The 2026 SD Hardtech Next Wave: 30 San Diego Hardtech Companies to Watch
30 San Diego hardtech companies worth knowing before everyone else does.
Published by Neal Bloom | Rising Tide Partners
This list and the recognition event behind it wouldn’t exist without the partners who believe in San Diego’s hardtech future: SDSU Mission Valley, Procopio, REACH Defense, Alexandria Real Estate Equities, Savills, JP Morgan and Firestorm as Partners, and Deloitte, Sequoia, Wells Fargo, Camber Road, and IP 5000 Marketplace as Supporters. Building a real ecosystem takes a village — grateful to have this one.
Every great ecosystem has a pipeline.
The SD Hardtech 50 captures the companies that have already raised significant capital and proven product-market fit — or at least product-market momentum. But the more interesting question — and the one that determines what San Diego looks like in five years — is what’s coming up behind them.
The Next Wave is our answer to that question.
These 30 companies haven’t all raised big rounds. Some are pre-seed. Some are SBIR-backed. Some are post-revenue with paying customers and almost no outside capital. What they share is a hardware or hardware/software core, a genuine San Diego presence, and at least one reason to believe they’re building something real.
A few things stand out about this cohort in aggregate. These 30 companies hold 70 patent families and 122 patent filings — meaningful IP for a group at this stage. And while only 39% have registered corporate trademarks (compared to 75% in the Hardtech 50), that gap is itself a signal: many of these founders are heads-down building, not brand-building yet. That changes fast.
The sub-themes in this cohort tell you where San Diego’s hardtech ecosystem is heading: counter-drone defense is heating up fast, AgTech is emerging as a genuine cluster anchored by biology and materials science, and several med device and diagnostics companies look underfunded relative to what they’ve built.
What follows isn’t a ranked list. These are companies worth knowing.
IP analysis conducted by Metis Partners and IPRScore.
Defense & Autonomy
San Diego’s defense pipeline runs deep, and the Next Wave reflects it. Six companies spanning counter-drone systems, autonomous underwater vehicles, VTOL aircraft, aerial delivery, robotics, and distributed electric propulsion. Counter-drone is the fastest-moving sub-theme: DroneKyll and Freedom Flight Works are both building in a space the DoD is spending heavily to develop. The common thread across this cluster is autonomy in challenging environments — underwater, airborne, GPS-denied, and contested.
Unmanned Aerospace — GH-4 next-gen VTOL rotorcraft combining helicopter lift with autogyro efficiency. Multi-patent. U.S. Navy and OECIF partnership. An aircraft design that takes vertical takeoff and landing capability from a helicopter and forward-flight efficiency from an autogyro — and a defense customer already at the table.
Freedom Flight Works — 18 SBIR contracts across AFWERX, Army, USSOCOM, and DARPA. 6 Phase IIs, 3 Phase III transitions. Powered parafoil aerial delivery for last-mile logistics in contested environments. The SBIR track record here is exceptional — this is a team that knows how to work the defense procurement system and is consistently advancing to the next phase.
DroneKyll — Incorporated January 2025. Stanford founder. Counter-drone defense. Very early — but the counter-drone space is one of the hottest in defense right now, the founder has pedigree, and San Diego is exactly where this company should be building. We’re watching.
Aquaai — Biomimetic underwater robots for ocean data collection, aquaculture monitoring, defense, and research applications. Ranked #4 in forward citations in the Next Wave IP analysis. Robots that move through the ocean the way fish do — quieter, more efficient, and far less disruptive than propeller-driven vehicles.
Wayfarer Aircraft — NSF/NASA-backed distributed electric propulsion for advanced air mobility. Based in La Mesa. Phase II STTR with Embry-Riddle. Distributed electric propulsion — spreading thrust across many small motors rather than a few large ones — is one of the most promising architectures for next-generation aircraft. Wayfarer is building the R&D foundation for that future.
Tactus AI — Humanoid robots for regulated lab environments. Serial founder team — previously exited Reveal Biosciences in 2021. First robotics company in the Digital Pathology Association. Labs are one of the best early markets for humanoid robotics: controlled environment, repetitive tasks, high cost of human error, and significant regulatory pressure to document everything.
Diagnostics & Med Device
Five companies. All hardware. All solving persistent clinical problems — contamination, dehydration, medication adherence, diagnostics at the point of care — with devices that are either already shipping or approaching clearance. The IP data backs up the technical depth: this subcohort holds some of the strongest patent and citation profiles in the Next Wave cohort.
HAI Solutions — $500K raised. Devices preventing IV contamination — one of the most persistent and costly drivers of hospital-acquired infections. AANA pitch competition winner. Ranked #6 in patent families in the Next Wave IP analysis. Early, but solving a real clinical problem with a simple, deployable solution.
