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

STEPAN CO is the larger business by last-quarter revenue ($604.5M vs $455.6M, roughly 1.3× INNOSPEC INC.). INNOSPEC INC. runs the higher net margin — 10.4% vs 3.3%, a 7.1% gap on every dollar of revenue. On growth, STEPAN CO posted the faster year-over-year revenue change (1.9% vs -2.4%). Over the past eight quarters, STEPAN CO's revenue compounded faster (4.2% CAGR vs -4.6%).

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.

Stepan Company is an American manufacturer of specialty chemicals headquartered in Northbrook, Illinois. The company was founded in 1932 by Alfred C. Stepan, Jr., and has approximately 2,000 employees. It is currently run by his grandson, F. Quinn Stepan, Jr. The company describes itself as the largest global merchant manufacturer of anionic surfactants, which are used to enhance the foaming and cleaning capabilities of detergents, shampoos, toothpastes, and cosmetics.

IOSP vs SCL — Head-to-Head

Bigger by revenue
SCL
SCL
1.3× larger
SCL
$604.5M
$455.6M
IOSP
Growing faster (revenue YoY)
SCL
SCL
+4.3% gap
SCL
1.9%
-2.4%
IOSP
Higher net margin
IOSP
IOSP
7.1% more per $
IOSP
10.4%
3.3%
SCL
Faster 2-yr revenue CAGR
SCL
SCL
Annualised
SCL
4.2%
-4.6%
IOSP

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
IOSP
IOSP
SCL
SCL
Revenue
$455.6M
$604.5M
Net Profit
$47.4M
$19.7M
Gross Margin
28.0%
10.7%
Operating Margin
10.3%
4.7%
Net Margin
10.4%
3.3%
Revenue YoY
-2.4%
1.9%
Net Profit YoY
167.3%
EPS (diluted)
$1.90
$0.86

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
IOSP
IOSP
SCL
SCL
Q1 26
$604.5M
Q4 25
$455.6M
$553.9M
Q3 25
$441.9M
$590.3M
Q2 25
$439.7M
$594.7M
Q1 25
$440.8M
$593.3M
Q4 24
$466.8M
$525.6M
Q3 24
$443.4M
$546.8M
Q2 24
$435.0M
$556.4M
Net Profit
IOSP
IOSP
SCL
SCL
Q1 26
$19.7M
Q4 25
$47.4M
$5.0M
Q3 25
$12.9M
$10.8M
Q2 25
$23.5M
$11.3M
Q1 25
$32.8M
$19.7M
Q4 24
$-70.4M
$3.4M
Q3 24
$33.4M
$23.6M
Q2 24
$31.2M
$9.5M
Gross Margin
IOSP
IOSP
SCL
SCL
Q1 26
10.7%
Q4 25
28.0%
9.3%
Q3 25
26.4%
12.0%
Q2 25
28.0%
12.1%
Q1 25
28.4%
12.7%
Q4 24
29.2%
10.8%
Q3 24
28.0%
13.8%
Q2 24
29.2%
12.5%
Operating Margin
IOSP
IOSP
SCL
SCL
Q1 26
4.7%
Q4 25
10.3%
1.9%
Q3 25
1.3%
3.7%
Q2 25
7.8%
3.0%
Q1 25
9.6%
4.8%
Q4 24
8.8%
1.5%
Q3 24
10.3%
4.4%
Q2 24
9.4%
3.4%
Net Margin
IOSP
IOSP
SCL
SCL
Q1 26
3.3%
Q4 25
10.4%
0.9%
Q3 25
2.9%
1.8%
Q2 25
5.3%
1.9%
Q1 25
7.4%
3.3%
Q4 24
-15.1%
0.6%
Q3 24
7.5%
4.3%
Q2 24
7.2%
1.7%
EPS (diluted)
IOSP
IOSP
SCL
SCL
Q1 26
$0.86
Q4 25
$1.90
$0.22
Q3 25
$0.52
$0.47
Q2 25
$0.94
$0.50
Q1 25
$1.31
$0.86
Q4 24
$-2.80
$0.14
Q3 24
$1.33
$1.03
Q2 24
$1.24
$0.42

