The current enthusiasm for quantum computing stocks, you see, is a bit like a schoolboy’s rush for the tuck shop. Everyone’s making a beeline for the obvious sweets – the IonQs and Rigetti Computings of this world. Perfectly respectable firms, of course, but rather like shouting for the waiter when there’s a perfectly good Jeeves-like infrastructure quietly ensuring everything runs smoothly. The real potential for accumulating a tidy little fortune, I’d venture, lies not in the flashy bits, but in the supporting cast – the companies building the foundations upon which this quantum edifice will stand. It’s a dashedly clever bit of thinking, what?
One hears talk of a $72 billion market by 2035, which, frankly, sounds a bit like claiming you’ll build a castle in a day. The industry is scarcely a twinkle in the eye at present, but when a new game is afoot, the chap who backs the right horses can find himself in a remarkably comfortable position. A bit of judicious investment now could yield results that would make even a duke blush. Let’s have a look, shall we, at three firms quietly laying the groundwork for this potentially lucrative spectacle.
1. Infleqtion
Infleqtion (INFQ 0.09%), you see, recently took the plunge and became publicly traded, a first for companies dabbling in neutral-atom quantum computing. Now, what does that mean? Well, most of these quantum chaps are either trapping ions or using superconducting circuits cooled to temperatures that would give a penguin the shivers. Infleqtion, however, uses neutral atoms held in place by lasers. The advantage, you understand, is scalability. They can arrange these atoms in a remarkably flexible fashion without all the fuss and bother of extreme cooling. A rather ingenious solution, wouldn’t you agree?
But here’s the kicker. Infleqtion isn’t just building quantum computers. They’re also producing quantum optical clocks, RF receivers, and even inertial sensors. They’ve already supplied hardware to NASA, the U.S. Department of Defense, and the British government. And they’re collaborating with Nvidia, publishing some rather clever work on materials science applications. They’ve even secured a tidy sum of new funding – over $550 million, if you please – and contracts with the U.S. Army and ARPA-E. They’re even planning to put a quantum atomic clock aboard the International Space Station. This isn’t a company building castles in the air; they’re shipping hardware to places where failure isn’t merely inconvenient, it’s unthinkable. A most promising prospect, indeed.
2. Quantum Computing Inc.
Quantum Computing Inc. (QUBT +5.43%) is taking a fundamentally different tack. Instead of all this fuss with superconducting circuits and trapped ions, they’re building quantum systems using photonics – manipulating particles of light, you see. The crucial advantage? These photonic systems can operate at room temperature, eliminating the need for all that expensive cryogenic cooling. A rather sensible approach, wouldn’t you say?
They recently acquired Luminar Semiconductor, a subsidiary of Luminar Technologies, for a cool $110 million in cash. A clever move, this, securing their supply chain. Luminar Semiconductor manufactures lasers, detectors, and advanced packaging – precisely the photonic components QCi needs. By combining this with their own technology, QCi now controls the entire process, from light generation to detection. They’ve also raised a substantial amount of capital – $1.55 billion, if you please – giving them a comfortable cushion. And, being entirely domestic, they’re well-positioned for government contracts. A most promising setup, wouldn’t you agree? It’s a bit like having all the pieces in place for a particularly satisfying game of whist.
3. Sealsq Corp
Now, here’s a question most quantum investors haven’t considered: what happens to cybersecurity when quantum computers become powerful enough to crack current encryption? The answer, I’m afraid, is that every device connected to the internet becomes vulnerable. Sealsq Corp (LAES +7.27%) is building the locks, you see. They specialize in post-quantum semiconductors – chips embedded with quantum-resistant cryptographic algorithms designed to protect data from “harvest-now, decrypt-later” attacks. A rather prudent precaution, wouldn’t you say?
They’ve confirmed deployments of their semiconductors in the U.S., coinciding with the launch of the “Year of Quantum Security 2026” in Washington, D.C. Their products are being used in multi-factor authentication tokens, smart energy systems, medical devices, and even defense infrastructure. They’ve also partnered with Trusted Semiconductor Solutions to supply U.S. government and enterprise customers. While everyone else is building the means to unlock the digital world, Sealsq is ensuring it remains securely fastened. A most sensible arrangement, wouldn’t you say? Both markets, you see, need to exist for the other to matter.
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2026-03-05 15:53