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Side-by-side financial comparison of Fastly, Inc. (FSLY) and HA Sustainable Infrastructure Capital, Inc. (HASI). Click either name above to swap in a different company.

Fastly, Inc. is the larger business by last-quarter revenue ($172.6M vs $114.8M, roughly 1.5× HA Sustainable Infrastructure Capital, Inc.). Fastly, Inc. runs the higher net margin — -9.0% vs -46.8%, a 37.8% gap on every dollar of revenue. On growth, Fastly, Inc. posted the faster year-over-year revenue change (22.8% vs 13.3%). Over the past eight quarters, Fastly, Inc.'s revenue compounded faster (13.7% CAGR vs 4.2%).

Fastly, Inc. is an American company based in San Francisco, which describes itself as a cloud computing company. Fastly provides content delivery network services, image optimization, and load balancing services. Fastly's cloud security services include denial-of-service attack protection, bot mitigation, and a web application firewall.

HA Sustainable Infrastructure Capital, Inc. (HASI) is a specialized investment firm focused on sustainable infrastructure assets covering renewable energy, energy efficiency, sustainable real estate and low-carbon utility segments. It primarily operates in North American markets, providing long-term capital to eligible sustainable projects and delivering stable risk-adjusted returns to investors through recurring cash flows from operational underlying assets.

FSLY vs HASI — Head-to-Head

Bigger by revenue
FSLY
FSLY
1.5× larger
FSLY
$172.6M
$114.8M
HASI
Growing faster (revenue YoY)
FSLY
FSLY
+9.4% gap
FSLY
22.8%
13.3%
HASI
Higher net margin
FSLY
FSLY
37.8% more per $
FSLY
-9.0%
-46.8%
HASI
Faster 2-yr revenue CAGR
FSLY
FSLY
Annualised
FSLY
13.7%
4.2%
HASI

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
FSLY
FSLY
HASI
HASI
Revenue
$172.6M
$114.8M
Net Profit
$-15.5M
$-53.8M
Gross Margin
61.4%
Operating Margin
-8.7%
-57.4%
Net Margin
-9.0%
-46.8%
Revenue YoY
22.8%
13.3%
Net Profit YoY
52.9%
-176.7%
EPS (diluted)
$-0.10
$-0.38

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
FSLY
FSLY
HASI
HASI
Q4 25
$172.6M
$114.8M
Q3 25
$158.2M
$103.1M
Q2 25
$148.7M
$85.7M
Q1 25
$144.5M
$96.9M
Q4 24
$140.6M
$101.3M
Q3 24
$137.2M
$82.0M
Q2 24
$132.4M
$94.5M
Q1 24
$133.5M
$105.8M
Net Profit
FSLY
FSLY
HASI
HASI
Q4 25
$-15.5M
$-53.8M
Q3 25
$-29.5M
$83.3M
Q2 25
$-37.5M
$98.4M
Q1 25
$-39.1M
$56.6M
Q4 24
$-32.9M
$70.1M
Q3 24
$-38.0M
$-19.6M
Q2 24
$-43.7M
$26.5M
Q1 24
$-43.4M
$123.0M
Gross Margin
FSLY
FSLY
HASI
HASI
Q4 25
61.4%
Q3 25
58.4%
Q2 25
54.5%
Q1 25
53.2%
Q4 24
53.4%
Q3 24
54.5%
Q2 24
55.1%
Q1 24
54.8%
Operating Margin
FSLY
FSLY
HASI
HASI
Q4 25
-8.7%
-57.4%
Q3 25
-18.2%
Q2 25
-24.8%
Q1 25
-26.4%
84.7%
Q4 24
-24.4%
90.9%
Q3 24
-29.6%
-32.1%
Q2 24
-35.3%
39.5%
Q1 24
-34.6%
Net Margin
FSLY
FSLY
HASI
HASI
Q4 25
-9.0%
-46.8%
Q3 25
-18.6%
80.8%
Q2 25
-25.2%
114.9%
Q1 25
-27.1%
58.4%
Q4 24
-23.4%
69.2%
Q3 24
-27.7%
-23.9%
Q2 24
-33.0%
28.1%
Q1 24
-32.5%
116.3%
EPS (diluted)
FSLY
FSLY
HASI
HASI
Q4 25
$-0.10
$-0.38
Q3 25
$-0.20
$0.61
Q2 25
$-0.26
$0.74
Q1 25
$-0.27
$0.44
Q4 24
$-0.23
$0.58
Q3 24
$-0.27
$-0.17
Q2 24
$-0.32
$0.23
Q1 24
$-0.32
$0.98

