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Side-by-side financial comparison of Inspire Medical Systems, Inc. (INSP) and POWELL INDUSTRIES INC (POWL). Click either name above to swap in a different company.

POWELL INDUSTRIES INC is the larger business by last-quarter revenue ($251.2M vs $204.6M, roughly 1.2× Inspire Medical Systems, Inc.). On growth, POWELL INDUSTRIES INC posted the faster year-over-year revenue change (4.0% vs 1.6%). Over the past eight quarters, Inspire Medical Systems, Inc.'s revenue compounded faster (2.2% CAGR vs -0.8%).

Inspire Medical Systems, Inc. is a medical technology firm that develops, manufactures and commercializes implantable neurostimulation solutions for obstructive sleep apnea. Its core product serves patients intolerant to CPAP therapy, with main markets across North America, Europe, and select Asia-Pacific regions, operating in sleep medicine and otolaryngology segments.

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.

INSP vs POWL — Head-to-Head

Bigger by revenue
POWL
POWL
1.2× larger
POWL
$251.2M
$204.6M
INSP
Growing faster (revenue YoY)
POWL
POWL
+2.4% gap
POWL
4.0%
1.6%
INSP
Faster 2-yr revenue CAGR
INSP
INSP
Annualised
INSP
2.2%
-0.8%
POWL

Income Statement — Q1 FY2026 vs Q1 FY2026

Metric
INSP
INSP
POWL
POWL
Revenue
$204.6M
$251.2M
Net Profit
$41.4M
Gross Margin
86.5%
28.4%
Operating Margin
13.0%
17.0%
Net Margin
16.5%
Revenue YoY
1.6%
4.0%
Net Profit YoY
19.1%
EPS (diluted)
$-0.39
$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
INSP
INSP
POWL
POWL
Q1 26
$204.6M
Q4 25
$269.1M
$251.2M
Q3 25
$224.5M
$298.0M
Q2 25
$217.1M
$286.3M
Q1 25
$201.3M
$278.6M
Q4 24
$239.7M
$241.4M
Q3 24
$203.2M
$275.1M
Q2 24
$195.9M
$288.2M
Net Profit
INSP
INSP
POWL
POWL
Q1 26
Q4 25
$136.1M
$41.4M
Q3 25
$9.9M
$51.4M
Q2 25
$-3.6M
$48.2M
Q1 25
$3.0M
$46.3M
Q4 24
$35.2M
$34.8M
Q3 24
$18.5M
$46.1M
Q2 24
$9.8M
$46.2M
Gross Margin
INSP
INSP
POWL
POWL
Q1 26
86.5%
Q4 25
86.6%
28.4%
Q3 25
85.8%
31.4%
Q2 25
84.0%
30.7%
Q1 25
84.7%
29.9%
Q4 24
85.0%
24.7%
Q3 24
84.1%
29.2%
Q2 24
84.8%
28.4%
Operating Margin
INSP
INSP
POWL
POWL
Q1 26
13.0%
Q4 25
17.1%
17.0%
Q3 25
4.3%
21.2%
Q2 25
-1.5%
21.0%
Q1 25
-0.7%
21.1%
Q4 24
13.3%
14.7%
Q3 24
7.0%
20.4%
Q2 24
2.6%
19.9%
Net Margin
INSP
INSP
POWL
POWL
Q1 26
Q4 25
50.6%
16.5%
Q3 25
4.4%
17.3%
Q2 25
-1.7%
16.8%
Q1 25
1.5%
16.6%
Q4 24
14.7%
14.4%
Q3 24
9.1%
16.7%
Q2 24
5.0%
16.0%
EPS (diluted)
INSP
INSP
POWL
POWL
Q1 26
$-0.39
Q4 25
$4.57
$3.40
Q3 25
$0.34
$4.23
Q2 25
$-0.12
$3.96
Q1 25
$0.10
$3.81
Q4 24
$1.17
$2.86
Q3 24
$0.60
$3.77
Q2 24
$0.32
$3.79

Balance Sheet & Financial Strength

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

Metric
INSP
INSP
POWL
POWL
Cash + ST InvestmentsLiquidity on hand
$98.9M
$500.8M
Total DebtLower is stronger
Stockholders' EquityBook value
$792.3M
$668.9M
Total Assets
$911.4M
$1.1B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
INSP
INSP
POWL
POWL
Q1 26
$98.9M
Q4 25
$308.3M
$500.8M
Q3 25
$322.6M
$475.5M
Q2 25
$300.9M
$433.0M
Q1 25
$369.2M
$389.3M
Q4 24
$445.5M
$373.4M
Q3 24
$411.0M
$358.4M
Q2 24
$439.7M
$374.0M
Stockholders' Equity
INSP
INSP
POWL
POWL
Q1 26
$792.3M
Q4 25
$781.2M
$668.9M
Q3 25
$666.5M
$640.8M
Q2 25
$677.8M
$594.9M
Q1 25
$635.7M
$541.4M
Q4 24
$689.7M
$496.3M
Q3 24
$696.6M
$483.1M
Q2 24
$638.1M
$436.7M
Total Assets
INSP
INSP
POWL
POWL
Q1 26
$911.4M
Q4 25
$907.3M
$1.1B
Q3 25
$807.7M
$1.1B
Q2 25
$802.2M
$1.0B
Q1 25
$730.8M
$965.4M
Q4 24
$808.4M
$912.7M
Q3 24
$796.2M
$928.2M
Q2 24
$728.4M
$869.0M

Cash Flow & Capital Efficiency

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

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

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
INSP
INSP
POWL
POWL
Q1 26
Q4 25
$52.5M
$43.6M
Q3 25
$68.5M
$61.1M
Q2 25
$2.7M
$47.4M
Q1 25
$-6.7M
$22.4M
Q4 24
$69.2M
$37.1M
Q3 24
$52.3M
$-6.0M
Q2 24
$-78.0K
$13.8M
Free Cash Flow
INSP
INSP
POWL
POWL
Q1 26
Q4 25
$41.8M
$41.6M
Q3 25
$58.1M
$59.3M
Q2 25
$-6.3M
$42.3M
Q1 25
$-15.1M
$18.3M
Q4 24
$62.2M
$34.9M
Q3 24
$44.3M
$-14.4M
Q2 24
$-12.5M
$12.4M
FCF Margin
INSP
INSP
POWL
POWL
Q1 26
Q4 25
15.5%
16.6%
Q3 25
25.9%
19.9%
Q2 25
-2.9%
14.8%
Q1 25
-7.5%
6.6%
Q4 24
25.9%
14.4%
Q3 24
21.8%
-5.3%
Q2 24
-6.4%
4.3%
Capex Intensity
INSP
INSP
POWL
POWL
Q1 26
Q4 25
4.0%
0.8%
Q3 25
4.6%
0.6%
Q2 25
4.1%
1.8%
Q1 25
4.2%
1.5%
Q4 24
2.9%
0.9%
Q3 24
3.9%
3.1%
Q2 24
6.3%
0.5%
Cash Conversion
INSP
INSP
POWL
POWL
Q1 26
Q4 25
0.39×
1.05×
Q3 25
6.90×
1.19×
Q2 25
0.98×
Q1 25
-2.24×
0.48×
Q4 24
1.96×
1.07×
Q3 24
2.83×
-0.13×
Q2 24
-0.01×
0.30×

Financial Flow Comparison

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

Revenue Breakdown by Segment

INSP
INSP

Segment breakdown not available.

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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