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Side-by-side financial comparison of Gogo Inc. (GOGO) and SL GREEN REALTY CORP (SLG). Click either name above to swap in a different company.

SL GREEN REALTY CORP is the larger business by last-quarter revenue ($276.5M vs $230.6M, roughly 1.2× Gogo Inc.). Gogo Inc. runs the higher net margin — -4.3% vs -36.5%, a 32.1% gap on every dollar of revenue. On growth, Gogo Inc. posted the faster year-over-year revenue change (67.3% vs 12.4%). Over the past eight quarters, Gogo Inc.'s revenue compounded faster (48.7% CAGR vs 21.3%).

Gogo Inc. is an American provider of in-flight broadband Internet service and other connectivity services for business aircraft, headquartered in Broomfield, Colorado. Through its Gogo LLC subsidiary, Gogo previously provided in-flight WiFi to 17 airlines until the Commercial Air business was sold to Intelsat for $400 million in December 2020. According to Gogo, over 2,500 commercial aircraft and 6,600 business aircraft have been equipped with its onboard Wi-Fi services. The company is the de...

SL Green Realty Corp. is a real estate investment trust that primarily invests in office buildings and shopping centers in New York City. As of December 31, 2024, the company owned interests in 39 properties comprising 25,297,353 square feet, primarily in Manhattan. It has been referred to as "New York City’s largest office landlord".

GOGO vs SLG — Head-to-Head

Bigger by revenue
SLG
SLG
1.2× larger
SLG
$276.5M
$230.6M
GOGO
Growing faster (revenue YoY)
GOGO
GOGO
+54.9% gap
GOGO
67.3%
12.4%
SLG
Higher net margin
GOGO
GOGO
32.1% more per $
GOGO
-4.3%
-36.5%
SLG
Faster 2-yr revenue CAGR
GOGO
GOGO
Annualised
GOGO
48.7%
21.3%
SLG

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
GOGO
GOGO
SLG
SLG
Revenue
$230.6M
$276.5M
Net Profit
$-10.0M
$-100.8M
Gross Margin
Operating Margin
6.2%
64.2%
Net Margin
-4.3%
-36.5%
Revenue YoY
67.3%
12.4%
Net Profit YoY
64.6%
-870.0%
EPS (diluted)
$-0.08
$-1.49

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
GOGO
GOGO
SLG
SLG
Q4 25
$230.6M
$276.5M
Q3 25
$223.6M
$244.8M
Q2 25
$226.0M
$241.9M
Q1 25
$230.3M
$239.8M
Q4 24
$137.8M
$245.9M
Q3 24
$100.5M
$229.7M
Q2 24
$102.1M
$222.8M
Q1 24
$104.3M
$187.9M
Net Profit
GOGO
GOGO
SLG
SLG
Q4 25
$-10.0M
$-100.8M
Q3 25
$-1.9M
$28.6M
Q2 25
$12.8M
$-7.4M
Q1 25
$12.0M
$-17.3M
Q4 24
$-28.2M
$19.1M
Q3 24
$10.6M
$-9.5M
Q2 24
$839.0K
$1.6M
Q1 24
$30.5M
$16.9M
Gross Margin
GOGO
GOGO
SLG
SLG
Q4 25
Q3 25
Q2 25
87.8%
Q1 25
87.3%
Q4 24
Q3 24
Q2 24
Q1 24
Operating Margin
GOGO
GOGO
SLG
SLG
Q4 25
6.2%
64.2%
Q3 25
12.9%
85.5%
Q2 25
15.9%
53.4%
Q1 25
15.3%
56.7%
Q4 24
-17.5%
59.8%
Q3 24
19.0%
65.1%
Q2 24
21.2%
79.2%
Q1 24
33.2%
Net Margin
GOGO
GOGO
SLG
SLG
Q4 25
-4.3%
-36.5%
Q3 25
-0.9%
11.7%
Q2 25
5.7%
-3.0%
Q1 25
5.2%
-7.2%
Q4 24
-20.5%
7.8%
Q3 24
10.6%
-4.2%
Q2 24
0.8%
0.7%
Q1 24
29.2%
9.0%
EPS (diluted)
GOGO
GOGO
SLG
SLG
Q4 25
$-0.08
$-1.49
Q3 25
$-0.01
$0.34
Q2 25
$0.09
$-0.16
Q1 25
$0.09
$-0.30
Q4 24
$-0.22
$0.13
Q3 24
$0.08
$-0.21
Q2 24
$0.01
$-0.04
Q1 24
$0.23
$0.20