Hydrostasis — $4.2M Series A in May 2025. SOSV Deep Tech 100. GECA wrist-worn hydration monitor now shipping. Ranked #5 in both patent families and active trademarks in the Next Wave cohort. A real device, in real customers’ hands, solving a problem — dehydration — that affects athletic performance and clinical outcomes alike.
CARI Health — $2.3M raised. NIH SBIR-backed wearable for real-time medication adherence monitoring. The compliance problem in pharmaceuticals is enormous — most medications don’t work because people don’t take them correctly. CARI is building the hardware layer to close that gap.
In Diagnostics — TC Battlefield alum. At-home point-of-care diagnostics for veterinary and human health. Active San Diego presence. Ranked #3 in both patent families and forward citations in the Next Wave cohort. Further along than their profile suggests — building real diagnostic hardware for both human and animal health from the same platform.
Field Medical — Ranked #4 in patent families and #9 in forward citations in the Next Wave IP analysis. Field Medical’s IP footprint is notable for a company at this stage — strong foundational patents and meaningful citation activity signal real technical depth. More to come.
Advanced Manufacturing
Four companies rethinking what manufacturing means at a fundamental level — not optimizing existing processes, but replacing them. Algae-derived plastics, cellulose-based building materials, additive manufacturing for underserved communities, and a military-grade portable 3D printer that has already printed parts mid-flight. San Diego’s materials science and defense infrastructure makes it an unusually strong environment for this cluster.
Algenesis — $3M raised. Algae-derived compostable plastics. Soleic® biodegradable TPU already in market. Attacking microplastics at the source rather than cleaning them up downstream. Ranked #2 in active trademarks in the Next Wave cohort — a company that has thought about brand alongside product.
ECOR — Recycled cellulose building materials. No toxins, 95% recycled water. A circular economy alternative to wood and plastic that builds with waste streams instead of raw materials. Ranked #8 in patent families in the Next Wave cohort. One of the most materials-science-grounded companies on this list.
Limber — 3D-printed prosthetics for underserved communities globally. Free prostheses in Ensenada. Mission-driven at the core, but the technology is real — additive manufacturing applied to a domain where cost has historically been the barrier to access.
Craitor — UCSD-founded. FieldFab is a military-grade portable 3D printer built to MIL-STD-810H standards — prints functional parts in extreme temperatures, on moving vehicles, in-flight. The National Guard demonstrated the world’s first in-flight 3D printing with FieldFab in October 2025. 25+ field deployments across Alaska, Okinawa, and Hawaii. $3.3M in DoD contracts. Techstars-backed. In 2026, rolling out a full ecosystem connecting design authority, digital inventory, and end-user manufacturing. Building the distributed manufacturing layer for the military.
Semiconductors & Computing
Two companies. Both building foundational infrastructure for compute-intensive environments — one thermal, one biological. Both are ahead of where their public profiles suggest, which is why the IP data matters here.
Chilldyne — $2.7M raised. Negative-pressure liquid cooling for HPC data centers — leak-proof and high-reliability. Ranked #1 in forward citations in the Next Wave IP analysis, meaning Chilldyne’s patents are being cited by others building in the same space. In a world where AI compute is limited by thermal management, this matters more than most people realize.
Qureator — Curiochips microphysiological systems replicating human tissue for drug discovery. Active fundraising in 2025–2026. Organ-on-a-chip technology that gives pharmaceutical researchers a more human-relevant preclinical model than animal testing. Ranked #10 in patent families in the Next Wave cohort.
Energy & CleanTech
Four companies across solar, second-life batteries, algae-powered carbon capture, and ocean thermal energy harvesting. The range of approaches here reflects something true about the energy transition: there’s no single answer, and the companies most likely to matter are the ones finding entirely new input sources. Seatrec — which harvests energy from the temperature difference between ocean layers to power underwater vehicles indefinitely — is one of the most elegant energy concepts in either cohort.
Seatrec — Ocean thermal energy harvesting powering autonomous underwater robots. DoD, NOAA, and NSF contracts. 10x production increase in 2025. NASA JPL origin. Converts the temperature gradient between ocean layers into usable power — charging underwater vehicles indefinitely without retrieval.
Smartville — Second-life EV battery storage systems. Smartville 360 deployed at UC San Diego. $25.9M total in equity and grants. Taking end-of-life EV batteries — which still have significant capacity — and giving them a second career as stationary energy storage. A circular economy play with a real deployment at a real institution.
Eversun — Ultra-portable solar-powered eTower for off-grid, defense, and industrial operations. IoT-enabled. Deployable energy infrastructure for forward operating bases, construction sites, disaster response, and remote industrial applications that can’t wait for grid access.
