THE WESTCHESTER BRIEF
Wednesday, June 11, 2026
SEEQC, Inc. of Elmsford just hit a $1 billion valuation in quantum computing. Its merger is closing now. Almost nobody here knows it exists.
SEEQC, Inc. is a quantum computing hardware company headquartered in Elmsford. It manufactures superconducting quantum chips — the physical layer that makes quantum computing possible — in a Westchester facility expanded with a $3 million Empire State Development grant. In January, the company announced a merger with Allegro Merger Corp. valuing it at approximately $1 billion. The deal was expected to close in Q2 2026. That window closes at the end of this month.
This is not software. SEEQC builds hardware. That distinction matters because quantum hardware manufacturing is capital-intensive, geographically anchored, and strategically significant. Every major government and technology company on the planet is racing to control this technology. SEEQC chose to build its manufacturing infrastructure in Westchester.
Why it matters: Westchester's economic identity is built around real estate premiums, financial services commuters, and professional-class households. SEEQC is a different kind of anchor — a deep-tech manufacturer operating at the frontier of computing, in a facility in Elmsford that most residents have driven past without knowing what happens inside it. The county's broader technology positioning — Element 46's 11th cohort Demo Day is today, and Westchester joined the national Tech Week calendar for the first time this year — suggests this is not a one-off. It is a thesis being built, company by company.
Listen to the full episode on The Westchester Brief, available on all podcast platforms.
QUICK HITS
Element 46 Demo Day today. Eight startups from the spring 2026 cohort pitch investors and government officials at today's Demo Day. The program has now run 11 cohorts. SafeStops Global, an Element 46 alum, presented during national Tech Week this week alongside Google, OpenAI, and IBM on a platform reaching over 300,000 founders and investors.
NY-Presbyterian settlement names Westchester sites. Attorney General Letitia James announced a settlement with New York-Presbyterian Hospital following an investigation into how the health system treated patients with mental health conditions. Westchester sites were specifically named in the settlement. The AG's full settlement document — available at ag.ny.gov — details what changes NYP is required to make.
Rent Guidelines Board vote June 22. The Westchester County Rent Guidelines Board votes on rent increase limits for all stabilized leases beginning October 1. Last year: 2% for one-year leases, 3% for two-year leases. Landlords and tenants are further apart this cycle. The outcome affects tens of thousands of Westchester households.
ONE MORE THING
Did you know there was a quantum computing company in Elmsford? Reply — I'm curious how many Westchester residents even know what quantum computing is, let alone that it's being manufactured here.
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