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Side-by-side financial comparison of Koppers Holdings Inc. (KOP) and POWELL INDUSTRIES INC (POWL). Click either name above to swap in a different company.

Koppers Holdings Inc. is the larger business by last-quarter revenue ($432.7M vs $251.2M, roughly 1.7× POWELL INDUSTRIES INC). POWELL INDUSTRIES INC runs the higher net margin — 16.5% vs 6.9%, a 9.6% gap on every dollar of revenue. On growth, POWELL INDUSTRIES INC posted the faster year-over-year revenue change (4.0% vs -9.3%). POWELL INDUSTRIES INC produced more free cash flow last quarter ($41.6M vs $28.5M). Over the past eight quarters, POWELL INDUSTRIES INC's revenue compounded faster (-0.8% CAGR vs -6.7%).

Koppers is a global chemical and materials company based in Pittsburgh, Pennsylvania, United States. Its headquarters is an art-deco 1920s skyscraper, the Koppers Tower.

Powell Industries, Inc. is a manufacturer of Integrated/Packaged Solutions and Electrical Equipment to monitor and control the distribution of electrical power in commercial and industrial markets founded in 1947. Its headquarters is in Houston, Texas.

KOP vs POWL — Head-to-Head

Bigger by revenue
KOP
KOP
1.7× larger
KOP
$432.7M
$251.2M
POWL
Growing faster (revenue YoY)
POWL
POWL
+13.3% gap
POWL
4.0%
-9.3%
KOP
Higher net margin
POWL
POWL
9.6% more per $
POWL
16.5%
6.9%
KOP
More free cash flow
POWL
POWL
$13.1M more FCF
POWL
$41.6M
$28.5M
KOP
Faster 2-yr revenue CAGR
POWL
POWL
Annualised
POWL
-0.8%
-6.7%
KOP

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
KOP
KOP
POWL
POWL
Revenue
$432.7M
$251.2M
Net Profit
$29.7M
$41.4M
Gross Margin
25.6%
28.4%
Operating Margin
11.5%
17.0%
Net Margin
6.9%
16.5%
Revenue YoY
-9.3%
4.0%
Net Profit YoY
391.2%
19.1%
EPS (diluted)
$1.44
$3.40

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
KOP
KOP
POWL
POWL
Q4 25
$432.7M
$251.2M
Q3 25
$485.3M
$298.0M
Q2 25
$504.8M
$286.3M
Q1 25
$456.5M
$278.6M
Q4 24
$477.0M
$241.4M
Q3 24
$554.3M
$275.1M
Q2 24
$563.2M
$288.2M
Q1 24
$497.6M
$255.1M
Net Profit
KOP
KOP
POWL
POWL
Q4 25
$29.7M
$41.4M
Q3 25
$23.8M
$51.4M
Q2 25
$16.4M
$48.2M
Q1 25
$-13.9M
$46.3M
Q4 24
$-10.2M
$34.8M
Q3 24
$22.8M
$46.1M
Q2 24
$26.8M
$46.2M
Q1 24
$13.0M
$33.5M
Gross Margin
KOP
KOP
POWL
POWL
Q4 25
25.6%
28.4%
Q3 25
24.1%
31.4%
Q2 25
22.6%
30.7%
Q1 25
23.2%
29.9%
Q4 24
17.5%
24.7%
Q3 24
21.9%
29.2%
Q2 24
21.6%
28.4%
Q1 24
19.3%
24.6%
Operating Margin
KOP
KOP
POWL
POWL
Q4 25
11.5%
17.0%
Q3 25
10.7%
21.2%
Q2 25
7.7%
21.0%
Q1 25
5.9%
21.1%
Q4 24
1.3%
14.7%
Q3 24
9.0%
20.4%
Q2 24
10.2%
19.9%
Q1 24
7.0%
15.5%
Net Margin
KOP
KOP
POWL
POWL
Q4 25
6.9%
16.5%
Q3 25
4.9%
17.3%
Q2 25
3.2%
16.8%
Q1 25
-3.0%
16.6%
Q4 24
-2.1%
14.4%
Q3 24
4.1%
16.7%
Q2 24
4.8%
16.0%
Q1 24
2.6%
13.1%
EPS (diluted)
KOP
KOP
POWL
POWL
Q4 25
$1.44
$3.40
Q3 25
$1.17
$4.23
Q2 25
$0.81
$3.96
Q1 25
$-0.68
$3.81
Q4 24
$-0.47
$2.86
Q3 24
$1.09
$3.77
Q2 24
$1.25
$3.79
Q1 24
$0.59
$2.75

