Electrifying the Backbone of American Industry: Why We’re Doubling Down on Harbinger

Harbinger raises a $240M Series D as it transforms the overlooked medium-duty truck market.

The money in electrification has always flowed to passenger cars and long-haul trucks. John Harris looked instead at the vehicles in between — the delivery trucks and work trucks that quietly run the economy — and saw a massive, overlooked opportunity.

This week Harbinger , which TechNexus Venture Collaborative and our corporate partner THOR Industries have backed since its earliest days, announced a $240 million Series D. We’re proud to be part of it.

We first sat down with John and the Harbinger team in 2022, a year after the company was founded. They had spent years inside electrification and battery work, and they’d concluded that the medium-duty segment was being served by trucks that drove like they did decades ago. Most of the EV industry was chasing passenger cars or long-haul tractors. Harbinger wanted the delivery trucks, work trucks and motorhomes that sit in between, and they wanted to design them from a clean sheet rather than convert a diesel chassis.

That meant building the batteries, the drivetrain and the chassis themselves, which is expensive and unforgiving. We made the bet anyway, co-leading Harbinger’s Series A alongside THOR and Ridgeline, because the team was candid about the hard parts and because the logic held up every time we tested it. If you control the core systems, you control the performance, the cost and the schedule. If you don’t, you’re waiting on someone else's roadmap.

Before we invested, we went to see it. Alongside THOR, we were part of the conversations from the very start, when the two companies were still defining what a relationship could look like. We walked the production floor at Harbinger’s Southern California plant, watched the battery assembly area, and stood by while they ran transmission tests. The pitch deck came to life, and we walked out convinced Harbinger was on the verge of something big in electrification.

The partnership that made it more than an investment

What started as a venture investment has become exactly the kind of corporate-startup collaboration TechNexus exists to build. In the earliest days my role, and our team's, was to sit between two very different organizations and help them hear each other, so that THOR and Harbinger lined up on strategy and not only on the financing. THOR brought deep knowledge of what RV buyers want, John's team brought the engineering. Together, Harbinger and THOR produced the world's first range-extended electric Class A motorhome on Harbinger's chassis, and the vehicle has since collected recognition from Fast Company, TIME and RV Business.

I’ve heard the same thing from corporate leaders for years: they want to work with startups, and they aren’t sure how to start. Harbinger is the example of what it looks like when it works. A large customer shapes the product early. A founder listens. And both sides end up with something neither would have built alone.

What the last few years have shown

Harbinger moved from founding to producing hundreds of vehicles in four years. It built an order book that includes FedEx, which placed an order for 2,000 all-electric trucks valued at more than $300 million. And it has raised more than $650 million since 2021 from investors who looked hard at the economics.

Harbinger is taking the same first-principles approach beyond trucks and into energy storage, power generation, autonomy software and defense applications, while continuing to ramp its medium-duty manufacturing capacity. The things that make a good electric truck — battery systems, drivetrains and software that keeps drivers safe — are the same things a lot of industries now need. Harbinger didn’t stumble into that. It built the capability on purpose and is now pointing it at bigger problems.

John leads with engineering and is honest about what’s difficult, which is the trait I trust most in a founder building something physical. He came out of Anduril, and the team keeps attracting people who’ve done this before at Tesla and others in the sector. And the demand is coming from customers who run real fleets and have to make the numbers work.

It’s been a privilege to watch a group of builders take an idea few people wanted to touch and turn it into a manufacturer that FedEx, THOR and some of the best-known growth investors in the world are backing. We’re excited to keep building alongside John and the team.

By Terry Howerton at TechNexus Venture Collaborative