Nov 13, 2025 01:18:17 AM

Companies


Showing 101-125 of 322 companies
YC S15
Flirtey (SkyDrop) logo

Flirtey (SkyDrop)

Flirtey is the world’s first commercial drone delivery service and…

Flirtey is the leading drone delivery service. We are reinventing the on-demand economy with our network of flying robots for last mile delivery. Our mission is to save lives and change lifestyles by making delivery instant. Flirtey’s drone delivery service is faster, more efficient and the ultimate customer experience. We’re rapidly growing our team and achieving a record number of historic firsts in the drone delivery industry, advancing autonomy, safety systems and advanced delivery technology. If you are interested in having your goods delivered via Flirtey, or joining the team that is transforming the delivery industry, visit www.flirtey.com Recent Company Milestones: - October 2017 – Announced a partnership to launch the first automated external defibrillator (AED) drone delivery service in the U.S. - January 2017 – Raised $16 million in Series A funding from top Silicon Valley investors. - August 2016 – Launched the world’s first commercial pizza-by-drone delivery model in partnership with Domino’s. - July 2016 – Conducted the first fully autonomous, FAA-approved drone delivery from a store to a home in partnership with 7-Eleven. - June 2016 – Completed the first fully autonomous, FAA-approved ship-to-shore drone delivery in collaboration with Johns Hopkins. - April 2016 – The Flirtey drone used to make the first FAA-approved delivery in the U.S. accepted into the Smithsonian’s National Air and Space Museum, alongside the Space Shuttle Discovery and the Wright Flyer. - March 2016 – Conducted the first fully autonomous, FAA-approved urban drone delivery in the U.S. - July 2015 – Completed the first FAA-approved drone delivery on U.S. soil in collaboration with NASA Langley Research Center. - Summer 2015 – Graduated Y Combinator. - 2013 – Founded the first drone delivery service in the world.

YC W21
Flux Auto logo

Flux Auto

General Autonomy for Controlled Spaces

Flux Auto is building autonomous mobility technology to fully automate the movement and operation of vehicles in controlled spaces. Using Flux's solutions customers can reduce their dependency on human drivers, while also increasing productivity and reducing operating costs. Flux is currently deploying in warehouses, farms and mines.

YC S25
Flywheel AI logo

Flywheel AI

Waymo for excavators

Flywheel AI converts any existing excavators for contractors to enable remote ops to increase safety and productivity, and use robotics context dataset to train autonomous policies.

YC F24
Forerunner AI logo

Forerunner AI

AI that gets aircraft flying faster

Forerunner is an AI-powered platform for aircraft maintenance, repair, and overhaul.

YC W25
Forge Automation logo

Forge Automation

Software Enabled CNC Parts Supplier

Forge Automation runs software enabled factories that deliver custom metal parts in four days or less. Instead of mechanical engineers having to wait two to three weeks for their low volume CNC parts, they can simply upload a CAD model on our platform and we will ship it out in four days or less. We aim to give mechanical engineers the "Amazon experience" for custom metal parts.

YC X25
Foundation Industries logo

Foundation Industries

We supply hard tech companies with critical components.

Foundation Industries supplies components to hard tech companies with a sharp focus on quick turn ability. Our manufacturing processes are purpose built for the high mix nature of prototype work which allows us to command better margins and turn times. One of the major reasons U.S. Manufacturing has fallen behind is a lack of urgency. If I were to order a part in Shenzhen at 8 AM, it would be on my desk by lunch time. This compounds over time and we look to bring that same power law back to the Unites States starting in the Bay Area. Our first capability that we are starting with is high precision 5 axis milling. If you are in need of parts on a quick turn feel free to reach out to us at : founders@foundation-industries.com. We are doing a controlled release of the service to if you would like to give us a shot we will forward you a link and access key.

YC S18
Four Growers logo

Four Growers

Robots that feed the world - robotic harvesting and analytics

Four Growers was founded to provide healthy, affordable, local produce by reducing the production costs of greenhouse growers through robotics technology. We are positioning ourselves to be the automated solutions provider for greenhouse crop management. We are working closely with various greenhouse growers to develop a tomato harvesting robot. Our technology relies on two layers of protection, patents filed protecting the physical design of the robot and a proprietary algorithm that controls the robot's decision making. Our solution is not only capable of harvesting the tomatoes, but also of performing a quality check and packaging.

