What Atlantic Quantum does

Atlantic Quantum was an MIT spinout founded in 2022 that developed superconducting quantum computing hardware with a focus on solving the scaling bottleneck that constrains conventional systems. Its core technology is a modular chip stack architecture that integrates qubits and superconducting control electronics within the cryogenic stage, reducing the wiring complexity associated with scaling from hundreds to millions of qubits. The company employed Fluxonium qubit technology as an alternative to traditional transmon architectures and partnered with Riverlane on quantum error correction to advance fault-tolerant computing readiness.

The company pursued a B2B model serving government/defense and enterprise quantum computing customers. Its only named commercial relationship was with the U.S. Air Force via a $1.8 million AFWERX contract (jointly with MIT), supplemented by approximately $1.1 million in U.S. Department of Energy funding and earlier SBIR-style grants. Pricing was not publicly disclosed and was effectively quote-based R&D contracting. The company also participated in DARPA's Quantum Benchmarking Initiative from April 2025 as part of a multi-stage federal evaluation of quantum approaches.

In October 2025, Atlantic Quantum was acquired by Google Quantum AI to integrate its modular chip stack and Fluxonium expertise into Google's six-milestone superconducting quantum roadmap targeting one million physical qubits. Following the acquisition, the independent entity ceased operations; the company's website now returns a DNS resolution error. Pre-acquisition, Atlantic Quantum had raised approximately $9.0 million in seed equity led by The Engine (with Glasswing Ventures, E14 Fund, and US Innovative Technology Fund), held 11-50 employees, and maintained a presence in Cambridge, MA with a described Swedish-American corporate footprint.

Name

Atlantic Quantum

Legal name

Atlantic Quantum

Website

https://atlantic-quantum.com

Company type

Private

Founded year

2022

Operating status

Acquired

Headcount range

11–50 employees

Short description

Atlantic Quantum was an MIT spinout developing superconducting quantum hardware with a modular chip stack and Fluxonium qubits to scale fault-tolerant systems, serving U.S. defense and quantum computing customers before its October 2025 acquisition by Google Quantum AI.

Ownership category

akta.pro rank

Product category

Superconducting Quantum Computing Hardware

NAICS

Semiconductor and Related Device Manufacturing (334413), Semiconductor and Other Electronic Component Manufacturing (3344), Electronic Connector Manufacturing (334417)

SIC

Semiconductors & Related Devices (3674), Electronic Connectors (3678)

akta.pro primary industry

Superconducting QPU Systems (HDAGAAAA)

akta.pro secondary industries

QPU Packaging, Interconnects & Chiplets (Quantum Processor Integration) (HDAGAAAJ), Microwave/RF Signal Generation, Up/Downconversion & LO Chains (HDAGABAG), Cryogenic Wiring, Interconnects & RF Cabling (HDAGABAE), Quantum Hardware Architecture & Systems Engineering Research (HDAGAMAB)

Keywords

• Superconducting quantum computing
• Quantum hardware development
• Fluxonium qubit technology
• Quantum error correction
• Fault-tolerant quantum systems

Headquarters

HQ city

Cambridge

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Technology or R&D, Operations, Infrastructure

Revenue model

1. Quantum Hardware Development: B2B development of superconducting quantum computing hardware for enterprise/government customers, with technology integrated into Google's quantum roadmap following October 2025 acquisition.

Distribution channels1 record

Marketing channels1 record

Core offering

Atlantic Quantum develops superconducting quantum computing hardware using a proprietary modular chip stack architecture that integrates qubits and superconducting control electronics within the cryogenic stage. The company's Fluxonium qubit technology addresses the engineering challenge of scaling quantum computers from hundred-qubit processors toward million-qubit machines needed for fault-tolerant quantum computing. Atlantic Quantum was acquired by Google Quantum AI in October 2025 to accelerate scalable superconducting quantum hardware development.

Product overview

Atlantic Quantum was an MIT-founded quantum computing startup that developed superconducting quantum hardware with a focus on modular chip stack technology and Fluxonium qubit architecture. The company was acquired by Google Quantum AI in October 2025. Their core technology integrated qubits and superconducting control electronics within the cryogenic stage to address scaling challenges in quantum computing.