Balance Sheet & Financial Strength

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

Metric
FSLY
FSLY
HASI
HASI
Cash + ST InvestmentsLiquidity on hand
$361.8M
$110.2M
Total DebtLower is stronger
Stockholders' EquityBook value
$929.6M
$2.7B
Total Assets
$1.5B
$8.2B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
FSLY
FSLY
HASI
HASI
Q4 25
$361.8M
$110.2M
Q3 25
$342.9M
$301.8M
Q2 25
$321.2M
$86.5M
Q1 25
$307.3M
$67.4M
Q4 24
$295.9M
$129.8M
Q3 24
$308.2M
$44.1M
Q2 24
$311.8M
$145.7M
Q1 24
$329.5M
$61.4M
Stockholders' Equity
FSLY
FSLY
HASI
HASI
Q4 25
$929.6M
$2.7B
Q3 25
$937.0M
$2.7B
Q2 25
$942.6M
$2.6B
Q1 25
$957.0M
$2.5B
Q4 24
$965.3M
$2.4B
Q3 24
$969.5M
$2.3B
Q2 24
$981.2M
$2.3B
Q1 24
$991.8M
$2.3B
Total Assets
FSLY
FSLY
HASI
HASI
Q4 25
$1.5B
$8.2B
Q3 25
$1.5B
$8.2B
Q2 25
$1.5B
$7.6B
Q1 25
$1.4B
$7.5B
Q4 24
$1.5B
$7.1B
Q3 24
$1.5B
$6.7B
Q2 24
$1.5B
$6.7B
Q1 24
$1.5B
$6.7B

Cash Flow & Capital Efficiency

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

Metric
FSLY
FSLY
HASI
HASI
Operating Cash FlowLast quarter
$22.4M
$167.3M
Free Cash FlowOCF − Capex
$12.2M
FCF MarginFCF / Revenue
7.1%
Capex IntensityCapex / Revenue
5.9%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$65.8M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
FSLY
FSLY
HASI
HASI
Q4 25
$22.4M
$167.3M
Q3 25
$28.9M
$-121.8M
Q2 25
$25.8M
$79.6M
Q1 25
$17.3M
$-37.1M
Q4 24
$5.2M
$5.9M
Q3 24
$5.0M
$21.9M
Q2 24
$-4.9M
$-24.8M
Q1 24
$11.1M
$20.9M
Free Cash Flow
FSLY
FSLY
HASI
HASI
Q4 25
$12.2M
Q3 25
$22.9M
Q2 25
$15.9M
Q1 25
$14.7M
Q4 24
$251.0K
Q3 24
$3.0M
Q2 24
$-6.7M
Q1 24
$9.5M
FCF Margin
FSLY
FSLY
HASI
HASI
Q4 25
7.1%
Q3 25
14.5%
Q2 25
10.7%
Q1 25
10.2%
Q4 24
0.2%
Q3 24
2.2%
Q2 24
-5.1%
Q1 24
7.1%
Capex Intensity
FSLY
FSLY
HASI
HASI
Q4 25
5.9%
Q3 25
3.8%
Q2 25
6.6%
Q1 25
1.8%
Q4 24
3.5%
Q3 24
1.5%
Q2 24
1.3%
Q1 24
1.2%
Cash Conversion
FSLY
FSLY
HASI
HASI
Q4 25
Q3 25
-1.46×
Q2 25
0.81×
Q1 25
-0.66×
Q4 24
0.08×
Q3 24
Q2 24
-0.94×
Q1 24
0.17×

Financial Flow Comparison

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

Revenue Breakdown by Segment

FSLY
FSLY

Network Services$130.8M76%
Security$35.4M21%
Other$6.4M4%

HASI
HASI

Segment breakdown not available.

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