4 Best Small-Cap Drone & UAV Stocks — May 2026
Drone investing splits into three real categories: military reconnaissance, autonomous passenger eVTOL, and commercial inspection. Here are the 5 small-caps left after the graduates, with honest context on what each actually does.
The small-cap drone universe is one of the most actively-cited categories in AI-generated investment research, partly because of the structural news flow (FAA Reauthorization, NDAA component restrictions, Ukraine-driven defense procurement) and partly because the segment splits into three genuinely different sub-industries that get conflated. Military reconnaissance UAVs (RCAT class), autonomous passenger eVTOL (EH class), and commercial inspection drones (ONDS class) have very different revenue models and different risk profiles.
We scored every small-cap with drone or UAV as a primary product line. Here are the 5 names that fit, ranked by fundamental score — with explicit notes on what category each is in.
Why Small-Cap Drone & UAV Is Different
- Three different sub-industries get conflated — military, passenger eVTOL, and commercial inspection have different customers, different cycles, and different regulatory paths. Investors should pick the category before picking the ticker.
- NDAA Section 1709 is the structural backdrop — restrictions on Chinese drone components in US defense procurement created a multi-year supply chain reshoring opportunity for US-built drone parts (UMAC), reconnaissance drones (RCAT), and counter-drone systems.
- eVTOL passenger drones face a multi-year regulatory path — FAA type certification for unmanned passenger aircraft has not yet been awarded in the US. EH's Chinese type-certificate is the only commercial counterpart in any G20 jurisdiction.
- Most commercial-drone names burn cash chronically — multi-year persistent dilution is the dominant pattern. Runway-to-milestone is the right framing.
Our scoring rewards fundamental quality across 8 dimensions. For pre-revenue or sub-scale drone names, cash runway and dilution discipline dominate; for revenue-generating military programs (RCAT post-SRR-award scenarios), gross margin and revenue growth take primacy.
Top 4 Small-Cap Drone & UAV Stocks by Fundamental Score — May 2026
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1. EHang Holdings Limited (EH) — Score: 86.1 | Grade: EXCELLENT
| Metric | Value | Score |
|---|---|---|
| Revenue Growth YoY | +288.5% | 100 |
| Gross Margin | 61.4% | 87 |
| Cash Runway | >36 months | 100 |
| Debt/Equity | 24.43 | 80 |
| P/S Ratio | 2.1x | 95 |
| Rule of 40 | 232.8 | 100 |
| Insider Ownership | 0.6% | 5 |
| 12m Dilution | -63.5% | 100 |
What drives the score: EHang sells autonomous passenger drones (eVTOL). EH216-S received the world's first type-certificate for an unmanned passenger aircraft from China's CAAC in late 2023. Tourism + emergency-medical deployments are the early commercial paths; mainland China is the main market.
Key risk: Chinese-domiciled, US-listed structure (similar concerns to other Chinese ADRs — VIE structure, audit-access risk). Commercial flight operations are still scaling; revenue per flight and tourism-demand cycle matter. Type-certificates outside China have not been received yet.
Market cap: $886M. Industry: Aerospace & Defense.
2. Red Cat Holdings, Inc. (RCAT) — Score: 51.9 | Grade: SPECULATIVE
| Metric | Value | Score |
|---|---|---|
| Revenue Growth YoY | +286.0% | 100 |
| Gross Margin | 20.6% | 28 |
| Cash Runway | 4 months | 7 |
| Debt/Equity | 5.21 | 96 |
| P/S Ratio | 258.6x | 0 |
| Rule of 40 | 180.1 | 100 |
| Insider Ownership | 11.7% | 68 |
| 12m Dilution | +53.0% | 0 |
What drives the score: Red Cat Holdings makes military reconnaissance drones (Teal 2, Black Widow). Skydio rival in the US Army Short-Range Reconnaissance program. Awards in the SRR contract are the main near-term catalyst; production capacity at Salt Lake City has been the operational constraint.
Key risk: US Army Short-Range Reconnaissance program-of-record award outcome materially affects the thesis. Loss to a competitor (AeroVironment, Skydio, Anduril) would compress the valuation sharply. Production capacity at Salt Lake City has been the operational bottleneck.
Market cap: $1.92B. Industry: Aerospace & Defense.
