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Side-by-side financial comparison of STEM, INC. (STEM) and TSS, Inc. (TSSI). Click either name above to swap in a different company.
TSS, Inc. is the larger business by last-quarter revenue ($60.9M vs $47.1M, roughly 1.3× STEM, INC.). TSS, Inc. runs the higher net margin — 20.0% vs -33.9%, a 53.9% gap on every dollar of revenue. On growth, TSS, Inc. posted the faster year-over-year revenue change (21.8% vs -15.6%). Over the past eight quarters, TSS, Inc.'s revenue compounded faster (95.8% CAGR vs 36.1%).
StemCells, Inc. is a public biopharmaceutical company headquartered in Newark, California, that is developing purified human neural stem cells (HuCNS-SCs) in the hopes of treating central nervous system disorders and paralysis. StemCells' HuCNS-SCs have the ability to differentiate into the three main types of cells found in the central nervous system: neurons, astrocytes and oligodendrocytes.
STEM vs TSSI — Head-to-Head
Income Statement — Q4 FY2025 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $47.1M | $60.9M |
| Net Profit | $-16.0M | $12.2M |
| Gross Margin | 48.9% | 17.6% |
| Operating Margin | -17.7% | 1.5% |
| Net Margin | -33.9% | 20.0% |
| Revenue YoY | -15.6% | 21.8% |
| Net Profit YoY | 68.8% | 535.7% |
| EPS (diluted) | $-4.40 | $0.44 |
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.
| Q4 25 | $47.1M | $60.9M | ||
| Q3 25 | $38.2M | $41.9M | ||
| Q2 25 | $38.4M | $44.0M | ||
| Q1 25 | $32.5M | $99.0M | ||
| Q4 24 | $55.8M | $50.0M | ||
| Q3 24 | $29.3M | $70.1M | ||
| Q2 24 | $34.0M | $12.2M | ||
| Q1 24 | $25.5M | $15.9M |
| Q4 25 | $-16.0M | $12.2M | ||
| Q3 25 | $-23.8M | $-1.5M | ||
| Q2 25 | $202.5M | $1.5M | ||
| Q1 25 | $-25.0M | $3.0M | ||
| Q4 24 | $-51.1M | $1.9M | ||
| Q3 24 | $-148.3M | $2.6M | ||
| Q2 24 | $-582.3M | $1.4M | ||
| Q1 24 | $-72.3M | $15.0K |
| Q4 25 | 48.9% | 17.6% | ||
| Q3 25 | 35.5% | 11.1% | ||
| Q2 25 | 33.4% | 17.8% | ||
| Q1 25 | 32.4% | 9.3% | ||
| Q4 24 | -4.4% | 14.4% | ||
| Q3 24 | 21.2% | 11.3% | ||
| Q2 24 | 27.6% | 37.3% | ||
| Q1 24 | -95.0% | 17.1% |
| Q4 25 | -17.7% | 1.5% | ||
| Q3 25 | -33.6% | -2.2% | ||
| Q2 25 | -34.8% | 5.1% | ||
| Q1 25 | -65.0% | 4.2% | ||
| Q4 24 | -84.4% | 0.0% | ||
| Q3 24 | -493.2% | 5.4% | ||
| Q2 24 | -1705.5% | 14.0% | ||
| Q1 24 | -267.0% | 1.6% |
| Q4 25 | -33.9% | 20.0% | ||
| Q3 25 | -62.2% | -3.6% | ||
| Q2 25 | 527.8% | 3.4% | ||
| Q1 25 | -76.9% | 3.0% | ||
| Q4 24 | -91.6% | 3.8% | ||
| Q3 24 | -506.3% | 3.8% | ||
| Q2 24 | -1712.6% | 11.5% | ||
| Q1 24 | -283.9% | 0.1% |
| Q4 25 | $-4.40 | $0.44 | ||
| Q3 25 | $-2.84 | $-0.06 | ||
| Q2 25 | $-1.79 | $0.06 | ||
| Q1 25 | $-0.15 | $0.12 | ||
| Q4 24 | $-15.29 | $0.08 | ||
| Q3 24 | $-18.24 | $0.10 | ||
| Q2 24 | $-71.81 | $0.06 | ||
