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Side-by-side financial comparison of Clean Energy Fuels Corp. (CLNE) 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 $112.3M, roughly 1.4× Clean Energy Fuels Corp.). Ribbon Communications Inc. runs the higher net margin — 54.8% vs -38.3%, a 93.1% gap on every dollar of revenue. On growth, Clean Energy Fuels Corp. posted the faster year-over-year revenue change (2.7% vs -10.3%). Over the past eight quarters, Clean Energy Fuels Corp.'s revenue compounded faster (4.1% CAGR vs -8.1%).

Bloom Energy is an American public company that designs and manufactures solid oxide fuel cells (SOFCs) which independently produce electricity onsite for power generation in data centers, manufacturing, and other commercial sectors. Founded in 2001 and headquartered in San Jose, California; its fuel cell technology generates electricity through a chemical conversion process, which differs from most other power sources reliant on combustion, and can use natural gas, biogas or hydrogen as fuel...

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.

CLNE vs RBBN — Head-to-Head

Bigger by revenue
RBBN
RBBN
1.4× larger
RBBN
$162.6M
$112.3M
CLNE
Growing faster (revenue YoY)
CLNE
CLNE
+13.0% gap
CLNE
2.7%
-10.3%
RBBN
Higher net margin
RBBN
RBBN
93.1% more per $
RBBN
54.8%
-38.3%
CLNE
Faster 2-yr revenue CAGR
CLNE
CLNE
Annualised
CLNE
4.1%
-8.1%
RBBN

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
CLNE
CLNE
RBBN
RBBN
Revenue
$112.3M
$162.6M
Net Profit
$-43.0M
$89.1M
Gross Margin
42.9%
Operating Margin
-9.5%
Net Margin
-38.3%
54.8%
Revenue YoY
2.7%
-10.3%
Net Profit YoY
-42.6%
EPS (diluted)
$-0.21
$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
CLNE
CLNE
RBBN
RBBN
Q1 26
$162.6M
Q4 25
$112.3M
$227.3M
Q3 25
$106.1M
$215.4M
Q2 25
$102.6M
$220.6M
Q1 25
$103.8M
$181.3M
Q4 24
$109.3M
$251.4M
Q3 24
$104.9M
$210.2M
Q2 24
$98.0M
$192.6M
Net Profit
CLNE
CLNE
RBBN
RBBN
Q1 26
$89.1M
Q4 25
$-43.0M
Q3 25
$-23.8M
$-12.1M
Q2 25
$-20.2M
$-11.1M
Q1 25
$-135.0M
$-26.2M
Q4 24
$-30.2M
Q3 24
$-18.2M
$-13.4M
Q2 24
$-16.3M
$-16.8M
Gross Margin
CLNE
CLNE
RBBN
RBBN
Q1 26
42.9%
Q4 25
53.3%
Q3 25
50.1%
Q2 25
49.6%
Q1 25
45.4%
Q4 24
55.7%
Q3 24
52.1%
Q2 24
50.8%
Operating Margin
CLNE
CLNE
RBBN
RBBN
Q1 26
Q4 25
-9.5%
4.1%
Q3 25
-12.8%
1.3%
Q2 25
-9.0%
1.9%
Q1 25
-121.7%
-10.8%
Q4 24
-11.8%
13.2%
Q3 24
-8.1%
-0.4%
Q2 24
-5.7%
-1.0%
Net Margin
CLNE
CLNE
RBBN
RBBN
Q1 26
54.8%
Q4 25
-38.3%
Q3 25
-22.4%
-5.6%
Q2 25
-19.7%
-5.0%
Q1 25
-130.1%
-14.5%
Q4 24
-27.6%
Q3 24
-17.3%
-6.4%
Q2 24
-16.6%
-8.7%
EPS (diluted)
CLNE
CLNE
RBBN
RBBN
Q1 26
$0.50
Q4 25
$-0.21
$0.50
Q3 25
$-0.11
$-0.07
Q2 25
$-0.09
$-0.06
Q1 25
$-0.60
$-0.15
Q4 24
$-0.14
$0.05
Q3 24
$-0.08
$-0.08
Q2 24
$-0.07
$-0.10

