Startup investors in 2025 are gravitating toward sectors that demand serious expertise from day one, a review of Crunchbase seed-funding data shows. Our insights reveal seed investment this year flowing to companies working on daunting challenges, from defense and space tech to recycling systems and longevity research. Here's a closer look at the sectors and startups seeing attention from seed-stage investors — as well as the up-and-coming companies in those areas predicted to raise funding next.
What Seed Trends Say About The Future: Live Long, Recycle And Launch More Satellites
Four Areas Where Seed Investment is Trending in 2025
Joanna Glasner
Longevity
Virtually all of us would like to live long, healthy lives. But aside from basics like exercise and healthy meals, there are relatively few obvious measures to further this goal.
Not so for startups. From ultrasound treatments for Alzheimer's to gene therapy to restore aged cells to regenerative medicine, seed-funded companies are working on a wide array of treatments aimed at extending lifespans and quality of life.
And, even when we do inevitably die, there's another startup offering whole-body or brain-only cryopreservation.
To demonstrate where seed investment is going, below we put together a list of seven companies funded this year with longevity-related business models.
Seed-Funded Longevity Startups
| Organization Name | Description | Headquarters Location | Total Equity Funding Amount (in USD) |
|---|---|---|---|
| Grey Matter Neurosciences | Grey Matter Neurosciences develops new medical devices and drug-device combinations to treat age-related brain illnesses. | Toronto | $14,000,000 |
| Eternal | Eternal is here to redefine what healthcare looks and feels like for those who can't imagine a life without being active. | San Francisco | $13,000,000 |
| Junevity | Junevity develops medicines targeting transcription factors to reverse diseases of aging. | San Francisco | $10,000,000 |
| Tomorrow Bio | Tomorrow Bio is a biotech firm that specializes in human cryopreservation. It uses cutting-edge technology to keep you alive in the future. | Berlin | $5,663,739 |
| Longevity Medical Institute | Longevity Medical Institute provides regenerative medicine, advanced diagnostics, and anti-aging therapies. | San José Del Cabo, Baja California Sur, Mexico | $4,700,000 |
| Vesalius Longevity Labs | Vesalius Longevity Labs is a healthcare company that develops premium peptide products. | Scottsdale, AZ | $2,845,000 |
| MgShell | MgShell manufactures intraocular devices for treating exudative form of age-related macular degeneration. | Milan | $1,840,473 |
Defense
Venture funding for defense tech has been on the rise, and this trend has extended to seed-stage dealmaking.
The lineup of deals this year includes two very large investments. El Segundo, California-based Amca, which develops aerospace and defense products, launched with a $76.5 million initial funding round backed by Andreessen Horowitz, Founders Fund, Caffeinated Capital and Lux Capital.
Another newcomer, Dallas-based Union Technologies, announced a $50 million seed round in April, to focus on rapid, high-tech manufacturing for national security, including production of munitions.
For a broader picture, we used Crunchbase data to put together a list of 11 representative defense-related startups that raised seed rounds this year.
Seed-Funded Defense Startups
| Organization Name | Description | Headquarters Location | Total Equity Funding Amount (in USD) |
|---|---|---|---|
| Amca | Amca acquires and develops critical aerospace and defense products in order to scale them to deliver what the industry needs next. | El Segundo, CA | $76,500,000 |
| Union | The modern energetics prime. | Dallas | $50,000,000 |
| Aeon | Aeon develops advanced capabilities at scale for maximum deterrence. | Austin, TX | $16,600,000 |
| Scout AI | Scout AI, building the robotic foundation model for defense. | Sunnyvale, CA | $15,000,000 |
| Gallatin | Gallatin is a logistics platform that offers AI-powered decision support for the defense industry. | El Segundo, CA | $15,000,000 |
| Thor Dynamics | Thor Dynamics specializes in directed energy systems for drone and swarm defense to protect critical infrastructure and national security. | Orlando | $8,310,000 |
| Rune Technologies | Rune Technologies blends private technology know-how with extensive military experience. | Arlington, VA | $6,200,000 |
| Trypillian | Trypillian is a defense technology startup that develops combat technologies proven in real-world warfare, including deep-strike systems. | London | $5,000,000 |
| Pilgrim | Building the warfighter of tomorrow. | Redwood City, CA | $3,250,000 |
| M-Fly | M-Fly develops gimbals for unmanned systems, supporting aerospace and defense with effective aerial surveillance solutions. | Estonia | $1,300,000 |
| DefendEye | The world's first fully autonomous drone, powered by AI, requires no pilot or setup. Detects humans faster than any human. | Poland | $1,281,983 |
Recycling
While this isn't shaping up as a robust year for cleantech and sustainability-related startup funding, there is still a good bit of seed dealmaking around recycling and waste reduction.
