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Side-by-side financial comparison of Certara, Inc. (CERT) and Zhihu Inc. (ZH). Click either name above to swap in a different company.

Certara, Inc. is the larger business by last-quarter revenue ($103.6M vs $92.0M, roughly 1.1× Zhihu Inc.). Zhihu Inc. runs the higher net margin — 32.7% vs -5.7%, a 38.4% gap on every dollar of revenue. Over the past eight quarters, Certara, Inc.'s revenue compounded faster (3.6% CAGR vs -19.0%).

Certara is a global leader in biopharmaceutical software and consulting services, specializing in modeling, simulation, and regulatory science solutions. It serves pharmaceutical companies, biotech firms and healthcare stakeholders across all drug development stages, helping accelerate new therapy launches, lower R&D risks and cut overall development costs.

Zhihu is a Chinese social question and answer site and news aggregator. Originally based in Chengdu and with creators from Sichuan, China, the website launched on January 26, 2011. The number of registered users on Zhihu exceeded 10 million by the end of 2013, and reached 17 million as of May 2015, with 250 million monthly page views.

CERT vs ZH — Head-to-Head

Bigger by revenue
CERT
CERT
1.1× larger
CERT
$103.6M
$92.0M
ZH
Higher net margin
ZH
ZH
38.4% more per $
ZH
32.7%
-5.7%
CERT
Faster 2-yr revenue CAGR
CERT
CERT
Annualised
CERT
3.6%
-19.0%
ZH

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
CERT
CERT
ZH
ZH
Revenue
$103.6M
$92.0M
Net Profit
$-5.9M
$30.1M
Gross Margin
53.6%
Operating Margin
0.8%
Net Margin
-5.7%
32.7%
Revenue YoY
3.3%
Net Profit YoY
-189.6%
EPS (diluted)
$-0.04

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
CERT
CERT
ZH
ZH
Q1 26
$92.0M
Q4 25
$103.6M
Q3 25
$104.6M
$92.6M
Q2 25
$104.6M
$100.1M
Q1 25
$106.0M
$100.6M
Q4 24
$100.4M
Q3 24
$94.8M
$120.4M
Q2 24
$93.3M
$128.5M
Net Profit
CERT
CERT
ZH
ZH
Q1 26
$30.1M
Q4 25
$-5.9M
Q3 25
$1.5M
Q2 25
$-2.0M
Q1 25
$4.7M
Q4 24
$6.6M
Q3 24
$-1.4M
$-1.3M
Q2 24
$-12.6M
$-11.1M
Gross Margin
CERT
CERT
ZH
ZH
Q1 26
53.6%
Q4 25
Q3 25
61.3%
Q2 25
62.5%
Q1 25
61.8%
Q4 24
Q3 24
63.9%
Q2 24
59.6%
Operating Margin
CERT
CERT
ZH
ZH
Q1 26
Q4 25
0.8%
Q3 25
2.9%
-15.1%
Q2 25
9.1%
-12.7%
Q1 25
7.2%
Q4 24
6.0%
Q3 24
2.7%
-10.0%
Q2 24
-9.7%
-19.7%
Net Margin
CERT
CERT
ZH
ZH
Q1 26
32.7%
Q4 25
-5.7%
Q3 25
1.5%
Q2 25
-1.9%
Q1 25
4.5%
Q4 24
6.6%
Q3 24
-1.4%
-1.1%
Q2 24
-13.5%
-8.6%
EPS (diluted)
CERT
CERT
ZH
ZH
Q1 26
Q4 25
$-0.04
Q3 25
$0.01
Q2 25
$-0.01
Q1 25
$0.03
Q4 24
$0.04
Q3 24
$-0.01
Q2 24
$-0.08

Balance Sheet & Financial Strength

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

Metric
CERT
CERT
ZH
ZH
Cash + ST InvestmentsLiquidity on hand
$189.4M
$481.8M
Total DebtLower is stronger
$293.1M
Stockholders' EquityBook value
$1.1B
$554.1M
Total Assets
$1.6B
$742.3M
Debt / EquityLower = less leverage
0.28×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CERT
CERT
ZH
ZH
Q1 26
$481.8M
Q4 25
$189.4M
Q3 25
$172.7M
$383.5M
Q2 25
$162.3M
$446.5M
Q1 25
$179.1M
$446.5M
Q4 24
$179.2M
Q3 24
$233.0M
$458.0M
Q2 24
$224.6M
$434.7M
Total Debt
CERT
CERT
ZH
ZH
Q1 26
Q4 25
$293.1M
Q3 25
$293.5M
Q2 25
$294.2M
Q1 25
$294.8M
Q4 24
$295.4M
Q3 24
$296.1M
Q2 24
$296.7M
Stockholders' Equity
CERT
CERT
ZH
ZH
Q1 26
$554.1M
Q4 25
$1.1B
Q3 25
$1.1B
$578.9M
Q2 25
$1.1B
$587.4M
Q1 25
$1.1B
$573.2M
Q4 24
$1.1B
Q3 24
$1.1B
$619.2M
Q2 24
$1.0B
$605.5M
Total Assets
CERT
CERT
ZH
ZH
Q1 26
$742.3M
Q4 25
$1.6B
Q3 25
$1.5B
$772.8M
Q2 25
$1.5B
$802.2M
Q1 25
$1.6B
$783.1M
Q4 24
$1.6B
Q3 24
$1.5B
$856.2M
Q2 24
$1.5B
$840.5M
Debt / Equity
CERT
CERT
ZH
ZH
Q1 26
Q4 25
0.28×
Q3 25
0.28×
Q2 25
0.27×
Q1 25
0.27×
Q4 24
0.28×
Q3 24
0.28×
Q2 24
0.28×

Cash Flow & Capital Efficiency

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

Metric
CERT
CERT
ZH
ZH
Operating Cash FlowLast quarter
$28.8M
Free Cash FlowOCF − Capex
$27.8M
FCF MarginFCF / Revenue
26.8%
Capex IntensityCapex / Revenue
1.0%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$94.4M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CERT
CERT
ZH
ZH
Q1 26
Q4 25
$28.8M
Q3 25
$32.3M
Q2 25
$17.8M
Q1 25
$17.4M
Q4 24
$49.4M
Q3 24
$17.0M
Q2 24
$9.8M
Free Cash Flow
CERT
CERT
ZH
ZH
Q1 26
Q4 25
$27.8M
Q3 25
$32.1M
Q2 25
$17.8M
Q1 25
$16.8M
Q4 24
$49.0M
Q3 24
$16.8M
Q2 24
$9.4M
FCF Margin
CERT
CERT
ZH
ZH
Q1 26
Q4 25
26.8%
Q3 25
30.7%
Q2 25
17.0%
Q1 25
15.8%
Q4 24
48.8%
Q3 24
17.7%
Q2 24
10.1%
Capex Intensity
CERT
CERT
ZH
ZH
Q1 26
Q4 25
1.0%
Q3 25
0.2%
Q2 25
0.1%
Q1 25
0.6%
Q4 24
0.4%
Q3 24
0.2%
Q2 24
0.5%
Cash Conversion
CERT
CERT
ZH
ZH
Q1 26
Q4 25
Q3 25
21.19×
Q2 25
Q1 25
3.66×
Q4 24
7.51×
Q3 24
Q2 24

Financial Flow Comparison

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

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