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Side-by-side financial comparison of CoStar Group (CSGP) and DONALDSON Co INC (DCI). Click either name above to swap in a different company.

DONALDSON Co INC is the larger business by last-quarter revenue ($935.4M vs $899.9M, roughly 1.0× CoStar Group). DONALDSON Co INC runs the higher net margin — 12.2% vs 5.2%, a 7.0% gap on every dollar of revenue. On growth, CoStar Group posted the faster year-over-year revenue change (26.9% vs 3.9%). DONALDSON Co INC produced more free cash flow last quarter ($111.2M vs $101.3M). Over the past eight quarters, CoStar Group's revenue compounded faster (17.1% CAGR vs 3.3%).

CoStar Group, Inc. is an American provider of information, analytics, and marketing services to the commercial property industry in North America and Europe. Founded in 1987 by Andrew C. Florance and based in Arlington, Virginia, the company operates the CoStar online database and news website and several online marketplaces, including Apartments.com and Homes.com.

Donaldson Company, Inc. is a filtration company engaged in the production and marketing of filtration products used in a variety of industry sectors, including commercial/industrial, aerospace, chemical, alternative energy (windmills), food & beverage, and pharmaceuticals. Also the company's research division, located in Minneapolis, Minn., participated in defense-related projects for various military applications.

CSGP vs DCI — Head-to-Head

Bigger by revenue
DCI
DCI
1.0× larger
DCI
$935.4M
$899.9M
CSGP
Growing faster (revenue YoY)
CSGP
CSGP
+22.9% gap
CSGP
26.9%
3.9%
DCI
Higher net margin
DCI
DCI
7.0% more per $
DCI
12.2%
5.2%
CSGP
More free cash flow
DCI
DCI
$9.9M more FCF
DCI
$111.2M
$101.3M
CSGP
Faster 2-yr revenue CAGR
CSGP
CSGP
Annualised
CSGP
17.1%
3.3%
DCI

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
CSGP
CSGP
DCI
DCI
Revenue
$899.9M
$935.4M
Net Profit
$46.5M
$113.9M
Gross Margin
78.6%
35.2%
Operating Margin
5.5%
16.0%
Net Margin
5.2%
12.2%
Revenue YoY
26.9%
3.9%
Net Profit YoY
-22.2%
15.1%
EPS (diluted)
$0.12
$0.97

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
CSGP
CSGP
DCI
DCI
Q4 25
$899.9M
$935.4M
Q3 25
$833.6M
$980.7M
Q2 25
$781.3M
$940.1M
Q1 25
$732.2M
$870.0M
Q4 24
$709.4M
$900.1M
Q3 24
$692.6M
$935.4M
Q2 24
$677.8M
$927.9M
Q1 24
$656.4M
$876.7M
Net Profit
CSGP
CSGP
DCI
DCI
Q4 25
$46.5M
$113.9M
Q3 25
$-30.9M
$114.3M
Q2 25
$6.2M
$57.8M
Q1 25
$-14.8M
$95.9M
Q4 24
$59.8M
$99.0M
Q3 24
$53.0M
$109.7M
Q2 24
$19.2M
$113.5M
Q1 24
$6.7M
$98.7M
Gross Margin
CSGP
CSGP
DCI
DCI
Q4 25
78.6%
35.2%
Q3 25
79.3%
34.5%
Q2 25
78.5%
34.2%
Q1 25
79.1%
35.2%
Q4 24
80.1%
35.5%
Q3 24
79.7%
35.8%
Q2 24
80.0%
35.6%
Q1 24
78.5%
35.2%
Operating Margin
CSGP
CSGP
DCI
DCI
Q4 25
5.5%
16.0%
Q3 25
-6.1%
15.5%
Q2 25
-3.5%
9.3%
Q1 25
-5.8%
14.4%
Q4 24
5.6%
14.5%
Q3 24
3.4%
15.6%
Q2 24
-2.4%
15.5%
Q1 24
-6.5%
14.8%
Net Margin
CSGP
CSGP
DCI
DCI
Q4 25
5.2%
12.2%
Q3 25
-3.7%
11.7%
Q2 25
0.8%
6.1%
Q1 25
-2.0%
11.0%
Q4 24
8.4%
11.0%
Q3 24
7.7%
11.7%
Q2 24
2.8%
12.2%
Q1 24
1.0%
11.3%
EPS (diluted)
CSGP
CSGP
DCI
DCI
Q4 25
$0.12
$0.97
Q3 25
$-0.07
$0.97
Q2 25
$0.01
$0.48
Q1 25
$-0.04
$0.79
Q4 24
$0.14
$0.81
Q3 24
$0.13
$0.90
Q2 24
$0.05
$0.92
Q1 24
$0.02
$0.81

