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Side-by-side financial comparison of Inspire Medical Systems, Inc. (INSP) and Proto Labs Inc (PRLB). Click either name above to swap in a different company.

Inspire Medical Systems, Inc. is the larger business by last-quarter revenue ($269.1M vs $139.3M, roughly 1.9× Proto Labs Inc). Inspire Medical Systems, Inc. runs the higher net margin — 50.6% vs 5.8%, a 44.8% gap on every dollar of revenue. On growth, Inspire Medical Systems, Inc. posted the faster year-over-year revenue change (12.2% vs 10.4%). Over the past eight quarters, Inspire Medical Systems, Inc.'s revenue compounded faster (28.1% CAGR vs 5.3%).

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.

Protolabs is a company that provides rapid manufacturing of 3D printed, CNC-machined, sheet metal, and injection-molded custom parts for prototyping and production. Markets like medical devices, aerospace, electronics, appliances, automotive and consumer products use these parts. Protolabs' headquarters are located in Maple Plain, Minnesota, with Minnesota-based manufacturing facilities in Plymouth, Brooklyn Park, and Rosemount, along with additional facilities in Nashua, New Hampshire and Ca...

INSP vs PRLB — Head-to-Head

Bigger by revenue
INSP
INSP
1.9× larger
INSP
$269.1M
$139.3M
PRLB
Growing faster (revenue YoY)
INSP
INSP
+1.8% gap
INSP
12.2%
10.4%
PRLB
Higher net margin
INSP
INSP
44.8% more per $
INSP
50.6%
5.8%
PRLB
Faster 2-yr revenue CAGR
INSP
INSP
Annualised
INSP
28.1%
5.3%
PRLB

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
INSP
INSP
PRLB
PRLB
Revenue
$269.1M
$139.3M
Net Profit
$136.1M
$8.1M
Gross Margin
86.6%
45.6%
Operating Margin
17.1%
7.1%
Net Margin
50.6%
5.8%
Revenue YoY
12.2%
10.4%
Net Profit YoY
286.4%
125.4%
EPS (diluted)
$4.57
$0.29

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
PRLB
PRLB
Q1 26
$139.3M
Q4 25
$269.1M
$136.5M
Q3 25
$224.5M
$135.4M
Q2 25
$217.1M
$135.1M
Q1 25
$201.3M
$126.2M
Q4 24
$239.7M
$121.8M
Q3 24
$203.2M
$125.6M
Q2 24
$195.9M
$125.6M
Net Profit
INSP
INSP
PRLB
PRLB
Q1 26
$8.1M
Q4 25
$136.1M
Q3 25
$9.9M
$7.2M
Q2 25
$-3.6M
$4.4M
Q1 25
$3.0M
$3.6M
Q4 24
$35.2M
Q3 24
$18.5M
$7.2M
Q2 24
$9.8M
$4.5M
Gross Margin
INSP
INSP
PRLB
PRLB
Q1 26
45.6%
Q4 25
86.6%
44.2%
Q3 25
85.8%
45.3%
Q2 25
84.0%
44.3%
Q1 25
84.7%
44.1%
Q4 24
85.0%
42.7%
Q3 24
84.1%
45.6%
Q2 24
84.8%
45.0%
Operating Margin
INSP
INSP
PRLB
PRLB
Q1 26
7.1%
Q4 25
17.1%
5.0%
Q3 25
4.3%
6.5%
Q2 25
-1.5%
3.7%
Q1 25
-0.7%
3.6%
Q4 24
13.3%
-1.2%
Q3 24
7.0%
6.8%
Q2 24
2.6%
4.8%
Net Margin
INSP
INSP
PRLB
PRLB
Q1 26
5.8%
Q4 25
50.6%
Q3 25
4.4%
5.3%
Q2 25
-1.7%
3.3%
Q1 25
1.5%
2.9%
Q4 24
14.7%
Q3 24
9.1%
5.7%
Q2 24
5.0%
3.6%
EPS (diluted)
INSP
INSP
PRLB
PRLB
Q1 26
$0.29
Q4 25
$4.57
$0.25
Q3 25
$0.34
$0.30
Q2 25
$-0.12
$0.18
Q1 25
$0.10
$0.15
Q4 24
$1.17
$-0.01
Q3 24
$0.60
$0.29
Q2 24
$0.32
$0.18

