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Side-by-side financial comparison of AtriCure, Inc. (ATRC) and Ribbon Communications Inc. (RBBN). Click either name above to swap in a different company.

Ribbon Communications Inc. is the larger business by last-quarter revenue ($162.6M vs $140.5M, roughly 1.2× AtriCure, Inc.). On growth, AtriCure, Inc. posted the faster year-over-year revenue change (13.1% vs -10.3%). Over the past eight quarters, AtriCure, Inc.'s revenue compounded faster (13.6% CAGR vs -8.1%).

AtriCure, Inc. is a global medical device company specializing in the research, development, and manufacturing of innovative surgical tools and therapeutic solutions for treating atrial fibrillation and associated cardiac conditions. Its core customers include hospitals, cardiac surgery centers, and healthcare providers across North America, Europe, and the Asia Pacific region, with products designed to support safer, more effective minimally invasive cardiac procedures.

Ribbon Communications Inc. is a public company that makes software, IP and optical networking solutions for service providers, enterprises and critical infrastructure sectors. The company was formed in 2017, following the merger of Genband and Sonus Networks and is headquartered in Plano, Texas.

ATRC vs RBBN — Head-to-Head

Bigger by revenue
RBBN
RBBN
1.2× larger
RBBN
$162.6M
$140.5M
ATRC
Growing faster (revenue YoY)
ATRC
ATRC
+23.4% gap
ATRC
13.1%
-10.3%
RBBN
Faster 2-yr revenue CAGR
ATRC
ATRC
Annualised
ATRC
13.6%
-8.1%
RBBN

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
ATRC
ATRC
RBBN
RBBN
Revenue
$140.5M
$162.6M
Net Profit
$89.1M
Gross Margin
75.0%
42.9%
Operating Margin
1.8%
37.6%
Net Margin
54.8%
Revenue YoY
13.1%
-10.3%
Net Profit YoY
EPS (diluted)
$0.04
$0.50

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
ATRC
ATRC
RBBN
RBBN
Q1 26
$162.6M
Q4 25
$140.5M
$227.3M
Q3 25
$134.3M
$215.4M
Q2 25
$136.1M
$220.6M
Q1 25
$123.6M
$181.3M
Q4 24
$124.3M
$251.4M
Q3 24
$115.9M
$210.2M
Q2 24
$116.3M
$192.6M
Net Profit
ATRC
ATRC
RBBN
RBBN
Q1 26
$89.1M
Q4 25
Q3 25
$-267.0K
$-12.1M
Q2 25
$-6.2M
$-11.1M
Q1 25
$-6.7M
$-26.2M
Q4 24
Q3 24
$-7.9M
$-13.4M
Q2 24
$-8.0M
$-16.8M
Gross Margin
ATRC
ATRC
RBBN
RBBN
Q1 26
42.9%
Q4 25
75.0%
53.3%
Q3 25
75.5%
50.1%
Q2 25
74.5%
49.6%
Q1 25
74.9%
45.4%
Q4 24
74.5%
55.7%
Q3 24
74.9%
52.1%
Q2 24
74.7%
50.8%
Operating Margin
ATRC
ATRC
RBBN
RBBN
Q1 26
37.6%
Q4 25
1.8%
4.1%
Q3 25
0.2%
1.3%
Q2 25
-4.5%
1.9%
Q1 25
-4.8%
-10.8%
Q4 24
-11.7%
13.2%
Q3 24
-6.4%
-0.4%
Q2 24
-6.2%
-1.0%
Net Margin
ATRC
ATRC
RBBN
RBBN
Q1 26
54.8%
Q4 25
Q3 25
-0.2%
-5.6%
Q2 25
-4.5%
-5.0%
Q1 25
-5.5%
-14.5%
Q4 24
Q3 24
-6.8%
-6.4%
Q2 24
-6.9%
-8.7%
EPS (diluted)
ATRC
ATRC
RBBN
RBBN
Q1 26
$0.50
Q4 25
$0.04
$0.50
Q3 25
$-0.01
$-0.07
Q2 25
$-0.13
$-0.06
Q1 25
$-0.14
$-0.15
Q4 24
$-0.33
$0.05
Q3 24
$-0.17
$-0.08
Q2 24
$-0.17
$-0.10