Balance Sheet & Financial Strength

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

Metric
CLNE
CLNE
RBBN
RBBN
Cash + ST InvestmentsLiquidity on hand
$156.1M
$67.6M
Total DebtLower is stronger
$226.8M
Stockholders' EquityBook value
$559.4M
$419.1M
Total Assets
$1.1B
Debt / EquityLower = less leverage
0.41×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CLNE
CLNE
RBBN
RBBN
Q1 26
$67.6M
Q4 25
$156.1M
$96.4M
Q3 25
$232.2M
$74.8M
Q2 25
$240.8M
$60.5M
Q1 25
$226.6M
$71.2M
Q4 24
$217.5M
$87.8M
Q3 24
$243.5M
$37.2M
Q2 24
$249.3M
$64.6M
Total Debt
CLNE
CLNE
RBBN
RBBN
Q1 26
Q4 25
$226.8M
$342.1M
Q3 25
$284.3M
$344.3M
Q2 25
$277.9M
$346.5M
Q1 25
$271.6M
$347.4M
Q4 24
$265.4M
$348.3M
Q3 24
$264.1M
$349.1M
Q2 24
$263.0M
$350.0M
Stockholders' Equity
CLNE
CLNE
RBBN
RBBN
Q1 26
$419.1M
Q4 25
$559.4M
$449.0M
Q3 25
$585.2M
$360.1M
Q2 25
$590.8M
$370.4M
Q1 25
$596.7M
$381.8M
Q4 24
$713.3M
$404.6M
Q3 24
$724.8M
$395.5M
Q2 24
$723.0M
$405.0M
Total Assets
CLNE
CLNE
RBBN
RBBN
Q1 26
Q4 25
$1.1B
$1.2B
Q3 25
$1.1B
$1.1B
Q2 25
$1.1B
$1.1B
Q1 25
$1.1B
$1.1B
Q4 24
$1.2B
$1.2B
Q3 24
$1.2B
$1.1B
Q2 24
$1.2B
$1.1B
Debt / Equity
CLNE
CLNE
RBBN
RBBN
Q1 26
Q4 25
0.41×
0.76×
Q3 25
0.49×
0.96×
Q2 25
0.47×
0.94×
Q1 25
0.46×
0.91×
Q4 24
0.37×
0.86×
Q3 24
0.36×
0.88×
Q2 24
0.36×
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
CLNE
CLNE
RBBN
RBBN
Operating Cash FlowLast quarter
$13.1M
Free Cash FlowOCF − Capex
$6.5M
FCF MarginFCF / Revenue
5.8%
Capex IntensityCapex / Revenue
5.9%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$59.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CLNE
CLNE
RBBN
RBBN
Q1 26
Q4 25
$13.1M
$29.2M
Q3 25
$13.1M
$26.5M
Q2 25
$35.9M
$-795.0K
Q1 25
$23.4M
$-3.5M
Q4 24
$21.9M
$61.8M
Q3 24
$21.4M
$-14.8M
Q2 24
$18.8M
$-9.8M
Free Cash Flow
CLNE
CLNE
RBBN
RBBN
Q1 26
Q4 25
$6.5M
$27.3M
Q3 25
$6.5M
$21.0M
Q2 25
$30.9M
$-6.5M
Q1 25
$15.9M
$-15.7M
Q4 24
$10.3M
$53.8M
Q3 24
$42.0K
$-23.7M
Q2 24
$4.8M
$-12.9M
FCF Margin
CLNE
CLNE
RBBN
RBBN
Q1 26
Q4 25
5.8%
12.0%
Q3 25
6.1%
9.7%
Q2 25
30.2%
-2.9%
Q1 25
15.4%
-8.7%
Q4 24
9.5%
21.4%
Q3 24
0.0%
-11.3%
Q2 24
4.9%
-6.7%
Capex Intensity
CLNE
CLNE
RBBN
RBBN
Q1 26
Q4 25
5.9%
0.9%
Q3 25
6.2%
2.6%
Q2 25
4.8%
2.6%
Q1 25
7.2%
6.7%
Q4 24
10.5%
3.2%
Q3 24
20.3%
4.2%
Q2 24
14.2%
1.6%

Financial Flow Comparison

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

Revenue Breakdown by Segment

CLNE
CLNE

Volume Related Fuel Sales$73.6M66%
Services$15.1M13%
Station Construction Sales$10.7M9%
Volume Related Renewable Identification Number Credits$9.5M8%
Volume Related Low Carbon Fuel Standard Credits$3.4M3%

RBBN
RBBN

Service$94.5M58%
Product$68.1M42%

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