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

Proto Labs Inc is the larger business by last-quarter revenue ($139.3M vs $80.0M, roughly 1.7× PubMatic, Inc.). On growth, Proto Labs Inc posted the faster year-over-year revenue change (10.4% vs -6.4%). Over the past eight quarters, PubMatic, Inc.'s revenue compounded faster (9.5% CAGR vs 5.3%).

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...

PubMatic, Inc. develops and implements online advertising software and strategies for the digital publishing and advertising industry. PubMatic's sell-side, real-time programmatic ad transaction advertising software puts publishers of websites, videos, and mobile apps into contact with ad buyers by using automated systems, while allowing users to opt-out of having their personal information collected on internet searches. PubMatic has a number of offices in countries around the world.

PRLB vs PUBM — Head-to-Head

Bigger by revenue
PRLB
PRLB
1.7× larger
PRLB
$139.3M
$80.0M
PUBM
Growing faster (revenue YoY)
PRLB
PRLB
+16.8% gap
PRLB
10.4%
-6.4%
PUBM
Faster 2-yr revenue CAGR
PUBM
PUBM
Annualised
PUBM
9.5%
5.3%
PRLB

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
PRLB
PRLB
PUBM
PUBM
Revenue
$139.3M
$80.0M
Net Profit
$8.1M
Gross Margin
45.6%
68.2%
Operating Margin
7.1%
10.6%
Net Margin
5.8%
Revenue YoY
10.4%
-6.4%
Net Profit YoY
125.4%
EPS (diluted)
$0.29
$0.14

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
PRLB
PRLB
PUBM
PUBM
Q1 26
$139.3M
Q4 25
$136.5M
$80.0M
Q3 25
$135.4M
$68.0M
Q2 25
$135.1M
$71.1M
Q1 25
$126.2M
$63.8M
Q4 24
$121.8M
$85.5M
Q3 24
$125.6M
$71.8M
Q2 24
$125.6M
$67.3M
Net Profit
PRLB
PRLB
PUBM
PUBM
Q1 26
$8.1M
Q4 25
Q3 25
$7.2M
$-6.5M
Q2 25
$4.4M
$-5.2M
Q1 25
$3.6M
$-9.5M
Q4 24
Q3 24
$7.2M
$-912.0K
Q2 24
$4.5M
$2.0M
Gross Margin
PRLB
PRLB
PUBM
PUBM
Q1 26
45.6%
Q4 25
44.2%
68.2%
Q3 25
45.3%
62.6%
Q2 25
44.3%
62.6%
Q1 25
44.1%
59.9%
Q4 24
42.7%
70.8%
Q3 24
45.6%
64.5%
Q2 24
45.0%
62.6%
Operating Margin
PRLB
PRLB
PUBM
PUBM
Q1 26
7.1%
Q4 25
5.0%
10.6%
Q3 25
6.5%
-12.4%
Q2 25
3.7%
-7.7%
Q1 25
3.6%
-18.6%
Q4 24
-1.2%
17.3%
Q3 24
6.8%
-1.9%
Q2 24
4.8%
-5.9%
Net Margin
PRLB
PRLB
PUBM
PUBM
Q1 26
5.8%
Q4 25
Q3 25
5.3%
-9.5%
Q2 25
3.3%
-7.3%
Q1 25
2.9%
-14.9%
Q4 24
Q3 24
5.7%
-1.3%
Q2 24
3.6%
2.9%
EPS (diluted)
PRLB
PRLB
PUBM
PUBM
Q1 26
$0.29
Q4 25
$0.25
$0.14
Q3 25
$0.30
$-0.14
Q2 25
$0.18
$-0.11
Q1 25
$0.15
$-0.20
Q4 24
$-0.01
$0.26
Q3 24
$0.29
$-0.02
Q2 24
$0.18
$0.04