YC W14
GBatteries logo

GBatteries

Enabling li-ion batteries to charge ultra fast without compromising…

Our technology enables li-ion batteries to charge extremely fast while retaining long cycle life using smart control algorithms.

YC S16
GTRACK Technologies logo

GTRACK Technologies

Nanoparticle tracers for reservoir characterization during hydraulic…

Y Combinator S16 Batch. Nanoparticle fluorescent tracers for reservoir characterization in geothermal and oilfield applications.

YC W16
Gecko Robotics logo

Gecko Robotics

AI + Robotics for the Built World

Gecko Robotics is the pioneer of AI + Robotics [AIR technology], transforming how the world builds, operates, and maintains its most critical infrastructure for a more reliable and sustainable future. Using fixed sensors and robots that climb, crawl, swim, and fly, we combine first-order data layers with the predictive power of AI into a single source of truth for the physical world. Cantilever™ is our operating platform, powered by AIR technology, that empowers teams to achieve operational excellence through actionable data for immediate and long-term planning.

YC W20
G

Genecis Bio

Makes guilt-free plastics from food waste

YC W22
Glow Energy logo

Glow Energy

Unlocking Virtual Power Plants for rental properties

Glow Energy is a mission-driven company dedicated to making the built environment more sustainable. Our software empowers rental property owners to transform their buildings into Virtual Power Plants that drive sustainability and financial benefits for tenants, property owners, and clean energy infrastructure developers.

YC W21
GreaseBoss logo

GreaseBoss

GreaseBoss verifes industrial machinery is greased correctly

Our hardware and software product verifies industrial machines are greased correctly. Incorrect greasing is the number one cause for machinery failure and costs $21bn per annum.

YC W19
Green Energy Exchange logo

Green Energy Exchange

We deliver affordable renewable energy direct to customers and are…

The Green Energy Exchange delivers affordable renewable energy direct to homes and businesses. The company offers the most affordable green energy plans in the market and is dedicated to increasing the demand for renewable energy by offering to clean energy at affordable prices. By removing middleman and inefficiencies we can provide lower prices to consumers, higher revenues to generators and help increase the adoption of clean energy sources. Empowering people to buy renewable energy at great prices will help move us to a cleaner and greener future. We are a licensed retail electric provider and operate in Texas currently.

YC W21
Gridware logo

Gridware

Protecting the grid today, preparing the grid for tomorrow

Gridware exists to enhance and protect the mother of all networks: the electrical grid. The grid touches everyone and makes our modern economy possible. But it’s also fragile. When the grid is compromised, everything grinds to a halt, and the consequences can be dire: wildfires burn, land is destroyed, property is damaged, progress stops, and lives are lost. Our team builds smart sensors that help utility companies to immediately detect, find, and fix outages and take steps to prevent new outages, and other related disasters, from happening at all. The need for power will only increase. We protect the grid of today while we build the grid of tomorrow. Gridware is privately held and backed by the best climate-tech and Silicon Valley investors. We are headquartered in the Bay Area in northern California.

YC X25
GroundControl logo

GroundControl

Vertical AI for highly-regulated manufacturing

GroundControl builds mission-critical software for manufacturers in highly-regulated industries (aerospace, defense, medical) Our core product automates lengthy, complex, and regulated quality documentation in aerospace manufacturing. As an example, the Boeing 777 is made up of over 3 million parts sourced from manufacturers around the world. These manufacturers must complete quality documentation for every part on this aircraft (machined parts, printed circuit boards, wire harnesses, assemblies, and more). GroundControl helps manufacturers complete this required documentation accurately, in minutes instead of days.

