$4.1M
Gross Margin
87.3%
Operating Margin
-58.9%
15.4%
Net Margin
-54.6%
8.9%
Revenue YoY
13.5%
Net Profit YoY
43.2%
EPS (diluted)
$-0.35
$0.32

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
CBLL
CBLL
NGS
NGS
Q4 25
$24.8M
$46.1M
Q3 25
$22.6M
$43.4M
Q2 25
$21.2M
$41.4M
Q1 25
$20.5M
$41.4M
Q4 24
$40.7M
Q3 24
$17.2M
Net Profit
CBLL
CBLL
NGS
NGS
Q4 25
$-13.5M
$4.1M
Q3 25
$-13.5M
$5.8M
Q2 25
$-13.6M
$5.2M
Q1 25
$-12.8M
$4.9M
Q4 24
$2.9M
Q3 24
$-10.4M
Gross Margin
CBLL
CBLL
NGS
NGS
Q4 25
87.3%
Q3 25
88.3%
Q2 25
88.1%
Q1 25
87.9%
Q4 24
Q3 24
87.3%
Operating Margin
CBLL
CBLL
NGS
NGS
Q4 25
-58.9%
15.4%
Q3 25
-64.8%
24.8%
Q2 25
-70.5%
24.0%
Q1 25
-69.3%
23.0%
Q4 24
14.9%
Q3 24
-57.8%
Net Margin
CBLL
CBLL
NGS
NGS
Q4 25
-54.6%
8.9%
Q3 25
-59.6%
13.3%
Q2 25
-64.4%
12.5%
Q1 25
-62.4%
11.7%
Q4 24
7.0%
Q3 24
-60.6%
EPS (diluted)
CBLL
CBLL
NGS
NGS
Q4 25
$-0.35
$0.32
Q3 25
$-0.37
$0.46
Q2 25
$-0.38
$0.41
Q1 25
$-0.36
$0.38
Q4 24
$0.22
Q3 24
$-1.85

Balance Sheet & Financial Strength

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

Metric
CBLL
CBLL
NGS
NGS
Cash + ST InvestmentsLiquidity on hand
$159.3M
Total DebtLower is stronger
Stockholders' EquityBook value
$155.3M
$274.7M
Total Assets
$195.8M
$586.8M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CBLL
CBLL
NGS
NGS
Q4 25
$159.3M
Q3 25
$168.5M
Q2 25
$177.4M
$325.0K
Q1 25
$182.7M
$2.1M
Q4 24
$2.1M
Q3 24
$14.1M
Stockholders' Equity
CBLL
CBLL
NGS
NGS
Q4 25
$155.3M
$274.7M
Q3 25
$164.1M
$271.4M
Q2 25
$172.2M
$266.2M
Q1 25
$180.9M
$260.3M
Q4 24
$255.1M
Q3 24
$-136.0M
Total Assets
CBLL
CBLL
NGS
NGS
Q4 25
$195.8M
$586.8M
Q3 25
$199.5M
$562.3M
Q2 25
$207.7M
$525.5M
Q1 25
$213.5M
$501.7M
Q4 24
$492.5M
Q3 24
$47.1M

Cash Flow & Capital Efficiency

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

Metric
CBLL
CBLL
NGS
NGS
Operating Cash FlowLast quarter
$-10.8M
$13.9M
Free Cash FlowOCF − Capex
$-11.0M
$-20.7M
FCF MarginFCF / Revenue
-44.2%
-44.8%
Capex IntensityCapex / Revenue
0.7%
74.9%
Cash ConversionOCF / Net Profit
3.38×
TTM Free Cash FlowTrailing 4 quarters
$-41.6M
$-58.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CBLL
CBLL
NGS
NGS
Q4 25
$-10.8M
$13.9M
Q3 25
$-11.1M
$16.8M
Q2 25
$-7.5M
$11.0M
Q1 25
$-11.4M
$21.3M
Q4 24
$9.4M
Q3 24
Free Cash Flow
CBLL
CBLL
NGS
NGS
Q4 25
$-11.0M
$-20.7M
Q3 25
$-11.5M
$-25.1M
Q2 25
$-7.6M
$-14.8M
Q1 25
$-11.6M
$2.0M
Q4 24
$-5.1M
Q3 24
FCF Margin
CBLL
CBLL
NGS
NGS
Q4 25
-44.2%
-44.8%
Q3 25
-50.8%
-57.7%
Q2 25
-35.9%
-35.8%
Q1 25
-56.4%
4.9%
Q4 24
-12.6%
Q3 24
Capex Intensity
CBLL
CBLL
NGS
NGS
Q4 25
0.7%
74.9%
Q3 25
1.6%
96.5%
Q2 25
0.3%
62.4%
Q1 25
0.7%
46.5%
Q4 24
35.8%
Q3 24
Cash Conversion
CBLL
CBLL
NGS
NGS
Q4 25
3.38×
Q3 25
2.90×
Q2 25
2.12×
Q1 25
4.38×
Q4 24
3.29×
Q3 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

CBLL
CBLL

Products$18.8M76%
Subscription$6.0M24%

NGS
NGS

Segment breakdown not available.

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