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Side-by-side financial comparison of Eos Energy Enterprises, Inc. (EOSE) and NAPCO SECURITY TECHNOLOGIES, INC (NSSC). Click either name above to swap in a different company.

Eos Energy Enterprises, Inc. is the larger business by last-quarter revenue ($58.0M vs $48.2M, roughly 1.2× NAPCO SECURITY TECHNOLOGIES, INC). NAPCO SECURITY TECHNOLOGIES, INC runs the higher net margin — 28.0% vs -207.7%, a 235.7% gap on every dollar of revenue. On growth, Eos Energy Enterprises, Inc. posted the faster year-over-year revenue change (699.6% vs 12.2%). NAPCO SECURITY TECHNOLOGIES, INC produced more free cash flow last quarter ($14.5M vs $-75.2M).

Eos Energy Enterprises, Inc. is an energy storage solutions provider that designs, produces and deploys safe long-duration zinc-based battery systems. It serves utility, commercial, industrial and microgrid customers across North America, Europe and Asia, supporting grid stability and renewable energy integration.

Napco Security Technologies, Inc. was set up in 1969 and now is based in Amityville, New York. The company focuses on security products, such as electronic locking devices, alarm systems, and building access control systems. The company was formerly known as Napco Security Systems, Inc.

EOSE vs NSSC — Head-to-Head

Bigger by revenue
EOSE
EOSE
1.2× larger
EOSE
$58.0M
$48.2M
NSSC
Growing faster (revenue YoY)
EOSE
EOSE
+687.4% gap
EOSE
699.6%
12.2%
NSSC
Higher net margin
NSSC
NSSC
235.7% more per $
NSSC
28.0%
-207.7%
EOSE
More free cash flow
NSSC
NSSC
$89.8M more FCF
NSSC
$14.5M
$-75.2M
EOSE

Income Statement — Q4 FY2025 vs Q2 FY2026

Metric
EOSE
EOSE
NSSC
NSSC
Revenue
$58.0M
$48.2M
Net Profit
$-120.5M
$13.5M
Gross Margin
-93.8%
58.6%
Operating Margin
-140.1%
30.6%
Net Margin
-207.7%
28.0%
Revenue YoY
699.6%
12.2%
Net Profit YoY
55.1%
29.0%
EPS (diluted)
$-0.53
$0.38

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
EOSE
EOSE
NSSC
NSSC
Q4 25
$58.0M
$48.2M
Q3 25
$30.5M
$49.2M
Q2 25
$15.2M
$50.7M
Q1 25
$10.5M
$44.0M
Q4 24
$7.3M
$42.9M
Q3 24
$44.0M
Q2 24
$50.3M
Q1 24
$49.3M
Net Profit
EOSE
EOSE
NSSC
NSSC
Q4 25
$-120.5M
$13.5M
Q3 25
$-641.4M
$12.2M
Q2 25
$-222.9M
$11.6M
Q1 25
$15.1M
$10.1M
Q4 24
$-268.1M
$10.5M
Q3 24
$11.2M
Q2 24
$13.5M
Q1 24
$13.2M
Gross Margin
EOSE
EOSE
NSSC
NSSC
Q4 25
-93.8%
58.6%
Q3 25
-111.2%
56.6%
Q2 25
-203.2%
52.8%
Q1 25
-234.7%
57.2%
Q4 24
-324.0%
57.0%
Q3 24
55.9%
Q2 24
55.3%
Q1 24
53.8%
Operating Margin
EOSE
EOSE
NSSC
NSSC
Q4 25
-140.1%
30.6%
Q3 25
-200.6%
27.7%
Q2 25
-419.1%
23.8%
Q1 25
-506.2%
25.4%
Q4 24
-712.8%
26.0%
Q3 24
26.9%
Q2 24
27.7%
Q1 24
29.4%
Net Margin
EOSE
EOSE
NSSC
NSSC
Q4 25
-207.7%
28.0%
Q3 25
-2102.1%
24.7%
Q2 25
-1463.2%
22.9%
Q1 25
144.7%
23.0%
Q4 24
-3696.7%
24.4%
Q3 24
25.4%
Q2 24
26.9%
Q1 24
26.8%
EPS (diluted)
EOSE
EOSE
NSSC
NSSC
Q4 25
$-0.53
$0.38
Q3 25
$-4.91
$0.34
Q2 25
$-1.05
$0.33
Q1 25
$-0.20
$0.28
Q4 24
$-2.30
$0.28
Q3 24
$0.30
Q2 24
$0.36
Q1 24
$0.36

