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Quantum Computing Inc

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Nasdaq: QUBTResearchSan Francisco, United StatesEst. 2013
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About

Quantum Computing Inc (QCI) specializes in thin-film lithium niobate (TFLN) photonic quantum computing and is publicly traded on NASDAQ under the ticker QUBT. Its focus is a vertically integrated photonic quantum platform, government relationships, and optical networking. The company raised substantial capital in 2025: $500M in Q3 plus $750M after the quarter ended, totaling more than $1.5 billion in liquidity, with the Q4 placement oversubscribed. Total assets reached $1.6B by December 31, 2025. Q3 2025 earnings beat expectations, with EPS improving from -$0.06 to +$0.01 and revenue of $384k, up 280% year over year. Q4 2025 revenue increased 219% to about $198K. Institutional investors include Sassicaia Capital, Ensign Peak, XTX Topco, Rockefeller Capital, and Geode Capital, and the analyst rating is Strong Buy. QCI completed two acquisitions. On February 2, 2026 it closed the $110M purchase of Luminar Semiconductor, acquired from the bankrupt Luminar Technologies and now a wholly owned subsidiary providing a complete photonics signal chain of lasers, detectors, packaging, and manufacturing. It also completed the acquisition of NuCrypt to expand into quantum communications. QCI opened Fab 1, a thin-film lithium niobate chip foundry in Tempe, Arizona, with production starting in Q2 2025 and a pilot program for early adopter sales. A partnership with POET Technologies aims for data-transfer speeds of 3.2 Tbps using TFLN technology for co-packaged optics and AI connectivity. The company's upcoming Neurawave product targets the high-performance computing industry. QCI has a deep collaboration with NASA, including a fifth task order for quantum remote sensing and LiDAR climate missions, plus contracts for phase unwrapping using the Dirac-3 quantum optimization platform. It completed the first US commercial sale of quantum cybersecurity to a top-5 bank, and in March 2026 placed a QCi Dirac-3 quantum optimization machine on the Quantum Corridor network to broaden cust

Quantum Specifications

Quantum Focushardware

Key People

RL
Robert Liscouski Executive
Chairman

Backed By

Lakestar
Lightspeed Venture Partners
Hillspire
Quantum Coast Capital
Type One Ventures
Trumpf Venture
Gic Government Of Singapore Investment Corporation
Hercules Capital

Research Partners

University Of FloridaUniversity Of Notre DameDartmouth College

Frequently Asked Questions

Quantum Computing Inc (QCI) specializes in thin-film lithium niobate (TFLN) photonic quantum computing and is publicly traded on NASDAQ under the ticker QUBT. Its focus is a vertically integrated photonic quantum platform, government relationships, and optical networking. The company raised substantial capital in 2025: $500M in Q3 plus $750M after the quarter ended, totaling more than $1.5 billion in liquidity, with the Q4 placement oversubscribed. Total assets reached $1.6B by December 31, ...
Quantum Computing Inc is headquartered in San Francisco, United States.
Quantum Computing Inc was founded in 2013.
Yes, Quantum Computing Inc is publicly traded under the ticker symbol QUBT on the Nasdaq.
Quantum Computing Inc operates in the following sectors: quantum software.
Quantum Computing Inc has raised $1.5B+ in total disclosed funding.