PlusAI takes a third run at listing, this time at $800m

PlusAI, the autonomous-trucking software company legally named Plus Automation, will go public through a merger with Texas Ventures Acquisition III Corp, a blank-cheque vehicle backed by funds managed by Yorkville Advisors Global, at roughly an $800 million equity value. Bloomberg reported the deal on September 2, 2026, with fuller terms out on September 3. It is the company’s third attempt at a public listing.

The first, a 2021 combination with Hennessy Capital Investment Corp V, carried a valuation of about $3.3 billion and was terminated roughly six months later. The second, announced in June 2025 with Churchill Capital Corp IX at about $1.2 billion, was terminated in April 2026 on market conditions. Same company, same technology, three prices: $3.3bn, $1.2bn, $800m.

The SPAC window is open again because the IPO window is not

A conventional listing requires a bank to price the company against comparables. For driver-out autonomy in 2026 those comparables are unhelpful: a handful of loss-making public names, no consensus revenue multiple, and a sector where the gap between a demonstrated capability and a booked contract is still measured in years. A SPAC does not need that consensus. It needs a sponsor, a trust and a shareholder vote.

That is the same route Agility Robotics took to the public market, and it is the tell running through the physical-AI listing window more broadly. Companies with a genuine operating story and no priceable multiple are choosing the vehicle that lets them set their own number and negotiate it with one counterparty. The contrast is Unitree’s conventional IPO, which cleared a real book-build because it had shipped product and revenue an underwriter could anchor to.

Read the $800 million, not the $800 million

The headline number is the least interesting part. A SPAC valuation is an agreed input to a merger, not a market clearing price, and the amount of cash that actually arrives depends on redemptions against the roughly $236 million in trust. Redemption rates on 2026 de-SPACs have frequently run high; the committed convertible financing in the deal exists precisely because the trust cannot be relied upon.

What the sequence does establish is a repricing of the same asset by roughly 75 per cent over five years, in a period when PlusAI moved from pre-revenue to company-reported bookings. That is not a judgement on the company — it is a judgement on what the market will now pay for autonomy revenue, and it is a useful marker for every private autonomy company still holding a 2021-vintage mark. The counter-argument is that trucking autonomy has narrowed to a licensing model with named OEM partners, which is a more defensible business than the 2021 pitch even at a third of the price. Both things are true.

What to watch

Redemptions at the shareholder vote, and whether the contracted-revenue target holds. A de-SPAC that closes with most of its trust redeemed lists with a share price and very little cash, which is the outcome that has ended several autonomy listings early. The prior two deals died before that test. This one has to survive it.