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Side-by-side financial comparison of ESCO TECHNOLOGIES INC (ESE) and PLUG POWER INC (PLUG). Click either name above to swap in a different company.

ESCO TECHNOLOGIES INC is the larger business by last-quarter revenue ($289.7M vs $225.2M, roughly 1.3× PLUG POWER INC). ESCO TECHNOLOGIES INC runs the higher net margin — 9.9% vs -375.6%, a 385.5% gap on every dollar of revenue. On growth, PLUG POWER INC posted the faster year-over-year revenue change (17.6% vs 17.3%). ESCO TECHNOLOGIES INC produced more free cash flow last quarter ($63.0M vs $-153.0M). Over the past eight quarters, PLUG POWER INC's revenue compounded faster (36.8% CAGR vs 7.8%).

Esco is a Singaporean brand that develops, manufactures, and sells products and services for laboratories.

Plug Power Inc. is an American company engaged in the development of hydrogen fuel cell and electrolyzer systems that replace conventional batteries in equipment and vehicles powered by electricity. The company is headquartered in Slingerlands, New York, and has facilities in Spokane, Washington, and Rochester, New York.

ESE vs PLUG — Head-to-Head

Bigger by revenue
ESE
ESE
1.3× larger
ESE
$289.7M
$225.2M
PLUG
Growing faster (revenue YoY)
PLUG
PLUG
+0.4% gap
PLUG
17.6%
17.3%
ESE
Higher net margin
ESE
ESE
385.5% more per $
ESE
9.9%
-375.6%
PLUG
More free cash flow
ESE
ESE
$216.0M more FCF
ESE
$63.0M
$-153.0M
PLUG
Faster 2-yr revenue CAGR
PLUG
PLUG
Annualised
PLUG
36.8%
7.8%
ESE

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
ESE
ESE
PLUG
PLUG
Revenue
$289.7M
$225.2M
Net Profit
$28.7M
$-846.0M
Gross Margin
41.4%
2.4%
Operating Margin
13.2%
-338.9%
Net Margin
9.9%
-375.6%
Revenue YoY
17.3%
17.6%
Net Profit YoY
22.2%
36.7%
EPS (diluted)
$1.11
$-0.70

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
ESE
ESE
PLUG
PLUG
Q4 25
$289.7M
$225.2M
Q3 25
$286.5M
$177.1M
Q2 25
$296.3M
$174.0M
Q1 25
$265.5M
$133.7M
Q4 24
$247.0M
$191.5M
Q3 24
$298.5M
$173.7M
Q2 24
$260.8M
$143.3M
Q1 24
$249.1M
$120.3M
Net Profit
ESE
ESE
PLUG
PLUG
Q4 25
$28.7M
$-846.0M
Q3 25
$218.7M
$-361.9M
Q2 25
$26.1M
$-227.1M
Q1 25
$31.0M
$-196.7M
Q4 24
$23.5M
$-1.3B
Q3 24
$34.3M
$-211.2M
Q2 24
$29.2M
$-262.3M
Q1 24
$23.2M
$-295.8M
Gross Margin
ESE
ESE
PLUG
PLUG
Q4 25
41.4%
2.4%
Q3 25
45.9%
-67.9%
Q2 25
41.2%
-30.7%
Q1 25
41.1%
-55.3%
Q4 24
39.8%
-122.5%
Q3 24
40.1%
-57.6%
Q2 24
39.6%
-91.6%
Q1 24
38.8%
-132.3%
Operating Margin
ESE
ESE
PLUG
PLUG
Q4 25
13.2%
-338.9%
Q3 25
17.2%
-197.0%
Q2 25
11.2%
-101.7%
Q1 25
15.3%
-133.5%
Q4 24
11.4%
-678.7%
Q3 24
14.8%
-124.4%
Q2 24
14.3%
-170.7%
Q1 24
11.7%
-215.7%
Net Margin
ESE
ESE
PLUG
PLUG
Q4 25
9.9%
-375.6%
Q3 25
76.3%
-204.4%
Q2 25
8.8%
-130.5%
Q1 25
11.7%
-147.1%
Q4 24
9.5%
-697.5%
Q3 24
11.5%
-121.5%
Q2 24
11.2%
-183.0%
Q1 24
9.3%
-245.9%
EPS (diluted)
ESE
ESE
PLUG
PLUG
Q4 25
$1.11
$-0.70
Q3 25
$8.43
$-0.31
Q2 25
$1.01
$-0.20
Q1 25
$1.20
$-0.21
Q4 24
$0.91
$-1.61
Q3 24
$1.32
$-0.25
Q2 24
$1.13
$-0.36
Q1 24
$0.90
$-0.46