Balance Sheet & Financial Strength

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

Metric
ATRC
ATRC
RBBN
RBBN
Cash + ST InvestmentsLiquidity on hand
$167.4M
$67.6M
Total DebtLower is stronger
Stockholders' EquityBook value
$491.9M
$419.1M
Total Assets
$654.2M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ATRC
ATRC
RBBN
RBBN
Q1 26
$67.6M
Q4 25
$167.4M
$96.4M
Q3 25
$147.9M
$74.8M
Q2 25
$117.8M
$60.5M
Q1 25
$99.9M
$71.2M
Q4 24
$122.7M
$87.8M
Q3 24
$130.3M
$37.2M
Q2 24
$114.0M
$64.6M
Total Debt
ATRC
ATRC
RBBN
RBBN
Q1 26
Q4 25
$342.1M
Q3 25
$61.9M
$344.3M
Q2 25
$61.9M
$346.5M
Q1 25
$61.9M
$347.4M
Q4 24
$348.3M
Q3 24
$61.9M
$349.1M
Q2 24
$61.9M
$350.0M
Stockholders' Equity
ATRC
ATRC
RBBN
RBBN
Q1 26
$419.1M
Q4 25
$491.9M
$449.0M
Q3 25
$476.5M
$360.1M
Q2 25
$464.5M
$370.4M
Q1 25
$454.6M
$381.8M
Q4 24
$461.0M
$404.6M
Q3 24
$465.0M
$395.5M
Q2 24
$462.1M
$405.0M
Total Assets
ATRC
ATRC
RBBN
RBBN
Q1 26
Q4 25
$654.2M
$1.2B
Q3 25
$635.4M
$1.1B
Q2 25
$608.8M
$1.1B
Q1 25
$591.6M
$1.1B
Q4 24
$609.3M
$1.2B
Q3 24
$615.1M
$1.1B
Q2 24
$597.3M
$1.1B
Debt / Equity
ATRC
ATRC
RBBN
RBBN
Q1 26
Q4 25
0.76×
Q3 25
0.13×
0.96×
Q2 25
0.13×
0.94×
Q1 25
0.14×
0.91×
Q4 24
0.86×
Q3 24
0.13×
0.88×
Q2 24
0.13×
0.86×

Cash Flow & Capital Efficiency

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

Metric
ATRC
ATRC
RBBN
RBBN
Operating Cash FlowLast quarter
$20.0M
Free Cash FlowOCF − Capex
$18.4M
FCF MarginFCF / Revenue
13.1%
Capex IntensityCapex / Revenue
1.1%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$48.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ATRC
ATRC
RBBN
RBBN
Q1 26
Q4 25
$20.0M
$29.2M
Q3 25
$26.7M
$26.5M
Q2 25
$21.6M
$-795.0K
Q1 25
$-11.0M
$-3.5M
Q4 24
$5.8M
$61.8M
Q3 24
$20.0M
$-14.8M
Q2 24
$7.4M
$-9.8M
Free Cash Flow
ATRC
ATRC
RBBN
RBBN
Q1 26
Q4 25
$18.4M
$27.3M
Q3 25
$24.1M
$21.0M
Q2 25
$19.0M
$-6.5M
Q1 25
$-13.2M
$-15.7M
Q4 24
$3.1M
$53.8M
Q3 24
$16.4M
$-23.7M
Q2 24
$5.0M
$-12.9M
FCF Margin
ATRC
ATRC
RBBN
RBBN
Q1 26
Q4 25
13.1%
12.0%
Q3 25
18.0%
9.7%
Q2 25
13.9%
-2.9%
Q1 25
-10.7%
-8.7%
Q4 24
2.5%
21.4%
Q3 24
14.1%
-11.3%
Q2 24
4.3%
-6.7%
Capex Intensity
ATRC
ATRC
RBBN
RBBN
Q1 26
Q4 25
1.1%
0.9%
Q3 25
1.9%
2.6%
Q2 25
2.0%
2.6%
Q1 25
1.8%
6.7%
Q4 24
2.2%
3.2%
Q3 24
3.1%
4.2%
Q2 24
2.1%
1.6%

Financial Flow Comparison

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

Revenue Breakdown by Segment

ATRC
ATRC

Appendage Management$45.5M32%
Openheart$38.5M27%
Other$26.2M19%
Pain Management$22.6M16%
Minimally Invasive$7.7M6%

RBBN
RBBN

Service$94.5M58%
Product$68.1M42%

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