Balance Sheet & Financial Strength

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

Metric
GOGO
GOGO
SLG
SLG
Cash + ST InvestmentsLiquidity on hand
$125.2M
$155.7M
Total DebtLower is stronger
Stockholders' EquityBook value
$101.1M
$3.7B
Total Assets
$1.3B
$11.1B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
GOGO
GOGO
SLG
SLG
Q4 25
$125.2M
$155.7M
Q3 25
$133.6M
$187.0M
Q2 25
$102.1M
$182.9M
Q1 25
$70.3M
$180.1M
Q4 24
$41.8M
$184.3M
Q3 24
$176.7M
$188.2M
Q2 24
$161.6M
$199.5M
Q1 24
$152.8M
$196.0M
Stockholders' Equity
GOGO
GOGO
SLG
SLG
Q4 25
$101.1M
$3.7B
Q3 25
$107.0M
$3.8B
Q2 25
$102.8M
$3.8B
Q1 25
$82.9M
$3.8B
Q4 24
$69.3M
$4.0B
Q3 24
$52.7M
$3.6B
Q2 24
$52.0M
$3.7B
Q1 24
$62.4M
$3.7B
Total Assets
GOGO
GOGO
SLG
SLG
Q4 25
$1.3B
$11.1B
Q3 25
$1.3B
$11.1B
Q2 25
$1.3B
$11.3B
Q1 25
$1.2B
$11.4B
Q4 24
$1.2B
$10.5B
Q3 24
$810.7M
$10.2B
Q2 24
$802.7M
$9.5B
Q1 24
$809.0M
$9.8B

Cash Flow & Capital Efficiency

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

Metric
GOGO
GOGO
SLG
SLG
Operating Cash FlowLast quarter
$8.5M
$82.9M
Free Cash FlowOCF − Capex
$-25.4M
FCF MarginFCF / Revenue
-11.0%
Capex IntensityCapex / Revenue
14.7%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$65.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
GOGO
GOGO
SLG
SLG
Q4 25
$8.5M
$82.9M
Q3 25
$46.8M
$-6.8M
Q2 25
$36.7M
$54.5M
Q1 25
$32.5M
$6.7M
Q4 24
$-38.3M
$129.6M
Q3 24
$25.1M
$16.7M
Q2 24
$24.9M
$79.4M
Q1 24
$29.7M
$-24.7M
Free Cash Flow
GOGO
GOGO
SLG
SLG
Q4 25
$-25.4M
Q3 25
$27.3M
Q2 25
$33.5M
Q1 25
$29.7M
Q4 24
$-42.6M
Q3 24
$20.7M
Q2 24
$21.6M
Q1 24
$28.2M
FCF Margin
GOGO
GOGO
SLG
SLG
Q4 25
-11.0%
Q3 25
12.2%
Q2 25
14.8%
Q1 25
12.9%
Q4 24
-30.9%
Q3 24
20.6%
Q2 24
21.1%
Q1 24
27.0%
Capex Intensity
GOGO
GOGO
SLG
SLG
Q4 25
14.7%
Q3 25
8.7%
Q2 25
1.4%
Q1 25
1.2%
Q4 24
3.1%
Q3 24
4.4%
Q2 24
3.3%
Q1 24
1.4%
Cash Conversion
GOGO
GOGO
SLG
SLG
Q4 25
Q3 25
-0.24×
Q2 25
2.87×
Q1 25
2.70×
Q4 24
6.77×
Q3 24
2.36×
Q2 24
29.74×
50.33×
Q1 24
0.97×
-1.46×

Financial Flow Comparison

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

Revenue Breakdown by Segment

GOGO
GOGO

Services$191.9M83%
Products$38.7M17%
Fcc Reimbursement Program$2.0M1%

SLG
SLG

Real Estate Segment$223.1M81%
Other$35.9M13%
Debt And Preferred Equity Segment$17.4M6%

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