Balance Sheet & Financial Strength

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

Metric
ESE
ESE
PLUG
PLUG
Cash + ST InvestmentsLiquidity on hand
$103.8M
$368.5M
Total DebtLower is stronger
$145.5M
Stockholders' EquityBook value
$1.6B
$978.1M
Total Assets
$2.4B
$2.6B
Debt / EquityLower = less leverage
0.09×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ESE
ESE
PLUG
PLUG
Q4 25
$103.8M
$368.5M
Q3 25
$101.3M
$165.9M
Q2 25
$78.7M
$140.7M
Q1 25
$57.4M
$295.8M
Q4 24
$71.3M
$205.7M
Q3 24
$66.0M
$93.9M
Q2 24
$63.0M
$62.4M
Q1 24
$59.4M
$172.9M
Total Debt
ESE
ESE
PLUG
PLUG
Q4 25
$145.5M
Q3 25
$186.0M
Q2 25
$525.0M
Q1 25
$88.0M
Q4 24
$112.0M
Q3 24
$122.0M
$3.9M
Q2 24
$173.0M
$3.7M
Q1 24
$191.0M
$3.8M
Stockholders' Equity
ESE
ESE
PLUG
PLUG
Q4 25
$1.6B
$978.1M
Q3 25
$1.5B
$1.4B
Q2 25
$1.3B
$1.7B
Q1 25
$1.3B
$1.9B
Q4 24
$1.2B
$1.7B
Q3 24
$1.2B
$3.0B
Q2 24
$1.2B
$3.0B
Q1 24
$1.2B
$2.9B
Total Assets
ESE
ESE
PLUG
PLUG
Q4 25
$2.4B
$2.6B
Q3 25
$2.4B
$3.1B
Q2 25
$2.5B
$3.4B
Q1 25
$1.8B
$3.6B
Q4 24
$1.8B
$3.6B
Q3 24
$1.8B
$4.7B
Q2 24
$1.8B
$4.8B
Q1 24
$1.8B
$4.8B
Debt / Equity
ESE
ESE
PLUG
PLUG
Q4 25
0.09×
Q3 25
0.12×
Q2 25
0.40×
Q1 25
0.07×
Q4 24
0.09×
Q3 24
0.10×
0.00×
Q2 24
0.14×
0.00×
Q1 24
0.16×
0.00×

Cash Flow & Capital Efficiency

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

Metric
ESE
ESE
PLUG
PLUG
Operating Cash FlowLast quarter
$68.9M
$-148.6M
Free Cash FlowOCF − Capex
$63.0M
$-153.0M
FCF MarginFCF / Revenue
21.7%
-67.9%
Capex IntensityCapex / Revenue
2.0%
1.9%
Cash ConversionOCF / Net Profit
2.40×
TTM Free Cash FlowTrailing 4 quarters
$239.6M
$-647.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ESE
ESE
PLUG
PLUG
Q4 25
$68.9M
$-148.6M
Q3 25
$109.9M
$-89.8M
Q2 25
$73.7M
$-191.8M
Q1 25
$24.1M
$-105.6M
Q4 24
$34.2M
$-131.2M
Q3 24
$72.1M
$-174.9M
Q2 24
$36.2M
$-254.7M
Q1 24
$10.5M
$-167.7M
Free Cash Flow
ESE
ESE
PLUG
PLUG
Q4 25
$63.0M
$-153.0M
Q3 25
$97.8M
$-117.5M
Q2 25
$64.9M
$-230.4M
Q1 25
$14.0M
$-146.0M
Q4 24
$29.0M
$-165.2M
Q3 24
$60.9M
$-234.2M
Q2 24
$27.6M
$-356.0M
Q1 24
$2.0M
$-260.3M
FCF Margin
ESE
ESE
PLUG
PLUG
Q4 25
21.7%
-67.9%
Q3 25
34.1%
-66.4%
Q2 25
21.9%
-132.5%
Q1 25
5.3%
-109.2%
Q4 24
11.7%
-86.3%
Q3 24
20.4%
-134.8%
Q2 24
10.6%
-248.4%
Q1 24
0.8%
-216.5%
Capex Intensity
ESE
ESE
PLUG
PLUG
Q4 25
2.0%
1.9%
Q3 25
4.2%
15.6%
Q2 25
3.0%
22.2%
Q1 25
3.8%
30.3%
Q4 24
2.1%
17.7%
Q3 24
3.8%
34.1%
Q2 24
3.3%
70.7%
Q1 24
3.4%
77.0%
Cash Conversion
ESE
ESE
PLUG
PLUG
Q4 25
2.40×
Q3 25
0.50×
Q2 25
2.83×
Q1 25
0.78×
Q4 24
1.46×
Q3 24
2.10×
Q2 24
1.24×
Q1 24
0.45×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ESE
ESE

US Government$98.0M34%
Utility Solutions Group$87.5M30%
RF Shielding And Test$58.3M20%
Commercial$45.8M16%
Related Party$1.3M0%

PLUG
PLUG

Sales Of Equipment And Related Infrastructure$111.6M50%
Services Performed On Fuel Cell Systems And Related Infrastructure$41.5M18%
Power Purchase Agreements$36.1M16%
Sale Of Cryogenic Equipment$20.0M9%
Sales Of Fuel Cell Systems$11.2M5%
Other$4.8M2%

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