Balance Sheet & Financial Strength

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

Metric
CSGP
CSGP
DCI
DCI
Cash + ST InvestmentsLiquidity on hand
$1.6B
$210.7M
Total DebtLower is stronger
$140.0M
$671.5M
Stockholders' EquityBook value
$8.3B
$1.5B
Total Assets
$10.5B
$3.0B
Debt / EquityLower = less leverage
0.02×
0.44×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CSGP
CSGP
DCI
DCI
Q4 25
$1.6B
$210.7M
Q3 25
$1.9B
$180.4M
Q2 25
$3.6B
$178.5M
Q1 25
$3.7B
$189.1M
Q4 24
$4.7B
$221.2M
Q3 24
$232.7M
Q2 24
$223.7M
Q1 24
$193.8M
Total Debt
CSGP
CSGP
DCI
DCI
Q4 25
$140.0M
$671.5M
Q3 25
$1.0B
$630.4M
Q2 25
$1.0B
$638.8M
Q1 25
$1.0B
$514.7M
Q4 24
$1.0B
$538.6M
Q3 24
$1.0B
$483.4M
Q2 24
$1.0B
$481.8M
Q1 24
$1.0B
$352.0M
Stockholders' Equity
CSGP
CSGP
DCI
DCI
Q4 25
$8.3B
$1.5B
Q3 25
$8.6B
$1.5B
Q2 25
$8.6B
$1.5B
Q1 25
$8.6B
$1.5B
Q4 24
$7.6B
$1.5B
Q3 24
$7.5B
$1.5B
Q2 24
$7.4B
$1.5B
Q1 24
$7.3B
$1.4B
Total Assets
CSGP
CSGP
DCI
DCI
Q4 25
$10.5B
$3.0B
Q3 25
$10.8B
$3.0B
Q2 25
$10.5B
$3.0B
Q1 25
$10.4B
$3.0B
Q4 24
$9.3B
$3.0B
Q3 24
$9.1B
$2.9B
Q2 24
$9.1B
$2.9B
Q1 24
$9.0B
$2.8B
Debt / Equity
CSGP
CSGP
DCI
DCI
Q4 25
0.02×
0.44×
Q3 25
0.12×
0.43×
Q2 25
0.12×
0.44×
Q1 25
0.12×
0.33×
Q4 24
0.13×
0.35×
Q3 24
0.13×
0.32×
Q2 24
0.14×
0.32×
Q1 24
0.14×
0.26×

Cash Flow & Capital Efficiency

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

Metric
CSGP
CSGP
DCI
DCI
Operating Cash FlowLast quarter
$162.1M
$125.4M
Free Cash FlowOCF − Capex
$101.3M
$111.2M
FCF MarginFCF / Revenue
11.3%
11.9%
Capex IntensityCapex / Revenue
6.8%
1.5%
Cash ConversionOCF / Net Profit
3.49×
1.10×
TTM Free Cash FlowTrailing 4 quarters
$123.0M
$403.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CSGP
CSGP
DCI
DCI
Q4 25
$162.1M
$125.4M
Q3 25
$68.2M
$167.8M
Q2 25
$146.5M
$87.7M
Q1 25
$53.2M
$90.4M
Q4 24
$94.6M
$72.9M
Q3 24
$100.3M
$126.0M
Q2 24
$58.1M
$141.5M
Q1 24
$139.6M
$87.0M
Free Cash Flow
CSGP
CSGP
DCI
DCI
Q4 25
$101.3M
$111.2M
Q3 25
$-5.5M
$147.5M
Q2 25
$27.7M
$73.0M
Q1 25
$-500.0K
$71.5M
Q4 24
$25.2M
$47.9M
Q3 24
$40.2M
$106.2M
Q2 24
$-14.7M
$120.2M
Q1 24
$-237.1M
$65.7M
FCF Margin
CSGP
CSGP
DCI
DCI
Q4 25
11.3%
11.9%
Q3 25
-0.7%
15.0%
Q2 25
3.5%
7.8%
Q1 25
-0.1%
8.2%
Q4 24
3.6%
5.3%
Q3 24
5.8%
11.4%
Q2 24
-2.2%
13.0%
Q1 24
-36.1%
7.5%
Capex Intensity
CSGP
CSGP
DCI
DCI
Q4 25
6.8%
1.5%
Q3 25
8.8%
2.1%
Q2 25
15.2%
1.6%
Q1 25
7.3%
2.2%
Q4 24
9.8%
2.8%
Q3 24
8.7%
2.1%
Q2 24
10.7%
2.3%
Q1 24
57.4%
2.4%
Cash Conversion
CSGP
CSGP
DCI
DCI
Q4 25
3.49×
1.10×
Q3 25
1.47×
Q2 25
23.63×
1.52×
Q1 25
0.94×
Q4 24
1.58×
0.74×
Q3 24
1.89×
1.15×
Q2 24
3.03×
1.25×
Q1 24
20.84×
0.88×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CSGP
CSGP

Co Star$503.8M56%
Other$283.0M31%
Loop Net$94.7M11%

DCI
DCI

Aftermarket Products$447.1M48%
Industrial Filtration Solutions Products$222.6M24%
Off Road Products$86.5M9%
Life Sciences Segment$80.0M9%
Other$39.1M4%
Aerospace And Defense Products$37.1M4%
On Road Products$23.0M2%

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