YC S24
Guardian RF logo

Guardian RF

Drone detection for US defense and national security

The rise of low-cost commercial drones has introduced a new class of asymmetric threats to U.S. national security. Off-the-shelf platforms now deliver ISR, contraband, or payloads with precision, while operating below radar coverage and beyond line-of-sight. These systems—often costing under $1,000—are capable of neutralizing multi-million-dollar defense assets. For drone detection to be viable at scale, sensors must achieve cost parity with the threat. In response, the Department of Defense established multiple initiatives to counter the rapid proliferation of uncrewed aerial systems. The Joint Counter-small UAS Office (JCO) coordinates policy and acquisition across services. The Base Defense Cross-Functional Team enables persistent perimeter security for CONUS and OCONUS installations. Falcon Peak, Red Sands, and related exercises are accelerating deployment of counter-UAS technologies in complex environments. This threat is no longer exclusive to military operations overseas. It now directly targets the U.S. homeland. In 2025, an executive order designated the protection of American airspace sovereignty a national priority, recognizing that uncrewed systems present both surveillance and kinetic risks within the United States. That same year, a domestic extremist plotted to destroy a Tennessee power substation using a drone rigged with C-4 explosives—a plan disrupted by undercover federal agents. In July 2025, an unauthorized drone collided with a rescue helicopter during disaster response operations in Kerr County, Texas, forcing an emergency landing and halting flood relief efforts. These are not isolated incidents—they reflect a broader shift in drone-enabled threats against homeland infrastructure and public safety. Guardian RF builds passive, radiofrequency-based drone detection systems for force protection and critical infrastructure defense inside the United States. Our systems are fielded under an AFWERX Direct-to-Phase-II SBIR with the 30th Security Forces Squadron at Vandenberg Space Force Base, deployed by local and state law enforcement, and integrated into commercial security operations. We were selected as a finalist for Falcon Peak 25.2, the Department of Defense’s premier counter-UAS exercise. Scout is a passive RF sensor for fixed, mobile, or temporary deployments. It detects and classifies drone control signals—including modified variants of DJI, Crossfire, and ExpressLRS—at standoff ranges. Scout supports direct integration into TAK and other operational APIs and is managed through GRF-SECURE, our secure interface for live monitoring, threat alerting, and forensic review. Mosaic extends coverage in austere environments, enabling persistent low-altitude monitoring and classification of non–Remote ID drones across complex terrain—without active emissions or mesh dependency. Built in the United States, Guardian RF delivers scalable, automated, and cost-aligned drone detection—passive by design and hardened for real-world deployment across the homeland.

YC W21
H3X Technologies logo

H3X Technologies

The lightest electric aircraft motors in the world.

At H3X, we are making the lightest, high-power electric propulsion systems in the world to enable a large-scale revolution in aircraft electrification. Our first product is a 250-kW (335 HP) integrated motor drive in an 18 kg package. It combines the electric motor, inverter, and gearbox into a single powerful unit and is the culmination of patent pending innovation in multiple areas.

YC X25
HABIT logo

HABIT

Reshaping neighborhood services with robotics.

HABIT will deploy on-demand robotic labor to you — and to restaurants, hotels, stores, and farms in your neighborhood. Our first vertical (the $45B car wash and auto detailing market) is high cost, labor intensive, and already offered in thousands of locations across America.

YC S21
HEO Robotics logo

HEO Robotics

We visually monitor space objects for governments and defense

HEO Robotics visually monitors satellites for governments and defence. We do this by transforming existing Earth observation satellites with software to image other satellites as they fly close by.

YC W19
Heart Aerospace logo

Heart Aerospace

Heart makes electric airplanes with an all-electric range of 250 miles

Heart makes electric airplanes. We’re based in Sweden, and we’re developing a 19-passenger aircraft (EASA CS-23/FAA Part 23 certifiable). The plane will have an all-electric range of 250 miles and a backup generator for reserves and range extension. We have signed LOIs with Scandinavian Airlines SAS (the biggest airline in northern Europe), BRA and Wideroe for 86+ planes.

YC S22
Hedgehog logo

Hedgehog

Building robotic mushroom farms

Hedgehog builds robotic mushroom farms. Our robots eliminate labor and our AI optimizes grow conditions to increase yield. We’ll soon grow mushrooms and fungi for <1/3rd the cost of leading growers. Fungi may address our food system’s biggest problems: they transform agricultural waste into protein-rich foods with near-zero environmental impact. Hedgehog’s technology is unleashing fungi as our next major food source.

YC S21
Heimdal logo

Heimdal

Affordable and verified direct air carbon capture and storage

Heimdal builds machines that permanently capture and store atmospheric CO2. We are building technology that profitably captures CO2 with this tax credit, right here in the United States. Our first deployment is Bantam, the largest DAC facility in the US with the lowest cost per ton anywhere in the world.

YC S14
Helion Energy logo

Helion Energy

Building the world's first fusion power plant

Helion is creating the world’s first fusion power plant, enabling a future with unlimited zero-carbon electricity.

YC W21
Hermes Robotics logo

Hermes Robotics

Autonomous street sweeping as a service by retro-fitting vehicles