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On the Quantum Valley map · Louisville, mile 04Public
Boulder, CO

Infleqtion

The first publicly traded neutral-atom quantum company. Three commercial products actively shipping: a quantum computer, an atomic clock in Earth orbit, and a sensor in active defense deployment.

Founded
2007
Stage
Public (NYSE: INFQ)
Location
Boulder, CO
Employees
~200

Infleqtion was founded as ColdQuanta in 2007, one of the first companies to directly commercialize research from NIST and JILA in Boulder. It spent its first decade building the atom trap and laser cooling technology that is now foundational to multiple quantum computing approaches. The company rebranded as Infleqtion in 2022 to reflect its broader commercial scope, then went public on NYSE under the ticker INFQ in November 2025 via a SPAC business combination with Churchill Capital Corp X, becoming the first publicly traded neutral-atom quantum company. The deal carried a $1.8B pre-money equity value and over $540M in gross transaction proceeds, including a $126.5M PIPE. Infleqtion now has three distinct commercial products: a gate-based quantum computer using neutral atoms; an atomic clock currently operating in Earth orbit, a direct descendant of the NIST time and frequency research that produced the 2005 Nobel Prize; and a quantum sensor deployed in active defense applications. The company represents the full commercialization arc from federal lab research to publicly traded products.

Key details
Technology
Neutral atoms, atomic clocks, quantum sensors
Total raised
$540M+ gross via SPAC merger (Nov 2025), $1.8B pre-money
Key people
Formerly ColdQuanta; went public Nov 2025 via SPAC merger with Churchill Capital Corp X
Products
Quantum computer, atomic clock in Earth orbit, defense quantum sensor
Notable milestone

Public Nov 2025 via SPAC merger with Churchill Capital X ($1.8B pre-money, $540M+ gross, $126.5M PIPE); atomic clock in orbit; defense sensor in active deployment

neutral atomsatomic clocksquantum sensingpublicNYSE: INFQdefenseBoulder
infleqtion.com
People
Matthew Kinsella
CEO
Related glossary terms
Microkelvin
One millionth of a Kelvin. The temperature regime reached by laser cooling, where neutral atoms and trapped ions are held still enough to act as qubits.
Qubit
The basic unit of quantum information, analogous to a classical bit but able to exist in superposition, a combination of 0 and 1 simultaneously.
Neutral Atom Qubits
Qubits built from individual neutral atoms, laser-cooled and trapped in optical tweezers or lattices. A leading qubit modality with strong scaling potential.
Quantum Decoherence
The process by which a quantum system loses its quantum properties through interaction with its environment. The primary enemy of quantum computation.
Coherence Time (T1, T2)
How long a qubit holds its quantum state before decoherence destroys it. T1 is the energy relaxation time; T2 is the dephasing time. Longer is better.
Laser Cooling
A technique using laser light to slow atoms down, cooling them to temperatures within millionths of a degree above absolute zero. Essential for neutral atom and trapped ion quantum computers.
Optical Tweezers
Tightly focused laser beams used to trap and hold individual atoms or particles in precise positions. A key tool in neutral atom quantum computing.
Atomic Clock
A clock that uses the precise frequency of atomic transitions to keep time. The most accurate timekeeping devices ever built, with quantum computing spinoffs in multiple Colorado companies.
Quantum Sensing
Using quantum systems to make measurements with precision beyond what classical sensors can achieve. One of the most commercially advanced quantum technologies.
NISQ (Noisy Intermediate-Scale Quantum)
The current era of quantum computing: systems with 50-1000+ qubits that are too error-prone for fault-tolerant computation but large enough to be potentially useful for some tasks.
Magneto-Optical Trap (MOT)
The standard first step for cooling neutral atoms: six laser beams and a magnetic field gradient that chill millions of atoms to microkelvin temperatures.
Rydberg Blockade
The effect that gives neutral atoms their two-qubit gates: excite one to a giant orbit and within a blockade radius only a single atom can be excited at a time.
Atom Interferometry
Using matter waves to measure gravity, acceleration, and rotation with extraordinary sensitivity. The quantum sensor behind GPS-free inertial navigation.