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Side-by-side financial comparison of Castellum, Inc. (CTM) and SS Innovations International, Inc. (SSII). Click either name above to swap in a different company.

SS Innovations International, Inc. is the larger business by last-quarter revenue ($14.5M vs $12.6M, roughly 1.2× Castellum, Inc.). Castellum, Inc. runs the higher net margin — -10.5% vs -17.0%, a 6.5% gap on every dollar of revenue. On growth, SS Innovations International, Inc. posted the faster year-over-year revenue change (79.1% vs 21.9%). Over the past eight quarters, SS Innovations International, Inc.'s revenue compounded faster (99.9% CAGR vs 5.3%).

Castellum, Inc. is a U.S.-based cybersecurity and information technology services provider. It caters to government defense agencies, public sector entities, and commercial enterprise clients, offering threat detection, data protection, cloud security, and managed IT solutions to help organizations mitigate cyber risks and safeguard critical digital infrastructure.

SS Innovations International, Inc. is a global medical technology enterprise specializing in the research, development and manufacturing of innovative surgical robotic systems. It provides high-precision, accessible robotic platforms for minimally invasive surgery, catering to healthcare facilities across multiple regions to boost surgical outcomes and cut procedural burdens.

CTM vs SSII — Head-to-Head

Bigger by revenue
SSII
SSII
1.2× larger
SSII
$14.5M
$12.6M
CTM
Growing faster (revenue YoY)
SSII
SSII
+57.1% gap
SSII
79.1%
21.9%
CTM
Higher net margin
CTM
CTM
6.5% more per $
CTM
-10.5%
-17.0%
SSII
Faster 2-yr revenue CAGR
SSII
SSII
Annualised
SSII
99.9%
5.3%
CTM

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
CTM
CTM
SSII
SSII
Revenue
$12.6M
$14.5M
Net Profit
$-1.3M
$-2.5M
Gross Margin
33.9%
43.9%
Operating Margin
-11.1%
-3.7%
Net Margin
-10.5%
-17.0%
Revenue YoY
21.9%
79.1%
Net Profit YoY
51.8%
-28.5%
EPS (diluted)
$-0.02
$-0.01

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
CTM
CTM
SSII
SSII
Q4 25
$12.6M
$14.5M
Q3 25
$14.6M
$12.8M
Q2 25
$14.0M
$10.0M
Q1 25
$11.7M
$5.1M
Q4 24
$10.3M
$8.1M
Q3 24
$11.6M
$4.4M
Q2 24
$11.5M
$4.5M
Q1 24
$11.3M
$3.6M
Net Profit
CTM
CTM
SSII
SSII
Q4 25
$-1.3M
$-2.5M
Q3 25
$415.4K
$-3.7M
Q2 25
$-322.1K
$-256.7K
Q1 25
$-1.2M
$-5.7M
Q4 24
$-2.7M
$-1.9M
Q3 24
$-1.3M
$-3.2M
Q2 24
$-1.8M
$-4.1M
Q1 24
$-4.1M
$-9.8M
Gross Margin
CTM
CTM
SSII
SSII
Q4 25
33.9%
43.9%
Q3 25
37.6%
48.1%
Q2 25
36.1%
59.1%
Q1 25
39.0%
21.2%
Q4 24
40.0%
48.9%
Q3 24
42.7%
52.8%
Q2 24
40.6%
31.9%
Q1 24
39.8%
20.0%
Operating Margin
CTM
CTM
SSII
SSII
Q4 25
-11.1%
-3.7%
Q3 25
3.0%
-14.3%
Q2 25
-2.7%
1.0%
Q1 25
-12.7%
-115.6%
Q4 24
-15.7%
-22.7%
Q3 24
-11.9%
-73.1%
Q2 24
-13.6%
-90.9%
Q1 24
-23.6%
-270.3%
Net Margin
CTM
CTM
SSII
SSII
Q4 25
-10.5%
-17.0%
Q3 25
2.8%
-29.0%
Q2 25
-2.3%
-2.6%
Q1 25
-10.0%
-111.0%
Q4 24
-26.6%
-23.7%
Q3 24
-11.0%
-74.0%
Q2 24
-16.0%
-91.8%
Q1 24
-36.3%
-270.5%
EPS (diluted)
CTM
CTM
SSII
SSII
Q4 25
$-0.02
$-0.01
Q3 25
$0.00
$-0.02
Q2 25
$0.00
$0.00
Q1 25
$-0.01
$-0.03
Q4 24
$-0.05
$-0.01
Q3 24
$-0.02
$-0.02
Q2 24
$-0.03
$-0.02
Q1 24
$-0.08
$-0.06

