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Side-by-side financial comparison of Energy Recovery, Inc. (ERII) and Quanterix Corp (QTRX). Click either name above to swap in a different company.

Energy Recovery, Inc. is the larger business by last-quarter revenue ($66.9M vs $43.9M, roughly 1.5× Quanterix Corp). Energy Recovery, Inc. runs the higher net margin — 40.2% vs -52.7%, a 93.0% gap on every dollar of revenue. On growth, Quanterix Corp posted the faster year-over-year revenue change (24.7% vs -0.3%). Energy Recovery, Inc. produced more free cash flow last quarter ($6.4M vs $-16.5M). Over the past eight quarters, Quanterix Corp's revenue compounded faster (16.9% CAGR vs 8.1%).

Energy Recovery Inc. is an American manufacturer of energy recovery devices for water and CO2 refrigeration industries.

Quanterix Corp is a life sciences firm that develops, manufactures, and commercializes ultra-sensitive single-molecule detection diagnostic platforms, reagents, and testing services. Its solutions empower biological research, drug development, and clinical diagnostics across oncology, neurodegenerative disorders, infectious diseases, and other therapeutic areas, serving research institutions, biopharmaceutical companies, and clinical laboratories globally.

ERII vs QTRX — Head-to-Head

Bigger by revenue
ERII
ERII
1.5× larger
ERII
$66.9M
$43.9M
QTRX
Growing faster (revenue YoY)
QTRX
QTRX
+25.0% gap
QTRX
24.7%
-0.3%
ERII
Higher net margin
ERII
ERII
93.0% more per $
ERII
40.2%
-52.7%
QTRX
More free cash flow
ERII
ERII
$23.0M more FCF
ERII
$6.4M
$-16.5M
QTRX
Faster 2-yr revenue CAGR
QTRX
QTRX
Annualised
QTRX
16.9%
8.1%
ERII

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ERII
ERII
QTRX
QTRX
Revenue
$66.9M
$43.9M
Net Profit
$26.9M
$-23.1M
Gross Margin
67.2%
45.7%
Operating Margin
46.8%
-56.4%
Net Margin
40.2%
-52.7%
Revenue YoY
-0.3%
24.7%
Net Profit YoY
14.7%
-98.8%
EPS (diluted)
$0.49
$-0.48

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
ERII
ERII
QTRX
QTRX
Q4 25
$66.9M
$43.9M
Q3 25
$32.0M
$40.2M
Q2 25
$28.1M
$24.5M
Q1 25
$30.3M
Q4 24
$67.1M
$35.2M
Q3 24
$38.6M
$35.8M
Q2 24
$27.2M
$34.4M
Q1 24
$12.1M
$32.1M
Net Profit
ERII
ERII
QTRX
QTRX
Q4 25
$26.9M
$-23.1M
Q3 25
$3.9M
$-33.5M
Q2 25
$2.1M
$-30.0M
Q1 25
$-20.5M
Q4 24
$23.5M
$-11.6M
Q3 24
$8.5M
$-8.4M
Q2 24
$-642.0K
$-7.4M
Q1 24
$-8.3M
$-11.2M
Gross Margin
ERII
ERII
QTRX
QTRX
Q4 25
67.2%
45.7%
Q3 25
64.2%
42.8%
Q2 25
64.0%
46.2%
Q1 25
54.1%
Q4 24
70.2%
63.0%
Q3 24
65.1%
56.3%
Q2 24
64.6%
64.7%
Q1 24
59.0%
57.8%
Operating Margin
ERII
ERII
QTRX
QTRX
Q4 25
46.8%
-56.4%
Q3 25
11.4%
-92.8%
Q2 25
5.3%
-151.6%
Q1 25
-86.9%
Q4 24
38.2%
-42.0%
Q3 24
18.3%
-32.8%
Q2 24
-7.4%
-31.8%
Q1 24
-90.4%
-47.3%
Net Margin
ERII
ERII
QTRX
QTRX
Q4 25
40.2%
-52.7%
Q3 25
12.1%
-83.3%
Q2 25
7.3%
-122.6%
Q1 25
-67.6%
Q4 24
35.0%
-33.1%
Q3 24
22.0%
-23.3%
Q2 24
-2.4%
-21.5%
Q1 24
-68.3%
-34.8%
EPS (diluted)
ERII
ERII
QTRX
QTRX
Q4 25
$0.49
$-0.48
Q3 25
$0.07
$-0.73
Q2 25
$0.04
$-0.77
Q1 25
$-0.53
Q4 24
$0.40
$-0.30
Q3 24
$0.15
$-0.22
Q2 24
$-0.01
$-0.19
Q1 24
$-0.14
$-0.29