| Q1 24 | $-0.46 | $0.00 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $48.9M | $85.5M |
| Total DebtLower is stronger | — | — |
| Stockholders' EquityBook value | $-249.4M | $76.6M |
| Total Assets | $308.9M | $184.9M |
| Debt / EquityLower = less leverage | — | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $48.9M | $85.5M | ||
| Q3 25 | $43.1M | $70.7M | ||
| Q2 25 | $40.8M | — | ||
| Q1 25 | $58.6M | — | ||
| Q4 24 | $56.3M | $23.2M | ||
| Q3 24 | $75.4M | $46.4M | ||
| Q2 24 | $89.6M | $8.3M | ||
| Q1 24 | $112.8M | $14.4M |
| Q4 25 | $-249.4M | $76.6M | ||
| Q3 25 | $-235.7M | $63.4M | ||
| Q2 25 | $-214.1M | $9.5M | ||
| Q1 25 | $-417.5M | $9.4M | ||
| Q4 24 | $-398.4M | $7.1M | ||
| Q3 24 | $-344.1M | $7.7M | ||
| Q2 24 | $-203.2M | $5.2M | ||
| Q1 24 | $371.6M | $3.7M |
| Q4 25 | $308.9M | $184.9M | ||
| Q3 25 | $362.6M | $165.4M | ||
| Q2 25 | $379.2M | $139.5M | ||
| Q1 25 | $405.1M | $113.5M | ||
| Q4 24 | $437.4M | $96.6M | ||
| Q3 24 | $537.8M | $67.3M | ||
| Q2 24 | $691.5M | $28.9M | ||
| Q1 24 | $1.3B | $26.8M |
Cash Flow & Capital Efficiency
How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.
| Metric | | |
|---|---|---|
| Operating Cash FlowLast quarter | $8.2M | $16.3M |
| Free Cash FlowOCF − Capex | — | $15.8M |
| FCF MarginFCF / Revenue | — | 25.9% |
| Capex IntensityCapex / Revenue | — | 0.9% |
| Cash ConversionOCF / Net Profit | — | 1.34× |
| TTM Free Cash FlowTrailing 4 quarters | — | $2.1M |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $8.2M | $16.3M | ||
| Q3 25 | $11.4M | $-18.4M | ||
| Q2 25 | $-21.3M | $16.3M | ||
| Q1 25 | $8.5M | $20.6M | ||
| Q4 24 | $-14.7M | $-21.6M | ||
| Q3 24 | $-9.4M | $38.6M | ||
| Q2 24 | $-11.9M | $-4.3M | ||
| Q1 24 | $-621.0K | $2.6M |
| Q4 25 | — | $15.8M | ||
| Q3 25 | — | $-24.9M | ||
| Q2 25 | — | $5.4M | ||
| Q1 25 | — | $5.8M | ||
| Q4 24 | — | $-28.4M | ||
| Q3 24 | — | $38.6M | ||
| Q2 24 | — | $-6.0M | ||
| Q1 24 | — | $2.6M |
| Q4 25 | — | 25.9% | ||
| Q3 25 | — | -59.3% | ||
| Q2 25 | — | 12.3% | ||
| Q1 25 | — | 5.8% | ||
| Q4 24 | — | -56.7% | ||
| Q3 24 | — | 55.1% | ||
| Q2 24 | — | -49.4% | ||
| Q1 24 | — | 16.4% |
| Q4 25 | — | 0.9% | ||
| Q3 25 | — | 15.3% | ||
| Q2 25 | — | 24.8% | ||
| Q1 25 | — | 15.0% | ||
| Q4 24 | — | 13.4% | ||
| Q3 24 | — | 0.1% | ||
| Q2 24 | — | 13.8% | ||
| Q1 24 | — | 0.2% |
| Q4 25 | — | 1.34× | ||
| Q3 25 | — | — | ||
| Q2 25 | -0.11× | 11.02× | ||
| Q1 25 | — | 6.93× | ||
| Q4 24 | — | -11.32× | ||
| Q3 24 | — | 14.60× | ||
| Q2 24 | — | -3.09× | ||
| Q1 24 | — | 176.40× |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
STEM
Segment breakdown not available.
TSSI
| Procurement Revenues Segment | $43.2M | 71% |
| System Integration Services Segment | $14.2M | 23% |
| Facilities Segment | $3.5M | 6% |
