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

INNOSPEC INC. is the larger business by last-quarter revenue ($455.6M vs $289.7M, roughly 1.6× ESCO TECHNOLOGIES INC). INNOSPEC INC. runs the higher net margin — 10.4% vs 9.9%, a 0.5% gap on every dollar of revenue. On growth, ESCO TECHNOLOGIES INC posted the faster year-over-year revenue change (17.3% vs -2.4%). ESCO TECHNOLOGIES INC produced more free cash flow last quarter ($63.0M vs $46.8M). Over the past eight quarters, ESCO TECHNOLOGIES INC's revenue compounded faster (7.8% CAGR vs -4.6%).

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

Innospec Inc., formerly known as Octel Corporation and Associated Octel Company, Ltd., is an American specialty chemical company. It comprises three business units:The Performance Chemicals business trades in the personal care, home care, agrochemical, mining and industrial markets. The Fuel Specialties business specializes in manufacturing and supplying fuel additives. The Oilfield Services business supplies drilling, completion and production chemicals.

ESE vs IOSP — Head-to-Head

Bigger by revenue
IOSP
IOSP
1.6× larger
IOSP
$455.6M
$289.7M
ESE
Growing faster (revenue YoY)
ESE
ESE
+19.7% gap
ESE
17.3%
-2.4%
IOSP
Higher net margin
IOSP
IOSP
0.5% more per $
IOSP
10.4%
9.9%
ESE
More free cash flow
ESE
ESE
$16.2M more FCF
ESE
$63.0M
$46.8M
IOSP
Faster 2-yr revenue CAGR
ESE
ESE
Annualised
ESE
7.8%
-4.6%
IOSP

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
ESE
ESE
IOSP
IOSP
Revenue
$289.7M
$455.6M
Net Profit
$28.7M
$47.4M
Gross Margin
41.4%
28.0%
Operating Margin
13.2%
10.3%
Net Margin
9.9%
10.4%
Revenue YoY
17.3%
-2.4%
Net Profit YoY
22.2%
167.3%
EPS (diluted)
$1.11
$1.90

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
IOSP
IOSP
Q4 25
$289.7M
$455.6M
Q3 25
$286.5M
$441.9M
Q2 25
$296.3M
$439.7M
Q1 25
$265.5M
$440.8M
Q4 24
$247.0M
$466.8M
Q3 24
$298.5M
$443.4M
Q2 24
$260.8M
$435.0M
Q1 24
$249.1M
$500.2M
Net Profit
ESE
ESE
IOSP
IOSP
Q4 25
$28.7M
$47.4M
Q3 25
$218.7M
$12.9M
Q2 25
$26.1M
$23.5M
Q1 25
$31.0M
$32.8M
Q4 24
$23.5M
$-70.4M
Q3 24
$34.3M
$33.4M
Q2 24
$29.2M
$31.2M
Q1 24
$23.2M
$41.4M
Gross Margin
ESE
ESE
IOSP
IOSP
Q4 25
41.4%
28.0%
Q3 25
45.9%
26.4%
Q2 25
41.2%
28.0%
Q1 25
41.1%
28.4%
Q4 24
39.8%
29.2%
Q3 24
40.1%
28.0%
Q2 24
39.6%
29.2%
Q1 24
38.8%
31.1%
Operating Margin
ESE
ESE
IOSP
IOSP
Q4 25
13.2%
10.3%
Q3 25
17.2%
1.3%
Q2 25
11.2%
7.8%
Q1 25
15.3%
9.6%
Q4 24
11.4%
8.8%
Q3 24
14.8%
10.3%
Q2 24
14.3%
9.4%
Q1 24
11.7%
10.1%
Net Margin
ESE
ESE
IOSP
IOSP
Q4 25
9.9%
10.4%
Q3 25
76.3%
2.9%
Q2 25
8.8%
5.3%
Q1 25
11.7%
7.4%
Q4 24
9.5%
-15.1%
Q3 24
11.5%
7.5%
Q2 24
11.2%
7.2%
Q1 24
9.3%
8.3%
EPS (diluted)
ESE
ESE
IOSP
IOSP
Q4 25
$1.11
$1.90
Q3 25
$8.43
$0.52
Q2 25
$1.01
$0.94
Q1 25
$1.20
$1.31
Q4 24
$0.91
$-2.80
Q3 24
$1.32
$1.33
Q2 24
$1.13
$1.24
Q1 24
$0.90
$1.65

