The New Hampshire engineering company rebuilding the electric motor from the magnetics up - and quietly powering drones across air, land and sea.
ePropelled, headquartered in Laconia, New Hampshire, builds the intelligent motors inside a new generation of uncrewed vehicles. Its tagline - "Empowering Uncrewed Motion for Air, Land and Sea" - is also its engineering brief.
Every drone, delivery quadcopter, ground robot and autonomous boat shares one unglamorous truth: something has to turn the propeller or the wheel. ePropelled builds that something. The company designs and manufactures intelligent electric motors, motor controllers, starter-generators and power-management systems for uncrewed vehicles - the propulsion layer that decides how far a machine flies, how much it carries, and how long it lasts.
What sets the company apart is where it chose to compete. Rather than assemble airframes or write autonomy software, ePropelled went after the physics underneath: magnetics. Its engineers reworked how a brushless motor's windings are arranged and switched, producing propulsion that is lighter, cooler-running and measurably more efficient than the off-the-shelf motors most integrators bolt on. For a drone builder, that efficiency is not an abstraction. A few percentage points translate directly into extra minutes aloft or a heavier payload over the same distance.
The company frames its remit in one line - "Empowering Uncrewed Motion for Air, Land and Sea" - and treats it as an engineering constraint, not a slogan. A 2-kilogram inspection quadcopter, a long-endurance defense UAV and an autonomous maritime platform are, to ePropelled, three expressions of the same problem: convert stored energy into motion with as little waste as possible.
“Dynamic Torque Switching does what a car's transmission does - shift between torque and speed - except there's no gearbox. Just windings, reconfigured on the fly.”
On ePropelled's patented eDTS architecture, honored with a Frost & Sullivan Product Leadership Award (2021)
An electric motor faces a tradeoff. Wind it for high torque and it struggles at speed; wind it for speed and it strains under load. Gasoline cars solve this with a gearbox. ePropelled's electric Dynamic Torque Switching, or eDTS, solves it electronically. The motor's windings are configured in multiple paths and geometries, each tuned to a different speed-torque output, and the system switches between them in real time to match the demand of the moment.
The payoff is efficiency across the whole operating range, not just one sweet spot - a gain the company measures at 15 percent or more. For a battery-powered vehicle, waste heat is stolen range; recovering it is the closest thing to free performance in the business.
Directional illustration of the 15%+ efficiency improvement ePropelled reports for eDTS; exact figures vary by application.
ePropelled organizes its catalog around the mission a customer is flying - hybrid endurance, raw power, or featherweight efficiency.
Starter-generators and electronic engine starters that pair combustion power with electric drive, extending endurance and range for hybrid-powered UAVs and platforms flying long missions.
A USA-assembled range of brushless motors from 1kW to 20kW, plus intelligent controllers up to 98% efficient and a hybrid engine-starter controller - all wired for ePConnected analytics.
Efficient, US-made propulsion systems for micro and small drones, built to NDAA compliance requirements - the line that completed ePropelled's defense portfolio.
Global drone and UAV manufacturers, defense and allied-government programs, and industrial buyers in pumps, pool & spa, marine and electric mobility. ePropelled sells to the integrators who build the vehicle, not the end pilot.
Limited endurance, range anxiety, and the headache of integrating hybrid propulsion. ePropelled's motors and starter-generators tackle all three - squeezing more mission out of the same energy budget.
Defense, logistics & delivery, energy & utilities, public safety, inspection, agriculture and film - anywhere an uncrewed system needs to do real work for longer.
ISO 9001-certified manufacturing and NDAA-compliant, US-assembled product lines - two phrases that increasingly decide who is allowed to supply defense drone programs at all.
The electric-propulsion field is crowded with motor suppliers - names like T-Motor, KDE Direct, MGM COMPRO and specialist startups such as H3X and magniX. Most compete on power density or price for a given motor size. ePropelled's wager is different: it holds intellectual property in how the motor works, not just how it's assembled. A portfolio of roughly 47 to 67 patents across more than a dozen product lines is the moat, with Dynamic Torque Switching as its most visible expression.
The second differentiator is intelligence. ePropelled bundles connected telemetry and analytics - branded ePConnect - so a motor reports its own performance and diagnostics in real time. For an OEM, that turns a passive component into a data source, useful for tuning missions and predicting maintenance. The third is compliance-by-design: building US-made, NDAA-compliant hardware from the start rather than retrofitting it, which opens doors in defense that are closed to many rivals.
Nick Grewal did not arrive in propulsion by accident. Before ePropelled, he founded Nashoba Networks and sold it to Cisco Systems for $100 million, and has had a hand in the growth of more than 40 high-tech companies. In 2018 he set out to apply that operator's instinct to a harder, more physical problem - and assembled a bench of specialists to do it. In April 2025 he was inducted into the Boston Smart Business Dealmakers Hall of Fame.
The company splits its expertise deliberately across two chief technology officers - one for power and propulsion, one for software and intelligence - alongside commercial and engineering leadership spread across three continents. Magnetics and power-electronics R&D, control software, and manufacturing each sit where the talent for them actually lives: headquarters and manufacturing in New Hampshire, an innovation hub in Coventry, UK, and an engineering center in Chennai, India.
ePropelled is a B2B hardware company. It earns revenue by selling propulsion systems and custom engineering solutions to vehicle makers, with patents as the durable asset underneath. It is a component supplier by design - the arms merchant, not the army - which lets it ride the growth of an entire industry rather than any single platform.
That industry is expanding quickly. Analysts project the broader unmanned-systems market to grow from roughly $26.6 billion in 2024 to about $48.3 billion by 2030, with drone propulsion alone reaching an estimated $11.3 billion by the end of the decade. ePropelled's response has been capacity: its March 2026 Global Innovation Centre in Coventry is built to scale production past one million propulsion systems a year by 2027, aimed squarely at allied long-endurance UAVs, ground robotics and autonomous maritime platforms.
Nick Grewal launches the company to commercialize patented magnetics for high-efficiency electric propulsion.
The eDTS motor architecture is unveiled and honored with a Frost & Sullivan product leadership award.
The company closes a $15 million round from strategic investors to accelerate product and market expansion.
USA-assembled Falcon (1kW-20kW) launches and the Sparrow micro-drone line completes the defense portfolio.
A UK hub targets more than one million propulsion systems annually by 2027 for allied uncrewed systems.
Intelligent electric motors, controllers, starter-generators and power-management systems for uncrewed vehicles across air, land and sea - primarily drones and UAVs.
A patented motor architecture that configures windings in multiple paths and geometries and switches between them dynamically to match speed and torque, improving efficiency by 15% or more - without a mechanical gearbox.
Nick Grewal founded ePropelled in 2018. He previously founded Nashoba Networks, which sold to Cisco Systems for $100 million.
It is headquartered in Laconia, New Hampshire, with R&D and operations in Coventry, UK and Chennai, India.
ePropelled raised a $15 million Series A round in December 2021 from strategic individual investors.