Balance Sheet & Financial Strength

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

Metric
KOP
KOP
POWL
POWL
Cash + ST InvestmentsLiquidity on hand
$500.8M
Total DebtLower is stronger
$928.3M
Stockholders' EquityBook value
$574.0M
$668.9M
Total Assets
$1.9B
$1.1B
Debt / EquityLower = less leverage
1.62×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
KOP
KOP
POWL
POWL
Q4 25
$500.8M
Q3 25
$475.5M
Q2 25
$433.0M
Q1 25
$389.3M
Q4 24
$373.4M
Q3 24
$358.4M
Q2 24
$374.0M
Q1 24
$365.3M
Total Debt
KOP
KOP
POWL
POWL
Q4 25
$928.3M
Q3 25
$932.9M
Q2 25
$977.5M
Q1 25
$989.0M
Q4 24
$939.5M
Q3 24
$989.4M
Q2 24
$1.0B
Q1 24
$877.6M
Stockholders' Equity
KOP
KOP
POWL
POWL
Q4 25
$574.0M
$668.9M
Q3 25
$545.6M
$640.8M
Q2 25
$526.8M
$594.9M
Q1 25
$498.0M
$541.4M
Q4 24
$488.7M
$496.3M
Q3 24
$532.3M
$483.1M
Q2 24
$509.2M
$436.7M
Q1 24
$505.8M
$393.8M
Total Assets
KOP
KOP
POWL
POWL
Q4 25
$1.9B
$1.1B
Q3 25
$1.9B
$1.1B
Q2 25
$1.9B
$1.0B
Q1 25
$1.9B
$965.4M
Q4 24
$1.9B
$912.7M
Q3 24
$2.0B
$928.2M
Q2 24
$1.9B
$869.0M
Q1 24
$1.8B
$849.6M
Debt / Equity
KOP
KOP
POWL
POWL
Q4 25
1.62×
Q3 25
1.71×
Q2 25
1.86×
Q1 25
1.99×
Q4 24
1.92×
Q3 24
1.86×
Q2 24
1.97×
Q1 24
1.74×

Cash Flow & Capital Efficiency

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

Metric
KOP
KOP
POWL
POWL
Operating Cash FlowLast quarter
$45.1M
$43.6M
Free Cash FlowOCF − Capex
$28.5M
$41.6M
FCF MarginFCF / Revenue
6.6%
16.6%
Capex IntensityCapex / Revenue
3.8%
0.8%
Cash ConversionOCF / Net Profit
1.52×
1.05×
TTM Free Cash FlowTrailing 4 quarters
$67.5M
$161.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
KOP
KOP
POWL
POWL
Q4 25
$45.1M
$43.6M
Q3 25
$49.6M
$61.1M
Q2 25
$50.5M
$47.4M
Q1 25
$-22.7M
$22.4M
Q4 24
$74.7M
$37.1M
Q3 24
$29.8M
$-6.0M
Q2 24
$27.2M
$13.8M
Q1 24
$-12.3M
$17.0M
Free Cash Flow
KOP
KOP
POWL
POWL
Q4 25
$28.5M
$41.6M
Q3 25
$37.6M
$59.3M
Q2 25
$38.4M
$42.3M
Q1 25
$-37.0M
$18.3M
Q4 24
$56.1M
$34.9M
Q3 24
$14.4M
$-14.4M
Q2 24
$10.1M
$12.4M
Q1 24
$-38.6M
$16.1M
FCF Margin
KOP
KOP
POWL
POWL
Q4 25
6.6%
16.6%
Q3 25
7.7%
19.9%
Q2 25
7.6%
14.8%
Q1 25
-8.1%
6.6%
Q4 24
11.8%
14.4%
Q3 24
2.6%
-5.3%
Q2 24
1.8%
4.3%
Q1 24
-7.8%
6.3%
Capex Intensity
KOP
KOP
POWL
POWL
Q4 25
3.8%
0.8%
Q3 25
2.5%
0.6%
Q2 25
2.4%
1.8%
Q1 25
3.1%
1.5%
Q4 24
3.9%
0.9%
Q3 24
2.8%
3.1%
Q2 24
3.0%
0.5%
Q1 24
5.3%
0.4%
Cash Conversion
KOP
KOP
POWL
POWL
Q4 25
1.52×
1.05×
Q3 25
2.08×
1.19×
Q2 25
3.08×
0.98×
Q1 25
0.48×
Q4 24
1.07×
Q3 24
1.31×
-0.13×
Q2 24
1.01×
0.30×
Q1 24
-0.95×
0.51×

Financial Flow Comparison

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

Revenue Breakdown by Segment

KOP
KOP

Other$127.8M30%
Railroad Treated Products$119.0M28%
Utility Poles$79.8M18%
Pitch And Related Products$74.1M17%
Carbon Black Feedstock And Distillates$14.4M3%
Railroad Infrastructure Products And Services$9.9M2%
Phthalic Anhydride Naphthalene And Other Chemicals$7.7M2%

POWL
POWL

Oil And Gas Service$97.9M39%
Electricity$69.3M28%
Commercial And Other Industrial$40.6M16%
Petrochemical$22.8M9%
Other Customers$12.0M5%
Light Rail Traction Power Customer$8.6M3%

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