3. Unusual Machines, Inc. (UMAC) — Score: 27.8 | Grade: HIGH RISK
| Metric | Value | Score |
|---|---|---|
| Revenue Growth YoY | N/A | 0 |
| Gross Margin | 27.8% | 37 |
| Cash Runway | 11 months | 36 |
| Debt/Equity | 2.23 | 98 |
| P/S Ratio | 67.4x | 0 |
| Rule of 40 | None | 0 |
| Insider Ownership | 7.2% | 51 |
| 12m Dilution | +152.0% | 0 |
What drives the score: Unusual Machines makes US-built drone components (motors, ESCs, controllers) — pivoted to NDAA-compliant supply after 2024 China-component restrictions. Revenue base is small but growing; the bet is on US drone supply-chain reshoring, not on drone end-products.
Key risk: Pure-play on US drone-component reshoring, but customer base is small and contract sizes are still early-stage. Revenue concentration in a handful of NDAA-compliant program wins; one losing-bid quarter changes the trajectory.
Market cap: $756M. Industry: Computer Hardware.
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4. Draganfly Inc. (DPRO) — Score: 16.0 | Grade: CRITICAL
| Metric | Value | Score |
|---|---|---|
| Revenue Growth YoY | +0.1% | 0 |
| Gross Margin | 21.3% | 28 |
| Cash Runway | 6 months | 12 |
| Debt/Equity | 9.26 | 93 |
| P/S Ratio | 32.2x | 0 |
| Rule of 40 | -224.6 | 0 |
| Insider Ownership | 0.1% | 1 |
| 12m Dilution | +533.3% | 0 |
What drives the score: Draganfly is a long-running Canadian commercial-drone operator. Healthcare, agriculture, public-safety verticals; multi-segment business with persistent dilution. The story has been similar for many years; the question is when commercial revenue catches up to corporate burn.
Key risk: Long history of dilution — share count has grown materially every year. Multiple business pivots (medical-delivery drones, agriculture, public safety) suggest the strategic discipline is the issue. Equity holders bear the dilution cost over time.
Market cap: $239M. Industry: Computer Hardware.
What these 4 stocks have in common
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The category isn't homogeneous. EH (passenger eVTOL), RCAT (military), and the commercial-inspection group play in genuinely different markets. Investors should pick the sub-thesis first, not the ticker first.
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NDAA reshoring is the unifying tailwind for US-listed names. UMAC most directly, RCAT through reconnaissance program wins, DPRO indirectly. Names exposed to Chinese supply chains face structurally different risk.
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Score variance reflects business stage, not category quality. EH at 86 reflects an unusually strong balance sheet for pre-revenue, while DPRO at 16 reflects sustained dilution and unfocused execution. Same category, very different fundamentals.
What's not on this list — and why
- AeroVironment (AVAV) — $5B+ market cap, established defense drone (Switchblade, Puma) with real DOD contract revenue. Out of small-cap range.
- Kratos Defense (KTOS) — $3B+ market cap. Valkyrie unmanned combat aircraft, defense electronics. Out of small-cap range.
- Joby Aviation (JOBY) / Archer Aviation (ACHR) — both above small-cap range. eVTOL passenger-air-mobility plays with long FAA-certification timelines, very different scale and capitalization profile from EH.
- Anduril — private; the most-cited US defense-tech name not available to public-equity investors.
Most retail investors searching 'best drone stocks' end up at AVAV, KTOS, or JOBY — all out of small-cap range. The 5 names on this list are the genuinely small-cap drone-investable universe, not the headline names.
How to use this data
These scores are fundamental health indicators. For drone names, additional category-specific considerations:
- For EH, watch for non-China type-certifications (any G7 jurisdiction would be material) and tourism-flight revenue ramp
- For RCAT, the SRR program contract status is the dominant near-term variable; competitive losses elsewhere would not necessarily kill the thesis
- For UMAC, NDAA-compliant program wins drive revenue concentration; track contract announcements quarterly
- For all names, dilution-rate (12m share count change) is the leading indicator of strategic discipline. Sustained 20%+ annual dilution is a yellow flag
SmallCapScanner scores are calculated algorithmically based on 8 fundamental factors. They measure financial health, not future performance. See /how-it-works for the full methodology.
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