Balance Sheet & Financial Strength

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

Metric
EOSE
EOSE
NSSC
NSSC
Cash + ST InvestmentsLiquidity on hand
$568.0M
$115.4M
Total DebtLower is stronger
$813.3M
Stockholders' EquityBook value
$-2.2B
$184.8M
Total Assets
$885.2M
$212.8M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
EOSE
EOSE
NSSC
NSSC
Q4 25
$568.0M
$115.4M
Q3 25
$58.7M
$105.8M
Q2 25
$120.2M
$99.2M
Q1 25
$82.6M
$89.3M
Q4 24
$74.3M
$99.2M
Q3 24
$91.3M
Q2 24
$70.7M
Q1 24
$60.9M
Total Debt
EOSE
EOSE
NSSC
NSSC
Q4 25
$813.3M
Q3 25
$448.5M
Q2 25
$445.3M
Q1 25
$325.5M
Q4 24
$316.9M
Q3 24
Q2 24
Q1 24
Stockholders' Equity
EOSE
EOSE
NSSC
NSSC
Q4 25
$-2.2B
$184.8M
Q3 25
$-2.3B
$176.1M
Q2 25
$-1.1B
$168.6M
Q1 25
$-942.2M
$161.5M
Q4 24
$-1.1B
$174.2M
Q3 24
$178.6M
Q2 24
$178.9M
Q1 24
$168.2M
Total Assets
EOSE
EOSE
NSSC
NSSC
Q4 25
$885.2M
$212.8M
Q3 25
$328.2M
$206.0M
Q2 25
$361.0M
$198.1M
Q1 25
$263.3M
$190.9M
Q4 24
$260.3M
$202.7M
Q3 24
$209.9M
Q2 24
$207.8M
Q1 24
$194.8M

Cash Flow & Capital Efficiency

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

Metric
EOSE
EOSE
NSSC
NSSC
Operating Cash FlowLast quarter
$-50.3M
$15.1M
Free Cash FlowOCF − Capex
$-75.2M
$14.5M
FCF MarginFCF / Revenue
-129.7%
30.1%
Capex IntensityCapex / Revenue
43.1%
1.2%
Cash ConversionOCF / Net Profit
1.12×
TTM Free Cash FlowTrailing 4 quarters
$-265.0M
$53.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
EOSE
EOSE
NSSC
NSSC
Q4 25
$-50.3M
$15.1M
Q3 25
$-65.9M
$11.6M
Q2 25
$-66.1M
$14.6M
Q1 25
$-28.9M
$13.4M
Q4 24
$-42.7M
$13.5M
Q3 24
$12.0M
Q2 24
$14.3M
Q1 24
$12.3M
Free Cash Flow
EOSE
EOSE
NSSC
NSSC
Q4 25
$-75.2M
$14.5M
Q3 25
$-82.7M
$11.4M
Q2 25
$-73.2M
$14.4M
Q1 25
$-33.8M
$13.3M
Q4 24
$-55.8M
$12.4M
Q3 24
$11.3M
Q2 24
$13.8M
Q1 24
$12.0M
FCF Margin
EOSE
EOSE
NSSC
NSSC
Q4 25
-129.7%
30.1%
Q3 25
-271.1%
23.3%
Q2 25
-480.2%
28.4%
Q1 25
-323.6%
30.3%
Q4 24
-769.1%
28.8%
Q3 24
25.8%
Q2 24
27.4%
Q1 24
24.3%
Capex Intensity
EOSE
EOSE
NSSC
NSSC
Q4 25
43.1%
1.2%
Q3 25
55.2%
0.4%
Q2 25
46.2%
0.5%
Q1 25
47.0%
0.1%
Q4 24
180.6%
2.6%
Q3 24
1.5%
Q2 24
1.1%
Q1 24
0.7%
Cash Conversion
EOSE
EOSE
NSSC
NSSC
Q4 25
1.12×
Q3 25
0.96×
Q2 25
1.26×
Q1 25
-1.91×
1.32×
Q4 24
1.29×
Q3 24
1.08×
Q2 24
1.06×
Q1 24
0.94×

Financial Flow Comparison

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

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