Quantum Computing Inc. is a Hoboken, New Jersey company that operates a foundry in Tempe processing thin film lithium niobate, known as TFLN, for photonic integrated circuits; the foundry held its grand opening on May 12, 2025, and in a filing for the quarter ended June 30, 2026 the company named the scaling of its Arizona TFLN facility a significant execution risk. It is a Delaware corporation and has been listed on the Nasdaq Stock Market since July 15, 2021, under the symbol QUBT. It took its current name on February 22, 2018, when it redomiciled to Delaware, and on June 16, 2022 it merged with QPhoton, a developer of quantum photonic systems. The company says the Tempe foundry is designed to serve customers seeking U.S.-based manufacturing of high-performance photonic chips, and that it offers both front and back end processing, including packaging, for a 150 mm wafer line. At December 31, 2025 it had 72 full-time employees and 5 part-time contract staff company-wide, 55 of them focused on product development, and its 2025 revenue was $682 thousand, up from $373 thousand in 2024. Those figures predate its 2026 acquisitions, and the filing gives no Arizona headcount.
The Tempe site sits at the chip fabrication stage of the photonics supply chain. The company's 2025 annual report describes it as a TFLN chip research and development, prototyping and small-batch manufacturing facility, and the company says its foundry services there will make available a range of custom TFLN chips for existing commercial markets, including optical devices such as electro-optical modulators. Its foundry page presents TFLN as a key enabler of next-generation telecom and datacom hardware running at 1.6 Tbps, 3.2 Tbps and beyond. The company's direct AI product is Neurawave, a photonics-based reservoir computer for machine learning that it launched in November 2025; no source states that Neurawave is made in Arizona, so Arizona AI describes the Tempe role as photonic chip fabrication rather than AI computing.
The company announced on September 21, 2023, that it had chosen ASU Research Park in Tempe for a new quantum photonic chip manufacturing facility. It said it had already placed deposits on long-lead equipment and paid other expenses for the facility of approximately $2 million, and that the landlord had agreed, as a lease incentive, to provide a significant portion of the leasehold improvements. Press coverage that month reported a lease of 9,200 square feet at 2050 E. ASU Circle, Suite 107, with plans to begin chip manufacturing in the first half of 2024; the company later said initial chip production was underway in October 2024. The company stated that the intended uses of an $8.25 million convertible note issued on August 6, 2024, included capital spending to outfit the Tempe fab; the filing does not say how much was spent there, and the note was repaid on November 18, 2024 [not independently verified]. In mid-2024 the company said it was on schedule to establish the fab in the fourth quarter of 2024; its annual report says the buildout was substantially completed in March 2025. On October 22, 2024, it said the foundry was entering its final construction phase with initial chip production underway, and it reported a partial delivery of its first foundry customer's order, shipped to a customer in Asia, in December 2024.
In January 2025 the company reported third and fourth foundry purchase orders, from a European technical university and a Canadian photonic integrated circuit design house, which it said was its first non-research customer. A securities class action filed in February 2025, described below, alleges the company overstated its foundry orders and the foundry's scale; these are allegations, not findings. Its annual report says the buildout was substantially completed in March 2025, and the company held a ribbon cutting for the Tempe foundry on May 12, 2025, saying the facility was operational and fulfilling existing customer pre-orders. The annual report describes the space as 9,261 square feet of manufacturing, laboratory, clean room and office space in a multi-tenant building, under a 51-month lease ending November 30, 2028. The 2023 announcement had described the location as five acres within the 320-acre research park; that wording is the company's own and does not match the leased space reported in the filing.
The company reported in August 2025 a contract from the National Institute of Standards and Technology for the design and fabrication of TFLN photonic integrated circuits, with a performance period from June 16, 2025 to April 15, 2026, and called it its first direct government contract for its TFLN foundry services. In the same release it reported a chip order from an unnamed Fortune 500 science and technology company serving defense, intelligence, civil and commercial markets. That release does not name Tempe or Arizona, and the contract value was not disclosed. No report on the contract's results after the August 2025 release was found.
On February 25, 2025, a securities class action was filed in the New Jersey District Court against the company and certain current and past officers. A plaintiff law firm's summary of the complaint says it alleges that the defendants overstated the company's progress in developing the TFLN foundry, the foundry's scale, and orders for its TFLN chips. These are allegations, not findings. The complaint cites reports by Iceberg Research and Capybara Research, and the company has moved to dismiss [not independently verified]. No ruling on that motion was found in sources checked through October 2026. The company's business has also grown beyond Tempe: it completed the purchase of Luminar Semiconductor for $110 million in cash on February 2, 2026, and in June 2026 it acquired NHanced Semiconductors, a U.S. packaging foundry, which it says launched its Fab 2 initiative. No source places Fab 2 in Arizona, and the company's estimate of $70M-$90M for Fab 2 and other capital spending is not stated to be for Arizona. In a mid-2026 quarterly filing the company listed the scaling of its Arizona TFLN facility, together with the planned Fab 2 and the integration of its acquisitions, as significant execution risks.
An October 2026 investor presentation lists Tempe as the company's chip foundry for TFLN research and development fabrication and photonic integrated circuit manufacturing, among sites in New Jersey, Massachusetts, California, Illinois, North Carolina and Indiana [not independently verified]. The same presentation's 2024-2026 roadmap still lists completing and commissioning Fab 1 for TFLN photonic chips in Tempe. For Arizona, the facts describe a leased TFLN research and development and small-batch manufacturing facility at ASU Research Park, with its scale disputed in a pending securities class action and its scaling named by the company as an execution risk. Public filings give no Arizona headcount and no total Arizona investment.