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Side-by-side financial comparison of CSG SYSTEMS INTERNATIONAL INC (CSGS) 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 $323.1M, roughly 1.4× CSG SYSTEMS INTERNATIONAL INC). INNOSPEC INC. runs the higher net margin — 10.4% vs 2.2%, a 8.2% gap on every dollar of revenue. On growth, CSG SYSTEMS INTERNATIONAL INC posted the faster year-over-year revenue change (2.0% vs -2.4%). CSG SYSTEMS INTERNATIONAL INC produced more free cash flow last quarter ($55.8M vs $46.8M). Over the past eight quarters, CSG SYSTEMS INTERNATIONAL INC's revenue compounded faster (4.6% CAGR vs -4.6%).

CSG Holding Limited, formerly China Southern Glass Holding Limited, is the largest architectural glass manufacturer in China. It is involved in manufacturing and selling glass products, such as float glass, architectural glass, display glass, automotive glass, coated glass, mirrors, color filter glass, solar glass and conservation glass.

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.

CSGS vs IOSP — Head-to-Head

Bigger by revenue
IOSP
IOSP
1.4× larger
IOSP
$455.6M
$323.1M
CSGS
Growing faster (revenue YoY)
CSGS
CSGS
+4.4% gap
CSGS
2.0%
-2.4%
IOSP
Higher net margin
IOSP
IOSP
8.2% more per $
IOSP
10.4%
2.2%
CSGS
More free cash flow
CSGS
CSGS
$9.0M more FCF
CSGS
$55.8M
$46.8M
IOSP
Faster 2-yr revenue CAGR
CSGS
CSGS
Annualised
CSGS
4.6%
-4.6%
IOSP

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
CSGS
CSGS
IOSP
IOSP
Revenue
$323.1M
$455.6M
Net Profit
$7.0M
$47.4M
Gross Margin
50.0%
28.0%
Operating Margin
9.0%
10.3%
Net Margin
2.2%
10.4%
Revenue YoY
2.0%
-2.4%
Net Profit YoY
-79.7%
167.3%
EPS (diluted)
$0.24
$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
CSGS
CSGS
IOSP
IOSP
Q4 25
$323.1M
$455.6M
Q3 25
$303.6M
$441.9M
Q2 25
$297.1M
$439.7M
Q1 25
$299.5M
$440.8M
Q4 24
$316.7M
$466.8M
Q3 24
$295.1M
$443.4M
Q2 24
$290.3M
$435.0M
Q1 24
$295.1M
$500.2M
Net Profit
CSGS
CSGS
IOSP
IOSP
Q4 25
$7.0M
$47.4M
Q3 25
$20.5M
$12.9M
Q2 25
$12.3M
$23.5M
Q1 25
$16.1M
$32.8M
Q4 24
$34.5M
$-70.4M
Q3 24
$19.1M
$33.4M
Q2 24
$13.8M
$31.2M
Q1 24
$19.5M
$41.4M
Gross Margin
CSGS
CSGS
IOSP
IOSP
Q4 25
50.0%
28.0%
Q3 25
48.1%
26.4%
Q2 25
49.5%
28.0%
Q1 25
48.4%
28.4%
Q4 24
51.3%
29.2%
Q3 24
49.4%
28.0%
Q2 24
47.3%
29.2%
Q1 24
46.5%
31.1%
Operating Margin
CSGS
CSGS
IOSP
IOSP
Q4 25
9.0%
10.3%
Q3 25
10.0%
1.3%
Q2 25
10.0%
7.8%
Q1 25
9.8%
9.6%
Q4 24
13.4%
8.8%
Q3 24
10.8%
10.3%
Q2 24
8.8%
9.4%
Q1 24
10.8%
10.1%
Net Margin
CSGS
CSGS
IOSP
IOSP
Q4 25
2.2%
10.4%
Q3 25
6.7%
2.9%
Q2 25
4.1%
5.3%
Q1 25
5.4%
7.4%
Q4 24
10.9%
-15.1%
Q3 24
6.5%
7.5%
Q2 24
4.8%
7.2%
Q1 24
6.6%
8.3%
EPS (diluted)
CSGS
CSGS
IOSP
IOSP
Q4 25
$0.24
$1.90
Q3 25
$0.73
$0.52
Q2 25
$0.44
$0.94
Q1 25
$0.57
$1.31
Q4 24
$1.20
$-2.80
Q3 24
$0.67
$1.33
Q2 24
$0.48
$1.24
Q1 24
$0.68
$1.65

