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

MESA LABORATORIES INC is the larger business by last-quarter revenue ($65.1M vs $58.0M, roughly 1.1× Eos Energy Enterprises, Inc.). MESA LABORATORIES INC runs the higher net margin — 5.6% vs -207.7%, a 213.3% gap on every dollar of revenue. On growth, Eos Energy Enterprises, Inc. posted the faster year-over-year revenue change (699.6% vs 3.6%). MESA LABORATORIES INC produced more free cash flow last quarter ($18.0M 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.

Mesa Laboratories Inc. develops, manufactures and sells professional quality control, calibration and monitoring instruments as well as related supporting services. Its core offerings cater to healthcare, pharmaceutical, food and beverage, industrial hygiene and environmental testing markets, helping global clients meet regulatory compliance and operational safety requirements.

EOSE vs MLAB — Head-to-Head

Bigger by revenue
MLAB
MLAB
1.1× larger
MLAB
$65.1M
$58.0M
EOSE
Growing faster (revenue YoY)
EOSE
EOSE
+696.0% gap
EOSE
699.6%
3.6%
MLAB
Higher net margin
MLAB
MLAB
213.3% more per $
MLAB
5.6%
-207.7%
EOSE
More free cash flow
MLAB
MLAB
$93.3M more FCF
MLAB
$18.0M
$-75.2M
EOSE

Income Statement — Q4 FY2025 vs Q3 FY2026

Metric
EOSE
EOSE
MLAB
MLAB
Revenue
$58.0M
$65.1M
Net Profit
$-120.5M
$3.6M
Gross Margin
-93.8%
64.2%
Operating Margin
-140.1%
12.2%
Net Margin
-207.7%
5.6%
Revenue YoY
699.6%
3.6%
Net Profit YoY
55.1%
316.6%
EPS (diluted)
$-0.53
$0.65

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
MLAB
MLAB
Q4 25
$58.0M
$65.1M
Q3 25
$30.5M
$60.7M
Q2 25
$15.2M
$59.5M
Q1 25
$10.5M
$62.1M
Q4 24
$7.3M
$62.8M
Q3 24
$57.8M
Q2 24
$58.2M
Q1 24
$58.9M
Net Profit
EOSE
EOSE
MLAB
MLAB
Q4 25
$-120.5M
$3.6M
Q3 25
$-641.4M
$2.5M
Q2 25
$-222.9M
$4.7M
Q1 25
$15.1M
$-7.1M
Q4 24
$-268.1M
$-1.7M
Q3 24
$3.4M
Q2 24
$3.4M
Q1 24
$-254.6M
Gross Margin
EOSE
EOSE
MLAB
MLAB
Q4 25
-93.8%
64.2%
Q3 25
-111.2%
61.5%
Q2 25
-203.2%
62.0%
Q1 25
-234.7%
61.8%
Q4 24
-324.0%
63.3%
Q3 24
61.3%
Q2 24
64.0%
Q1 24
62.1%
Operating Margin
EOSE
EOSE
MLAB
MLAB
Q4 25
-140.1%
12.2%
Q3 25
-200.6%
7.8%
Q2 25
-419.1%
5.1%
Q1 25
-506.2%
2.4%
Q4 24
-712.8%
9.2%
Q3 24
6.1%
Q2 24
9.6%
Q1 24
-460.6%
Net Margin
EOSE
EOSE
MLAB
MLAB
Q4 25
-207.7%
5.6%
Q3 25
-2102.1%
4.1%
Q2 25
-1463.2%
8.0%
Q1 25
144.7%
-11.4%
Q4 24
-3696.7%
-2.7%
Q3 24
5.9%
Q2 24
5.8%
Q1 24
-432.2%
EPS (diluted)
EOSE
EOSE
MLAB
MLAB
Q4 25
$-0.53
$0.65
Q3 25
$-4.91
$0.45
Q2 25
$-1.05
$0.85
Q1 25
$-0.20
$-1.30
Q4 24
$-2.30
$-0.31
Q3 24
$0.63
Q2 24
$0.62
Q1 24
$-47.26