Balance Sheet & Financial Strength

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

Metric
INSP
INSP
PRLB
PRLB
Cash + ST InvestmentsLiquidity on hand
$308.3M
$124.0M
Total DebtLower is stronger
Stockholders' EquityBook value
$781.2M
$683.1M
Total Assets
$907.3M
$778.6M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
INSP
INSP
PRLB
PRLB
Q1 26
$124.0M
Q4 25
$308.3M
$128.1M
Q3 25
$322.6M
$119.2M
Q2 25
$300.9M
$103.2M
Q1 25
$369.2M
$96.8M
Q4 24
$445.5M
$103.1M
Q3 24
$411.0M
$100.5M
Q2 24
$439.7M
$112.9M
Stockholders' Equity
INSP
INSP
PRLB
PRLB
Q1 26
$683.1M
Q4 25
$781.2M
$673.9M
Q3 25
$666.5M
$664.7M
Q2 25
$677.8M
$664.7M
Q1 25
$635.7M
$656.8M
Q4 24
$689.7M
$670.2M
Q3 24
$696.6M
$680.0M
Q2 24
$638.1M
$685.2M
Total Assets
INSP
INSP
PRLB
PRLB
Q1 26
$778.6M
Q4 25
$907.3M
$763.4M
Q3 25
$807.7M
$756.9M
Q2 25
$802.2M
$743.3M
Q1 25
$730.8M
$737.5M
Q4 24
$808.4M
$743.5M
Q3 24
$796.2M
$753.8M
Q2 24
$728.4M
$758.2M

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
PRLB
PRLB
Operating Cash FlowLast quarter
$52.5M
$17.5M
Free Cash FlowOCF − Capex
$41.8M
FCF MarginFCF / Revenue
15.5%
Capex IntensityCapex / Revenue
4.0%
Cash ConversionOCF / Net Profit
0.39×
2.16×
TTM Free Cash FlowTrailing 4 quarters
$78.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
INSP
INSP
PRLB
PRLB
Q1 26
$17.5M
Q4 25
$52.5M
$16.5M
Q3 25
$68.5M
$29.1M
Q2 25
$2.7M
$10.6M
Q1 25
$-6.7M
$18.4M
Q4 24
$69.2M
$17.3M
Q3 24
$52.3M
$24.8M
Q2 24
$-78.0K
$14.4M
Free Cash Flow
INSP
INSP
PRLB
PRLB
Q1 26
Q4 25
$41.8M
$8.4M
Q3 25
$58.1M
$25.0M
Q2 25
$-6.3M
$9.1M
Q1 25
$-15.1M
$17.1M
Q4 24
$62.2M
$16.5M
Q3 24
$44.3M
$23.2M
Q2 24
$-12.5M
$10.2M
FCF Margin
INSP
INSP
PRLB
PRLB
Q1 26
Q4 25
15.5%
6.2%
Q3 25
25.9%
18.5%
Q2 25
-2.9%
6.7%
Q1 25
-7.5%
13.6%
Q4 24
25.9%
13.5%
Q3 24
21.8%
18.5%
Q2 24
-6.4%
8.2%
Capex Intensity
INSP
INSP
PRLB
PRLB
Q1 26
Q4 25
4.0%
5.9%
Q3 25
4.6%
3.0%
Q2 25
4.1%
1.1%
Q1 25
4.2%
1.0%
Q4 24
2.9%
0.7%
Q3 24
3.9%
1.2%
Q2 24
6.3%
3.3%
Cash Conversion
INSP
INSP
PRLB
PRLB
Q1 26
2.16×
Q4 25
0.39×
Q3 25
6.90×
4.03×
Q2 25
2.39×
Q1 25
-2.24×
5.11×
Q4 24
1.96×
Q3 24
2.83×
3.44×
Q2 24
-0.01×
3.18×

Financial Flow Comparison

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

Revenue Breakdown by Segment

INSP
INSP

Segment breakdown not available.

PRLB
PRLB

CNC Machining$63.2M45%
Injection Molding$51.1M37%
3D Printing$20.5M15%
Sheet Metal$4.4M3%
Other Revenue$207.0K0%

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