Balance Sheet & Financial Strength

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

Metric
CTM
CTM
SSII
SSII
Cash + ST InvestmentsLiquidity on hand
$3.2M
Total DebtLower is stronger
Stockholders' EquityBook value
$35.8M
$38.2M
Total Assets
$41.9M
$74.2M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CTM
CTM
SSII
SSII
Q4 25
$3.2M
Q3 25
$5.7M
Q2 25
$11.4M
Q1 25
$15.9M
Q4 24
$466.5K
Q3 24
$220.4K
Q2 24
$608.2K
Q1 24
$948.1K
Total Debt
CTM
CTM
SSII
SSII
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
$8.0M
Q3 24
$8.3M
Q2 24
$8.7M
Q1 24
$9.0M
Stockholders' Equity
CTM
CTM
SSII
SSII
Q4 25
$35.8M
$38.2M
Q3 25
$36.7M
$39.6M
Q2 25
$31.8M
$42.0M
Q1 25
$26.1M
$40.6M
Q4 24
$20.2M
$13.5M
Q3 24
$12.0M
$13.7M
Q2 24
$12.1M
$14.8M
Q1 24
$12.8M
$16.7M
Total Assets
CTM
CTM
SSII
SSII
Q4 25
$41.9M
$74.2M
Q3 25
$46.3M
$69.6M
Q2 25
$43.4M
$70.0M
Q1 25
$41.1M
$63.5M
Q4 24
$37.8M
$42.4M
Q3 24
$28.8M
$39.0M
Q2 24
$29.5M
$35.7M
Q1 24
$30.5M
$35.2M
Debt / Equity
CTM
CTM
SSII
SSII
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
0.40×
Q3 24
0.69×
Q2 24
0.72×
Q1 24
0.70×

Cash Flow & Capital Efficiency

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

Metric
CTM
CTM
SSII
SSII
Operating Cash FlowLast quarter
$-661.7K
$-1.5M
Free Cash FlowOCF − Capex
$-3.2M
FCF MarginFCF / Revenue
-22.3%
Capex IntensityCapex / Revenue
11.8%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-22.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CTM
CTM
SSII
SSII
Q4 25
$-661.7K
$-1.5M
Q3 25
$1.0M
$-7.5M
Q2 25
$214.2K
$-3.5M
Q1 25
$-2.5M
$-6.1M
Q4 24
$-394.4K
$-3.3M
Q3 24
$742.2K
$-2.5M
Q2 24
$748.6K
$-1.0M
Q1 24
$23.7K
$-2.7M
Free Cash Flow
CTM
CTM
SSII
SSII
Q4 25
$-3.2M
Q3 25
$957.0K
$-8.2M
Q2 25
$-3.8M
Q1 25
$-7.0M
Q4 24
$-3.4M
Q3 24
$738.9K
$-4.2M
Q2 24
$-3.1M
Q1 24
$-2.8M
FCF Margin
CTM
CTM
SSII
SSII
Q4 25
-22.3%
Q3 25
6.5%
-64.1%
Q2 25
-37.7%
Q1 25
-136.2%
Q4 24
-41.7%
Q3 24
6.4%
-96.9%
Q2 24
-69.5%
Q1 24
-76.9%
Capex Intensity
CTM
CTM
SSII
SSII
Q4 25
11.8%
Q3 25
0.3%
5.9%
Q2 25
3.2%
Q1 25
17.0%
Q4 24
0.0%
1.5%
Q3 24
0.0%
38.8%
Q2 24
0.0%
46.8%
Q1 24
0.0%
3.5%
Cash Conversion
CTM
CTM
SSII
SSII
Q4 25
Q3 25
2.41×
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

CTM
CTM

Segment breakdown not available.

SSII
SSII

System Sales$13.4M92%
Other$1.2M8%

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