Balance Sheet & Financial Strength

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

Metric
CSGS
CSGS
IOSP
IOSP
Cash + ST InvestmentsLiquidity on hand
$180.0M
$292.5M
Total DebtLower is stronger
$539.5M
Stockholders' EquityBook value
$283.7M
$1.3B
Total Assets
$1.5B
$1.8B
Debt / EquityLower = less leverage
1.90×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CSGS
CSGS
IOSP
IOSP
Q4 25
$180.0M
$292.5M
Q3 25
$158.4M
$270.8M
Q2 25
$145.9M
$266.6M
Q1 25
$136.0M
$299.8M
Q4 24
$161.8M
$289.2M
Q3 24
$118.4M
$303.8M
Q2 24
$110.4M
$240.2M
Q1 24
$120.8M
$270.1M
Total Debt
CSGS
CSGS
IOSP
IOSP
Q4 25
$539.5M
Q3 25
$538.6M
Q2 25
$537.8M
Q1 25
$537.6M
Q4 24
$538.5M
Q3 24
$539.5M
Q2 24
$540.5M
Q1 24
$541.5M
Stockholders' Equity
CSGS
CSGS
IOSP
IOSP
Q4 25
$283.7M
$1.3B
Q3 25
$289.5M
$1.3B
Q2 25
$290.7M
$1.3B
Q1 25
$283.1M
$1.3B
Q4 24
$282.6M
$1.2B
Q3 24
$288.4M
$1.2B
Q2 24
$273.3M
$1.2B
Q1 24
$269.3M
$1.2B
Total Assets
CSGS
CSGS
IOSP
IOSP
Q4 25
$1.5B
$1.8B
Q3 25
$1.5B
$1.8B
Q2 25
$1.4B
$1.8B
Q1 25
$1.4B
$1.8B
Q4 24
$1.5B
$1.7B
Q3 24
$1.4B
$1.8B
Q2 24
$1.4B
$1.7B
Q1 24
$1.3B
$1.7B
Debt / Equity
CSGS
CSGS
IOSP
IOSP
Q4 25
1.90×
Q3 25
1.86×
Q2 25
1.85×
Q1 25
1.90×
Q4 24
1.91×
Q3 24
1.87×
Q2 24
1.98×
Q1 24
2.01×

Cash Flow & Capital Efficiency

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

Metric
CSGS
CSGS
IOSP
IOSP
Operating Cash FlowLast quarter
$59.2M
$61.4M
Free Cash FlowOCF − Capex
$55.8M
$46.8M
FCF MarginFCF / Revenue
17.3%
10.3%
Capex IntensityCapex / Revenue
1.1%
3.2%
Cash ConversionOCF / Net Profit
8.46×
1.30×
TTM Free Cash FlowTrailing 4 quarters
$141.4M
$88.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CSGS
CSGS
IOSP
IOSP
Q4 25
$59.2M
$61.4M
Q3 25
$47.9M
$39.3M
Q2 25
$37.3M
$9.3M
Q1 25
$11.5M
$28.3M
Q4 24
$82.5M
$25.7M
Q3 24
$39.5M
$73.5M
Q2 24
$43.1M
$4.7M
Q1 24
$-29.4M
$80.6M
Free Cash Flow
CSGS
CSGS
IOSP
IOSP
Q4 25
$55.8M
$46.8M
Q3 25
$43.9M
$25.0M
Q2 25
$34.6M
$-3.7M
Q1 25
$7.1M
$19.9M
Q4 24
$76.6M
$13.6M
Q3 24
$32.0M
$65.8M
Q2 24
$38.8M
$-6.2M
Q1 24
$-34.1M
$69.9M
FCF Margin
CSGS
CSGS
IOSP
IOSP
Q4 25
17.3%
10.3%
Q3 25
14.5%
5.7%
Q2 25
11.6%
-0.8%
Q1 25
2.4%
4.5%
Q4 24
24.2%
2.9%
Q3 24
10.8%
14.8%
Q2 24
13.4%
-1.4%
Q1 24
-11.6%
14.0%
Capex Intensity
CSGS
CSGS
IOSP
IOSP
Q4 25
1.1%
3.2%
Q3 25
1.3%
3.2%
Q2 25
0.9%
3.0%
Q1 25
1.5%
1.9%
Q4 24
1.9%
2.6%
Q3 24
2.5%
1.7%
Q2 24
1.5%
2.5%
Q1 24
1.6%
2.1%
Cash Conversion
CSGS
CSGS
IOSP
IOSP
Q4 25
8.46×
1.30×
Q3 25
2.34×
3.05×
Q2 25
3.04×
0.40×
Q1 25
0.71×
0.86×
Q4 24
2.39×
Q3 24
2.07×
2.20×
Q2 24
3.12×
0.15×
Q1 24
-1.51×
1.95×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CSGS
CSGS

Software As A Service And Related Solutions$287.2M89%
License And Service$22.6M7%
Maintenance$13.3M4%

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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