Harbinger raised $240 million in Series D funding to push its electric vehicle platform into energy storage, power generation, autonomy, and defense while it ramps production for a 2,000-truck order from FedEx. Tiger Global, Capricorn’s Technology Impact Fund, and Ridgeline co-led the round, the Garden Grove, California, company said Thursday.
The FedEx order, valued at more than $300 million, is due by the end of 2027. Harbinger said the new money will fund the continued ramp of its medium-duty manufacturing capacity alongside the newer businesses.
The release describes Harbinger as “an American industrial technology platform company” and lists commercial vehicles as one of five markets the new funding covers.
“Electrification is at the core of everything we do, and increasingly, electrification is at the core of industry, defense, mobility, and AI,” said John Harris, Harbinger’s co-founder and CEO, in the release.
What Harbinger builds today
Harbinger builds Class 4 through Class 6 chassis in all-electric and plug-in hybrid versions and designs its own powertrain, battery system, steering, and brakes. Its HC Series Cab, unveiled in March, adds a gasoline range extender good for up to 500 miles, depending on configuration, and up to 15 kilowatts of exportable power, so crews don’t need a separate generator. The company also acquired autonomy software maker Phantom AI.
Harbinger’s first defense deal came this summer: it is building the platform for an uncrewed Army supply vehicle under an American Rheinmetall contract. It has also started selling its batteries for energy storage, Bloomberg News reported. The release did not name any energy storage or power generation customers.
Round follows $160 million Series C
The Series D follows a $160 million Series C last November, when FedEx placed an initial order for 53 trucks. Harbinger said it has raised more than $650 million since its 2021 founding.
Fidelity Management & Research Company, Squarepoint Capital, and Xantium joined as crossover investors, and Maniv and Greycroft returned. In an interview with Bloomberg News, Harris said the company has focused on bringing in investors that are “generally crossover or public markets focused.” FedEx and THOR Industries came in as strategic investors through TechNexus, the release said. Paul Melander, FedEx’s senior vice president of safety and transportation, recently joined Harbinger’s board. Goldman Sachs and Morgan Stanley served as placement agents.
BuildGroup, named in the release as a strategic investor in data centers, also took part. Tiger Global tied its investment to the AI buildout.
“Harbinger excels at electrification, and electrification has become one of the most pressing bottlenecks of the AI era,” said Griffin Schroeder, a partner at Tiger Global.
Cargo vans drive zero-emission truck growth
Zero-emission trucks reached a record 4.14% of U.S. truck deployments in the second half of 2025, according to CALSTART’s June 2026 Zeroing in on Zero-Emission Trucks market update, as total truck sales fell 35% year over year. Cargo vans supplied 12,158 of the 12,996 new units. Every other segment, including medium-duty step vans and trucks, added 838. Harbinger’s Class 4 through Class 6 trucks fall in that group.
Production pace and undisclosed terms
But challenges remain. Harris told Bloomberg News in September that Harbinger had recently finished its 1,000th vehicle. The FedEx order alone calls for twice that many trucks by the end of 2027.
The release did not disclose Harbinger’s valuation, its current production capacity, or how the new money splits between trucks and the newer businesses. The Army program is in a prototype phase that typically runs three to 10 units, and no contract value has been disclosed.
The company plans to carry the in-house engineering behind its trucks into each new market, the release said.
“Harbinger’s role is not simply to give customers another option,” Harris said. “It is to reset expectations for what critical systems should deliver.”
Why it matters: Fleets pricing medium-duty electric delivery trucks now have a builder backed by Fidelity, Tiger Global, and FedEx itself, with $240 million in fresh capital. Its FedEx deliveries through 2027 will show whether that backing turns into trucks at scale.