Much of it is happening outside the U.S., including startups working on new approaches to plastics recycling, wastewater treatment and reducing food waste.
To illustrate, we put together a list of the 13 sustainability-focused startups that raised seed funding this year. Just four are U.S.-based, with the remainder in Europe, the U.K. and Canada.
Among U.S. seed-funded companies, meanwhile, standouts include Jacksonville, Florida-based OnePlanet Solar Recycling and MacroCycle, a Cambridge, Massachusetts-based developer of plastic bottle and polyester textile waste upcycling technology.
Seed-Funded Recycling And Waste Reduction Startups
| Organization Name | Description | Headquarters Location | Last Funding Amount (in USD) |
|---|---|---|---|
| DePoly | DePoly is a PET-to-raw-material recycling company that converts dirty, post-consumer plastic items into valuable raw materials. | Sion, Valais, Switzerland | $23,000,000 |
| Oxyle | Oxyle is a developer of a novel technology to degrade hazardous micropollutants from wastewater, such as pesticides, chemicals etc. | Zürich | $16,000,000 |
| Freshflow | Freshflow is harnessing AI to build the food supply chain technology of the future and tackle global food waste. | Berlin | $7,313,676 |
| OnePlanet Solar Recycling | Recycler focused on solar-PV systems. | Jacksonville, FL | $7,000,000 |
| MacroCycle | Circular Plastics. Zero carbon emissions. | Cambridge, MA | $6,500,000 |
| Seloxium | Seloxium is innovative research that makes it possible to extract necessary metals in an environmentally friendly manner. | Oxfordshire, UK | $6,000,000 |
| Dops Recycling Technologies | Dops Recycling Technologies is developing a circular technology for converting complex waste flows into raw materials for new products. | The Netherlands | $5,392,493 |
| Arda Biomaterials | Arda Biomaterials transforms waste feedstock into smarter, circular biomaterials for fashion, home goods, automotive and more. | Southwark, UK | $5,250,000 |
| Clean Metals Recycling | Clean Metals Recycling is a metal recycling company that aims to transform industrial waste into valuable metal byproducts. | Toronto | $4,170,000 |
| ScrapBees | ScrapBees is a pick-up service for the recycling of scrap metal from commercial businesses and private households. | Nordrhein-Westfalen, Germany | $4,166,671 |
Spacetech
Spacetech is a major area for venture funding these days, with startups in the sector collectively pulling in over $35 billion since 2021. This year is off to a good start as well, with Crunchbase data showing spacetech funding poised for an annual gain.
The most high-profile action has been at later-stage and beyond, including last week's well-received IPO of Denver-based space and defense tech unicorn Voyager Technologies. But data shows there's plenty of activity at seed-stage as well.
To show where seed dealmaking is taking off, we put together a list of nine spacetech-related startups that raised financing this year.
Seed-Funded Spacetech Startups
| Organization Name | Description | Headquarters Location | Last Funding Amount (in USD) |
|---|---|---|---|
| Karman+ | Karman+ is a space research and technology company that researches space mining, asteroids, and rare earth materials. | Denver | $20,000,000 |
| OKAPI:Orbits | OKAPI:Orbits is a SaaS startup dedicated to making space travel more sustainable through Collision Avoidance Software for satellites. | Niedersachsen, Germany | $14,802,265 |
| Magdrive | Magdrive is working on advanced spacecraft propulsion for satellites in Low Earth Orbit. | Oxfordshire, UK | $10,517,726 |
| Starcloud | Starcloud is building a network of large data centers in space. | Redmond, WA | $10,000,000 |
| Aethero | Aethero is building the future of space computing and autonomy. | San Francisco | $8,400,000 |
| Spaceium | Spaceium develops a spacecraft docking system to support interplanetary missions. | Ottawa, Canada | $6,300,000 |
| Proteus Space | The Future Is Faster™ | Los Angeles | $6,100,000 |
| PiLogic | PiLogic AI platform offers rapid analysis of radar data for real-time applications. | Los Angeles | $4,099,995 |
| Esper Satellite Imagery | Builder and operator of remote sensing satellites capable of high-resolution hyperspectral imagery. | Melbourne, Australia | $3,100,450 |
Conclusion
While our picks of hot seed investment spaces may seem rather disparate, they do share one thing in common: All are areas where it generally takes enormous expertise just to launch a startup, let alone successfully scale one.
This may seem like par for the course in startup-land, but it's actually not true of every cycle. During the dot-com boom, the dawn of social networking, and the rise of the app economy, for instance, it wasn't uncommon for leading companies to begin as dorm-room startups.
By contrast, it seems unlikely any inexperienced founder could successfully develop life-extending therapies, launch a cryopreservation service, build spacecraft propulsion systems or build next-gen munitions. Hopefully, these are also not the kinds of business plans anyone would envision hatching out of a dorm room.