Balance Sheet & Financial Strength

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

Metric
EOSE
EOSE
MLAB
MLAB
Cash + ST InvestmentsLiquidity on hand
$568.0M
$29.0M
Total DebtLower is stronger
$813.3M
$68.4M
Stockholders' EquityBook value
$-2.2B
$186.7M
Total Assets
$885.2M
$434.8M
Debt / EquityLower = less leverage
0.37×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
EOSE
EOSE
MLAB
MLAB
Q4 25
$568.0M
$29.0M
Q3 25
$58.7M
$20.4M
Q2 25
$120.2M
$21.3M
Q1 25
$82.6M
$27.3M
Q4 24
$74.3M
$27.3M
Q3 24
$24.3M
Q2 24
$28.5M
Q1 24
$28.2M
Total Debt
EOSE
EOSE
MLAB
MLAB
Q4 25
$813.3M
$68.4M
Q3 25
$448.5M
$69.4M
Q2 25
$445.3M
$70.3M
Q1 25
$325.5M
$71.3M
Q4 24
$316.9M
$72.2M
Q3 24
$73.1M
Q2 24
$74.1M
Q1 24
Stockholders' Equity
EOSE
EOSE
MLAB
MLAB
Q4 25
$-2.2B
$186.7M
Q3 25
$-2.3B
$178.5M
Q2 25
$-1.1B
$172.5M
Q1 25
$-942.2M
$159.8M
Q4 24
$-1.1B
$155.2M
Q3 24
$161.5M
Q2 24
$150.7M
Q1 24
$145.4M
Total Assets
EOSE
EOSE
MLAB
MLAB
Q4 25
$885.2M
$434.8M
Q3 25
$328.2M
$430.4M
Q2 25
$361.0M
$435.7M
Q1 25
$263.3M
$433.3M
Q4 24
$260.3M
$433.3M
Q3 24
$454.1M
Q2 24
$440.4M
Q1 24
$446.8M
Debt / Equity
EOSE
EOSE
MLAB
MLAB
Q4 25
0.37×
Q3 25
0.39×
Q2 25
0.41×
Q1 25
0.45×
Q4 24
0.47×
Q3 24
0.45×
Q2 24
0.49×
Q1 24

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
MLAB
MLAB
Operating Cash FlowLast quarter
$-50.3M
$18.8M
Free Cash FlowOCF − Capex
$-75.2M
$18.0M
FCF MarginFCF / Revenue
-129.7%
27.7%
Capex IntensityCapex / Revenue
43.1%
1.1%
Cash ConversionOCF / Net Profit
5.17×
TTM Free Cash FlowTrailing 4 quarters
$-265.0M
$37.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
EOSE
EOSE
MLAB
MLAB
Q4 25
$-50.3M
$18.8M
Q3 25
$-65.9M
$8.2M
Q2 25
$-66.1M
$1.9M
Q1 25
$-28.9M
$12.7M
Q4 24
$-42.7M
$18.1M
Q3 24
$5.3M
Q2 24
$10.7M
Q1 24
$12.9M
Free Cash Flow
EOSE
EOSE
MLAB
MLAB
Q4 25
$-75.2M
$18.0M
Q3 25
$-82.7M
$7.1M
Q2 25
$-73.2M
$884.0K
Q1 25
$-33.8M
$11.9M
Q4 24
$-55.8M
$17.3M
Q3 24
$3.5M
Q2 24
$9.9M
Q1 24
$12.3M
FCF Margin
EOSE
EOSE
MLAB
MLAB
Q4 25
-129.7%
27.7%
Q3 25
-271.1%
11.7%
Q2 25
-480.2%
1.5%
Q1 25
-323.6%
19.2%
Q4 24
-769.1%
27.6%
Q3 24
6.0%
Q2 24
16.9%
Q1 24
21.0%
Capex Intensity
EOSE
EOSE
MLAB
MLAB
Q4 25
43.1%
1.1%
Q3 25
55.2%
1.8%
Q2 25
46.2%
1.7%
Q1 25
47.0%
1.2%
Q4 24
180.6%
1.3%
Q3 24
3.1%
Q2 24
1.5%
Q1 24
0.9%
Cash Conversion
EOSE
EOSE
MLAB
MLAB
Q4 25
5.17×
Q3 25
3.32×
Q2 25
0.40×
Q1 25
-1.91×
Q4 24
Q3 24
1.54×
Q2 24
3.17×
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

EOSE
EOSE

Segment breakdown not available.

MLAB
MLAB

Sterilization And Disinfection Control$24.9M38%
Biopharmaceutical Development$14.4M22%
Other$14.1M22%
Clinical Genomics$11.8M18%

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