Balance Sheet & Financial Strength

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

Metric
ERII
ERII
QTRX
QTRX
Cash + ST InvestmentsLiquidity on hand
$75.2M
$29.8M
Total DebtLower is stronger
Stockholders' EquityBook value
$206.2M
$295.7M
Total Assets
$231.5M
$418.8M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ERII
ERII
QTRX
QTRX
Q4 25
$75.2M
$29.8M
Q3 25
$70.4M
$38.3M
Q2 25
$79.5M
$132.9M
Q1 25
$76.5M
Q4 24
$78.0M
$56.7M
Q3 24
$118.6M
$29.3M
Q2 24
$101.0M
$47.0M
Q1 24
$117.4M
$45.3M
Stockholders' Equity
ERII
ERII
QTRX
QTRX
Q4 25
$206.2M
$295.7M
Q3 25
$180.8M
$314.5M
Q2 25
$185.2M
$292.5M
Q1 25
$316.4M
Q4 24
$210.0M
$330.0M
Q3 24
$233.9M
$338.9M
Q2 24
$218.5M
$340.8M
Q1 24
$216.0M
$343.4M
Total Assets
ERII
ERII
QTRX
QTRX
Q4 25
$231.5M
$418.8M
Q3 25
$209.6M
$444.1M
Q2 25
$212.3M
$375.6M
Q1 25
$396.5M
Q4 24
$242.8M
$406.5M
Q3 24
$262.7M
$411.0M
Q2 24
$249.0M
$415.9M
Q1 24
$244.3M
$414.2M

Cash Flow & Capital Efficiency

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

Metric
ERII
ERII
QTRX
QTRX
Operating Cash FlowLast quarter
$7.1M
$-16.4M
Free Cash FlowOCF − Capex
$6.4M
$-16.5M
FCF MarginFCF / Revenue
9.6%
-37.7%
Capex IntensityCapex / Revenue
1.0%
0.2%
Cash ConversionOCF / Net Profit
0.26×
TTM Free Cash FlowTrailing 4 quarters
$15.8M
$-80.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ERII
ERII
QTRX
QTRX
Q4 25
$7.1M
$-16.4M
Q3 25
$-3.1M
$-41.2M
Q2 25
$4.1M
$-5.7M
Q1 25
$-13.9M
Q4 24
$9.0M
$-4.3M
Q3 24
$-3.0M
$-5.7M
Q2 24
$8.1M
$-5.0M
Q1 24
$6.5M
$-20.2M
Free Cash Flow
ERII
ERII
QTRX
QTRX
Q4 25
$6.4M
$-16.5M
Q3 25
$-3.5M
$-41.9M
Q2 25
$4.0M
$-6.4M
Q1 25
$-15.1M
Q4 24
$8.9M
$-4.7M
Q3 24
$-3.2M
$-6.6M
Q2 24
$7.9M
$-6.5M
Q1 24
$5.7M
$-20.7M
FCF Margin
ERII
ERII
QTRX
QTRX
Q4 25
9.6%
-37.7%
Q3 25
-10.9%
-104.2%
Q2 25
14.3%
-26.3%
Q1 25
-49.9%
Q4 24
13.2%
-13.4%
Q3 24
-8.2%
-18.4%
Q2 24
28.9%
-19.1%
Q1 24
46.9%
-64.5%
Capex Intensity
ERII
ERII
QTRX
QTRX
Q4 25
1.0%
0.2%
Q3 25
1.1%
1.7%
Q2 25
0.5%
3.2%
Q1 25
4.1%
Q4 24
0.2%
1.2%
Q3 24
0.4%
2.4%
Q2 24
0.7%
4.7%
Q1 24
6.8%
1.6%
Cash Conversion
ERII
ERII
QTRX
QTRX
Q4 25
0.26×
Q3 25
-0.81×
Q2 25
2.02×
Q1 25
Q4 24
0.38×
Q3 24
-0.35×
Q2 24
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

ERII
ERII

Water Segment$38.6M58%
Other$11.0M16%
Original Equipment Manufacturer$10.6M16%
Aftermarket$6.6M10%

QTRX
QTRX

Products$29.2M67%
Consumable And Other Products$12.7M29%
Service Type Warranties$1.7M4%

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