Balance Sheet & Financial Strength

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

Metric
ESE
ESE
IOSP
IOSP
Cash + ST InvestmentsLiquidity on hand
$103.8M
$292.5M
Total DebtLower is stronger
$145.5M
Stockholders' EquityBook value
$1.6B
$1.3B
Total Assets
$2.4B
$1.8B
Debt / EquityLower = less leverage
0.09×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ESE
ESE
IOSP
IOSP
Q4 25
$103.8M
$292.5M
Q3 25
$101.3M
$270.8M
Q2 25
$78.7M
$266.6M
Q1 25
$57.4M
$299.8M
Q4 24
$71.3M
$289.2M
Q3 24
$66.0M
$303.8M
Q2 24
$63.0M
$240.2M
Q1 24
$59.4M
$270.1M
Total Debt
ESE
ESE
IOSP
IOSP
Q4 25
$145.5M
Q3 25
$186.0M
Q2 25
$525.0M
Q1 25
$88.0M
Q4 24
$112.0M
Q3 24
$122.0M
Q2 24
$173.0M
Q1 24
$191.0M
Stockholders' Equity
ESE
ESE
IOSP
IOSP
Q4 25
$1.6B
$1.3B
Q3 25
$1.5B
$1.3B
Q2 25
$1.3B
$1.3B
Q1 25
$1.3B
$1.3B
Q4 24
$1.2B
$1.2B
Q3 24
$1.2B
$1.2B
Q2 24
$1.2B
$1.2B
Q1 24
$1.2B
$1.2B
Total Assets
ESE
ESE
IOSP
IOSP
Q4 25
$2.4B
$1.8B
Q3 25
$2.4B
$1.8B
Q2 25
$2.5B
$1.8B
Q1 25
$1.8B
$1.8B
Q4 24
$1.8B
$1.7B
Q3 24
$1.8B
$1.8B
Q2 24
$1.8B
$1.7B
Q1 24
$1.8B
$1.7B
Debt / Equity
ESE
ESE
IOSP
IOSP
Q4 25
0.09×
Q3 25
0.12×
Q2 25
0.40×
Q1 25
0.07×
Q4 24
0.09×
Q3 24
0.10×
Q2 24
0.14×
Q1 24
0.16×

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
IOSP
IOSP
Operating Cash FlowLast quarter
$68.9M
$61.4M
Free Cash FlowOCF − Capex
$63.0M
$46.8M
FCF MarginFCF / Revenue
21.7%
10.3%
Capex IntensityCapex / Revenue
2.0%
3.2%
Cash ConversionOCF / Net Profit
2.40×
1.30×
TTM Free Cash FlowTrailing 4 quarters
$239.6M
$88.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ESE
ESE
IOSP
IOSP
Q4 25
$68.9M
$61.4M
Q3 25
$109.9M
$39.3M
Q2 25
$73.7M
$9.3M
Q1 25
$24.1M
$28.3M
Q4 24
$34.2M
$25.7M
Q3 24
$72.1M
$73.5M
Q2 24
$36.2M
$4.7M
Q1 24
$10.5M
$80.6M
Free Cash Flow
ESE
ESE
IOSP
IOSP
Q4 25
$63.0M
$46.8M
Q3 25
$97.8M
$25.0M
Q2 25
$64.9M
$-3.7M
Q1 25
$14.0M
$19.9M
Q4 24
$29.0M
$13.6M
Q3 24
$60.9M
$65.8M
Q2 24
$27.6M
$-6.2M
Q1 24
$2.0M
$69.9M
FCF Margin
ESE
ESE
IOSP
IOSP
Q4 25
21.7%
10.3%
Q3 25
34.1%
5.7%
Q2 25
21.9%
-0.8%
Q1 25
5.3%
4.5%
Q4 24
11.7%
2.9%
Q3 24
20.4%
14.8%
Q2 24
10.6%
-1.4%
Q1 24
0.8%
14.0%
Capex Intensity
ESE
ESE
IOSP
IOSP
Q4 25
2.0%
3.2%
Q3 25
4.2%
3.2%
Q2 25
3.0%
3.0%
Q1 25
3.8%
1.9%
Q4 24
2.1%
2.6%
Q3 24
3.8%
1.7%
Q2 24
3.3%
2.5%
Q1 24
3.4%
2.1%
Cash Conversion
ESE
ESE
IOSP
IOSP
Q4 25
2.40×
1.30×
Q3 25
0.50×
3.05×
Q2 25
2.83×
0.40×
Q1 25
0.78×
0.86×
Q4 24
1.46×
Q3 24
2.10×
2.20×
Q2 24
1.24×
0.15×
Q1 24
0.45×
1.95×

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%

IOSP
IOSP

Refinery And Performance$147.0M32%
Personal Care$99.7M22%
Oilfield Services$93.1M20%
Other Fuel Specialties$47.1M10%
Other Performance Chemicals$40.0M9%
Home Care$28.7M6%

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