Balance Sheet & Financial Strength

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

Metric
IOSP
IOSP
SCL
SCL
Cash + ST InvestmentsLiquidity on hand
$292.5M
Total DebtLower is stronger
$328.4M
Stockholders' EquityBook value
$1.3B
$1.2B
Total Assets
$1.8B
$2.3B
Debt / EquityLower = less leverage
0.28×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
IOSP
IOSP
SCL
SCL
Q1 26
Q4 25
$292.5M
$132.7M
Q3 25
$270.8M
$118.5M
Q2 25
$266.6M
$88.9M
Q1 25
$299.8M
$107.5M
Q4 24
$289.2M
$99.7M
Q3 24
$303.8M
$147.3M
Q2 24
$240.2M
$124.7M
Total Debt
IOSP
IOSP
SCL
SCL
Q1 26
$328.4M
Q4 25
$626.7M
Q3 25
$655.5M
Q2 25
$658.0M
Q1 25
$659.3M
Q4 24
$625.4M
Q3 24
$688.5M
Q2 24
$657.1M
Stockholders' Equity
IOSP
IOSP
SCL
SCL
Q1 26
$1.2B
Q4 25
$1.3B
$1.2B
Q3 25
$1.3B
$1.2B
Q2 25
$1.3B
$1.2B
Q1 25
$1.3B
$1.2B
Q4 24
$1.2B
$1.2B
Q3 24
$1.2B
$1.2B
Q2 24
$1.2B
$1.2B
Total Assets
IOSP
IOSP
SCL
SCL
Q1 26
$2.3B
Q4 25
$1.8B
$2.4B
Q3 25
$1.8B
$2.4B
Q2 25
$1.8B
$2.4B
Q1 25
$1.8B
$2.4B
Q4 24
$1.7B
$2.3B
Q3 24
$1.8B
$2.4B
Q2 24
$1.7B
$2.3B
Debt / Equity
IOSP
IOSP
SCL
SCL
Q1 26
0.28×
Q4 25
0.50×
Q3 25
0.53×
Q2 25
0.53×
Q1 25
0.55×
Q4 24
0.53×
Q3 24
0.56×
Q2 24
0.55×

Cash Flow & Capital Efficiency

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

Metric
IOSP
IOSP
SCL
SCL
Operating Cash FlowLast quarter
$61.4M
Free Cash FlowOCF − Capex
$46.8M
FCF MarginFCF / Revenue
10.3%
Capex IntensityCapex / Revenue
3.2%
Cash ConversionOCF / Net Profit
1.30×
TTM Free Cash FlowTrailing 4 quarters
$88.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
IOSP
IOSP
SCL
SCL
Q1 26
Q4 25
$61.4M
$60.0M
Q3 25
$39.3M
$69.8M
Q2 25
$9.3M
$11.2M
Q1 25
$28.3M
$6.9M
Q4 24
$25.7M
$68.3M
Q3 24
$73.5M
$22.7M
Q2 24
$4.7M
$29.5M
Free Cash Flow
IOSP
IOSP
SCL
SCL
Q1 26
Q4 25
$46.8M
$25.4M
Q3 25
$25.0M
$40.2M
Q2 25
$-3.7M
$-14.4M
Q1 25
$19.9M
$-25.8M
Q4 24
$13.6M
$32.1M
Q3 24
$65.8M
$-4.0M
Q2 24
$-6.2M
$-208.0K
FCF Margin
IOSP
IOSP
SCL
SCL
Q1 26
Q4 25
10.3%
4.6%
Q3 25
5.7%
6.8%
Q2 25
-0.8%
-2.4%
Q1 25
4.5%
-4.3%
Q4 24
2.9%
6.1%
Q3 24
14.8%
-0.7%
Q2 24
-1.4%
-0.0%
Capex Intensity
IOSP
IOSP
SCL
SCL
Q1 26
Q4 25
3.2%
6.3%
Q3 25
3.2%
5.0%
Q2 25
3.0%
4.3%
Q1 25
1.9%
5.5%
Q4 24
2.6%
6.9%
Q3 24
1.7%
4.9%
Q2 24
2.5%
5.3%
Cash Conversion
IOSP
IOSP
SCL
SCL
Q1 26
Q4 25
1.30×
11.99×
Q3 25
3.05×
6.44×
Q2 25
0.40×
0.99×
Q1 25
0.86×
0.35×
Q4 24
20.38×
Q3 24
2.20×
0.96×
Q2 24
0.15×
3.10×

Financial Flow Comparison

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

Revenue Breakdown by Segment

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%

SCL
SCL

Surfactants$453.7M75%
Polymers$130.0M22%
Specialty Products$20.8M3%

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