Differentiator

Problem solved

Functional benefit

Products and services

• Modular Chip Stack Technology
• Fluxonium Qubit Technology

Quantifiable outcome

• Scaling from ~100-qubit processors to million-qubit machines for fault-tolerant quantum computing

Named customers1 record

Segments2 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Five partnerships are on record, tiered core.

• Google Quantum AIcoreStrategic or Co-development Partner · 1 October 2025Atlantic Quantum was acquired by Google Quantum AI in October 2025 to boost scalable superconducting quantum hardware development. Atlantic Quantum's modular chip stack technology integrates qubits and superconducting control electronics within the cryogenic stage, which Google uses to more efficiently expand its superconducting quantum systems toward a large-scale, error-corrected quantum computer.
• DARPAcoreStrategic or Co-development Partner · 3 April 2025Atlantic Quantum was selected for DARPA's Quantum Benchmarking Initiative (QBI), a program designed to evaluate multiple quantum computing approaches with the goal of creating a utility-scale quantum computer. The initiative was structured in three stages, with selected firms receiving funding to advance their quantum roadmaps.
• U.S. Air Force / AFWERXcoreStrategic or Co-development Partner · 1 November 2024$1.8 million AFWERX contract awarded to Atlantic Quantum and MIT to advance superconducting quantum processors for U.S. defense applications. AFWERX is the innovation arm of the U.S. Air Force.
• RiverlanecoreTechnology or Integration · 17 July 2024Partnership between Riverlane and Atlantic Quantum on quantum error correction. Riverlane, a quantum computing company focused on error correction, partnered with Atlantic Quantum to advance error correction technologies for superconducting quantum processors.
• MITcoreStrategic or Co-development PartnerAtlantic Quantum was founded at MIT and maintained a research partnership with the university. Together they secured $1.8M AFWERX contract to advance superconducting quantum computing technology for U.S. defense applications.

Scale indicators1 record

Recent moves6 records

Expansion highlights4 records

Direct peers

• Rigetti Computing: Public pure-play superconducting quantum hardware company building multi-qubit QPUs. Direct modality and customer-segment overlap with Atlantic Quantum; both pursue enterprise/government channels for superconducting quantum advantage.
• Alice & Bob: French superconducting quantum hardware startup using cat-qubit architecture for built-in error protection. Comparable in stage, modality, and ambition to build fault-tolerant superconducting systems.
• Quantum Circuits Inc: Yale-spinout superconducting quantum hardware startup focused on error-corrected qubit modules and dual-rail qubits. Closely comparable in scale, stage, and superconducting-modality focus to pre-acquisition Atlantic Quantum.

Broad incumbents

• Google Quantum AI: Alphabet's superconducting quantum hardware program (Willow chip, Sycamore lineage). Now Atlantic Quantum's parent; historically the benchmark competitor in superconducting quantum supremacy milestones.
• IonQ: Public pure-play quantum hardware company using trapped-ion modality. Competes for the same enterprise and government quantum compute customers as Atlantic Quantum, but at a different modality.
• Quantinuum: Honeywell/Cambridge Quantum trapped-ion quantum computing company. Broad quantum platform player with overlapping enterprise/government go-to-market and DARPA ecosystem participation.
• IBM Quantum: Industry-leading superconducting quantum hardware program (Condor/Heron processors) inside a major enterprise-IT vendor. Operates broadly across the quantum stack and represents the primary scale competitor Atlantic Quantum would face as a standalone entity.
• Intel Quantum: Intel's silicon-spin and superconducting quantum efforts, including the Tunnel Falls chip and the Intel Ignite program that incubated Atlantic Quantum. Represents both an adjacent modality and a former ecosystem relationship.

Emerging players

• QuEra Computing: Neutral-atom quantum hardware company spun out of Harvard/MIT. Comparable stage and target market (fault-tolerant computing, government customers including DARPA) but uses a different modality.
• PsiQuantum: Well-capitalized photonic quantum computing company pursuing a million-qubit fault-tolerant system. Comparable in ambition and end-target (utility-scale FTQC) but uses a different modality.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds6 records

Investors8 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Atlantic Quantum