Airbuild — Algae-powered biopanels capturing CO₂ and generating power. Pre-seed. Each panel sequesters more CO₂ than 15 trees. Still at the earliest stage, but the concept — algae biology meets modular energy infrastructure — is genuinely novel and the sequestration math is compelling.
Logistics, Sensor & Infrastructure
Four companies building the sensing and monitoring layer across physical spaces, water systems, infrastructure corridors, and ocean environments. HyperKelp is the standout — $3.2M in revenue at this stage, with paying contracts from NATO, DoD, NOAA, and the Port of San Diego. That’s a company that figured out how to get paid while still building.
HyperKelp — $3.2M in revenue in 2025, up 60% year over year. NATO DIANA 2026 cohort. DoD, NOAA, and Port of San Diego contracts. Forbes 30 Under 30 co-founder. Underwater sensors and AI monitoring ocean health and supporting aquaculture — already generating real revenue while most competitors are still writing grants.
Occuspace — $3.6M raised. Ambient Wi-Fi occupancy sensors for space utilization in universities and corporate offices. No cameras, no badges — just signal. Giving facilities teams the data they need to right-size space in a post-pandemic world where nobody is certain how their buildings are being used.
Looq AI — $2.6M raised. AI digital twin platform for survey-grade 3D mapping of infrastructure. Point your device, get a photogrammetry-accurate 3D model of a bridge, building, or utility corridor. The kind of tool that turns a multi-day survey into a 30-minute walkthrough.
Namara — AI-enabled smart water control valve. $2.5M IPS Corp distribution deal — exclusive U.S. and Canada plumbing wholesalers. A distribution deal of that scale is unusual at this stage. Namara has figured out how to get their product into the field through existing channels, which is often the hardest part of hardware commercialization.
AgTech & Bio
Three companies — and a net new cluster that doesn’t appear in the Hardtech 50. San Diego’s agricultural heritage in North County and Inland Valley, combined with the region’s biotech and materials science infrastructure, creates an unusually capable environment for companies working at the biology-agriculture intersection. Cibus holds the deepest IP position in the entire Next Wave cohort. The cluster is real, and it’s underappreciated.
Cibus (Nasdaq: CBUS) — Gene-edited plant traits licensed to seed companies. 2027 rice commercial launch target. UK Government Farming Innovation partner. San Diego’s most established public AgTech company. Ranked #1 in both patent families and active trademarks in the Next Wave IP analysis — the most IP-rich company in this cohort by a significant margin.
Upcycle and Company — Regenerative plant inputs reducing fertilizer use by up to 45%. Paying customers include CBRE, Gachina, and Dinsmore Landscape. Revenue-generating agriculture inputs with real commercial customers — in a sector that often takes years to convert. Reducing fertilizer dependency while maintaining yields is one of the most important problems in sustainable agriculture.
Aquaspy — Agricultural sensor technology for precision irrigation and soil monitoring. Data-driven agriculture that reduces water consumption while improving yield outcomes — two things that matter enormously in California’s agricultural economy.
Industrial & Emerging
Two companies. One building the distribution and procurement infrastructure for critical industries. One in stealth with hardware at its core. Both worth watching.
Empirium — Critical industries B2B marketplace. Early-stage, but addressing the distribution and procurement complexity in critical industries — a problem that matters enormously and that nobody has fully solved.
Chrome Roads — An early-stage San Diego hardtech company with hardware at its core. More detail forthcoming as they emerge from stealth.
What the Next Wave Tells Us
The defense cluster in this cohort — six companies spanning drones, counter-drone systems, autonomous underwater vehicles, VTOL aircraft, and airborne logistics — reflects San Diego’s proximity to Navy and Marine Corps operations, DARPA, and the Pacific. That pipeline doesn’t slow down.
The AgTech cluster is the genuine surprise. Three companies building at the biology-agriculture intersection, anchored by one of the most IP-rich companies in either cohort. San Diego doesn’t get enough credit for this, but North County’s agricultural roots combined with the region’s life sciences infrastructure creates something real here.
And the early-stage med device and diagnostics companies are worth a closer look. Several are further along than their public profiles suggest — building real hardware with modest capital before raising a larger round. That’s a pattern worth recognizing early.
By the Numbers
Companies in Next Wave: 30 Patent families: 70 Patent filings: 122 Companies with registered trademarks: 39% Top IP company by patent families: Cibus Top IP company by forward citations: Chilldyne Top IP company by active trademarks: Cibus
IP analysis conducted by Metis Partners and IPRScore.
See also: The 2026 SD Hardtech 50
Neal Bloom is the founder of Rising Tide Partners and RTP Communities.