Balance Sheet & Financial Strength

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

Metric
PRLB
PRLB
PUBM
PUBM
Cash + ST InvestmentsLiquidity on hand
$124.0M
$145.5M
Total DebtLower is stronger
Stockholders' EquityBook value
$683.1M
$262.6M
Total Assets
$778.6M
$680.2M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
PRLB
PRLB
PUBM
PUBM
Q1 26
$124.0M
Q4 25
$128.1M
$145.5M
Q3 25
$119.2M
$136.5M
Q2 25
$103.2M
$90.5M
Q1 25
$96.8M
$101.8M
Q4 24
$103.1M
$100.5M
Q3 24
$100.5M
$78.9M
Q2 24
$112.9M
$73.5M
Stockholders' Equity
PRLB
PRLB
PUBM
PUBM
Q1 26
$683.1M
Q4 25
$673.9M
$262.6M
Q3 25
$664.7M
$245.1M
Q2 25
$664.7M
$243.3M
Q1 25
$656.8M
$275.6M
Q4 24
$670.2M
$277.3M
Q3 24
$680.0M
$263.2M
Q2 24
$685.2M
$282.7M
Total Assets
PRLB
PRLB
PUBM
PUBM
Q1 26
$778.6M
Q4 25
$763.4M
$680.2M
Q3 25
$756.9M
$676.2M
Q2 25
$743.3M
$675.2M
Q1 25
$737.5M
$668.6M
Q4 24
$743.5M
$739.5M
Q3 24
$753.8M
$689.1M
Q2 24
$758.2M
$673.1M

Cash Flow & Capital Efficiency

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

Metric
PRLB
PRLB
PUBM
PUBM
Operating Cash FlowLast quarter
$17.5M
$18.2M
Free Cash FlowOCF − Capex
$11.3M
FCF MarginFCF / Revenue
14.1%
Capex IntensityCapex / Revenue
8.6%
Cash ConversionOCF / Net Profit
2.16×
TTM Free Cash FlowTrailing 4 quarters
$66.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
PRLB
PRLB
PUBM
PUBM
Q1 26
$17.5M
Q4 25
$16.5M
$18.2M
Q3 25
$29.1M
$32.4M
Q2 25
$10.6M
$14.9M
Q1 25
$18.4M
$15.6M
Q4 24
$17.3M
$18.0M
Q3 24
$24.8M
$19.1M
Q2 24
$14.4M
$11.9M
Free Cash Flow
PRLB
PRLB
PUBM
PUBM
Q1 26
Q4 25
$8.4M
$11.3M
Q3 25
$25.0M
$27.7M
Q2 25
$9.1M
$13.6M
Q1 25
$17.1M
$14.2M
Q4 24
$16.5M
$13.7M
Q3 24
$23.2M
$7.4M
Q2 24
$10.2M
$11.2M
FCF Margin
PRLB
PRLB
PUBM
PUBM
Q1 26
Q4 25
6.2%
14.1%
Q3 25
18.5%
40.8%
Q2 25
6.7%
19.1%
Q1 25
13.6%
22.2%
Q4 24
13.5%
16.1%
Q3 24
18.5%
10.3%
Q2 24
8.2%
16.7%
Capex Intensity
PRLB
PRLB
PUBM
PUBM
Q1 26
Q4 25
5.9%
8.6%
Q3 25
3.0%
6.9%
Q2 25
1.1%
1.9%
Q1 25
1.0%
2.3%
Q4 24
0.7%
5.1%
Q3 24
1.2%
16.3%
Q2 24
3.3%
1.1%
Cash Conversion
PRLB
PRLB
PUBM
PUBM
Q1 26
2.16×
Q4 25
Q3 25
4.03×
Q2 25
2.39×
Q1 25
5.11×
Q4 24
Q3 24
3.44×
Q2 24
3.18×
6.06×

Financial Flow Comparison

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

Revenue Breakdown by Segment

PRLB
PRLB

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

PUBM
PUBM

Segment breakdown not available.

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