IonQ at a glance
As of- [1] Market cap: companiesmarketcap.com, September 5, 2026
- [2] Founded: Wikipedia (retrieved September 5, 2026)
- [3] Headquarters: Wikipedia (retrieved September 5, 2026)
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Company Snapshot
IonQ is a quantum computing company, based in College Park, Maryland, USA, founded 2015 by Christopher Monroe, Jungsang Kim.
Recent changes
- Oct 12, 2026Oct 12, 2026Acquired for $1.3B (up to) Business Wire
- Oct 12, 2026Oct 12, 2026IonQ Acquires Elisity For Up To $1.3 Billion Pulse story
- Sep 5, 2026Sep 5, 2026First reported market cap: $16.01B companiesmarketcap.com
- Aug 10, 2026Aug 10, 2026IonQ Completes Its Acquisition of SkyWater Technology Pulse story
- Aug 6, 2026Aug 6, 2026IonQ Lands $28M DARPA Deal for Atomic Clocks Pulse story
Earlier changes (1)
- Jul 31, 2026Jul 31, 2026IonQ Completes $1.8B Acquisition of SkyWater Technology Pulse story
Debt, IPO & other events
not counted in equity raised| Date | Event | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| Oct 12, 2026 | acquisition | $1.3B (up to) | — | Business Wire |
Investors
Latest Pulse
- Oct 12, 2026IonQ Acquires Elisity For Up To $1.3 BillionIonQ agreed to buy Zero Trust security startup Elisity in an all-stock deal worth up to $1.3 billion, including a $150 million earnout, expected to close in the fourth quarter.→
- Aug 10, 2026IonQ Completes Its Acquisition of SkyWater TechnologyIonQ closed its $1.8 billion acquisition of chip foundry SkyWater Technology, calling itself the only vertically integrated, full-stack quantum computing platform company as a result.→
- Aug 6, 2026IonQ Lands $28M DARPA Deal for Atomic ClocksIonQ secured a $28 million DARPA contract extension to scale production of its Evergreen-05 optical atomic clocks, expanding beyond quantum computing into defense-grade timing hardware.→
- Aug 3, 2026AI Infrastructure's Real Exit Ramp Is M&A, Not IPOsThree separate deals in the past week -- Nscale buying Anyscale, Okta buying Permiso, and IonQ closing on SkyWater -- show strategic acquisitions, not public listings, are becoming AI infrastructure's dominant exit path this cycle.→
- Jul 31, 2026IonQ Completes $1.8B Acquisition of SkyWater TechnologyIonQ closed its $1.8 billion cash-and-stock purchase of SkyWater Technology on Friday, creating what it calls the only vertically integrated, full-stack quantum computing company with its own domestic chip foundry.→
Coverage Timeline
newest first- Oct 12, 2026BIG TECHIonQ Acquires Elisity For Up To $1.3 Billion$1.3B All-Stock Deal→
- Aug 10, 2026BIG TECHIonQ Completes Its Acquisition of SkyWater Technology$1.8B deal→
- Aug 6, 2026AIIonQ Lands $28M DARPA Deal for Atomic Clocks$28M contract→
- Aug 3, 2026FUNDINGAI Infrastructure's Real Exit Ramp Is M&A, Not IPOs→
- Jul 31, 2026BIG TECHIonQ Completes $1.8B Acquisition of SkyWater Technology$1.8B acquisition→
All Coverage
BIG TECH$1.3B All-Stock Deal
IonQ Acquires Elisity For Up To $1.3 Billion
IonQ agreed to buy Zero Trust security startup Elisity in an all-stock deal worth up to $1.3 billion, including a $150 million earnout, expected to close in the fourth quarter.
DEEP DIVE
IonQ Completes Its Acquisition of SkyWater Technology
BIG TECH$1.8B deal
IonQ Completes Its Acquisition of SkyWater Technology
IonQ closed its $1.8 billion acquisition of chip foundry SkyWater Technology, calling itself the only vertically integrated, full-stack quantum computing platform company as a result.
BRIEF
IonQ Lands $28M DARPA Deal for Atomic Clocks
AI$28M contract
IonQ Lands $28M DARPA Deal for Atomic Clocks
IonQ secured a $28 million DARPA contract extension to scale production of its Evergreen-05 optical atomic clocks, expanding beyond quantum computing into defense-grade timing hardware.
BRIEF
AI Infrastructure's Real Exit Ramp Is M&A, Not IPOs
FUNDING
AI Infrastructure's Real Exit Ramp Is M&A, Not IPOs
Three separate deals in the past week -- Nscale buying Anyscale, Okta buying Permiso, and IonQ closing on SkyWater -- show strategic acquisitions, not public listings, are becoming AI infrastructure's dominant exit path this cycle.
IonQ Completes $1.8B Acquisition of SkyWater Technology
BIG TECH$1.8B acquisition
IonQ Completes $1.8B Acquisition of SkyWater Technology
IonQ closed its $1.8 billion cash-and-stock purchase of SkyWater Technology on Friday, creating what it calls the only vertically integrated, full-stack quantum computing company with its own domestic chip foundry.
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IonQ FAQ
What is IonQ's market cap?
IonQ's market capitalization was $16.01B as of September 5, 2026, according to companiesmarketcap.com.
Is IonQ publicly traded?
Yes. IonQ trades under the ticker NYSE: IONQ, with a market cap of $16.01B (September 5, 2026, companiesmarketcap.com).
When was IonQ founded and where is it based?
IonQ was founded in 2015 and is headquartered in College Park, Maryland, USA, according to Wikipedia.
Sources & methodologyshow
Where these figures come from
- Business Wireprimary source1 fact
- companiesmarketcap.comresearch database1 fact
Figures are labelled Reported (a source states it), Estimated, Derived (computed from other facts) or Rumored (in talks / unconfirmed). Rumors never replace a confirmed figure. Each figure keeps its own as-of date; history is preserved rather than overwritten.